diff --git a/apps/mobile/src/components/ProviderIcon.tsx b/apps/mobile/src/components/ProviderIcon.tsx
index 964c60ebcbe212a39ae03f5af4b9522bb480d5e5..f833baacd7c37d5f9976d1f329497da020ca6886 100644
--- a/apps/mobile/src/components/ProviderIcon.tsx
+++ b/apps/mobile/src/components/ProviderIcon.tsx
@@ -119,6 +119,18 @@ export function ProviderIcon(props: ProviderIconProps) {
);
}
+ if (props.provider === "muse") {
+ return (
+
+ );
+ }
+
if (props.provider === "pi") {
const foreground = isDarkMode ? "#F5F5F5" : "#0F0F0F";
return (
diff --git a/apps/server/package.json b/apps/server/package.json
index 2aa6a961d6eb84b2ca929740feffcd4444847446..5f81d57f588f9de0384abd9b5727f40e193855f6 100644
--- a/apps/server/package.json
+++ b/apps/server/package.json
@@ -25,7 +25,8 @@
"record:claude-replay": "bun scripts/record-claude-agent-sdk-replay-fixture.ts",
"record:cursor-replay": "node --env-file-if-exists=../../.env --experimental-strip-types scripts/record-cursor-agent-sdk-replay-fixture.ts",
"record:pi-replay": "node scripts/record-pi-rpc-replay-fixture.ts",
- "record:grok-replay": "node scripts/record-grok-acp-replay-fixture.ts"
+ "record:grok-replay": "node scripts/record-grok-acp-replay-fixture.ts",
+ "record:muse-replay": "node scripts/record-muse-msp-replay-fixture.ts"
},
"dependencies": {
"@anthropic-ai/claude-agent-sdk": "^0.3.276",
@@ -33,6 +34,7 @@
"@effect/platform-node": "catalog:",
"@effect/platform-node-shared": "catalog:",
"@ff-labs/fff-node": "0.9.4",
+ "@muse-code/sdk": "1.4.2",
"@napi-rs/keyring": "^1.3.0",
"@noble/hashes": "catalog:",
"@opencode-ai/sdk": "^1.3.15",
diff --git a/apps/server/scripts/record-muse-msp-replay-fixture.ts b/apps/server/scripts/record-muse-msp-replay-fixture.ts
new file mode 100644
index 0000000000000000000000000000000000000000..53572e50837da89bcc0a9cf1e1fca4b4fd9c3a30
--- /dev/null
+++ b/apps/server/scripts/record-muse-msp-replay-fixture.ts
@@ -0,0 +1,304 @@
+// @effect-diagnostics nodeBuiltinImport:off globalTimers:off
+// The SDK's host factory is Promise-based and owns a raw child process, as production's does.
+/**
+ * Records a Muse MSP replay transcript by running a registered fixture's input
+ * through the real orchestrator and the real MuseAdapterV2 against a live
+ * `muse serve`. The host's stdio is teed line by line.
+ *
+ * node scripts/record-muse-msp-replay-fixture.ts --scenario simple
+ *
+ * Uses the machine's own `muse login`. `T3_MUSE_BIN` picks the binary. The
+ * recording replays itself through the fixture's assertions before it is
+ * written, so a run that fails them never replaces the existing transcript.
+ */
+import * as NodeChildProcess from "node:child_process";
+
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { createUuidV7Mint } from "@muse-code/sdk";
+import type { ProviderReplayEntry, ProviderReplayTranscript } from "@t3tools/contracts";
+import * as Console from "effect/Console";
+import * as Duration from "effect/Duration";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Path from "effect/Path";
+import * as Schema from "effect/Schema";
+import { TestClock } from "effect/testing";
+
+import {
+ connectMuseTransport,
+ layer as museReplayLayer,
+ MUSE_MSP_REPLAY_PROTOCOL,
+ MUSE_PROVIDER_KIND,
+ museRecordLabel,
+ MuseOrchestratorReplayHarness,
+} from "../src/orchestration-v2/Adapters/MuseAdapterV2.testkit.ts";
+import * as IdAllocator from "../src/orchestration-v2/IdAllocator.ts";
+import { parseMuseVersion } from "../src/provider/museMaintenance.ts";
+import { makeMuseEnvironment, museServeArgs } from "../src/provider/museSdk.ts";
+import { provideDeterministicTestRuntime } from "../src/orchestration-v2/testkit/DeterministicRuntime.ts";
+import { ORCHESTRATOR_REPLAY_FIXTURES } from "../src/orchestration-v2/testkit/fixtures/index.ts";
+import { materializeFixtureInput } from "../src/orchestration-v2/testkit/fixtures/shared.ts";
+import { runOrchestratorV2ProviderReplayScenario } from "../src/orchestration-v2/testkit/ProviderReplayHarness.ts";
+import { materializeReplayTranscriptWorkspace } from "../src/orchestration-v2/testkit/ReplayTranscriptNdjson.ts";
+import {
+ checkpointWorkspace,
+ makeCheckpointWorkspace,
+} from "../src/orchestration-v2/testkit/ReplayFixtureWorkspace.ts";
+
+const CLOCK_TICK = Duration.millis(20);
+
+function readArgValue(name: string): string | undefined {
+ const index = process.argv.indexOf(name);
+ return index === -1 ? undefined : process.argv[index + 1];
+}
+
+const scenario = readArgValue("--scenario");
+const fixture = ORCHESTRATOR_REPLAY_FIXTURES.find((entry) => entry.name === scenario);
+const variant = fixture?.providers.find((provider) => provider.driver === MUSE_PROVIDER_KIND);
+if (fixture === undefined || variant === undefined) {
+ const names = ORCHESTRATOR_REPLAY_FIXTURES.filter((entry) =>
+ entry.providers.some((provider) => provider.driver === MUSE_PROVIDER_KIND),
+ ).map((entry) => entry.name);
+ throw new Error(`Pass --scenario with a fixture that registers Muse: ${names.join(", ")}`);
+}
+
+const museBinary = process.env.T3_MUSE_BIN ?? "muse";
+const home = process.env.HOME ?? "";
+
+function isRecord(value: unknown): value is Record {
+ return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+/**
+ * Makes a recording portable: the workspace becomes `` and the home
+ * directory `~`, in both directions. Ids, timestamps and model output are kept
+ * as recorded; they are opaque to T3 and carry no secrets.
+ */
+function normalizeEntries(
+ entries: ReadonlyArray,
+ workspaces: ReadonlyArray,
+): ReadonlyArray {
+ const normalizeString = (value: string): string => {
+ let next = value;
+ for (const workspace of workspaces) next = next.replaceAll(workspace, "");
+ return home.length > 1 ? next.replaceAll(home, "~") : next;
+ };
+ const normalizeValue = (value: unknown): unknown =>
+ typeof value === "string"
+ ? normalizeString(value)
+ : Array.isArray(value)
+ ? value.map(normalizeValue)
+ : isRecord(value)
+ ? Object.fromEntries(
+ Object.entries(value).map(([key, entry]) => [key, normalizeValue(entry)]),
+ )
+ : value;
+ return entries.map((entry) =>
+ entry.type === "runtime_exit" ? entry : { ...entry, frame: normalizeValue(entry.frame) },
+ );
+}
+
+const encodeJson = Schema.encodeSync(Schema.fromJsonString(Schema.Unknown));
+
+function encodeTranscriptNdjson(transcript: ProviderReplayTranscript): string {
+ const { entries, ...metadata } = transcript;
+ return [
+ encodeJson({ type: "transcript_start", ...metadata }),
+ ...entries.map((entry) => encodeJson(entry)),
+ "",
+ ].join("\n");
+}
+
+/** Recording follows wall time so a live Muse's own timeouts still elapse. */
+const followWallClock = Effect.gen(function* () {
+ while (true) {
+ yield* TestClock.withLive(Effect.sleep(CLOCK_TICK));
+ yield* TestClock.adjust(CLOCK_TICK);
+ }
+});
+
+/**
+ * Host factory that runs a live `muse serve` and tees every stdio line into
+ * `entries`, in the order the connection writes and reads them.
+ */
+function makeRecordingCreateHost(
+ entries: Array,
+ commandIds: Array>,
+): Parameters[0]["createHost"] {
+ return async (options) => {
+ const hostOrdinal = commandIds.length + 1;
+ const minted: Array = [];
+ commandIds.push(minted);
+ const mint = createUuidV7Mint();
+ const args = museServeArgs(options);
+ const clientRequests = new Map();
+ const serverRequests = new Map();
+ const record = (type: "expect_outbound" | "emit_inbound", frame: unknown) => {
+ const label = museRecordLabel(
+ frame,
+ type,
+ type === "emit_inbound" ? clientRequests : serverRequests,
+ hostOrdinal,
+ );
+ entries.push({ type, ...(label === undefined ? {} : { label }), frame });
+ };
+ record("expect_outbound", { type: "host_start", args });
+ // The binary named by T3_MUSE_BIN, so the recorded version matches what ran.
+ const child = NodeChildProcess.spawn(museBinary, args, {
+ cwd: options.cwd,
+ env: options.environment ?? makeMuseEnvironment(),
+ stdio: ["pipe", "pipe", "inherit"],
+ });
+ const exited = new Promise<{ code: number | null; signal: null }>((resolve) =>
+ child.once("exit", (code) => resolve({ code, signal: null })),
+ );
+ async function* incoming() {
+ let buffer = "";
+ // utf8 decoding keeps a character split across chunks intact.
+ for await (const chunk of child.stdout.setEncoding("utf8")) {
+ buffer += String(chunk);
+ const lines = buffer.split("\n");
+ buffer = lines.pop() ?? "";
+ for (const line of lines) {
+ if (!line.trim()) continue;
+ const frame: unknown = JSON.parse(line);
+ if (isRecord(frame) && typeof frame.method === "string" && "id" in frame)
+ serverRequests.set(frame.id, frame.method);
+ record("emit_inbound", frame);
+ yield `${line}\n`;
+ }
+ }
+ }
+ const close = async () => {
+ child.stdin.end();
+ const timer = setTimeout(() => child.kill("SIGKILL"), 10_000);
+ await exited;
+ clearTimeout(timer);
+ };
+ return connectMuseTransport({
+ transport: {
+ incoming: incoming(),
+ write: async (line) => {
+ for (const part of line.split("\n")) {
+ if (!part.trim()) continue;
+ const frame: unknown = JSON.parse(part);
+ if (isRecord(frame) && typeof frame.method === "string" && "id" in frame)
+ clientRequests.set(frame.id, frame.method);
+ record("expect_outbound", frame);
+ }
+ await new Promise((resolve, reject) =>
+ child.stdin.write(line, (error) => (error ? reject(error) : resolve())),
+ );
+ },
+ close: () => void close(),
+ },
+ readOnly: options.readOnly,
+ mintCommandId: () => {
+ const id = mint();
+ minted.push(id);
+ return id;
+ },
+ exited,
+ close,
+ });
+ };
+}
+
+const readMuseVersion = Effect.sync(() => {
+ const output = NodeChildProcess.execFileSync(museBinary, ["--version"], { encoding: "utf8" });
+ return parseMuseVersion(output) ?? output.trim();
+});
+
+const record = Effect.gen(function* () {
+ const fs = yield* FileSystem.FileSystem;
+ const path = yield* Path.Path;
+ const museVersion = yield* readMuseVersion;
+ const outputPath = readArgValue("--out") ?? (yield* path.fromFileUrl(variant.transcriptFile));
+ const fixtureInput = fixture.buildInput();
+ const workspace = yield* Effect.promise(() =>
+ makeCheckpointWorkspace(`muse-msp-record-${fixture.name}`, fixtureInput.workspaceFiles),
+ );
+ yield* Effect.addFinalizer(() =>
+ fs.remove(workspace, { recursive: true, force: true }).pipe(Effect.ignore),
+ );
+
+ const entries: Array = [];
+ const commandIds: Array> = [];
+ const placeholder = {
+ provider: MUSE_PROVIDER_KIND,
+ protocol: MUSE_MSP_REPLAY_PROTOCOL,
+ version: museVersion,
+ scenario: fixture.name,
+ entries: [],
+ } satisfies ProviderReplayTranscript;
+ const materializeInput = materializeFixtureInput({
+ scenario: fixture.name,
+ fixtureInput,
+ driver: variant.driver,
+ modelSelection: variant.modelSelection,
+ }).pipe(Effect.provide(IdAllocator.layer));
+ const continuationOptions =
+ variant.runContinuationWorker === true ? { runContinuationWorker: true } : {};
+
+ yield* Effect.gen(function* () {
+ yield* followWallClock.pipe(Effect.forkScoped);
+ const materialized = yield* materializeInput;
+ yield* runOrchestratorV2ProviderReplayScenario(
+ {
+ name: `${fixture.name}/muse:record`,
+ transcript: placeholder,
+ commands: materialized.commands,
+ steps: materialized.steps,
+ projectionThreadIds: materialized.projectionThreadIds,
+ runtimePolicyOverride: { ...variant.runtimePolicyOverride, cwd: workspace },
+ },
+ {
+ driver: MuseOrchestratorReplayHarness.driver,
+ decodeTranscript: Effect.succeed,
+ makeProviderAdapterRegistryLayer: () =>
+ museReplayLayer({
+ scenario: fixture.name,
+ createHost: makeRecordingCreateHost(entries, commandIds),
+ environment: makeMuseEnvironment(),
+ }),
+ },
+ continuationOptions,
+ );
+ }).pipe(Effect.scoped, provideDeterministicTestRuntime);
+
+ const transcript = {
+ ...placeholder,
+ metadata: {
+ generatedBy: "live-muse-recorder",
+ model: variant.modelSelection.model,
+ commandIds,
+ },
+ entries: normalizeEntries(entries, [yield* fs.realPath(workspace), workspace]),
+ } satisfies ProviderReplayTranscript;
+
+ yield* Effect.gen(function* () {
+ const replayWorkspace = yield* checkpointWorkspace(fixture.name, fixtureInput.workspaceFiles);
+ const materialized = yield* materializeInput;
+ const replayResult = yield* runOrchestratorV2ProviderReplayScenario(
+ {
+ name: `${fixture.name}/muse:verify`,
+ transcript: yield* MuseOrchestratorReplayHarness.decodeTranscript(
+ materializeReplayTranscriptWorkspace(transcript, yield* fs.realPath(replayWorkspace)),
+ ),
+ commands: materialized.commands,
+ steps: materialized.steps,
+ projectionThreadIds: materialized.projectionThreadIds,
+ runtimePolicyOverride: { ...variant.runtimePolicyOverride, cwd: replayWorkspace },
+ },
+ MuseOrchestratorReplayHarness,
+ continuationOptions,
+ );
+ variant.assertOutput(replayResult, transcript);
+ }).pipe(Effect.scoped, provideDeterministicTestRuntime);
+
+ yield* fs.makeDirectory(path.dirname(outputPath), { recursive: true });
+ yield* fs.writeFileString(outputPath, encodeTranscriptNdjson(transcript));
+ yield* Console.log(`Wrote ${transcript.entries.length} Muse MSP replay entries to ${outputPath}`);
+});
+
+await Effect.runPromise(record.pipe(Effect.scoped, Effect.provide(NodeServices.layer)));
diff --git a/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.test.ts b/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..ffc520bed1c917057910d0f25a6046070c2a50f8
--- /dev/null
+++ b/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.test.ts
@@ -0,0 +1,1049 @@
+import { assert, describe, it } from "@effect/vitest";
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { MspError } from "@muse-code/sdk";
+import {
+ MUSE_DEFAULT_MODEL,
+ EnvironmentId,
+ MessageId,
+ MuseSettings,
+ NodeId,
+ ProjectId,
+ ProviderInstanceId,
+ ProviderDriverKind,
+ ProviderSessionId,
+ ProviderThreadId,
+ ProviderTurnId,
+ RunAttemptId,
+ RunId,
+ ThreadId,
+ type OrchestrationV2AppThread,
+ type OrchestrationV2ProviderThread,
+} from "@t3tools/contracts";
+import * as DateTime from "effect/DateTime";
+import * as Deferred from "effect/Deferred";
+import * as Effect from "effect/Effect";
+import * as Option from "effect/Option";
+import type * as Exit from "effect/Exit";
+import * as FileSystem from "effect/FileSystem";
+import * as Fiber from "effect/Fiber";
+import * as Layer from "effect/Layer";
+import * as Queue from "effect/Queue";
+import * as Schema from "effect/Schema";
+import * as Stream from "effect/Stream";
+
+import * as ServerConfig from "../../config.ts";
+import * as McpProviderSession from "../../mcp/McpProviderSession.ts";
+import type { MuseItem } from "../../provider/museProtocol.ts";
+import type { MuseSdkHost } from "../../provider/museSdk.ts";
+import * as IdAllocator from "../IdAllocator.ts";
+import {
+ ProviderAdapterV2RuntimePolicy,
+ type ProviderAdapterV2Event,
+ type ProviderAdapterV2TurnInput,
+} from "../ProviderAdapter.ts";
+import type { ProviderContinuationRequest } from "../ProviderContinuationRequests.ts";
+import { makeMuseAdapterV2, type MuseAdapterV2Options } from "./MuseAdapterV2.ts";
+
+const testLayer = Layer.mergeAll(
+ NodeServices.layer,
+ IdAllocator.layer,
+ ServerConfig.layerTest(process.cwd(), { prefix: "t3-muse-v2-adapter-" }).pipe(
+ Layer.provide(NodeServices.layer),
+ ),
+);
+const MUSE_PROVIDER = ProviderDriverKind.make("muse");
+const INSTANCE_ID = ProviderInstanceId.make("muse_work");
+const THREAD_ID = ThreadId.make("thread-muse-test");
+const MODEL = "muse-spark-1.3-contributor";
+const museSettings = Schema.decodeSync(MuseSettings)({ enabled: true });
+const runtimePolicy = ProviderAdapterV2RuntimePolicy.make({
+ runtimeMode: "full-access",
+ interactionMode: "default",
+ cwd: null,
+});
+const modelSelection = (instanceId = INSTANCE_ID) => ({
+ instanceId,
+ model: MODEL,
+ options: [{ id: "reasoningEffort", value: "max" }],
+});
+
+interface NativeCall {
+ readonly method: string;
+ readonly params: Record;
+ readonly commandId?: string;
+}
+
+function pendingPromise() {
+ let resolve!: (value: A) => void;
+ let reject!: (reason: unknown) => void;
+ const promise = new Promise((done, fail) => {
+ resolve = done;
+ reject = fail;
+ });
+ return { promise, resolve, reject };
+}
+
+/** SDK-shaped transport fake: registration deliberately returns void, as the SDK does. */
+const makeFakeMuse = Effect.fnUntraced(function* (idPrefix = "native") {
+ const requests = yield* Queue.unbounded();
+ const calls: NativeCall[] = [];
+ const closed = pendingPromise();
+ const exited = pendingPromise>();
+ let notify: Parameters[0] = () => {};
+ let sequence = 0;
+ let sessionId = "";
+ let closeCount = 0;
+ let closeGate: Promise | undefined;
+ let history: MuseItem[] = [];
+ const responses = new Map<
+ string,
+ Array> | Record | Error>
+ >();
+ const respond = async (call: NativeCall): Promise> => {
+ calls.push(call);
+ Queue.offerUnsafe(requests, call);
+ if (["session/start", "session/resume", "session/read"].includes(call.method)) {
+ sessionId = String(call.params.sessionId);
+ }
+ const queued = responses.get(call.method)?.shift();
+ if (queued instanceof Error) throw queued;
+ if (queued) return queued;
+ switch (call.method) {
+ case "session/start":
+ case "session/resume":
+ case "session/read":
+ sessionId = String(call.params.sessionId);
+ return {
+ session: { sessionId, modelId: MODEL, activeTurnId: null },
+ history: { items: history },
+ };
+ case "turn/start":
+ return { turnId: call.commandId };
+ case "turn/steer":
+ return { turnId: call.params.expectedTurnId };
+ case "session/compact":
+ return { status: "accepted" };
+ default:
+ return {};
+ }
+ };
+ const host: MuseSdkHost = {
+ connection: {
+ mintCommandId: () => `${idPrefix}-${++sequence}`,
+ command: (method, params, options) =>
+ respond({
+ method,
+ params,
+ ...(options?.commandId ? { commandId: options.commandId } : {}),
+ }),
+ request: (method, params = {}) => respond({ method, params }),
+ onNotification: (handler) => {
+ notify = handler;
+ },
+ onProtocolError: () => {},
+ onServerRequest: () => {},
+ closed: closed.promise,
+ },
+ initializeResult: { grantedCapabilities: [] },
+ exited: exited.promise,
+ close: async () => {
+ closeCount += 1;
+ await closeGate;
+ closed.resolve();
+ exited.resolve({ code: 0, signal: null });
+ },
+ };
+ return {
+ host,
+ calls,
+ closeCount: () => closeCount,
+ holdClose: (gate: Promise) => {
+ closeGate = gate;
+ },
+ disconnect: () =>
+ Effect.sync(() => {
+ closed.resolve();
+ exited.resolve({ code: 1, signal: null });
+ }),
+ setHistory: (items: MuseItem[]) => {
+ history = items;
+ },
+ queueResponse: (
+ method: string,
+ result: Record | Promise> | Error,
+ ) => {
+ responses.set(method, [...(responses.get(method) ?? []), result]);
+ },
+ emit: (method: string, params: Record) =>
+ Effect.sync(() => {
+ notify({ jsonrpc: "2.0", method, params: { sessionId, ...params } });
+ }),
+ takeCall: Effect.fnUntraced(function* (method: string) {
+ while (true) {
+ const call = yield* Queue.take(requests);
+ if (call.method === method) return call;
+ }
+ }),
+ };
+});
+
+const makeHarness = Effect.fnUntraced(function* (
+ fake: Effect.Success>,
+ instanceId = INSTANCE_ID,
+ initialNativeThreadId?: string,
+ replacement?: Effect.Success>,
+ existingProviderThread?: OrchestrationV2ProviderThread,
+ policy = runtimePolicy,
+ overrides: Pick<
+ MuseAdapterV2Options,
+ "createHost" | "nativeEventLogger" | "modelCatalog" | "continuationRequests"
+ > = {},
+) {
+ let hostCount = 0;
+ const adapter = makeMuseAdapterV2({
+ instanceId,
+ settings: museSettings,
+ environment: { PATH: "/fake/bin" },
+ idAllocator: yield* IdAllocator.IdAllocatorV2,
+ serverConfig: yield* ServerConfig.ServerConfig,
+ fileSystem: yield* FileSystem.FileSystem,
+ createHost: async () => (hostCount++ === 0 ? fake.host : (replacement ?? fake).host),
+ ...overrides,
+ });
+ const runtime = yield* adapter.openSession({
+ threadId: THREAD_ID,
+ providerSessionId: ProviderSessionId.make(`session-${instanceId}`),
+ modelSelection: modelSelection(instanceId),
+ runtimePolicy: policy,
+ ...(initialNativeThreadId ? { initialNativeThreadId } : {}),
+ });
+ const emitted = yield* Queue.unbounded();
+ const allEvents: ProviderAdapterV2Event[] = [];
+ const eventsEnded = yield* Deferred.make>>();
+ yield* runtime.events.pipe(
+ Stream.runForEach((event) =>
+ Effect.gen(function* () {
+ allEvents.push(event);
+ yield* Queue.offer(emitted, event);
+ }),
+ ),
+ Effect.exit,
+ Effect.flatMap((exit) => Deferred.succeed(eventsEnded, exit)),
+ Effect.forkScoped,
+ );
+ const providerThread = yield* runtime.ensureThread({
+ threadId: THREAD_ID,
+ modelSelection: modelSelection(instanceId),
+ runtimePolicy: policy,
+ ...(existingProviderThread ? { existingProviderThread } : {}),
+ });
+ const takeEvent = Effect.fnUntraced(function* (
+ type: T,
+ predicate: (event: Extract) => boolean = () => true,
+ ) {
+ while (true) {
+ const event = yield* Queue.take(emitted);
+ if (event.type === type && predicate(event as Extract)) {
+ return event as Extract;
+ }
+ }
+ });
+ return { adapter, runtime, providerThread, takeEvent, allEvents, policy, eventsEnded };
+});
+
+const preallocatedProviderThread = Effect.fnUntraced(function* () {
+ const now = yield* DateTime.now;
+ return {
+ id: ProviderThreadId.make("preallocated-muse-thread"),
+ driver: MUSE_PROVIDER,
+ providerInstanceId: INSTANCE_ID,
+ providerSessionId: ProviderSessionId.make(`session-${INSTANCE_ID}`),
+ appThreadId: THREAD_ID,
+ ownerNodeId: null,
+ nativeThreadRef: null,
+ nativeConversationHeadRef: null,
+ status: "idle",
+ firstRunOrdinal: null,
+ lastRunOrdinal: null,
+ handoffIds: [],
+ forkedFrom: null,
+ createdAt: now,
+ updatedAt: now,
+ } satisfies OrchestrationV2ProviderThread;
+});
+
+const turnInput = Effect.fnUntraced(function* (
+ providerThread: OrchestrationV2ProviderThread,
+ runOrdinal = 1,
+ policy = runtimePolicy,
+): Effect.fn.Return {
+ const now = yield* DateTime.now;
+ const threadId = providerThread.appThreadId ?? THREAD_ID;
+ const selection = modelSelection(providerThread.providerInstanceId);
+ const appThread: OrchestrationV2AppThread = {
+ id: threadId,
+ projectId: ProjectId.make("project-muse-test"),
+ title: "Muse test",
+ createdBy: "user",
+ creationSource: "web",
+ providerInstanceId: providerThread.providerInstanceId,
+ modelSelection: selection,
+ runtimeMode: policy.runtimeMode,
+ interactionMode: policy.interactionMode,
+ branch: null,
+ worktreePath: null,
+ activeProviderThreadId: providerThread.id,
+ lineage: { parentThreadId: null, relationshipToParent: null, rootThreadId: threadId },
+ forkedFrom: null,
+ createdAt: now,
+ updatedAt: now,
+ archivedAt: null,
+ settledOverride: null,
+ settledAt: null,
+ lastVisitedAt: null,
+ deletedAt: null,
+ };
+ return {
+ appThread,
+ threadId,
+ runId: RunId.make(`run-${runOrdinal}`),
+ runOrdinal,
+ providerTurnOrdinal: runOrdinal,
+ attemptId: RunAttemptId.make(`attempt-${runOrdinal}`),
+ rootNodeId: NodeId.make(`root-${runOrdinal}`),
+ providerThread,
+ message: {
+ messageId: MessageId.make(`message-${runOrdinal}`),
+ text: "Hello Muse",
+ attachments: [],
+ createdBy: "user",
+ creationSource: "web",
+ },
+ modelSelection: selection,
+ runtimePolicy: policy,
+ };
+});
+
+const startConversation = Effect.fnUntraced(function* (
+ harness: Effect.Success>,
+ fake: Effect.Success>,
+ ordinal = 1,
+) {
+ yield* harness.runtime.startTurn(
+ yield* turnInput(harness.providerThread, ordinal, harness.policy),
+ );
+ const call = yield* fake.takeCall("turn/start");
+ const event = yield* harness.takeEvent(
+ "provider_turn.updated",
+ (event) => event.providerTurn.status === "running",
+ );
+ return { nativeId: call.commandId!, providerTurn: event.providerTurn };
+});
+
+const approval = (turnId: string) => ({
+ approvalId: "approval-1",
+ turnId,
+ currentRequirementId: { approvalId: "approval-1", sourceIndex: 0 },
+ availableChoices: [
+ { choiceId: "once", label: "Allow once", decision: "approved", scope: "once" },
+ { choiceId: "deny", label: "Deny", decision: "denied", scope: "once" },
+ ],
+ subject: { kind: "shell", command: "touch result.txt" },
+});
+
+describe("MuseAdapterV2", () => {
+ it.effect("connects the thread's MCP credential on native start and resume", () =>
+ Effect.gen(function* () {
+ yield* Effect.addFinalizer(() =>
+ Effect.sync(() => McpProviderSession.clearMcpProviderSession(THREAD_ID)),
+ );
+ McpProviderSession.setMcpProviderSession({
+ environmentId: EnvironmentId.make("test-environment"),
+ threadId: THREAD_ID,
+ providerSessionId: "test-session",
+ providerInstanceId: INSTANCE_ID,
+ endpoint: "http://127.0.0.1:43210/mcp",
+ authorizationHeader: "Bearer thread-scoped-test-token",
+ browserToolsAvailable: true,
+ });
+ for (const nativeId of [undefined, "saved-native-session"]) {
+ const fake = yield* makeFakeMuse();
+ fake.host.initializeResult.grantedCapabilities.push("sessionMcp");
+ yield* makeHarness(fake, INSTANCE_ID, nativeId);
+ const call = yield* fake.takeCall(nativeId ? "session/resume" : "session/start");
+ assert.deepStrictEqual(call.params.config, {
+ mcpServers: {
+ "t3-code": {
+ transport: "streamableHttp",
+ mode: "optional",
+ url: "http://127.0.0.1:43210/mcp",
+ headers: { Authorization: "Bearer thread-scoped-test-token" },
+ },
+ },
+ });
+ }
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("rejects a host without session MCP support before opening a native session", () =>
+ Effect.gen(function* () {
+ yield* Effect.addFinalizer(() =>
+ Effect.sync(() => McpProviderSession.clearMcpProviderSession(THREAD_ID)),
+ );
+ McpProviderSession.setMcpProviderSession({
+ environmentId: EnvironmentId.make("test-environment"),
+ threadId: THREAD_ID,
+ providerSessionId: "test-session",
+ providerInstanceId: INSTANCE_ID,
+ endpoint: "http://127.0.0.1:43210/mcp",
+ authorizationHeader: "Bearer thread-scoped-test-token",
+ browserToolsAvailable: false,
+ });
+ const fake = yield* makeFakeMuse();
+ const outcome = yield* makeHarness(fake).pipe(Effect.result);
+ assert.strictEqual(outcome._tag, "Failure");
+ assert.isFalse(fake.calls.some((call) => call.method === "session/start"));
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect(
+ "starts fresh after recovery clears a native ref instead of reusing the startup hint",
+ () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const cleared = yield* preallocatedProviderThread();
+ const harness = yield* makeHarness(
+ fake,
+ INSTANCE_ID,
+ "failed-old-session",
+ undefined,
+ cleared,
+ );
+ const started = yield* fake.takeCall("session/start");
+ assert.isFalse(fake.calls.some((call) => call.method === "session/resume"));
+ assert.notStrictEqual(started.params.sessionId, "failed-old-session");
+ assert.strictEqual(harness.providerThread.id, cleared.id);
+ yield* startConversation(harness, fake);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("retries a missing native session with a cleared ref on the same healthy host", () =>
+ Effect.gen(function* () {
+ for (const kind of ["sessionNotFound", "notFound"] as const) {
+ const fake = yield* makeFakeMuse();
+ const allocated = yield* preallocatedProviderThread();
+ const adapter = makeMuseAdapterV2({
+ instanceId: INSTANCE_ID,
+ settings: museSettings,
+ environment: { PATH: "/fake/bin" },
+ idAllocator: yield* IdAllocator.IdAllocatorV2,
+ serverConfig: yield* ServerConfig.ServerConfig,
+ fileSystem: yield* FileSystem.FileSystem,
+ createHost: async () => fake.host,
+ });
+ const runtime = yield* adapter.openSession({
+ threadId: THREAD_ID,
+ providerSessionId: ProviderSessionId.make(`missing-${kind}`),
+ modelSelection: modelSelection(),
+ runtimePolicy,
+ initialNativeThreadId: "missing-session",
+ });
+ fake.queueResponse(
+ "session/resume",
+ new MspError({ code: -32000, message: "Saved session is absent", data: { kind } }),
+ );
+ const failed = yield* runtime
+ .ensureThread({
+ threadId: THREAD_ID,
+ modelSelection: modelSelection(),
+ runtimePolicy,
+ existingProviderThread: {
+ ...allocated,
+ nativeThreadRef: {
+ driver: MUSE_PROVIDER,
+ nativeId: "missing-session",
+ strength: "strong",
+ },
+ },
+ })
+ .pipe(Effect.exit);
+ assert.strictEqual(failed._tag, "Failure");
+ assert.strictEqual(fake.closeCount(), 0);
+ const fresh = yield* runtime.ensureThread({
+ threadId: THREAD_ID,
+ modelSelection: modelSelection(),
+ runtimePolicy,
+ existingProviderThread: allocated,
+ });
+ assert.strictEqual(fresh.id, allocated.id);
+ assert.notStrictEqual(fresh.nativeThreadRef?.nativeId, "missing-session");
+ assert.strictEqual(fake.closeCount(), 0);
+ yield* runtime.startTurn(yield* turnInput(fresh));
+ const admitted = yield* fake.takeCall("turn/start");
+ assert.strictEqual(admitted.params.reasoningEffort, "max");
+ yield* fake.emit("turn/completed", { turnId: admitted.commandId, terminal: "completed" });
+ yield* Stream.runDrain(
+ runtime.events.pipe(Stream.takeUntil((event) => event.type === "turn.terminal")),
+ );
+ }
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("rejects cross-instance ensure requests without closing the current valid host", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const rejected = yield* harness.runtime
+ .ensureThread({
+ threadId: THREAD_ID,
+ modelSelection: modelSelection(),
+ runtimePolicy,
+ existingProviderThread: {
+ ...harness.providerThread,
+ providerInstanceId: ProviderInstanceId.make("other-account"),
+ },
+ })
+ .pipe(Effect.exit);
+ assert.strictEqual(rejected._tag, "Failure");
+ assert.strictEqual(fake.closeCount(), 0);
+ yield* startConversation(harness, fake);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("skips an unreadable usage notification without ending the turn", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("session/tokenUsage", { turnId: nativeId, usage: "not usage" });
+ yield* fake.emit("turn/completed", { turnId: nativeId, terminal: "completed" });
+ const terminal = yield* harness.takeEvent("turn.terminal");
+ assert.strictEqual(terminal.status, "completed");
+ assert.strictEqual(fake.closeCount(), 0);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("moves a resumed session on another model back to the catalog default", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ // The saved session last ran MODEL; the catalog's default is another model.
+ const harness = yield* makeHarness(
+ fake,
+ INSTANCE_ID,
+ "saved-session",
+ undefined,
+ undefined,
+ runtimePolicy,
+ {
+ modelCatalog: Effect.succeed([
+ {
+ slug: "account-default",
+ name: "Default",
+ isCustom: false,
+ isDefault: true,
+ capabilities: null,
+ },
+ { slug: MODEL, name: "Other", isCustom: false, isDefault: false, capabilities: null },
+ ]),
+ },
+ );
+ const input = yield* turnInput(harness.providerThread, 1);
+ const selection = { ...input.modelSelection, model: MUSE_DEFAULT_MODEL };
+ yield* harness.runtime.startTurn({
+ ...input,
+ modelSelection: selection,
+ appThread: { ...input.appThread, modelSelection: selection },
+ });
+ const setModel = yield* fake.takeCall("session/setModel");
+ assert.deepStrictEqual(setModel.params.model, {
+ modelId: "account-default",
+ providerId: "meta",
+ });
+ yield* fake.takeCall("turn/start");
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("settles partial messages and pending approvals before a provider failure", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("item/started", {
+ turnId: nativeId,
+ item: {
+ itemId: "partial",
+ turnId: nativeId,
+ kind: "agentMessage",
+ status: "inProgress",
+ revision: 1,
+ text: "Partial answer",
+ },
+ });
+ yield* fake.emit("approval/requested", approval(nativeId));
+ yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "pending",
+ );
+ yield* fake.emit("turn/completed", {
+ turnId: nativeId,
+ terminal: "failed",
+ error: { message: "Provider rejected this turn" },
+ });
+ const terminal = yield* harness.takeEvent("turn.terminal");
+ assert.strictEqual(terminal.status, "failed");
+ assert.strictEqual(terminal.threadDisposition, "reusable");
+ assert.isNotNull(terminal.failure);
+ assert.isTrue(
+ harness.allEvents.some(
+ (event) =>
+ event.type === "message.updated" &&
+ !event.message.streaming &&
+ event.message.text === "Partial answer",
+ ),
+ );
+ assert.isTrue(
+ harness.allEvents.some(
+ (event) =>
+ event.type === "runtime_request.updated" && event.runtimeRequest.status === "cancelled",
+ ),
+ );
+ yield* startConversation(harness, fake, 2);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("closes its SDK host exactly once when its session scope ends", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ yield* makeHarness(fake).pipe(Effect.scoped);
+ assert.strictEqual(fake.closeCount(), 1);
+ }).pipe(Effect.provide(testLayer)),
+ );
+
+ it.effect(
+ "closes a newly opened host when native session registration returns another identity",
+ () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ fake.queueResponse("session/start", {
+ session: { sessionId: "unexpected-session", modelId: MODEL, activeTurnId: null },
+ history: { items: [] },
+ });
+ const result = yield* makeHarness(fake).pipe(Effect.exit);
+ assert.strictEqual(result._tag, "Failure");
+ // A failed host closes in the background so the failure shows at once.
+ yield* Effect.promise(() => fake.host.exited);
+ assert.strictEqual(fake.closeCount(), 1);
+ assert.strictEqual(fake.calls.filter((call) => call.method === "turn/start").length, 0);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("settles an active turn once when both the connection and host exit unexpectedly", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("approval/requested", approval(nativeId));
+ yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "pending",
+ );
+ yield* fake.disconnect();
+ const terminal = yield* harness.takeEvent("turn.terminal");
+ assert.strictEqual(terminal.status, "failed");
+ assert.strictEqual(terminal.threadDisposition, "broken");
+ assert.isTrue(
+ harness.allEvents.some(
+ (event) =>
+ event.type === "runtime_request.updated" && event.runtimeRequest.status === "cancelled",
+ ),
+ );
+ const result = yield* harness.runtime
+ .startTurn(yield* turnInput(harness.providerThread, 2))
+ .pipe(Effect.exit);
+ assert.strictEqual(result._tag, "Failure");
+ assert.strictEqual(
+ harness.allEvents.filter((event) => event.type === "turn.terminal").length,
+ 1,
+ );
+ assert.strictEqual(fake.calls.filter((call) => call.method === "turn/start").length, 1);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("turns a delivery gap into a broken terminal and rejects subsequent work", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ yield* startConversation(harness, fake);
+ yield* fake.emit("view/gap", {});
+ const terminal = yield* harness.takeEvent("turn.terminal");
+ assert.strictEqual(terminal.status, "failed");
+ assert.strictEqual(terminal.threadDisposition, "broken");
+ yield* Effect.promise(() => fake.host.exited);
+ assert.strictEqual(fake.closeCount(), 1);
+ yield* Deferred.await(harness.eventsEnded);
+ const result = yield* harness.runtime
+ .startTurn(yield* turnInput(harness.providerThread, 2))
+ .pipe(Effect.exit);
+ assert.strictEqual(result._tag, "Failure");
+ assert.strictEqual(fake.calls.filter((call) => call.method === "turn/start").length, 1);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("uses the latest native approval requirement and waits for its resolution event", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("approval/requested", approval(nativeId));
+ const first = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "pending",
+ );
+ yield* fake.emit("approval/updated", {
+ ...approval(nativeId),
+ currentRequirementId: { approvalId: "approval-1", sourceIndex: 1 },
+ });
+ const refreshed = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "pending",
+ );
+ assert.strictEqual(refreshed.runtimeRequest.id, first.runtimeRequest.id);
+ yield* harness.runtime.respondToRuntimeRequest({
+ requestId: first.runtimeRequest.id,
+ decision: "accept",
+ });
+ const decision = yield* fake.takeCall("approval/decide");
+ assert.deepStrictEqual(decision.params.requirementId, {
+ approvalId: "approval-1",
+ sourceIndex: 1,
+ });
+ assert.strictEqual(decision.params.choiceId, "once");
+ assert.isFalse(
+ harness.allEvents.some(
+ (event) =>
+ event.type === "runtime_request.updated" && event.runtimeRequest.status === "resolved",
+ ),
+ );
+ yield* fake.emit("approval/resolved", { approvalId: "approval-1", turnId: nativeId });
+ const resolved = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "resolved",
+ );
+ assert.strictEqual(resolved.runtimeRequest.id, first.runtimeRequest.id);
+ const repeated = yield* harness.runtime
+ .respondToRuntimeRequest({ requestId: first.runtimeRequest.id, decision: "accept" })
+ .pipe(Effect.exit);
+ assert.strictEqual(repeated._tag, "Failure");
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("keeps the user's decision when Muse settles before acknowledging it", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("approval/requested", approval(nativeId));
+ const pending = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "pending",
+ );
+ const acknowledgement = pendingPromise>();
+ fake.queueResponse("approval/decide", acknowledgement.promise);
+ const responding = yield* harness.runtime
+ .respondToRuntimeRequest({ requestId: pending.runtimeRequest.id, decision: "decline" })
+ .pipe(Effect.forkScoped);
+ yield* fake.takeCall("approval/decide");
+ // Muse's native decision for this choice maps to decline too; "cancel" proves it was ours.
+ yield* fake.emit("approval/resolved", {
+ approvalId: "approval-1",
+ turnId: nativeId,
+ decision: "abort",
+ });
+ const resolved = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "resolved",
+ );
+ assert.strictEqual(resolved.runtimeRequest.decision, "decline");
+ acknowledgement.resolve({});
+ yield* Fiber.join(responding);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("lets a user turn take a held Muse report turn, approvals included", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const offers: Array = [];
+ const harness = yield* makeHarness(
+ fake,
+ INSTANCE_ID,
+ undefined,
+ undefined,
+ undefined,
+ runtimePolicy,
+ { continuationRequests: { offer: (request) => Effect.sync(() => offers.push(request)) } },
+ );
+ // A finished workflow's report turn starts while T3 runs nothing: it is held.
+ yield* fake.emit("turn/started", { turnId: "report-1" });
+ yield* Effect.yieldNow;
+ assert.lengthOf(offers, 1);
+ // The user sends a message first; Muse runs the report before it.
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("approval/requested", approval("report-1"));
+ const asked = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "pending",
+ );
+ yield* harness.runtime.respondToRuntimeRequest({
+ requestId: asked.runtimeRequest.id,
+ decision: "accept",
+ });
+ yield* fake.takeCall("approval/decide");
+ yield* fake.emit("approval/resolved", { approvalId: "approval-1", turnId: "report-1" });
+ yield* fake.emit("turn/completed", { turnId: "report-1", terminal: "completed" });
+ yield* fake.emit("turn/completed", { turnId: nativeId, terminal: "completed" });
+ const terminal = yield* harness.takeEvent("turn.terminal");
+ assert.strictEqual(terminal.status, "completed");
+ // The user turn took it, so the continuation is not dispatched.
+ const dispatched = yield* offers[0]!.dispatchIfCurrent!(Effect.succeed("run"));
+ assert.isTrue(Option.isNone(dispatched));
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("validates structured answers and preserves selected labels with a custom note", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ yield* fake.emit("userInput/requested", {
+ userInputId: "question-1",
+ turnId: nativeId,
+ questions: [
+ {
+ id: "approach",
+ header: "Approach",
+ question: "Which approach?",
+ options: [{ label: "Small" }, { label: "Large" }],
+ selection: { mode: "single" },
+ },
+ ],
+ });
+ const pending = yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.kind === "user_input",
+ );
+ const invalid = yield* harness.runtime
+ .respondToRuntimeRequest({
+ requestId: pending.runtimeRequest.id,
+ answers: { approach: ["Small", "Large"] },
+ })
+ .pipe(Effect.exit);
+ assert.strictEqual(invalid._tag, "Failure");
+ assert.isFalse(fake.calls.some((call) => call.method === "userInput/answer"));
+ yield* harness.runtime.respondToRuntimeRequest({
+ requestId: pending.runtimeRequest.id,
+ answers: { approach: ["Small", "Keep tests focused"] },
+ });
+ const response = yield* fake.takeCall("userInput/answer");
+ assert.deepStrictEqual(response.params.answers, [
+ { questionId: "approach", selectedLabel: "Small", note: "Keep tests focused" },
+ ]);
+ yield* fake.emit("userInput/settled", {
+ userInputId: "question-1",
+ turnId: nativeId,
+ answers: response.params.answers,
+ });
+ yield* harness.takeEvent(
+ "runtime_request.updated",
+ (event) => event.runtimeRequest.status === "resolved",
+ );
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("steers only the active native turn and waits for confirmed interruption", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const turn = yield* startConversation(harness, fake);
+ const input = yield* turnInput(harness.providerThread);
+ const invalid = yield* harness.runtime.steerTurn!({
+ threadId: THREAD_ID,
+ runId: input.runId,
+ providerThread: harness.providerThread,
+ providerTurnId: ProviderTurnId.make("unrelated-turn"),
+ message: input.message,
+ }).pipe(Effect.exit);
+ assert.strictEqual(invalid._tag, "Failure");
+ assert.isFalse(fake.calls.some((call) => call.method === "turn/steer"));
+ yield* harness.runtime.steerTurn!({
+ threadId: THREAD_ID,
+ runId: input.runId,
+ providerThread: harness.providerThread,
+ providerTurnId: turn.providerTurn.id,
+ message: { ...input.message, text: "Focus on the parser" },
+ });
+ assert.strictEqual((yield* fake.takeCall("turn/steer")).params.expectedTurnId, turn.nativeId);
+ const interrupt = yield* harness.runtime
+ .interruptTurn({
+ providerThread: harness.providerThread,
+ providerTurnId: turn.providerTurn.id,
+ })
+ .pipe(Effect.forkScoped);
+ assert.strictEqual((yield* fake.takeCall("turn/interrupt")).params.turnId, turn.nativeId);
+ yield* fake.emit("turn/completed", { turnId: turn.nativeId, terminal: "cancelled" });
+ yield* Fiber.join(interrupt);
+ assert.strictEqual((yield* harness.takeEvent("turn.terminal")).status, "interrupted");
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("resumes the requested native session and reads the same session snapshot", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const nativeItem: MuseItem = {
+ itemId: "prior-message",
+ turnId: "prior-turn",
+ kind: "agentMessage",
+ status: "completed",
+ revision: 1,
+ text: "Previous answer",
+ };
+ fake.setHistory([nativeItem]);
+ const harness = yield* makeHarness(fake, INSTANCE_ID, "saved-session");
+ const resumed = yield* fake.takeCall("session/resume");
+ assert.strictEqual(resumed.params.sessionId, "saved-session");
+ assert.strictEqual(resumed.params.excludeItems, true);
+ assert.isFalse(fake.calls.some((call) => call.method === "session/start"));
+ assert.strictEqual(harness.providerThread.nativeThreadRef?.nativeId, "saved-session");
+ const snapshot = yield* harness.runtime.readThreadSnapshot!({
+ providerThread: harness.providerThread,
+ });
+ assert.strictEqual(snapshot.providerThread.nativeThreadRef?.nativeId, "saved-session");
+ assert.deepStrictEqual(snapshot.providerPayload, [nativeItem]);
+ assert.strictEqual(snapshot.messages[0]?.text, "Previous answer");
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("serializes interruption behind pending turn admission without losing the target", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const admission = pendingPromise>();
+ fake.queueResponse("turn/start", admission.promise);
+ const starting = yield* harness.runtime
+ .startTurn(yield* turnInput(harness.providerThread))
+ .pipe(Effect.forkScoped);
+ const call = yield* fake.takeCall("turn/start");
+ const running = yield* harness.takeEvent(
+ "provider_turn.updated",
+ (event) => event.providerTurn.status === "running",
+ );
+ const stopping = yield* harness.runtime
+ .interruptTurn({
+ providerThread: harness.providerThread,
+ providerTurnId: running.providerTurn.id,
+ })
+ .pipe(Effect.forkScoped);
+ admission.resolve({ turnId: call.commandId });
+ yield* Fiber.join(starting);
+ assert.strictEqual((yield* fake.takeCall("turn/interrupt")).params.turnId, call.commandId);
+ yield* fake.emit("turn/completed", { turnId: call.commandId, terminal: "cancelled" });
+ yield* Fiber.join(stopping);
+ assert.strictEqual((yield* harness.takeEvent("turn.terminal")).status, "interrupted");
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("reports a no-op compaction as a visible failure and permits another turn", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ fake.queueResponse("session/compact", { status: "noop", reason: "no_compactable_history" });
+ yield* harness.runtime.compactThread!(yield* turnInput(harness.providerThread));
+ const terminal = yield* harness.takeEvent("turn.terminal");
+ assert.strictEqual(terminal.status, "failed");
+ assert.strictEqual(terminal.threadDisposition, "reusable");
+ yield* startConversation(harness, fake, 2);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+
+ it.effect("projects native todos with stable identity and removes cancelled steps", () =>
+ Effect.gen(function* () {
+ const fake = yield* makeFakeMuse();
+ const harness = yield* makeHarness(fake);
+ const { nativeId } = yield* startConversation(harness, fake);
+ // Neither the tool call that wrote the list nor Muse's per-step reminder
+ // child may show as a generic tool row.
+ yield* fake.emit("item/completed", {
+ turnId: nativeId,
+ item: {
+ itemId: "todo-tool",
+ turnId: nativeId,
+ kind: "toolCall",
+ tool: "write_todos",
+ revision: 1,
+ status: "completed",
+ },
+ });
+ yield* fake.emit("item/started", {
+ turnId: nativeId,
+ item: {
+ itemId: "reminder",
+ turnId: nativeId,
+ kind: "reminderChild",
+ revision: 1,
+ status: "inProgress",
+ fallbackText: "Reminder child session",
+ },
+ });
+ yield* fake.emit("session/todoListChanged", {
+ items: [
+ { text: " Investigate ", status: "completed" },
+ { text: "Fix", status: "inProgress" },
+ { text: "Discarded", status: "cancelled" },
+ { text: " ", status: "pending" },
+ ],
+ });
+ const first = yield* harness.takeEvent(
+ "turn_item.updated",
+ (event) => event.turnItem.type === "todo_list",
+ );
+ assert.strictEqual(first.turnItem.type, "todo_list");
+ if (first.turnItem.type !== "todo_list") return;
+ assert.deepStrictEqual(
+ first.turnItem.steps.map(({ text, status }) => ({ text, status })),
+ [
+ { text: "Investigate", status: "completed" },
+ { text: "Fix", status: "running" },
+ ],
+ );
+ const planId = first.turnItem.planId;
+ yield* fake.emit("session/todoListChanged", {
+ items: [
+ { text: "Investigate", status: "completed" },
+ { text: "Fix", status: "completed" },
+ ],
+ });
+ const next = yield* harness.takeEvent(
+ "turn_item.updated",
+ (event) => event.turnItem.type === "todo_list",
+ );
+ assert.strictEqual(next.turnItem.id, first.turnItem.id);
+ assert.strictEqual(next.turnItem.nodeId, first.turnItem.nodeId);
+ if (next.turnItem.type !== "todo_list") return;
+ assert.strictEqual(next.turnItem.planId, first.turnItem.planId);
+ assert.isTrue(
+ harness.allEvents.some(
+ (event) =>
+ event.type === "plan.updated" &&
+ event.plan.id === planId &&
+ event.plan.status === "completed",
+ ),
+ );
+ assert.isFalse(
+ harness.allEvents.some(
+ (event) => event.type === "turn_item.updated" && event.turnItem.type === "dynamic_tool",
+ ),
+ );
+ assert.isTrue((yield* harness.adapter.getCapabilities()).planning.emitsPlanUpdated);
+ assert.isTrue((yield* harness.adapter.getCapabilities()).planning.emitsTodoList);
+ }).pipe(Effect.scoped, Effect.provide(testLayer)),
+ );
+});
diff --git a/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.testkit.ts b/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.testkit.ts
new file mode 100644
index 0000000000000000000000000000000000000000..826179c918286c1c5e09940a6f45b443990167da
--- /dev/null
+++ b/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.testkit.ts
@@ -0,0 +1,496 @@
+/**
+ * Muse MSP replay: swaps the host factory `MuseAdapterV2` uses to launch
+ * `muse serve` for one that answers from a recorded transcript. The real
+ * adapter and the real `@muse-code/sdk` `Connection` run unchanged; only the
+ * stdio pipe underneath is replayed.
+ *
+ * Transcript entries are MSP JSON-RPC lines. `expect_outbound` is one line T3
+ * wrote to Muse's stdin and `emit_inbound` is one line Muse wrote to stdout.
+ * Every host begins with a synthetic `host_start` outbound record carrying its
+ * `muse serve` arguments; records of the Nth host (N > 1) carry an `@hN` label
+ * suffix. The SDK numbers its requests, so a recorded request id is rebound to
+ * the id the replaying connection sent. Command and session ids come from the
+ * SDK's minter, so replay mints the ids the recording minted, in order.
+ * `` in an outbound frame matches any value.
+ */
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { Connection, type DuplexTransport } from "@muse-code/sdk";
+import {
+ MuseSettings,
+ ProviderDriverKind,
+ ProviderInstanceId,
+ ProviderReplayEntry,
+ type ProviderReplayEntry as ProviderReplayEntryType,
+ type ProviderReplayTranscript,
+} from "@t3tools/contracts";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Layer from "effect/Layer";
+import * as Schema from "effect/Schema";
+
+import * as ServerConfig from "../../config.ts";
+import {
+ museInitializeParams,
+ museServeArgs,
+ type MuseSdkHost,
+ type MuseSdkHostOptions,
+} from "../../provider/museSdk.ts";
+import * as IdAllocator from "../IdAllocator.ts";
+import * as ProviderAdapterRegistry from "../ProviderAdapterRegistry.ts";
+import * as ProviderContinuationRequests from "../ProviderContinuationRequests.ts";
+import {
+ makeReplayServerConfig,
+ type OrchestratorV2ProviderReplayHarness,
+} from "../testkit/ProviderReplayHarness.ts";
+import { makeMuseAdapterV2 } from "./MuseAdapterV2.ts";
+
+export const MUSE_PROVIDER_KIND = "muse";
+export const MUSE_MSP_REPLAY_PROTOCOL = "muse.msp-jsonl";
+const MUSE_REPLAY_ANY = "";
+
+const MuseReplayTranscript = Schema.Struct({
+ provider: Schema.Literal(MUSE_PROVIDER_KIND),
+ protocol: Schema.Literal(MUSE_MSP_REPLAY_PROTOCOL),
+ version: Schema.String,
+ scenario: Schema.String,
+ metadata: Schema.Struct({
+ /** Ids each host's SDK minted, in order: session ids, then one per command. */
+ commandIds: Schema.Array(Schema.Array(Schema.String)),
+ }),
+ entries: Schema.Array(ProviderReplayEntry),
+});
+type MuseReplayTranscript = typeof MuseReplayTranscript.Type;
+const decodeMuseReplayTranscript = Schema.decodeUnknownEffect(MuseReplayTranscript);
+
+class MuseReplayTranscriptDecodeError extends Schema.TaggedError()(
+ "MuseReplayTranscriptDecodeError",
+ { scenario: Schema.optional(Schema.String), cause: Schema.Defect() },
+) {
+ override get message(): string {
+ return `Failed to decode Muse MSP replay transcript for scenario ${this.scenario ?? ""}.`;
+ }
+}
+
+class MuseReplayMismatchError extends Schema.TaggedError()(
+ "MuseReplayMismatchError",
+ {
+ scenario: Schema.String,
+ cursor: Schema.Number,
+ host: Schema.Number,
+ expected: Schema.Unknown,
+ actual: Schema.Unknown,
+ },
+) {
+ override get message(): string {
+ return `Muse replay frame mismatch at cursor ${this.cursor} from host ${this.host} in scenario ${this.scenario}.`;
+ }
+}
+
+class MuseReplayIncompleteError extends Schema.TaggedError()(
+ "MuseReplayIncompleteError",
+ {
+ scenario: Schema.String,
+ cursor: Schema.Number,
+ remaining: Schema.Number,
+ nextLabel: Schema.optional(Schema.String),
+ },
+) {
+ override get message(): string {
+ return `Muse replay ended with ${this.remaining} unconsumed entries at cursor ${this.cursor} (next ${this.nextLabel ?? ""}) in scenario ${this.scenario}.`;
+ }
+}
+
+function isRecord(value: unknown): value is Record {
+ return typeof value === "object" && value !== null && !Array.isArray(value);
+}
+
+function replayValueMatches(expected: unknown, actual: unknown): boolean {
+ if (expected === MUSE_REPLAY_ANY) return true;
+ if (Array.isArray(expected)) {
+ return (
+ Array.isArray(actual) &&
+ expected.length === actual.length &&
+ expected.every((entry, index) => replayValueMatches(entry, actual[index]))
+ );
+ }
+ if (isRecord(expected)) {
+ if (!isRecord(actual)) return false;
+ const keys = new Set([...Object.keys(expected), ...Object.keys(actual)]);
+ return [...keys].every((key) => replayValueMatches(expected[key], actual[key]));
+ }
+ return Object.is(expected, actual);
+}
+
+/** A client request: the SDK's own numbered id plus a method. */
+function clientRequestId(frame: unknown): number | undefined {
+ return isRecord(frame) && typeof frame.method === "string" && typeof frame.id === "number"
+ ? frame.id
+ : undefined;
+}
+
+function withRequestId(expected: unknown, actual: unknown): unknown {
+ const actualId = clientRequestId(actual);
+ return isRecord(expected) && clientRequestId(expected) !== undefined && actualId !== undefined
+ ? { ...expected, id: actualId }
+ : expected;
+}
+
+/** A write may not match past one of these: it would be a turn early. */
+function startsTurn(entry: ProviderReplayEntryType): boolean {
+ if (entry.type !== "expect_outbound" || !isRecord(entry.frame)) return false;
+ const method = entry.frame.method ?? entry.frame.type;
+ return method === "turn/start" || method === "session/compact" || method === "host_start";
+}
+
+function entryHost(entry: ProviderReplayEntryType): number {
+ const label = entry.type === "runtime_exit" ? undefined : entry.label;
+ const match = label === undefined ? null : /@h(\d+)$/u.exec(label);
+ return match === null ? 1 : Number(match[1]);
+}
+
+function entryLabel(entry: ProviderReplayEntryType | undefined): string | undefined {
+ if (entry === undefined) return undefined;
+ return entry.type === "runtime_exit" ? "runtime_exit" : (entry.label ?? entry.type);
+}
+
+/** `turn/start`, `response:turn/start`, `request:approval/request`, or `reply:approval/request`. */
+export function museRecordLabel(
+ frame: unknown,
+ direction: "expect_outbound" | "emit_inbound",
+ requestMethods: ReadonlyMap,
+ host: number,
+): string | undefined {
+ if (!isRecord(frame)) return undefined;
+ const method = typeof frame.method === "string" ? frame.method : undefined;
+ const base =
+ frame.type === "host_start"
+ ? "host_start"
+ : method !== undefined
+ ? direction === "emit_inbound" && "id" in frame
+ ? `request:${method}`
+ : method
+ : requestMethods.has(frame.id)
+ ? `${direction === "emit_inbound" ? "response" : "reply"}:${requestMethods.get(frame.id)}`
+ : undefined;
+ return base === undefined || host === 1 ? base : `${base}@h${host}`;
+}
+
+/** Async line source the SDK `Connection` reads, fed by the replay controller. */
+class LineQueue implements AsyncIterable {
+ private readonly lines: Array = [];
+ private waiting: ((result: IteratorResult) => void) | undefined;
+ private ended = false;
+
+ push(line: string): void {
+ if (this.ended) return;
+ const waiting = this.waiting;
+ if (waiting) {
+ this.waiting = undefined;
+ waiting({ value: line, done: false });
+ } else this.lines.push(line);
+ }
+
+ end(): void {
+ this.ended = true;
+ this.waiting?.({ value: undefined, done: true });
+ this.waiting = undefined;
+ }
+
+ [Symbol.asyncIterator](): AsyncIterator {
+ return {
+ next: () => {
+ const line = this.lines.shift();
+ if (line !== undefined) return Promise.resolve({ value: line, done: false });
+ if (this.ended) return Promise.resolve({ value: undefined, done: true });
+ return new Promise((resolve) => {
+ this.waiting = resolve;
+ });
+ },
+ };
+ }
+}
+
+interface MuseReplayHost {
+ readonly ordinal: number;
+ readonly incoming: LineQueue;
+ /** Recorded request id -> id the replaying connection sent in its place. */
+ readonly ids: Map;
+ readonly minted: Array;
+ readonly exited: Promise<{ readonly code: number | null; readonly signal: null }>;
+ readonly exit: () => void;
+ open: boolean;
+}
+
+/**
+ * Drives every Muse host of one scenario from a single ordered transcript.
+ * Outbound lines must match the recording; the inbound lines that follow them
+ * go to the host that produced them. A write that matches a later outbound
+ * record of the same turn is held until the transcript reaches it, because
+ * independent adapter fibers can reach stdin in a different order than
+ * recorded. A write that matches nothing before the next turn fails at once.
+ */
+class MuseReplayController {
+ private cursor = 0;
+ private failure: unknown = null;
+ private readonly consumed = new Set();
+ private readonly held: Array<{ readonly host: MuseReplayHost; readonly actual: unknown }> = [];
+ private readonly hosts: Array = [];
+ private readonly transcript: MuseReplayTranscript;
+
+ constructor(transcript: MuseReplayTranscript) {
+ this.transcript = transcript;
+ }
+
+ spawn(args: ReadonlyArray): MuseReplayHost {
+ let exit = () => {};
+ const exited = new Promise<{ readonly code: number | null; readonly signal: null }>(
+ (resolve) => {
+ exit = () => resolve({ code: 0, signal: null });
+ },
+ );
+ const host: MuseReplayHost = {
+ ordinal: this.hosts.length + 1,
+ incoming: new LineQueue(),
+ ids: new Map(),
+ minted: [...(this.transcript.metadata.commandIds[this.hosts.length] ?? [])],
+ exited,
+ exit,
+ open: true,
+ };
+ this.hosts.push(host);
+ this.receive(host, { type: "host_start", args: [...args] });
+ return host;
+ }
+
+ mint(host: MuseReplayHost): string {
+ const id = host.minted.shift();
+ if (id === undefined) {
+ throw new Error(`Muse replay host ${host.ordinal} minted more ids than were recorded.`);
+ }
+ return id;
+ }
+
+ receive(host: MuseReplayHost, actual: unknown): void {
+ if (this.failure !== null) return;
+ const entries = this.transcript.entries;
+ let possible = false;
+ for (let index = this.cursor; index < entries.length && !possible; index += 1) {
+ const entry = entries[index]!;
+ const pending = entry.type === "expect_outbound" && !this.consumed.has(index);
+ possible =
+ pending &&
+ entryHost(entry) === host.ordinal &&
+ replayValueMatches(withRequestId(entry.frame, actual), actual);
+ if (!possible && pending && startsTurn(entry)) break;
+ }
+ if (!possible) {
+ this.fail(
+ new MuseReplayMismatchError({
+ scenario: this.transcript.scenario,
+ cursor: this.cursor,
+ host: host.ordinal,
+ expected: entries[this.cursor] ?? null,
+ actual,
+ }),
+ );
+ return;
+ }
+ this.held.push({ host, actual });
+ this.advance();
+ }
+
+ close(host: MuseReplayHost): void {
+ host.open = false;
+ host.incoming.end();
+ host.exit();
+ }
+
+ assertComplete(): void {
+ if (this.failure !== null) throw this.failure;
+ if (this.cursor !== this.transcript.entries.length || this.held.length > 0) {
+ const nextLabel = entryLabel(this.transcript.entries[this.cursor]);
+ throw new MuseReplayIncompleteError({
+ scenario: this.transcript.scenario,
+ cursor: this.cursor,
+ remaining: this.transcript.entries.length - this.cursor,
+ ...(nextLabel === undefined ? {} : { nextLabel }),
+ });
+ }
+ }
+
+ private advance(): void {
+ let progressed = true;
+ while (progressed && this.failure === null) {
+ progressed = this.drainInbound();
+ for (const [heldIndex, write] of this.held.entries()) {
+ if (this.consumePending(write.host, write.actual)) {
+ this.held.splice(heldIndex, 1);
+ progressed = true;
+ break;
+ }
+ }
+ }
+ }
+
+ private consumePending(host: MuseReplayHost, actual: unknown): boolean {
+ const entries = this.transcript.entries;
+ for (let index = this.cursor; index < entries.length; index += 1) {
+ const entry = entries[index]!;
+ if (entry.type !== "expect_outbound") return false;
+ if (this.consumed.has(index) || entryHost(entry) !== host.ordinal) continue;
+ if (!replayValueMatches(withRequestId(entry.frame, actual), actual)) continue;
+ const recordedId = clientRequestId(entry.frame);
+ const actualId = clientRequestId(actual);
+ if (recordedId !== undefined && actualId !== undefined) host.ids.set(recordedId, actualId);
+ this.consumed.add(index);
+ while (this.consumed.has(this.cursor)) this.cursor += 1;
+ return true;
+ }
+ return false;
+ }
+
+ private drainInbound(): boolean {
+ let emitted = false;
+ while (this.failure === null) {
+ const entry = this.transcript.entries[this.cursor];
+ if (entry?.type === "runtime_exit") {
+ // Muse exited on its own in the recording: end the newest host.
+ this.cursor += 1;
+ emitted = true;
+ const host = this.hosts.at(-1);
+ if (host !== undefined) this.close(host);
+ continue;
+ }
+ if (entry?.type !== "emit_inbound") return emitted;
+ const host = this.hosts[entryHost(entry) - 1];
+ if (host === undefined) return emitted;
+ this.cursor += 1;
+ emitted = true;
+ // Output a host wrote after T3 released it was never observed.
+ if (!host.open) continue;
+ const frame = entry.frame;
+ // Responses carry the client's request id; server requests carry their own.
+ const reboundId =
+ isRecord(frame) && frame.method === undefined && typeof frame.id === "number"
+ ? host.ids.get(frame.id)
+ : undefined;
+ const rebound =
+ isRecord(frame) && reboundId !== undefined ? { ...frame, id: reboundId } : frame;
+ host.incoming.push(`${JSON.stringify(rebound)}\n`);
+ }
+ return emitted;
+ }
+
+ private fail(cause: unknown): void {
+ if (this.failure !== null) return;
+ this.failure = cause;
+ for (const host of this.hosts) host.incoming.end();
+ }
+}
+
+/**
+ * Builds a `MuseSdkHost` over any line transport, doing the same `initialize`
+ * handshake the SDK's spawn path does. Replay and recording both use it.
+ */
+export async function connectMuseTransport(input: {
+ readonly transport: DuplexTransport;
+ readonly readOnly: boolean | undefined;
+ readonly mintCommandId?: () => string;
+ readonly exited: MuseSdkHost["exited"];
+ readonly close: () => Promise;
+}): Promise {
+ const connection = new Connection(
+ input.transport,
+ input.mintCommandId ? { mintCommandId: input.mintCommandId } : {},
+ );
+ const result = await connection.request("initialize", museInitializeParams(input.readOnly));
+ connection.notify("initialized");
+ const granted = result.grantedCapabilities;
+ return {
+ connection,
+ initializeResult: {
+ grantedCapabilities: Array.isArray(granted)
+ ? granted.filter((capability) => typeof capability === "string")
+ : [],
+ },
+ exited: input.exited,
+ close: input.close,
+ };
+}
+
+function makeReplayCreateHost(controller: MuseReplayController) {
+ return async (options: MuseSdkHostOptions): Promise => {
+ const host = controller.spawn(museServeArgs(options));
+ return connectMuseTransport({
+ transport: {
+ incoming: host.incoming,
+ write: async (line) => {
+ for (const part of line.split("\n")) {
+ if (part.trim()) controller.receive(host, JSON.parse(part));
+ }
+ },
+ close: () => controller.close(host),
+ },
+ readOnly: options.readOnly,
+ mintCommandId: () => controller.mint(host),
+ exited: host.exited,
+ close: async () => controller.close(host),
+ });
+ };
+}
+
+const DEFAULT_MUSE_SETTINGS = Schema.decodeUnknownSync(MuseSettings)({ enabled: true });
+
+/** Registry with the real Muse adapter on the given host factory. */
+export function layer(input: {
+ readonly scenario: string;
+ readonly createHost: NonNullable[0]["createHost"]>;
+ /** Replay needs none; a live recording passes the host environment. */
+ readonly environment?: NodeJS.ProcessEnv;
+}) {
+ const layerServerConfig = Layer.effect(
+ ServerConfig.ServerConfig,
+ makeReplayServerConfig(`muse-${input.scenario}`).pipe(Effect.orDie),
+ ).pipe(Layer.provide(NodeServices.layer));
+ return ProviderAdapterRegistry.layerFromAdaptersEffect(
+ Effect.gen(function* () {
+ return [
+ makeMuseAdapterV2({
+ instanceId: ProviderInstanceId.make(MUSE_PROVIDER_KIND),
+ settings: DEFAULT_MUSE_SETTINGS,
+ environment: input.environment ?? {},
+ idAllocator: yield* IdAllocator.IdAllocatorV2,
+ serverConfig: yield* ServerConfig.ServerConfig,
+ fileSystem: yield* FileSystem.FileSystem,
+ createHost: input.createHost,
+ // Same queue the continuation worker drains when the fixture runs it.
+ continuationRequests: yield* ProviderContinuationRequests.ProviderContinuationRequests,
+ }),
+ ];
+ }),
+ ).pipe(Layer.provide(Layer.mergeAll(layerServerConfig, NodeServices.layer, IdAllocator.layer)));
+}
+
+export const MuseOrchestratorReplayHarness: OrchestratorV2ProviderReplayHarness<
+ MuseReplayTranscript,
+ MuseReplayTranscriptDecodeError
+> = {
+ driver: ProviderDriverKind.make(MUSE_PROVIDER_KIND),
+ decodeTranscript: (transcript: ProviderReplayTranscript) =>
+ decodeMuseReplayTranscript(transcript).pipe(
+ Effect.mapError(
+ (cause) => new MuseReplayTranscriptDecodeError({ scenario: transcript.scenario, cause }),
+ ),
+ ),
+ makeProviderAdapterRegistryLayer: (transcript) =>
+ Layer.unwrap(
+ Effect.gen(function* () {
+ const controller = new MuseReplayController(transcript);
+ yield* Effect.addFinalizer(() => Effect.sync(() => controller.assertComplete()));
+ return layer({
+ scenario: transcript.scenario,
+ createHost: makeReplayCreateHost(controller),
+ });
+ }),
+ ),
+};
diff --git a/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.ts b/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.ts
new file mode 100644
index 0000000000000000000000000000000000000000..406ea9cd59ca35e1fb1a3530db7b6e6744f60794
--- /dev/null
+++ b/apps/server/src/orchestration-v2/Adapters/MuseAdapterV2.ts
@@ -0,0 +1,1991 @@
+import { MspError, type SendUserTurnOptions } from "@muse-code/sdk";
+import {
+ MUSE_DEFAULT_MODEL,
+ type MuseSettings,
+ ProviderDriverKind,
+ type ModelSelection,
+ type OrchestrationV2ConversationMessage,
+ type OrchestrationV2ExecutionNode,
+ type OrchestrationV2ProviderCapabilities,
+ type OrchestrationV2ProviderSession,
+ type OrchestrationV2ProviderThread,
+ type OrchestrationV2ProviderTurn,
+ type OrchestrationV2RuntimeRequest,
+ type OrchestrationV2Subagent,
+ type OrchestrationV2TurnItemStatus,
+ type NodeId,
+ type OrchestrationV2TurnItem,
+ type ProviderInstanceId,
+ type PlanId,
+ type OrchestrationV2PlanStep,
+ type RuntimeRequestId,
+ type ServerProviderModel,
+} from "@t3tools/contracts";
+import { getModelSelectionStringOptionValue } from "@t3tools/shared/model";
+import * as Cause from "effect/Cause";
+import * as DateTime from "effect/DateTime";
+import * as Deferred from "effect/Deferred";
+import * as Effect from "effect/Effect";
+import * as Option from "effect/Option";
+import * as FileSystem from "effect/FileSystem";
+import * as Queue from "effect/Queue";
+import * as Schema from "effect/Schema";
+import * as Semaphore from "effect/Semaphore";
+import * as Scope from "effect/Scope";
+import * as Stream from "effect/Stream";
+
+import { resolveAttachmentPath } from "../../attachmentStore.ts";
+import * as ServerConfig from "../../config.ts";
+import * as McpProviderSession from "../../mcp/McpProviderSession.ts";
+import { buildRuntimeInstructions } from "../../provider/RuntimeInstructions.ts";
+import {
+ museModelCapabilities,
+ resolveMuseReasoningEffort,
+} from "../../provider/museModelCatalog.ts";
+import {
+ MuseApproval,
+ MuseCompactResult,
+ MuseContextUsage,
+ MuseDelta,
+ MuseItemEvent,
+ MuseSessionResult,
+ MuseTokenUsageEvent,
+ MuseTodoList,
+ MuseTurnRetryScheduled,
+ MuseTurnCompleted,
+ MuseTurnStartResult,
+ MuseUserInput,
+ museApprovalChoices,
+ museApprovalDecision,
+ museApprovalOptions,
+ type MuseItem,
+} from "../../provider/museProtocol.ts";
+import {
+ createMuseSdkHostEffect,
+ museApprovalMode,
+ type createMuseSdkHost,
+ type MuseSdkHost,
+} from "../../provider/museSdk.ts";
+import type { EventNdjsonLogger } from "../../provider/EventNdjsonLogger.ts";
+import {
+ providerMessageTextWithAttachmentPaths,
+ isProviderNativeImageAttachment,
+} from "../AttachmentPrompt.ts";
+import * as IdAllocator from "../IdAllocator.ts";
+import {
+ ProviderAdapterEnsureThreadError,
+ ProviderAdapterForkThreadError,
+ ProviderAdapterInterruptError,
+ ProviderAdapterOpenSessionError,
+ ProviderAdapterProtocolError,
+ ProviderAdapterReadThreadSnapshotError,
+ ProviderAdapterResumeThreadError,
+ ProviderAdapterRollbackThreadError,
+ ProviderAdapterRuntimeRequestResponseError,
+ ProviderAdapterSteerRunError,
+ ProviderAdapterTurnStartError,
+ ProviderAdapterV2,
+ type ProviderAdapterV2Error,
+ type ProviderAdapterV2Event,
+ type ProviderAdapterV2EnsureThreadInput,
+ type ProviderAdapterV2OpenSessionInput,
+ type ProviderAdapterV2SessionRuntime,
+ type ProviderAdapterV2Shape,
+ type ProviderAdapterV2ThreadSnapshot,
+ type ProviderAdapterV2TurnInput,
+ type ProviderAdapterV2TurnMessage,
+} from "../ProviderAdapter.ts";
+import { backgroundWorkNotification, type BackgroundWorkReport } from "../Notification.ts";
+import type * as ProviderContinuationRequests from "../ProviderContinuationRequests.ts";
+import { makeProviderFailure } from "../ProviderFailure.ts";
+import { turnScopedSelectionTransition } from "../ProviderSelectionTransition.ts";
+import { museItemStatus, museToolPresentation } from "./MuseItemPresentation.ts";
+
+const MUSE_PROVIDER = ProviderDriverKind.make("muse");
+const isOpenSessionError = Schema.is(ProviderAdapterOpenSessionError);
+const isProtocolError = Schema.is(ProviderAdapterProtocolError);
+
+const MuseProviderCapabilitiesV2 = {
+ runtimePolicy: { enforcement: "native" },
+ sessions: {
+ supportsMultipleProviderThreadsPerSession: false,
+ supportsModelSwitchInSession: true,
+ supportsProviderSwitchingViaHandoff: true,
+ supportsRuntimeModeSwitchInSession: false,
+ pendingRequestsSurviveRestart: false,
+ },
+ threads: {
+ canCreateEmptyThread: true,
+ canReadThreadSnapshot: true,
+ // Muse 1.2.1/1.3.0 reject tested completed-turn fork boundaries with InvalidCut.
+ // Public forks use portable context handoff until native boundaries are validated.
+ canRollbackThread: false,
+ canForkThread: false,
+ canForkFromTurn: false,
+ canForkFromSubagentThread: false,
+ exposesNativeThreadId: true,
+ },
+ turns: {
+ exposesNativeTurnId: true,
+ emitsTurnStarted: true,
+ emitsTurnCompleted: true,
+ supportsInterrupt: true,
+ supportsActiveSteering: true,
+ supportsSteeringByInterruptRestart: false,
+ supportsQueuedMessages: true,
+ terminalStatusQuality: "strong",
+ },
+ streaming: {
+ streamsAssistantText: true,
+ streamsReasoning: true,
+ streamsToolOutput: true,
+ streamsPlanText: false,
+ emitsMessageCompleted: true,
+ },
+ tools: {
+ exposesToolItemIds: true,
+ emitsToolStarted: true,
+ emitsToolCompleted: true,
+ emitsToolOutput: true,
+ supportsMcpTools: true,
+ supportsDynamicToolCallbacks: false,
+ },
+ approvals: {
+ supportsCommandApproval: true,
+ supportsFileReadApproval: true,
+ supportsFileChangeApproval: true,
+ supportsApplyPatchApproval: false,
+ approvalsHaveNativeRequestIds: true,
+ approvalCallbacksAreLiveOnly: true,
+ approvalsCanOriginateFromSubagents: false,
+ },
+ planning: {
+ emitsPlanUpdated: true,
+ emitsTodoList: true,
+ emitsProposedPlan: false,
+ supportsStructuredQuestions: true,
+ planDeltasHaveItemIds: false,
+ },
+ subagents: {
+ supportsSubagents: false,
+ exposesSubagentThreadIds: false,
+ emitsSubagentLifecycle: false,
+ canWaitForSubagents: false,
+ canCloseSubagents: false,
+ canForkSubagentThread: false,
+ },
+ context: {
+ acceptsSystemContext: false,
+ acceptsDeveloperContext: false,
+ acceptsSyntheticUserContext: true,
+ canGenerateSummaries: false,
+ canConsumeHandoffSummaries: true,
+ supportsDeltaHandoff: true,
+ supportsFullThreadHandoff: true,
+ maxRecommendedHandoffChars: null,
+ },
+ checkpointing: {
+ appCanCheckpointFilesystem: true,
+ supportsNestedCheckpointScopes: false,
+ providerCanRollbackConversation: false,
+ providerRollbackReturnsSnapshot: false,
+ providerCanReadConversationSnapshot: true,
+ },
+ identity: {
+ nativeThreadIds: "strong",
+ nativeTurnIds: "strong",
+ nativeItemIds: "strong",
+ nativeRequestIds: "strong",
+ },
+} satisfies OrchestrationV2ProviderCapabilities;
+
+export interface MuseAdapterV2Options {
+ readonly instanceId: ProviderInstanceId;
+ readonly settings: MuseSettings;
+ readonly environment: NodeJS.ProcessEnv;
+ readonly idAllocator: IdAllocator.IdAllocatorV2["Service"];
+ readonly serverConfig: ServerConfig.ServerConfig["Service"];
+ readonly fileSystem: FileSystem.FileSystem;
+ readonly modelCatalog?: Effect.Effect>;
+ readonly createHost?: typeof createMuseSdkHost;
+ readonly requestTimeoutMs?: number;
+ readonly nativeEventLogger?: EventNdjsonLogger;
+ /** Where a turn Muse starts on its own (a finished workflow's report) asks for its run. */
+ readonly continuationRequests?: {
+ readonly offer: (
+ request: ProviderContinuationRequests.ProviderContinuationRequest,
+ ) => Effect.Effect;
+ };
+}
+
+interface ActiveTurn {
+ readonly input: ProviderAdapterV2TurnInput;
+ providerTurn: OrchestrationV2ProviderTurn;
+ readonly nativeId: string;
+ /** Turns Muse started on its own while this run was active, which this run shows. */
+ readonly joined: Set;
+ readonly items: Map;
+ readonly ordinals: Map;
+ readonly started: Map;
+ readonly dirty: Set;
+ readonly settledRequests: Set;
+ readonly done: Deferred.Deferred;
+ todoPlanId?: PlanId;
+ nextOrdinal: number;
+ flushScheduled: boolean;
+ interruptRequested: boolean;
+ compact: boolean;
+}
+
+interface PendingRequest {
+ readonly native:
+ | { type: "approval"; value: MuseApproval }
+ | { type: "question"; value: MuseUserInput };
+ request: OrchestrationV2RuntimeRequest;
+ node: OrchestrationV2ExecutionNode;
+ item: OrchestrationV2TurnItem;
+ /** What T3 answered, recorded on the request once Muse confirms it. */
+ response?: Pick;
+}
+
+const nativeRef = (nativeId: string) => ({
+ driver: MUSE_PROVIDER,
+ nativeId,
+ strength: "strong" as const,
+});
+const recordSchema = Schema.Record(Schema.String, Schema.Unknown);
+// Notifications that only add detail. A malformed one is skipped instead of ending the session.
+const INFORMATIONAL_NOTIFICATIONS = new Set([
+ "session/contextUsage",
+ "session/tokenUsage",
+ "session/todoListChanged",
+ "turn/retryScheduled",
+]);
+// Tools whose results already show as their own rows: T3's todo list and question
+// rows, and the workflow item a `workflow` call launches.
+const TOOLS_WITH_NATIVE_ROWS = new Set(["write_todos", "request_user_input", "workflow"]);
+const responseAnswerSchema = Schema.Union([Schema.String, Schema.Array(Schema.String)]);
+
+/** One scoped Muse host owns one native session; the orchestrator owns app runs and queuing. */
+export function makeMuseAdapterV2(options: MuseAdapterV2Options): ProviderAdapterV2Shape {
+ const { idAllocator } = options;
+ const protocolError = (detail: string, payload?: unknown) =>
+ new ProviderAdapterProtocolError({
+ driver: MUSE_PROVIDER,
+ detail,
+ ...(payload === undefined ? {} : { payload }),
+ });
+ return ProviderAdapterV2.of({
+ instanceId: options.instanceId,
+ driver: MUSE_PROVIDER,
+ getCapabilities: () => Effect.succeed(MuseProviderCapabilitiesV2),
+ planSelectionTransition: () => Effect.succeed(turnScopedSelectionTransition()),
+ openSession: Effect.fn("MuseAdapterV2.openSession")(function* (
+ input: ProviderAdapterV2OpenSessionInput,
+ ) {
+ if (!options.settings.enabled) return yield* protocolError("Muse Code is disabled");
+ if (input.runtimePolicy.interactionMode === "plan")
+ return yield* protocolError("Muse Code does not support dedicated Plan mode");
+ const scope = yield* Effect.scope;
+ // Muse rejects non-canonical workspace roots (for example macOS /tmp) and
+ // reports canonical paths in approvals, so resolve symlinks once here.
+ const requestedCwd = input.runtimePolicy.cwd ?? options.serverConfig.cwd;
+ const cwd = yield* options.fileSystem
+ .realPath(requestedCwd)
+ .pipe(Effect.orElseSucceed(() => requestedCwd));
+ const now = yield* DateTime.now;
+ let session: OrchestrationV2ProviderSession = {
+ id: input.providerSessionId,
+ driver: MUSE_PROVIDER,
+ providerInstanceId: options.instanceId,
+ status: "ready",
+ cwd,
+ model: input.modelSelection.model,
+ capabilities: MuseProviderCapabilitiesV2,
+ createdAt: now,
+ updatedAt: now,
+ lastError: null,
+ };
+ const events = yield* Queue.unbounded<
+ ProviderAdapterV2Event,
+ ProviderAdapterV2Error | Cause.Done
+ >();
+ type Inbox =
+ | { type: "notification"; method: string; params: unknown; epoch: number }
+ | { type: "failure"; cause: unknown; epoch: number }
+ | { type: "flush"; turn: ActiveTurn };
+ const inbox = yield* Queue.unbounded();
+ const commands = yield* Semaphore.make(1);
+ const eventPermit = yield* Semaphore.make(1);
+ let host: MuseSdkHost;
+ let hostEpoch = 0;
+ let closed = false;
+ let broken = false;
+ let nativeSessionId: string | undefined;
+ let thread: OrchestrationV2ProviderThread | undefined;
+ let active: ActiveTurn | undefined;
+ // The last finished turn, so context usage reported after it still lands on it.
+ let lastProviderTurn: OrchestrationV2ProviderTurn | undefined;
+ const agentEndedAt = new Map();
+ // "default" is the catalog's default model, from the provider snapshot. Without
+ // one, Muse keeps whatever model the session already runs.
+ const resolveModel = Effect.fnUntraced(function* (selection: ModelSelection) {
+ if (selection.model !== MUSE_DEFAULT_MODEL) return selection.model;
+ const catalog = options.modelCatalog ? yield* options.modelCatalog : [];
+ return catalog.find((model) => model.isDefault && !model.isCustom)?.slug;
+ });
+ const pending = new Map();
+ const seenTerminals = new Set();
+ // Workflows and subagents that outlive their turn, by item id, with the turn that owns them.
+ const observedChildren = new Map();
+ // Background work that finished since the last turn, reported to the turn Muse starts for it.
+ const finishedBackground: Array = [];
+ // A turn Muse started on its own, held until the continuation run T3 opens for it takes it.
+ let wake:
+ | { readonly nativeId: string; readonly events: Array<[string, unknown]> }
+ | undefined;
+ const emit = (event: ProviderAdapterV2Event) =>
+ Queue.offer(events, event).pipe(Effect.asVoid);
+ const decode = (schema: Schema.Codec, data: unknown) =>
+ Schema.decodeUnknownEffect(schema)(data).pipe(
+ Effect.mapError((cause) => protocolError("Invalid Muse protocol response", cause)),
+ );
+ const request = (
+ method: string,
+ params: Record,
+ command = true,
+ commandId?: string,
+ ) =>
+ Effect.tryPromise({
+ try: () =>
+ command
+ ? host.connection.command(
+ method,
+ { ...(nativeSessionId ? { sessionId: nativeSessionId } : {}), ...params },
+ {
+ ...(method === "turn/start" ? {} : { maxAttempts: 1 }),
+ ...(commandId ? { commandId } : {}),
+ },
+ )
+ : host.connection.request(method, {
+ ...(nativeSessionId ? { sessionId: nativeSessionId } : {}),
+ ...params,
+ }),
+ catch: (cause) =>
+ protocolError(
+ cause instanceof Error && cause.message
+ ? `Muse ${method} failed: ${cause.message}`
+ : `Muse ${method} failed`,
+ cause,
+ ),
+ }).pipe(
+ Effect.timeout(options.requestTimeoutMs ?? 30_000),
+ Effect.catchTags({
+ TimeoutError: (cause) =>
+ Effect.gen(function* () {
+ yield* eventPermit.withPermits(1)(failHost(cause));
+ return yield* protocolError(`Muse ${method} timed out; its host was closed`, cause);
+ }),
+ }),
+ );
+ const updateSession = Effect.fnUntraced(function* (
+ status: OrchestrationV2ProviderSession["status"],
+ lastError: string | null = null,
+ ) {
+ session = { ...session, status, lastError, updatedAt: yield* DateTime.now };
+ yield* emit({
+ type: "provider_session.updated",
+ driver: MUSE_PROVIDER,
+ providerSession: session,
+ });
+ });
+ const updateThread = Effect.fnUntraced(function* (
+ patch: Partial,
+ ) {
+ if (!thread) return;
+ thread = { ...thread, ...patch, updatedAt: yield* DateTime.now };
+ yield* emit({
+ type: "provider_thread.updated",
+ driver: MUSE_PROVIDER,
+ providerThread: thread,
+ });
+ });
+ const itemIdentity = (turn: ActiveTurn, nativeId: string) =>
+ `${options.instanceId}:${turn.input.providerThread.id}:${turn.nativeId}:${nativeId}`;
+ const baseItem = (turn: ActiveTurn, nativeId: string, time: DateTime.Utc) => {
+ if (!turn.ordinals.has(nativeId)) turn.ordinals.set(nativeId, turn.nextOrdinal++);
+ if (!turn.started.has(nativeId)) turn.started.set(nativeId, time);
+ const identity = itemIdentity(turn, nativeId);
+ return {
+ id: idAllocator.derive.turnItemFromProviderItem({
+ driver: MUSE_PROVIDER,
+ nativeItemId: identity,
+ }),
+ nodeId: idAllocator.derive.nodeFromProviderItem({
+ driver: MUSE_PROVIDER,
+ nativeItemId: identity,
+ }),
+ threadId: turn.input.threadId,
+ runId: turn.input.runId,
+ providerThreadId: turn.input.providerThread.id,
+ providerTurnId: turn.providerTurn.id,
+ nativeItemRef: nativeRef(nativeId),
+ parentItemId: null,
+ ordinal: turn.ordinals.get(nativeId)!,
+ startedAt: turn.started.get(nativeId)!,
+ updatedAt: time,
+ };
+ };
+ /** Lists running workflows and subagents on the thread, so it shows it still waits on them. */
+ const syncBackground = Effect.fnUntraced(function* () {
+ yield* updateThread({
+ pendingBackgroundTasks: [...observedChildren].flatMap(([itemId, owner]) => {
+ const item = owner.items.get(itemId);
+ const description = item?.objective ?? item?.entryId ?? item?.fallbackText;
+ return [
+ {
+ taskId: itemId,
+ kind:
+ item?.kind === "subagent" ? ("subagent" as const) : ("background_task" as const),
+ ...(description ? { description } : {}),
+ },
+ ];
+ }),
+ });
+ });
+ const publishItem = Effect.fnUntraced(function* (
+ turn: ActiveTurn,
+ item: MuseItem,
+ terminal?: OrchestrationV2TurnItem["status"],
+ ) {
+ // Muse's skill-reminder child runs on every model step; it is housekeeping, not work.
+ if (item.kind === "userMessage" || item.kind === "reminderChild") return;
+ // A failed call keeps its row: it may have no native row to show its error.
+ if (
+ item.kind === "toolCall" &&
+ item.tool &&
+ TOOLS_WITH_NATIVE_ROWS.has(item.tool) &&
+ item.status !== "failed"
+ )
+ return;
+ const time = yield* DateTime.now;
+ const status = terminal ?? museItemStatus(item);
+ if (item.kind === "subagent" || item.kind === "workflow") {
+ const wasRunning = observedChildren.has(item.itemId);
+ if (status === "running") observedChildren.set(item.itemId, turn);
+ else if (observedChildren.delete(item.itemId) && active !== turn)
+ finishedBackground.push({
+ kind: item.kind === "subagent" ? "subagent" : "background_task",
+ label: item.objective ?? item.entryId ?? item.fallbackText,
+ outcome:
+ status === "completed"
+ ? "completed"
+ : status === "cancelled"
+ ? "cancelled"
+ : "failed",
+ });
+ if (wasRunning !== observedChildren.has(item.itemId)) yield* syncBackground();
+ }
+ const streaming = status === "running";
+ const base = {
+ ...baseItem(turn, item.itemId, time),
+ status,
+ completedAt: streaming ? null : time,
+ title: item.tool ?? null,
+ };
+ const text = item.text ?? item.summary?.join("\n") ?? item.fallbackText ?? "";
+ let turnItem: OrchestrationV2TurnItem;
+ if (item.kind === "agentMessage") {
+ const messageId = idAllocator.derive.messageFromProviderItem({
+ driver: MUSE_PROVIDER,
+ nativeItemId: itemIdentity(turn, item.itemId),
+ });
+ const message: OrchestrationV2ConversationMessage = {
+ id: messageId,
+ threadId: turn.input.threadId,
+ runId: turn.input.runId,
+ nodeId: base.nodeId,
+ role: "assistant",
+ text,
+ attachments: [],
+ streaming,
+ createdBy: "agent",
+ creationSource: "provider",
+ createdAt: base.startedAt,
+ updatedAt: time,
+ };
+ yield* emit({ type: "message.updated", driver: MUSE_PROVIDER, message });
+ turnItem = { ...base, type: "assistant_message", messageId, text, streaming };
+ } else if (item.kind === "reasoning") {
+ turnItem = { ...base, type: "reasoning", text, streaming };
+ } else if (item.kind === "compaction") {
+ turnItem = {
+ ...base,
+ type: "compaction",
+ driver: MUSE_PROVIDER,
+ summary: text || item.reason,
+ };
+ } else {
+ turnItem = { ...base, ...museToolPresentation(item, status) };
+ }
+ yield* emit({
+ type: "node.updated",
+ driver: MUSE_PROVIDER,
+ node: {
+ id: base.nodeId,
+ threadId: base.threadId,
+ runId: base.runId,
+ parentNodeId: turn.input.rootNodeId,
+ rootNodeId: turn.input.rootNodeId,
+ kind:
+ item.kind === "agentMessage"
+ ? "assistant_message"
+ : item.kind === "reasoning"
+ ? "reasoning"
+ : "tool_call",
+ status,
+ countsForRun: false,
+ providerThreadId: base.providerThreadId,
+ providerTurnId: base.providerTurnId,
+ nativeItemRef: base.nativeItemRef,
+ runtimeRequestId: null,
+ checkpointScopeId: null,
+ startedAt: base.startedAt,
+ completedAt: base.completedAt,
+ },
+ });
+ yield* emit({ type: "turn_item.updated", driver: MUSE_PROVIDER, turnItem });
+ if (item.kind === "workflow") yield* publishWorkflowAgents(turn, item, base, status);
+ });
+ /**
+ * Shows each workflow child as a native subagent under the workflow row. Muse
+ * reports only their status, label and outcome, not their conversations, so
+ * they get no child thread.
+ */
+ const publishWorkflowAgents = Effect.fnUntraced(function* (
+ turn: ActiveTurn,
+ item: MuseItem,
+ workflow: { readonly id: OrchestrationV2TurnItem["id"]; readonly nodeId: NodeId },
+ workflowStatus: OrchestrationV2TurnItemStatus,
+ ) {
+ const latest = new Map((item.children ?? []).map((child) => [child.childId, child]));
+ for (const [index, child] of [...latest.values()].entries()) {
+ const time = yield* DateTime.now;
+ const base = baseItem(turn, `${item.itemId}:agent:${child.childId}`, time);
+ const status: OrchestrationV2TurnItemStatus =
+ child.terminal === "completed"
+ ? "completed"
+ : child.terminal === "cancelled"
+ ? "cancelled"
+ : child.terminal !== undefined
+ ? "failed"
+ : workflowStatus !== "running"
+ ? workflowStatus
+ : child.status === "scheduled"
+ ? "pending"
+ : "running";
+ const settled = status !== "running" && status !== "pending";
+ // Children are re-sent on every workflow change; keep each one's first end time.
+ const endKey = `${item.itemId}:${child.childId}:${child.attempt}`;
+ if (settled && !agentEndedAt.has(endKey)) agentEndedAt.set(endKey, time);
+ const title = child.label?.trim() || `Agent ${index + 1}`;
+ const result = child.failureReason ?? null;
+ const subagent: OrchestrationV2Subagent = {
+ id: base.nodeId,
+ threadId: base.threadId,
+ runId: base.runId,
+ parentNodeId: workflow.nodeId,
+ origin: "provider_native",
+ createdBy: "agent",
+ driver: MUSE_PROVIDER,
+ providerInstanceId: options.instanceId,
+ providerThreadId: base.providerThreadId,
+ childThreadId: null,
+ nativeTaskRef: nativeRef(child.childId),
+ prompt: title,
+ title,
+ model: null,
+ status,
+ result,
+ startedAt: base.startedAt,
+ completedAt: settled ? (agentEndedAt.get(endKey) ?? time) : null,
+ updatedAt: time,
+ };
+ yield* emit({ type: "subagent.updated", driver: MUSE_PROVIDER, subagent });
+ yield* emit({
+ type: "node.updated",
+ driver: MUSE_PROVIDER,
+ node: {
+ id: base.nodeId,
+ threadId: base.threadId,
+ runId: base.runId,
+ parentNodeId: workflow.nodeId,
+ rootNodeId: turn.input.rootNodeId,
+ kind: "subagent",
+ status,
+ countsForRun: false,
+ providerThreadId: base.providerThreadId,
+ providerTurnId: base.providerTurnId,
+ nativeItemRef: subagent.nativeTaskRef,
+ runtimeRequestId: null,
+ checkpointScopeId: null,
+ startedAt: base.startedAt,
+ completedAt: subagent.completedAt,
+ },
+ });
+ yield* emit({
+ type: "turn_item.updated",
+ driver: MUSE_PROVIDER,
+ turnItem: {
+ ...base,
+ nativeItemRef: subagent.nativeTaskRef,
+ parentItemId: workflow.id,
+ type: "subagent",
+ status,
+ title,
+ completedAt: subagent.completedAt,
+ subagentId: subagent.id,
+ origin: "provider_native",
+ driver: MUSE_PROVIDER,
+ providerInstanceId: options.instanceId,
+ childThreadId: null,
+ prompt: title,
+ result,
+ },
+ });
+ }
+ });
+ const settleObservedChildren = Effect.fnUntraced(function* (
+ status: "failed" | "cancelled" | "interrupted",
+ ) {
+ for (const [itemId, owner] of observedChildren) {
+ const item = owner.items.get(itemId);
+ if (item) yield* publishItem(owner, item, status);
+ }
+ observedChildren.clear();
+ if (thread?.pendingBackgroundTasks?.length) yield* syncBackground();
+ });
+ const resolvePending = Effect.fnUntraced(function* (
+ entry: PendingRequest,
+ status: "resolved" | "cancelled",
+ ) {
+ const time = yield* DateTime.now;
+ entry.request = {
+ ...entry.request,
+ ...(status === "resolved" ? entry.response : undefined),
+ status,
+ resolvedAt: time,
+ responseCapability: { type: "not_resumable", reason: "This Muse request has ended." },
+ };
+ entry.node = {
+ ...entry.node,
+ status: status === "resolved" ? "completed" : "cancelled",
+ completedAt: time,
+ };
+ entry.item = {
+ ...entry.item,
+ status: status === "resolved" ? "completed" : "cancelled",
+ completedAt: time,
+ updatedAt: time,
+ };
+ pending.delete(entry.request.id);
+ yield* emit({
+ type: "runtime_request.updated",
+ driver: MUSE_PROVIDER,
+ threadId: input.threadId,
+ runtimeRequest: entry.request,
+ });
+ yield* emit({ type: "node.updated", driver: MUSE_PROVIDER, node: entry.node });
+ yield* emit({ type: "turn_item.updated", driver: MUSE_PROVIDER, turnItem: entry.item });
+ });
+ const finish = Effect.fnUntraced(function* (
+ turn: ActiveTurn,
+ status: "completed" | "cancelled" | "interrupted" | "failed",
+ detail?: string,
+ disposition: "reusable" | "broken" = "reusable",
+ ) {
+ if (active !== turn || seenTerminals.has(turn.nativeId)) return;
+ seenTerminals.add(turn.nativeId);
+ const completedAt = yield* DateTime.now;
+ for (const item of turn.items.values()) {
+ if (
+ (item.kind === "subagent" || item.kind === "workflow") &&
+ item.status === "inProgress" &&
+ disposition === "reusable"
+ )
+ continue;
+ if (turn.dirty.has(item.itemId) || item.status === "inProgress")
+ yield* publishItem(turn, item, item.status === "inProgress" ? status : undefined);
+ }
+ turn.dirty.clear();
+ for (const entry of pending.values()) yield* resolvePending(entry, "cancelled");
+ turn.providerTurn = { ...turn.providerTurn, status, completedAt };
+ lastProviderTurn = turn.providerTurn;
+ yield* emit({
+ type: "provider_turn.updated",
+ driver: MUSE_PROVIDER,
+ threadId: turn.input.threadId,
+ providerTurn: turn.providerTurn,
+ });
+ yield* updateThread({
+ status: disposition === "broken" ? "error" : "idle",
+ ...(!turn.compact && status === "completed"
+ ? { nativeConversationHeadRef: nativeRef(turn.nativeId) }
+ : {}),
+ });
+ yield* updateSession(disposition === "broken" ? "error" : "ready", detail ?? null);
+ active = undefined;
+ if (status === "failed") {
+ const failure = makeProviderFailure({
+ class: disposition === "broken" ? "transport_error" : "provider_error",
+ message: detail ?? "Muse turn failed.",
+ });
+ const base = baseItem(turn, `failure:${turn.nativeId}`, completedAt);
+ yield* emit({
+ type: "turn_item.updated",
+ driver: MUSE_PROVIDER,
+ turnItem: {
+ ...base,
+ type: "error",
+ status: "failed",
+ title: null,
+ completedAt,
+ failure,
+ },
+ });
+ yield* emit({
+ type: "turn.terminal",
+ driver: MUSE_PROVIDER,
+ providerThreadId: turn.providerTurn.providerThreadId,
+ providerTurnId: turn.providerTurn.id,
+ runOrdinal: turn.input.runOrdinal,
+ status,
+ failure,
+ failureItemOrdinal: base.ordinal,
+ threadDisposition: disposition,
+ });
+ } else {
+ yield* emit({
+ type: "turn.terminal",
+ driver: MUSE_PROVIDER,
+ providerThreadId: turn.providerTurn.providerThreadId,
+ providerTurnId: turn.providerTurn.id,
+ runOrdinal: turn.input.runOrdinal,
+ status,
+ failure: null,
+ threadDisposition: disposition,
+ });
+ }
+ yield* Deferred.succeed(turn.done, undefined);
+ });
+ const failHost = Effect.fnUntraced(function* (cause: unknown) {
+ if (closed || broken) return;
+ broken = true;
+ const rootCause = Cause.isCause(cause) ? Cause.squash(cause) : cause;
+ const failure = isOpenSessionError(rootCause) ? rootCause.cause : rootCause;
+ const detail = isProtocolError(failure)
+ ? failure.detail
+ : failure instanceof Error
+ ? failure.message
+ : "Muse transport failed.";
+ if (active) yield* finish(active, "failed", detail, "broken");
+ else {
+ yield* updateThread({ status: "error" });
+ yield* updateSession("error", detail);
+ }
+ yield* settleObservedChildren("failed");
+ yield* Queue.fail(events, protocolError(detail, cause));
+ // Report the failure first; a hung host can take a while to close.
+ const failed = host;
+ yield* Effect.tryPromise(() => failed.close()).pipe(Effect.ignore, Effect.forkIn(scope));
+ });
+ const owns = (turn: ActiveTurn, turnId: string) =>
+ turnId === turn.nativeId || turn.joined.has(turnId);
+ const publishRequest = Effect.fnUntraced(function* (native: PendingRequest["native"]) {
+ const turn = active;
+ if (
+ !turn ||
+ native.value.sessionId !== nativeSessionId ||
+ (native.value.turnId && !owns(turn, native.value.turnId))
+ )
+ return;
+ const nativeId =
+ native.type === "approval" ? native.value.approvalId : native.value.userInputId;
+ if (turn.settledRequests.has(`${native.type}:${nativeId}`)) return;
+ const previous = [...pending.values()].find(
+ (entry) =>
+ entry.native.type === native.type &&
+ entry.request.nativeRequestRef?.nativeId === nativeId,
+ );
+ const requestId =
+ previous?.request.id ??
+ (yield* idAllocator.allocate
+ .runtimeRequest({
+ driver: MUSE_PROVIDER,
+ providerTurnId: turn.providerTurn.id,
+ nativeRequestId: nativeId,
+ })
+ .pipe(
+ Effect.mapError((cause) => protocolError("Cannot allocate Muse request", cause)),
+ ));
+ const time = yield* DateTime.now;
+ const nodeId = idAllocator.derive.approvalNode({ requestId });
+ const subject = native.type === "approval" ? native.value.subject : undefined;
+ const kind = !subject
+ ? "user_input"
+ : subject.kind === "shell"
+ ? "command"
+ : subject.kind !== "fileAccess"
+ ? "permission"
+ : subject.access === "read"
+ ? "file-read"
+ : "file-change";
+ const runtimeRequest: OrchestrationV2RuntimeRequest = {
+ id: requestId,
+ nodeId,
+ providerTurnId: turn.providerTurn.id,
+ nativeRequestRef: nativeRef(nativeId),
+ kind,
+ status: "pending",
+ responseCapability: { type: "live", providerSessionId: input.providerSessionId },
+ createdAt: previous?.request.createdAt ?? time,
+ resolvedAt: null,
+ };
+ const node: OrchestrationV2ExecutionNode = {
+ id: nodeId,
+ threadId: turn.input.threadId,
+ runId: turn.input.runId,
+ parentNodeId: turn.input.rootNodeId,
+ rootNodeId: turn.input.rootNodeId,
+ kind: native.type === "approval" ? "approval_request" : "user_input_request",
+ status: "waiting",
+ countsForRun: false,
+ providerThreadId: turn.input.providerThread.id,
+ providerTurnId: turn.providerTurn.id,
+ nativeItemRef: nativeRef(nativeId),
+ runtimeRequestId: requestId,
+ checkpointScopeId: null,
+ startedAt: runtimeRequest.createdAt,
+ completedAt: null,
+ };
+ const base = {
+ ...baseItem(turn, `request:${nativeId}`, time),
+ id: idAllocator.derive.approvalTurnItem({ requestId }),
+ nodeId,
+ status: "waiting" as const,
+ title: null,
+ completedAt: null,
+ };
+ const item: OrchestrationV2TurnItem =
+ native.type === "approval"
+ ? {
+ ...base,
+ type: "approval_request",
+ requestId,
+ requestKind: kind === "user_input" ? "command" : kind,
+ prompt:
+ native.value.subject.command ??
+ native.value.subject.path ??
+ native.value.subject.host ??
+ native.value.subject.target ??
+ native.value.toolName ??
+ "Muse requests permission",
+ options: museApprovalOptions(native.value),
+ }
+ : {
+ ...base,
+ type: "user_input_request",
+ requestId,
+ questions: native.value.questions.map((question) => ({
+ id: question.id,
+ header: question.header || "Question",
+ question: question.question,
+ options: question.options.map((option) => ({
+ label: option.label,
+ description: option.description || option.label,
+ })),
+ multiSelect: question.selection.mode === "multiple",
+ allowCustomAnswer: true,
+ required: true,
+ })),
+ };
+ pending.set(requestId, { native, request: runtimeRequest, node, item });
+ yield* emit({
+ type: "runtime_request.updated",
+ driver: MUSE_PROVIDER,
+ threadId: turn.input.threadId,
+ runtimeRequest,
+ });
+ yield* emit({ type: "node.updated", driver: MUSE_PROVIDER, node });
+ yield* emit({ type: "turn_item.updated", driver: MUSE_PROVIDER, turnItem: item });
+ yield* updateSession("waiting");
+ });
+ const handleNotification = Effect.fnUntraced(function* (method: string, data: unknown) {
+ const params = yield* decode(recordSchema, data);
+ if (params.sessionId !== nativeSessionId) return;
+ if (method === "view/gap")
+ return yield* protocolError("Muse delivery gap requires session recovery");
+ if (method === "session/contextUsage") {
+ const usage = yield* decode(MuseContextUsage, params);
+ const currentTurn = active?.providerTurn ?? lastProviderTurn;
+ const updatedAt = DateTime.formatIso(yield* DateTime.now);
+ const tokenUsage = {
+ ...currentTurn?.tokenUsage,
+ usedTokens: usage.usedTokens,
+ maxTokens: usage.windowTokens ?? currentTurn?.tokenUsage?.maxTokens ?? undefined,
+ updatedAt,
+ };
+ yield* updateThread({ contextUsage: tokenUsage });
+ if (currentTurn) {
+ const updated = { ...currentTurn, tokenUsage };
+ if (active) active.providerTurn = updated;
+ else lastProviderTurn = updated;
+ yield* emit({
+ type: "provider_turn.updated",
+ driver: MUSE_PROVIDER,
+ providerTurn: updated,
+ });
+ }
+ return;
+ }
+ const itemEvent = ["item/started", "item/updated", "item/completed"].includes(method)
+ ? (yield* decode(MuseItemEvent, params)).item
+ : undefined;
+ if (itemEvent) {
+ const owner = observedChildren.get(itemEvent.itemId);
+ if (owner && owner !== active && itemEvent.turnId === owner.nativeId) {
+ const previous = owner.items.get(itemEvent.itemId);
+ if (!previous || itemEvent.revision > previous.revision) {
+ owner.items.set(itemEvent.itemId, itemEvent);
+ yield* publishItem(owner, itemEvent);
+ }
+ return;
+ }
+ }
+ // Muse starts a turn on its own when a workflow finishes, to report its result.
+ // During a run, that run shows it. Otherwise hold it and ask the orchestrator for
+ // a run; that run takes the held events, unless a user turn takes them first.
+ if (
+ method === "turn/started" &&
+ typeof params.turnId === "string" &&
+ params.turnId !== active?.nativeId &&
+ params.turnId !== wake?.nativeId
+ ) {
+ if (active && !active.compact) active.joined.add(params.turnId);
+ else if (!active && !wake) {
+ const held = { nativeId: params.turnId, events: [] };
+ wake = held;
+ const notification = backgroundWorkNotification(finishedBackground.splice(0));
+ if (thread?.appThreadId && options.continuationRequests)
+ yield* options.continuationRequests.offer({
+ threadId: thread.appThreadId,
+ providerThreadId: thread.id,
+ driver: MUSE_PROVIDER,
+ detail: null,
+ ...(notification ? { notification } : {}),
+ dispatchIfCurrent: (dispatch) =>
+ wake === held ? Effect.map(dispatch, Option.some) : Effect.succeed(Option.none()),
+ clearIfCurrent: () =>
+ Effect.sync(() => {
+ if (wake === held) wake = undefined;
+ }),
+ });
+ }
+ }
+ if (wake && active?.nativeId !== wake.nativeId) {
+ const turnId = typeof params.turnId === "string" ? params.turnId : itemEvent?.turnId;
+ if (turnId === wake.nativeId) {
+ wake.events.push([method, data]);
+ return;
+ }
+ }
+ const turn = active;
+ if (!turn) return;
+ if (typeof params.turnId === "string" && !owns(turn, params.turnId) && !turn.compact)
+ return;
+ switch (method) {
+ case "item/started":
+ case "item/updated":
+ case "item/completed": {
+ const item = itemEvent!;
+ if (
+ item.turnId &&
+ !owns(turn, item.turnId) &&
+ !(turn.compact && item.kind === "compaction")
+ )
+ return;
+ const previous = turn.items.get(item.itemId);
+ if (previous && previous.revision >= item.revision) return;
+ turn.items.set(item.itemId, item);
+ turn.dirty.delete(item.itemId);
+ yield* publishItem(turn, item);
+ if (turn.compact && item.kind === "compaction" && item.status !== "inProgress") {
+ yield* finish(
+ turn,
+ item.status === "completed" && (!item.outcome || item.outcome === "compacted")
+ ? "completed"
+ : item.status === "cancelled"
+ ? "cancelled"
+ : "failed",
+ item.failureReason ?? item.reason,
+ );
+ }
+ break;
+ }
+ case "item/delta": {
+ const delta = yield* decode(MuseDelta, params);
+ const previous = turn.items.get(delta.itemId);
+ if (!previous || previous.status !== "inProgress") return;
+ const field = delta.field ?? "text";
+ let item = previous;
+ if (field === "text") item = { ...previous, text: (previous.text ?? "") + delta.delta };
+ else if (field === "output" || field === "visibleOutput")
+ item = { ...previous, visibleOutput: (previous.visibleOutput ?? "") + delta.delta };
+ else if (field.startsWith("summary.")) {
+ const index = Number(field.slice(8));
+ if (Number.isSafeInteger(index) && index >= 0 && index < 100) {
+ const summary = [...(previous.summary ?? [])];
+ summary[index] = (summary[index] ?? "") + delta.delta;
+ item = { ...previous, summary };
+ }
+ }
+ if (item === previous) return;
+ turn.items.set(item.itemId, item);
+ turn.dirty.add(item.itemId);
+ if (!turn.flushScheduled) {
+ turn.flushScheduled = true;
+ yield* Effect.sleep(50).pipe(
+ Effect.andThen(Queue.offer(inbox, { type: "flush", turn })),
+ Effect.forkIn(scope),
+ );
+ }
+ break;
+ }
+ case "turn/completed": {
+ if (turn.compact) return;
+ const result = yield* decode(MuseTurnCompleted, params);
+ // A joined Muse turn ending does not end this run; its own turn does.
+ if (result.turnId !== turn.nativeId) break;
+ if (result.usage) {
+ const usage = result.usage;
+ turn.providerTurn = {
+ ...turn.providerTurn,
+ turnTokenUsage: {
+ usageScope: "main_agent",
+ usageStatus: "complete",
+ hasSubagents: [...turn.items.values()].some((item) => item.kind === "subagent"),
+ inputTokens: turn.providerTurn.turnTokenUsage?.inputTokens ?? usage.inputTokens,
+ outputTokens: usage.outputTokens,
+ cachedInputTokens: usage.cacheReadTokens ?? usage.cachedTokens,
+ reasoningTokens: usage.reasoningTokens,
+ ...(usage.cacheWriteTokens === undefined
+ ? {}
+ : { cacheCreationTokens: usage.cacheWriteTokens }),
+ },
+ };
+ }
+ const status =
+ result.terminal === "completed"
+ ? "completed"
+ : result.terminal === "cancelled"
+ ? turn.interruptRequested
+ ? "interrupted"
+ : "cancelled"
+ : "failed";
+ yield* finish(turn, status, result.error?.message ?? result.reason);
+ break;
+ }
+ case "approval/requested":
+ case "approval/updated":
+ if (
+ method === "approval/updated" &&
+ ![...pending.values()].some(
+ (entry) =>
+ entry.native.type === "approval" &&
+ entry.native.value.approvalId === params.approvalId,
+ )
+ )
+ break;
+ yield* publishRequest({ type: "approval", value: yield* decode(MuseApproval, params) });
+ break;
+ case "userInput/requested":
+ yield* publishRequest({
+ type: "question",
+ value: yield* decode(MuseUserInput, params),
+ });
+ break;
+ case "approval/resolved":
+ case "userInput/settled": {
+ const id = method === "approval/resolved" ? params.approvalId : params.userInputId;
+ if (typeof id === "string")
+ turn.settledRequests.add(
+ `${method === "approval/resolved" ? "approval" : "question"}:${id}`,
+ );
+ const entry = [...pending.values()].find(
+ (candidate) => candidate.request.nativeRequestRef?.nativeId === id,
+ );
+ if (entry) {
+ // An approval settled outside T3 still shows Muse's own decision.
+ const native =
+ method === "approval/resolved" && typeof params.decision === "string"
+ ? museApprovalDecision({ decision: params.decision, scope: "once" })
+ : undefined;
+ if (!entry.response && native) entry.response = { decision: native };
+ yield* resolvePending(entry, "resolved");
+ }
+ if (!pending.size) yield* updateSession("running");
+ break;
+ }
+ case "session/tokenUsage": {
+ const usage = yield* decode(MuseTokenUsageEvent, params);
+ const previous = turn.providerTurn.turnTokenUsage;
+ const contextUsage = thread?.contextUsage;
+ turn.providerTurn = {
+ ...turn.providerTurn,
+ ...(contextUsage
+ ? {
+ tokenUsage: {
+ ...turn.providerTurn.tokenUsage,
+ usedTokens: contextUsage.usedTokens,
+ inputTokens: usage.usage.inputTokens,
+ outputTokens: usage.usage.outputTokens,
+ cachedInputTokens: usage.usage.cacheReadTokens ?? usage.usage.cachedTokens,
+ reasoningOutputTokens: usage.usage.reasoningTokens,
+ updatedAt: DateTime.formatIso(yield* DateTime.now),
+ },
+ }
+ : {}),
+ turnTokenUsage: {
+ usageScope: "main_agent",
+ usageStatus: "partial",
+ hasSubagents: [...turn.items.values()].some((item) => item.kind === "subagent"),
+ inputTokens: (previous?.inputTokens ?? 0) + usage.promptTokens,
+ outputTokens: (previous?.outputTokens ?? 0) + usage.usage.outputTokens,
+ cachedInputTokens:
+ (previous?.cachedInputTokens ?? 0) +
+ (usage.usage.cacheReadTokens ?? usage.usage.cachedTokens),
+ ...(usage.usage.cacheWriteTokens === undefined &&
+ previous?.cacheCreationTokens === undefined
+ ? {}
+ : {
+ cacheCreationTokens:
+ (previous?.cacheCreationTokens ?? 0) + (usage.usage.cacheWriteTokens ?? 0),
+ }),
+ reasoningTokens: (previous?.reasoningTokens ?? 0) + usage.usage.reasoningTokens,
+ },
+ };
+ yield* emit({
+ type: "provider_turn.updated",
+ driver: MUSE_PROVIDER,
+ providerTurn: turn.providerTurn,
+ });
+ break;
+ }
+ case "session/todoListChanged": {
+ const todo = yield* decode(MuseTodoList, params);
+ const steps: ReadonlyArray = todo.items
+ .filter((item) => item.text.trim() && item.status !== "cancelled")
+ .map((item, index) => ({
+ id: `${turn.nativeId}:todo:${index}`,
+ text: item.text.trim(),
+ status:
+ item.status === "completed"
+ ? "completed"
+ : item.status === "inProgress"
+ ? "running"
+ : "pending",
+ }));
+ const time = yield* DateTime.now;
+ const base = baseItem(turn, "todo", time);
+ const planId =
+ turn.todoPlanId ??
+ (yield* idAllocator.allocate
+ .plan({
+ threadId: turn.input.threadId,
+ runId: turn.input.runId,
+ driver: MUSE_PROVIDER,
+ })
+ .pipe(
+ Effect.mapError((cause) =>
+ protocolError("Cannot allocate Muse todo list", cause),
+ ),
+ ));
+ turn.todoPlanId = planId;
+ yield* emit({
+ type: "plan.updated",
+ driver: MUSE_PROVIDER,
+ plan: {
+ id: planId,
+ threadId: turn.input.threadId,
+ runId: turn.input.runId,
+ nodeId: base.nodeId,
+ kind: "todo_list",
+ status: steps.every((step) => step.status === "completed") ? "completed" : "active",
+ steps,
+ },
+ });
+ yield* emit({
+ type: "node.updated",
+ driver: MUSE_PROVIDER,
+ node: {
+ id: base.nodeId,
+ threadId: base.threadId,
+ runId: base.runId,
+ parentNodeId: turn.input.rootNodeId,
+ rootNodeId: turn.input.rootNodeId,
+ kind: "todo_list",
+ status: "completed",
+ countsForRun: false,
+ providerThreadId: base.providerThreadId,
+ providerTurnId: base.providerTurnId,
+ nativeItemRef: null,
+ runtimeRequestId: null,
+ checkpointScopeId: null,
+ startedAt: base.startedAt,
+ completedAt: time,
+ },
+ });
+ yield* emit({
+ type: "turn_item.updated",
+ driver: MUSE_PROVIDER,
+ turnItem: {
+ ...base,
+ nativeItemRef: null,
+ type: "todo_list",
+ status: "completed",
+ title: null,
+ completedAt: time,
+ planId,
+ steps,
+ },
+ });
+ break;
+ }
+ case "turn/retryScheduled": {
+ const retry = yield* decode(MuseTurnRetryScheduled, params);
+ const time = yield* DateTime.now;
+ yield* emit({
+ type: "turn_item.updated",
+ driver: MUSE_PROVIDER,
+ turnItem: {
+ ...baseItem(turn, `retry:${retry.nextAttempt}`, time),
+ type: "system_notice",
+ status: "completed",
+ title: "Muse retry",
+ completedAt: time,
+ message: `Muse is retrying this turn (attempt ${retry.nextAttempt} of ${retry.maxAttempts}): ${retry.reason}`,
+ },
+ });
+ break;
+ }
+ }
+ });
+ yield* Stream.fromQueue(inbox).pipe(
+ Stream.runForEach((entry) =>
+ Effect.gen(function* () {
+ if (entry.type === "flush") {
+ const turn = entry.turn;
+ turn.flushScheduled = false;
+ if (active !== turn) return;
+ for (const id of turn.dirty) {
+ const item = turn.items.get(id);
+ if (item) yield* publishItem(turn, item);
+ }
+ turn.dirty.clear();
+ } else if (entry.epoch === hostEpoch) {
+ if (entry.type === "failure") yield* failHost(entry.cause);
+ else {
+ if (options.nativeEventLogger && entry.method !== "item/delta")
+ yield* options.nativeEventLogger.write(
+ { provider: "muse", method: entry.method, params: entry.params },
+ input.threadId,
+ );
+ yield* handleNotification(entry.method, entry.params).pipe(
+ Effect.catch((cause) =>
+ INFORMATIONAL_NOTIFICATIONS.has(entry.method)
+ ? Effect.logWarning(`Skipped an unreadable Muse ${entry.method}`, cause)
+ : failHost(cause),
+ ),
+ );
+ }
+ }
+ }).pipe(eventPermit.withPermits(1)),
+ ),
+ Effect.forkIn(scope),
+ );
+ const launchHost = Effect.fnUntraced(function* () {
+ const epoch = ++hostEpoch;
+ const mcpSession = McpProviderSession.readMcpProviderSession(input.threadId);
+ const created = yield* Effect.acquireRelease(
+ createMuseSdkHostEffect(
+ {
+ binaryPath: options.settings.binaryPath || "muse",
+ cwd,
+ environment: McpProviderSession.withAgentDeviceEnvironment(
+ options.environment,
+ mcpSession,
+ ),
+ runtimeMode: input.runtimePolicy.runtimeMode,
+ },
+ options.createHost,
+ ).pipe(
+ Effect.mapError(
+ (error) =>
+ new ProviderAdapterOpenSessionError({
+ driver: MUSE_PROVIDER,
+ providerSessionId: input.providerSessionId,
+ cause: error.cause,
+ }),
+ ),
+ ),
+ (created) =>
+ Effect.gen(function* () {
+ if (host === created) {
+ closed = true;
+ hostEpoch++;
+ }
+ yield* Effect.tryPromise(() => created.close()).pipe(Effect.ignore);
+ }),
+ { interruptible: true },
+ ).pipe(Effect.provideService(Scope.Scope, scope));
+ host = created;
+ created.connection.onNotification((notification) => {
+ Queue.offerUnsafe(inbox, {
+ type: "notification",
+ method: notification.method,
+ params: notification.params,
+ epoch,
+ });
+ });
+ created.connection.onProtocolError((cause) => {
+ Queue.offerUnsafe(inbox, { type: "failure", cause, epoch });
+ });
+ // These are presentation receipts only. The matching notifications drive the UI,
+ // and decisions travel as `approval/decide` and `userInput/answer` commands.
+ created.connection.onServerRequest(async (request) => {
+ if (request.method === "approval/request" || request.method === "userInput/request")
+ return {};
+ throw new Error(`Unsupported Muse server request: ${request.method}`);
+ });
+ void created.connection.closed.then(() => {
+ if (!closed && epoch === hostEpoch)
+ Queue.offerUnsafe(inbox, {
+ type: "failure",
+ cause: new Error("Muse connection closed unexpectedly"),
+ epoch,
+ });
+ });
+ void created.exited.then((exit) => {
+ if (!closed && epoch === hostEpoch) {
+ const reason = created
+ .stderrTail?.()
+ .findLast((line) => line.trim())
+ ?.trim();
+ Queue.offerUnsafe(inbox, {
+ type: "failure",
+ cause: new Error(
+ `Muse exited unexpectedly (${exit.code ?? exit.signal})${reason ? `: ${reason}` : ""}`,
+ ),
+ epoch,
+ });
+ }
+ });
+ });
+ yield* Effect.addFinalizer(() =>
+ Effect.gen(function* () {
+ closed = true;
+ hostEpoch++;
+ if (active) yield* finish(active, "cancelled", "Muse session closed", "broken");
+ yield* settleObservedChildren("cancelled");
+ yield* Queue.shutdown(inbox);
+ yield* Queue.shutdown(events);
+ }).pipe(eventPermit.withPermits(1)),
+ );
+ yield* launchHost();
+
+ const register = Effect.fnUntraced(function* (args: ProviderAdapterV2EnsureThreadInput) {
+ if (broken || closed)
+ return yield* protocolError("Muse host is unavailable; reopen the session");
+ if (active)
+ return yield* protocolError("Cannot change Muse sessions during an active turn");
+ const existing = args.existingProviderThread;
+ if (
+ existing &&
+ (existing.driver !== MUSE_PROVIDER || existing.providerInstanceId !== options.instanceId)
+ )
+ return yield* protocolError("Muse thread belongs to another provider instance");
+ const requestedId = existing
+ ? (existing.nativeThreadRef?.nativeId ?? undefined)
+ : input.initialNativeThreadId;
+ if (
+ thread &&
+ (!requestedId || requestedId === nativeSessionId) &&
+ thread.appThreadId === args.threadId
+ )
+ return thread;
+ if (thread) return yield* protocolError("Open a new host to attach another Muse session");
+ let missingNativeSession = false;
+ return yield* Effect.gen(function* () {
+ nativeSessionId = requestedId ?? host.connection.mintCommandId();
+ const mcpSession = McpProviderSession.readMcpProviderSession(args.threadId);
+ if (mcpSession && !host.initializeResult.grantedCapabilities.includes("sessionMcp"))
+ return yield* protocolError(
+ "Update Muse Code to a version that supports session MCP servers",
+ );
+ const config = mcpSession
+ ? {
+ mcpServers: {
+ // Muse defaults to "required", which fails the whole run when T3's
+ // tools cannot be reached. The agent should still work without them.
+ "t3-code": {
+ transport: "streamableHttp",
+ mode: "optional",
+ url: mcpSession.endpoint,
+ headers: { Authorization: mcpSession.authorizationHeader },
+ },
+ },
+ }
+ : undefined;
+ const startModel = yield* resolveModel(args.modelSelection);
+ const result = yield* request(
+ requestedId ? "session/resume" : "session/start",
+ requestedId
+ ? // T3 already has the transcript; skip Muse's history payload.
+ { excludeItems: true, ...(config ? { config } : {}) }
+ : {
+ workspaceRoot: cwd,
+ ...(config ? { config } : {}),
+ ...(startModel ? { modelId: startModel } : {}),
+ providerId: "meta",
+ approvalMode: museApprovalMode(args.runtimePolicy.runtimeMode),
+ },
+ ).pipe(
+ Effect.catch((error) => {
+ missingNativeSession =
+ requestedId !== undefined &&
+ error.payload instanceof MspError &&
+ (error.payload.kind === "sessionNotFound" || error.payload.kind === "notFound");
+ return Effect.fail(error);
+ }),
+ Effect.flatMap((value) => decode(MuseSessionResult, value)),
+ );
+ if (result.session.sessionId !== nativeSessionId)
+ return yield* protocolError("Muse returned a different session identity");
+ if (requestedId)
+ yield* request("session/setApprovalMode", {
+ mode: museApprovalMode(args.runtimePolicy.runtimeMode),
+ });
+ // A resumed session keeps the model it last ran with; the next turn
+ // switches it when the selection differs.
+ const createdAt = yield* DateTime.now;
+ thread = existing
+ ? {
+ ...existing,
+ providerSessionId: input.providerSessionId,
+ nativeThreadRef: nativeRef(result.session.sessionId),
+ status: "idle",
+ updatedAt: createdAt,
+ }
+ : {
+ id: idAllocator.derive.providerThread({
+ driver: MUSE_PROVIDER,
+ providerInstanceId: options.instanceId,
+ nativeThreadId: nativeSessionId,
+ }),
+ driver: MUSE_PROVIDER,
+ providerInstanceId: options.instanceId,
+ providerSessionId: input.providerSessionId,
+ appThreadId: args.threadId,
+ ownerNodeId: null,
+ nativeThreadRef: nativeRef(nativeSessionId),
+ nativeConversationHeadRef: null,
+ status: "idle",
+ firstRunOrdinal: null,
+ lastRunOrdinal: null,
+ handoffIds: [],
+ forkedFrom: null,
+ createdAt,
+ updatedAt: createdAt,
+ };
+ session = {
+ ...session,
+ model: result.session.modelId ?? args.modelSelection.model,
+ };
+ yield* emit({
+ type: "provider_thread.updated",
+ driver: MUSE_PROVIDER,
+ providerThread: thread,
+ });
+ return thread;
+ }).pipe(
+ Effect.onError((cause) =>
+ missingNativeSession ? Effect.void : eventPermit.withPermits(1)(failHost(cause)),
+ ),
+ );
+ });
+ const prompt = Effect.fnUntraced(function* (message: ProviderAdapterV2TurnMessage) {
+ const parts: SendUserTurnOptions["input"] = [];
+ const text = providerMessageTextWithAttachmentPaths({
+ text: message.text,
+ attachments: message.attachments,
+ attachmentsDir: options.serverConfig.attachmentsDir,
+ });
+ if (text) parts.push({ type: "text", text });
+ for (const attachment of message.attachments)
+ if (isProviderNativeImageAttachment(attachment)) {
+ const path = resolveAttachmentPath({
+ attachmentsDir: options.serverConfig.attachmentsDir,
+ attachment,
+ });
+ if (!path) return yield* protocolError("Muse image attachment is missing");
+ const bytes = yield* options.fileSystem
+ .readFile(path)
+ .pipe(Effect.mapError((cause) => protocolError("Cannot read Muse image", cause)));
+ parts.push({
+ type: "image",
+ base64Data: Buffer.from(bytes).toString("base64"),
+ mediaType: attachment.mimeType,
+ });
+ }
+ if (!parts.length) return yield* protocolError("Muse needs text or an image");
+ return parts;
+ });
+ const validateThread = (candidate: OrchestrationV2ProviderThread) =>
+ thread !== undefined &&
+ candidate.driver === MUSE_PROVIDER &&
+ candidate.providerInstanceId === options.instanceId &&
+ candidate.appThreadId === thread.appThreadId &&
+ candidate.nativeThreadRef?.nativeId === nativeSessionId;
+ const selectionEffort = Effect.fnUntraced(function* (selection: ModelSelection) {
+ if (selection.instanceId !== options.instanceId)
+ return yield* protocolError("Model selection belongs to another Muse instance");
+ const catalog = options.modelCatalog ? yield* options.modelCatalog : [];
+ const model = yield* resolveModel(selection);
+ const selected = getModelSelectionStringOptionValue(selection, "reasoningEffort");
+ // With no saved choice, the model's own default applies.
+ return resolveMuseReasoningEffort(
+ catalog.find((entry) => entry.slug === model)?.capabilities ?? museModelCapabilities(),
+ selected,
+ );
+ });
+ const start = Effect.fnUntraced(function* (
+ turnInput: ProviderAdapterV2TurnInput,
+ compact = false,
+ ) {
+ if (!validateThread(turnInput.providerThread) || broken || closed)
+ return yield* protocolError("Muse thread is not attached to this host");
+ if (active)
+ return yield* protocolError(
+ "Muse already has an active turn; queue through the orchestrator",
+ );
+ if (turnInput.runtimePolicy.interactionMode === "plan")
+ return yield* protocolError("Muse does not support dedicated Plan mode");
+ if (turnInput.runtimePolicy.runtimeMode !== input.runtimePolicy.runtimeMode)
+ return yield* protocolError("Runtime policy changes require a fresh Muse host");
+ // A continuation run takes the turn Muse already started; it sends no prompt.
+ const continuation =
+ turnInput.message.createdBy === "agent" &&
+ turnInput.message.creationSource === "provider";
+ const adopted = continuation ? wake : undefined;
+ const effort = continuation ? undefined : yield* selectionEffort(turnInput.modelSelection);
+ const parts = compact || continuation ? [] : yield* prompt(turnInput.message);
+ const targetModel = continuation
+ ? undefined
+ : yield* resolveModel(turnInput.modelSelection);
+ if (targetModel && session.model !== targetModel) {
+ yield* request("session/setModel", {
+ model: { modelId: targetModel, providerId: "meta" },
+ });
+ session = { ...session, model: targetModel };
+ }
+ const nativeId = adopted?.nativeId ?? host.connection.mintCommandId();
+ const startedAt = yield* DateTime.now;
+ const providerTurn: OrchestrationV2ProviderTurn = {
+ id: idAllocator.derive.providerTurn({
+ driver: MUSE_PROVIDER,
+ nativeTurnId: `${options.instanceId}:${nativeSessionId}:${nativeId}`,
+ }),
+ providerThreadId: turnInput.providerThread.id,
+ nodeId: turnInput.rootNodeId,
+ runAttemptId: turnInput.attemptId,
+ nativeTurnRef: compact
+ ? { ...nativeRef(nativeId), strength: "weak" }
+ : nativeRef(nativeId),
+ ordinal: turnInput.providerTurnOrdinal,
+ status: "running",
+ startedAt,
+ completedAt: null,
+ };
+ const turn: ActiveTurn = {
+ input: turnInput,
+ providerTurn,
+ nativeId,
+ joined: new Set(),
+ items: new Map(),
+ ordinals: new Map(),
+ started: new Map(),
+ dirty: new Set(),
+ settledRequests: new Set(),
+ done: yield* Deferred.make(),
+ nextOrdinal: turnInput.providerTurnOrdinal * 100 + 1,
+ flushScheduled: false,
+ interruptRequested: false,
+ compact,
+ };
+ yield* Effect.gen(function* () {
+ thread = turnInput.providerThread;
+ active = turn;
+ yield* emit({
+ type: "provider_turn.updated",
+ driver: MUSE_PROVIDER,
+ threadId: turnInput.threadId,
+ providerTurn,
+ });
+ yield* updateThread({
+ status: "active",
+ firstRunOrdinal: thread.firstRunOrdinal ?? turnInput.runOrdinal,
+ lastRunOrdinal: turnInput.runOrdinal,
+ });
+ yield* updateSession("running");
+ // A user turn takes a held Muse turn: Muse runs it first, so this run shows it
+ // (and its approvals), and the continuation asked for it is no longer needed.
+ const held = wake;
+ wake = undefined;
+ if (continuation && !held) return yield* finish(turn, "completed");
+ if (held && !continuation) turn.joined.add(held.nativeId);
+ for (const [method, data] of held?.events ?? [])
+ yield* handleNotification(method, data).pipe(Effect.catch(failHost));
+ }).pipe(eventPermit.withPermits(1));
+ if (continuation) return;
+ yield* Effect.gen(function* () {
+ if (compact) {
+ const result = yield* request("session/compact", {}, true, nativeId).pipe(
+ Effect.flatMap((value) => decode(MuseCompactResult, value)),
+ );
+ if (result.status === "noop")
+ yield* eventPermit.withPermits(1)(
+ finish(turn, "failed", result.reason ?? "Muse has no context to compact."),
+ );
+ else if (result.status !== "accepted")
+ return yield* protocolError(
+ `Muse returned an unsupported compaction status: ${result.status}`,
+ );
+ } else {
+ const result = yield* request(
+ "turn/start",
+ {
+ input: [
+ {
+ type: "text",
+ text: buildRuntimeInstructions({
+ harness: "Muse Code",
+ model: session.model ?? undefined,
+ reasoningEffort: effort,
+ }),
+ },
+ ...parts,
+ ],
+ displayText: turnInput.message.text || "Image attachment",
+ // A resumed session keeps the root it was created with; pin it to
+ // this thread's current checkout so edits land where T3 tracks them.
+ workspaceRoots: [cwd],
+ ifBusy: "queue",
+ ...(effort ? { reasoningEffort: effort } : {}),
+ },
+ true,
+ nativeId,
+ ).pipe(Effect.flatMap((value) => decode(MuseTurnStartResult, value)));
+ if (result.turnId !== nativeId) {
+ yield* eventPermit.withPermits(1)(
+ failHost(new Error("Muse admitted an unowned turn")),
+ );
+ return yield* protocolError("Muse admitted the turn under an unexpected identity");
+ }
+ }
+ }).pipe(
+ Effect.onError((cause) => {
+ const error = Cause.squash(cause);
+ const detail = isProtocolError(error)
+ ? error.detail
+ : error instanceof Error
+ ? error.message
+ : "Muse could not start the turn.";
+ return eventPermit.withPermits(1)(finish(turn, "failed", detail));
+ }),
+ );
+ });
+ // Only messages are read back; T3 owns turn and item history.
+ const snapshot = Effect.fnUntraced(function* (
+ current: OrchestrationV2ProviderThread,
+ ): Effect.fn.Return {
+ const result = yield* request("session/read", { excludeItems: false }, false).pipe(
+ Effect.flatMap((value) => decode(MuseSessionResult, value)),
+ );
+ if (result.session.sessionId !== nativeSessionId)
+ return yield* protocolError("Muse snapshot belongs to a different session");
+ const items = result.history?.items ?? result.history?.snapshot?.state.items ?? [];
+ const now = yield* DateTime.now;
+ return {
+ providerThread: current,
+ providerTurns: [],
+ messages: items.flatMap((item): OrchestrationV2ConversationMessage[] =>
+ item.kind === "agentMessage" || item.kind === "userMessage"
+ ? [
+ {
+ id: idAllocator.derive.messageFromProviderItem({
+ driver: MUSE_PROVIDER,
+ nativeItemId: `${options.instanceId}:${current.id}:${item.turnId ?? "history"}:${item.itemId}`,
+ }),
+ threadId: current.appThreadId ?? input.threadId,
+ runId: null,
+ nodeId: null,
+ role: item.kind === "agentMessage" ? "assistant" : "user",
+ text: item.text ?? "",
+ attachments: [],
+ streaming: item.status === "inProgress",
+ createdBy: item.kind === "agentMessage" ? "agent" : "user",
+ creationSource: "provider",
+ createdAt: now,
+ updatedAt: now,
+ },
+ ]
+ : [],
+ ),
+ runtimeRequests: [...pending.values()].map((entry) => entry.request),
+ providerPayload: items,
+ };
+ });
+ const runtime: ProviderAdapterV2SessionRuntime = {
+ instanceId: options.instanceId,
+ driver: MUSE_PROVIDER,
+ providerSessionId: input.providerSessionId,
+ providerSession: session,
+ events: Stream.fromQueue(events),
+ // A running workflow or a held Muse turn keeps the host: idle release must wait.
+ hasPendingBackgroundWork: Effect.sync(
+ () => observedChildren.size > 0 || wake !== undefined,
+ ),
+ ensureThread: (args) =>
+ register(args).pipe(
+ commands.withPermits(1),
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterEnsureThreadError({
+ driver: MUSE_PROVIDER,
+ threadId: args.threadId,
+ cause,
+ }),
+ ),
+ ),
+ resumeThread: (args) =>
+ register({
+ threadId: args.threadId ?? args.providerThread.appThreadId ?? input.threadId,
+ modelSelection: args.modelSelection ?? input.modelSelection,
+ runtimePolicy: args.runtimePolicy ?? input.runtimePolicy,
+ existingProviderThread: args.providerThread,
+ }).pipe(
+ commands.withPermits(1),
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterResumeThreadError({
+ driver: MUSE_PROVIDER,
+ providerSessionId: input.providerSessionId,
+ providerThreadId: args.providerThread.id,
+ cause,
+ }),
+ ),
+ ),
+ startTurn: (args) =>
+ start(args).pipe(
+ commands.withPermits(1),
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterTurnStartError({
+ driver: MUSE_PROVIDER,
+ threadId: args.threadId,
+ providerThreadId: args.providerThread.id,
+ runId: args.runId,
+ cause,
+ }),
+ ),
+ ),
+ compactThread: (args) => start(args, true).pipe(commands.withPermits(1)),
+ steerTurn: (args) =>
+ Effect.gen(function* () {
+ const turn = active;
+ if (
+ !turn ||
+ turn.providerTurn.id !== args.providerTurnId ||
+ !validateThread(args.providerThread) ||
+ turn.compact
+ )
+ return yield* protocolError("This Muse turn cannot be steered");
+ const parts = yield* prompt(args.message);
+ const result = yield* request("turn/steer", {
+ expectedTurnId: turn.nativeId,
+ input: parts,
+ }).pipe(Effect.flatMap((value) => decode(MuseTurnStartResult, value)));
+ if (result.turnId !== turn.nativeId)
+ return yield* protocolError("Muse steering targeted a different turn");
+ }).pipe(
+ commands.withPermits(1),
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterSteerRunError({
+ driver: MUSE_PROVIDER,
+ providerThreadId: args.providerThread.id,
+ providerTurnId: args.providerTurnId,
+ cause,
+ }),
+ ),
+ ),
+ interruptTurn: (args) =>
+ Effect.gen(function* () {
+ const turn = active;
+ if (
+ !turn ||
+ turn.providerTurn.id !== args.providerTurnId ||
+ !validateThread(args.providerThread)
+ )
+ return yield* protocolError("This Muse turn is no longer active");
+ turn.interruptRequested = true;
+ if (turn.compact) {
+ yield* eventPermit.withPermits(1)(
+ Effect.gen(function* () {
+ if (active !== turn) return;
+ hostEpoch++;
+ yield* Effect.tryPromise(() => host.close()).pipe(
+ Effect.mapError((cause) => protocolError("Cannot stop Muse compaction", cause)),
+ Effect.onError(failHost),
+ );
+ broken = true;
+ yield* finish(turn, "interrupted", undefined, "broken");
+ yield* settleObservedChildren("interrupted");
+ yield* updateSession("stopped");
+ yield* Queue.end(events);
+ }),
+ );
+ return;
+ }
+ // Muse runs a joined turn first, so Stop must end it too.
+ for (const joined of turn.joined)
+ yield* request("turn/interrupt", { turnId: joined }).pipe(Effect.ignore);
+ yield* request("turn/interrupt", { turnId: turn.nativeId });
+ yield* Deferred.await(turn.done).pipe(
+ Effect.timeout(options.requestTimeoutMs ?? 30_000),
+ Effect.mapError((cause) => protocolError("Muse did not confirm interruption", cause)),
+ Effect.onError((cause) => eventPermit.withPermits(1)(failHost(cause))),
+ );
+ }).pipe(
+ commands.withPermits(1),
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterInterruptError({
+ driver: MUSE_PROVIDER,
+ providerThreadId: args.providerThread.id,
+ providerTurnId: args.providerTurnId,
+ cause,
+ }),
+ ),
+ ),
+ respondToRuntimeRequest: (args) =>
+ Effect.gen(function* () {
+ const entry = pending.get(args.requestId);
+ if (!entry) return yield* protocolError("This Muse request is no longer pending");
+ if (entry.native.type === "approval") {
+ const approval = entry.native.value;
+ const choice = args.decision && museApprovalChoices(approval).get(args.decision);
+ if (!choice) return yield* protocolError("Muse did not offer this approval decision");
+ // Recorded first: Muse can settle the approval before it acknowledges the command.
+ entry.response = { decision: args.decision };
+ yield* request("approval/decide", {
+ approvalId: approval.approvalId,
+ requirementId: approval.currentRequirementId,
+ choiceId: choice.choiceId,
+ }).pipe(Effect.tapError(() => Effect.sync(() => delete entry.response)));
+ } else {
+ const questionRequest = entry.native.value;
+ const answers = [];
+ for (const question of questionRequest.questions) {
+ const raw = yield* decode(responseAnswerSchema, args.answers?.[question.id]);
+ const values = typeof raw === "string" ? [raw] : [...new Set(raw)];
+ const selected = values.filter((value) =>
+ question.options.some((option) => option.label === value),
+ );
+ const freeText = values.filter((value) => !selected.includes(value)).join("\n");
+ if (freeText.length > 500 || (!freeText && !selected.length))
+ return yield* protocolError(
+ "Muse needs a nonempty answer with at most 500 custom characters",
+ );
+ if (
+ (question.selection.mode === "single" && selected.length > 1) ||
+ (selected.length > 0 &&
+ (selected.length < (question.selection.minSelections ?? 0) ||
+ selected.length > (question.selection.maxSelections ?? Infinity)))
+ )
+ return yield* protocolError("Muse question selection count is invalid");
+ answers.push({
+ questionId: question.id,
+ ...(selected.length
+ ? question.selection.mode === "single"
+ ? { selectedLabel: selected[0]! }
+ : { selectedLabels: selected }
+ : {}),
+ ...(freeText ? (selected.length ? { note: freeText } : { freeText }) : {}),
+ });
+ }
+ if (args.answers) entry.response = { answers: args.answers };
+ yield* request("userInput/answer", {
+ userInputId: questionRequest.userInputId,
+ answers,
+ }).pipe(Effect.tapError(() => Effect.sync(() => delete entry.response)));
+ }
+ }).pipe(
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterRuntimeRequestResponseError({
+ driver: MUSE_PROVIDER,
+ requestId: args.requestId,
+ cause,
+ }),
+ ),
+ ),
+ readThreadSnapshot: (args) =>
+ (!validateThread(args.providerThread)
+ ? protocolError("Snapshot requested for a different Muse thread")
+ : snapshot(args.providerThread)
+ ).pipe(
+ commands.withPermits(1),
+ Effect.mapError(
+ (cause) =>
+ new ProviderAdapterReadThreadSnapshotError({
+ driver: MUSE_PROVIDER,
+ providerThreadId: args.providerThread.id,
+ cause,
+ }),
+ ),
+ ),
+ // Muse rejects forks at completed-turn boundaries (InvalidCut), so T3 uses
+ // portable context handoff for forks and does not rewind Muse conversations.
+ rollbackThread: (args) =>
+ Effect.fail(
+ new ProviderAdapterRollbackThreadError({
+ driver: MUSE_PROVIDER,
+ providerThreadId: args.providerThread.id,
+ checkpointId: args.target.checkpointId,
+ cause: "Muse Code does not support conversation rollback in T3 Code.",
+ }),
+ ),
+ forkThread: (args) =>
+ Effect.fail(
+ new ProviderAdapterForkThreadError({
+ driver: MUSE_PROVIDER,
+ providerThreadId: args.sourceProviderThread.id,
+ cause: "Muse Code does not support native forks in T3 Code.",
+ }),
+ ),
+ };
+ return runtime;
+ }),
+ });
+}
diff --git a/apps/server/src/orchestration-v2/Adapters/MuseItemPresentation.test.ts b/apps/server/src/orchestration-v2/Adapters/MuseItemPresentation.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..7e4f489b5b00994398a3fcc2f2103f5bc55a4b7f
--- /dev/null
+++ b/apps/server/src/orchestration-v2/Adapters/MuseItemPresentation.test.ts
@@ -0,0 +1,82 @@
+import { describe, expect, it } from "@effect/vitest";
+
+import type { MuseItem } from "../../provider/museProtocol.ts";
+import { museItemStatus, museToolPresentation } from "./MuseItemPresentation.ts";
+
+const item = (fields: Partial): MuseItem => ({
+ itemId: "native-item",
+ kind: "toolCall",
+ status: "completed",
+ revision: 1,
+ ...fields,
+});
+
+describe("Muse item presentation", () => {
+ it("preserves an edit's file and exact old/new text for the shared diff UI", () => {
+ expect(
+ museToolPresentation(
+ item({
+ tool: "edit_file",
+ args: JSON.stringify({ file_path: "src/index.ts", old_string: "old\n", new_string: "" }),
+ }),
+ ),
+ ).toMatchObject({
+ type: "file_change",
+ status: "completed",
+ fileName: "src/index.ts",
+ oldStr: "old\n",
+ newStr: "",
+ });
+ });
+
+ it("preserves write content and provider-supplied patches", () => {
+ expect(
+ museToolPresentation(
+ item({
+ tool: "write_file",
+ args: JSON.stringify({ path: "README.md", content: "Hello\n" }),
+ }),
+ ),
+ ).toMatchObject({ type: "file_change", newStr: "Hello\n" });
+ expect(
+ museToolPresentation(
+ item({
+ tool: "apply_patch",
+ args: JSON.stringify({ path: "README.md", patch: "@@ -1 +1 @@\n-old\n+new" }),
+ }),
+ ),
+ ).toMatchObject({ type: "file_change", diffStr: "@@ -1 +1 @@\n-old\n+new" });
+ });
+
+ it.each(["rejected", "timedOut", "handedOff"])(
+ "does not report native %s activity as successful",
+ (status) => {
+ const native = item({ tool: "search_files", status, fallbackText: "Native explanation" });
+ expect(museItemStatus(native)).toBe("failed");
+ expect(museToolPresentation(native)).toMatchObject({
+ status: "failed",
+ output: `Muse reported ${status}.\nNative explanation`,
+ });
+ },
+ );
+
+ it("preserves failure details and a known cancelled status", () => {
+ expect(
+ museToolPresentation(
+ item({
+ status: "failed",
+ failureReason: "Permission denied",
+ visibleOutput: "Partial output",
+ }),
+ ),
+ ).toMatchObject({ status: "failed", output: "Permission denied\nPartial output" });
+ expect(museItemStatus(item({ status: "cancelled" }))).toBe("cancelled");
+ });
+
+ it.each(["failed", "noop"])(
+ "keeps %s compaction outcomes from appearing completed",
+ (outcome) => {
+ expect(museItemStatus(item({ kind: "compaction", outcome }))).toBe("failed");
+ },
+ );
+});
diff --git a/apps/server/src/orchestration-v2/Adapters/MuseItemPresentation.ts b/apps/server/src/orchestration-v2/Adapters/MuseItemPresentation.ts
new file mode 100644
index 0000000000000000000000000000000000000000..93df7761a3ebd7599f564605a84278ea6edbdd9a
--- /dev/null
+++ b/apps/server/src/orchestration-v2/Adapters/MuseItemPresentation.ts
@@ -0,0 +1,117 @@
+import type { OrchestrationV2TurnItem, OrchestrationV2TurnItemStatus } from "@t3tools/contracts";
+import * as Schema from "effect/Schema";
+
+import type { MuseItem } from "../../provider/museProtocol.ts";
+
+const decodeToolArgs = Schema.decodeUnknownSync(
+ Schema.fromJsonString(Schema.Record(Schema.String, Schema.Unknown)),
+);
+
+type Fields<
+ T extends OrchestrationV2TurnItem["type"],
+ K extends keyof Extract,
+> = Pick, K>;
+type MuseToolPresentation = {
+ readonly status: OrchestrationV2TurnItemStatus;
+ readonly title: string | null;
+} & (
+ | Fields<"command_execution", "type" | "input" | "output" | "exitCode">
+ | Fields<"file_change", "type" | "fileName" | "oldStr" | "newStr" | "diffStr">
+ | Fields<"web_search", "type" | "patterns" | "results">
+ | Fields<"dynamic_tool", "type" | "toolName" | "input" | "output">
+);
+
+/** Unrecognized native terminal states must not appear as successful work. */
+export function museItemStatus(item: MuseItem): OrchestrationV2TurnItemStatus {
+ if (item.status === "inProgress") return "running";
+ if (item.status === "cancelled") return "cancelled";
+ if (
+ item.status === "completed" &&
+ !(item.kind === "compaction" && item.outcome && item.outcome !== "compacted")
+ )
+ return "completed";
+ return "failed";
+}
+
+/** Converts native tool details into the shared timeline fields used by every client. */
+export function museToolPresentation(
+ item: MuseItem,
+ status = museItemStatus(item),
+): MuseToolPresentation {
+ let args: Record | undefined;
+ if (item.args) {
+ try {
+ args = decodeToolArgs(item.args);
+ } catch {
+ // Streaming model-authored arguments may not be valid JSON yet.
+ }
+ }
+ const stringArg = (...keys: string[]) => {
+ for (const key of keys) {
+ const value = args?.[key];
+ if (typeof value === "string") return value;
+ }
+ return undefined;
+ };
+ const toolName = item.tool ?? item.kind;
+ const title =
+ item.kind === "subagent"
+ ? item.objective || item.role || "Muse agent"
+ : item.kind === "workflow"
+ ? item.entryId || "Workflow"
+ : toolName;
+ const detail =
+ status === "failed" ? item.failureReason || `Muse reported ${item.status}.` : undefined;
+ const shared = { status, title: detail ? `${title}: ${detail}` : title };
+ const text =
+ item.visibleOutput ??
+ item.result?.summary ??
+ item.text ??
+ item.summary?.join("\n") ??
+ item.fallbackText ??
+ item.objective ??
+ "";
+ const output = detail ? [detail, text].filter(Boolean).join("\n") : text;
+
+ if (item.kind === "userShell" || /shell|bash|exec_command/i.test(item.tool ?? "")) {
+ return {
+ ...shared,
+ type: "command_execution",
+ input: item.commandText ?? stringArg("command", "cmd") ?? item.args ?? "",
+ output,
+ ...(item.exitCode === undefined ? {} : { exitCode: item.exitCode }),
+ };
+ }
+ if (item.kind === "toolCall" && /write|edit|patch/i.test(toolName)) {
+ const fileName = stringArg("file_path", "path", "filePath")?.trim();
+ if (fileName) {
+ const oldStr = stringArg("old_string", "old_str", "oldStr", "oldText");
+ const newStr = stringArg("new_string", "new_str", "newStr", "newText", "content");
+ const diffStr = stringArg("diff", "patch", "diffStr");
+ return {
+ ...shared,
+ type: "file_change",
+ fileName,
+ ...(oldStr === undefined ? {} : { oldStr }),
+ ...(newStr === undefined ? {} : { newStr }),
+ ...(diffStr === undefined ? {} : { diffStr }),
+ };
+ }
+ }
+ if (item.kind === "toolCall" && /web|browse|fetch/i.test(toolName)) {
+ const query = stringArg("query", "url", "pattern")?.trim();
+ return {
+ ...shared,
+ type: "web_search",
+ ...(query ? { patterns: [query] } : {}),
+ ...(output ? { results: [{ snippet: output }] } : {}),
+ };
+ }
+ return {
+ ...shared,
+ type: "dynamic_tool",
+ toolName,
+ input: args ?? item.args ?? "",
+ output,
+ };
+}
diff --git a/apps/server/src/orchestration-v2/testkit/OrchestratorReplayFixtures.integration.test.ts b/apps/server/src/orchestration-v2/testkit/OrchestratorReplayFixtures.integration.test.ts
index 56c823810413df86a91dd51a134d74399d39f799..a3925ea409c9d42db0b64c77c8265ded1e17978c 100644
--- a/apps/server/src/orchestration-v2/testkit/OrchestratorReplayFixtures.integration.test.ts
+++ b/apps/server/src/orchestration-v2/testkit/OrchestratorReplayFixtures.integration.test.ts
@@ -19,6 +19,7 @@ import {
OPENCODE2_HTTP_PROTOCOL,
OpenCode2OrchestratorReplayHarness,
} from "../Adapters/OpenCode2AdapterV2.testkit.ts";
+import { MuseOrchestratorReplayHarness } from "../Adapters/MuseAdapterV2.testkit.ts";
import { PiOrchestratorReplayHarness } from "../Adapters/PiAdapterV2.testkit.ts";
import * as IdAllocator from "../IdAllocator.ts";
import { provideDeterministicTestRuntime } from "./DeterministicRuntime.ts";
@@ -100,10 +101,19 @@ const runFixtureProvider = Effect.fn("runOrchestratorReplayFixture")(function* <
);
const fixtureInput = input.buildInput();
const workspace = yield* checkpointWorkspace(input.fixtureName, fixtureInput.workspaceFiles);
+ // Muse canonicalizes its workspace path (macOS /var -> /private/var) before sending it.
const transcript = yield* input.harness.decodeTranscript(
input.driver.driver === "codex"
? materializeReplayTranscriptWorkspace(replayTranscript, workspace)
- : replayTranscript,
+ : input.driver.driver === "muse"
+ ? materializeReplayTranscriptWorkspace(
+ replayTranscript,
+ yield* FileSystem.FileSystem.pipe(
+ Effect.flatMap((fs) => fs.realPath(workspace)),
+ Effect.provide(NodeServices.layer),
+ ),
+ )
+ : replayTranscript,
);
const materialized = yield* materializeFixtureInput({
scenario: input.fixtureName,
@@ -214,6 +224,11 @@ function runFixtureProviderWithRegisteredHarness(input: {
...input,
harness: PiOrchestratorReplayHarness,
}).pipe(Effect.mapError(normalizeTestError), Effect.scoped);
+ case "muse":
+ return runFixtureProvider({
+ ...input,
+ harness: MuseOrchestratorReplayHarness,
+ }).pipe(Effect.mapError(normalizeTestError), Effect.scoped);
default:
return Effect.die(
new Error(`No replay harness registered for provider ${input.driver.driver}.`),
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/index.ts b/apps/server/src/orchestration-v2/testkit/fixtures/index.ts
index 5e3fac3fca984f14a3f3287ed4f025e6ef006b06..77882f3cc5f573b897a1e904ec5898dd09d0e570 100644
--- a/apps/server/src/orchestration-v2/testkit/fixtures/index.ts
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/index.ts
@@ -56,6 +56,12 @@ import { assertCursorMessageSteeringOutput } from "./message_steering/cursor_out
import { assertGrokMessageSteeringOutput } from "./message_steering/grok_output.ts";
import { messageSteeringInput } from "./message_steering/input.ts";
import { assertPiMessageSteeringOutput } from "./message_steering/pi_output.ts";
+import { MUSE_PERMISSION_DECLINED_FILE, musePermissionInput } from "./muse_permission/input.ts";
+import { assertMusePermissionOutput } from "./muse_permission/output.ts";
+import { museWorkflowInput } from "./muse_workflow/input.ts";
+import { assertMuseWorkflowOutput } from "./muse_workflow/output.ts";
+import { assertMuseMultiTurnOutput } from "./multi_turn/muse_output.ts";
+import { assertMuseTurnInterruptOutput } from "./turn_interrupt/muse_output.ts";
import { piCompactionInput } from "./pi_compaction/input.ts";
import { assertPiCompactionOutput } from "./pi_compaction/output.ts";
import { providerThreadResumeInput } from "./provider_thread_resume/input.ts";
@@ -191,6 +197,7 @@ import {
CODEX_MODEL_SELECTION,
CURSOR_MODEL_SELECTION,
GROK_MODEL_SELECTION,
+ MUSE_MODEL_SELECTION,
OPENCODE_MODEL_SELECTION,
OPENCODE2_MODEL_SELECTION,
PI_MODEL_SELECTION,
@@ -628,6 +635,12 @@ export const ORCHESTRATOR_REPLAY_FIXTURES: ReadonlyArray
+ ["user_message", "assistant_message", "reasoning", "checkpoint"].includes(item.type),
+ ),
+ `unexpected rows: ${projection.turnItems.map((item) => item.type).join(", ")}`,
+ );
+ // Both turns ran on one native session.
+ assert.lengthOf(projection.providerThreads, 1);
+}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/multi_turn/muse_transcript.ndjson b/apps/server/src/orchestration-v2/testkit/fixtures/multi_turn/muse_transcript.ndjson
new file mode 100644
index 0000000000000000000000000000000000000000..66eafcdb70063b8abf4ca61c524b157d2ff7961d
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/multi_turn/muse_transcript.ndjson
@@ -0,0 +1,53 @@
+{"type":"transcript_start","provider":"muse","protocol":"muse.msp-jsonl","version":"1.4.3-R5018.1","scenario":"multi_turn","metadata":{"generatedBy":"live-muse-recorder","model":"muse-spark-1.3-contributor","commandIds":[["01a11a6b-707e-7000-9bb5-4079c7772ad0","01a11a6b-707e-7001-b2f4-23db74e60097","01a11a6b-722c-7000-a73a-1d49a3a7f4c4","01a11a6b-97ec-7000-bd1b-d7afbea11045"]]}}
+{"type":"expect_outbound","label":"host_start","frame":{"type":"host_start","args":["serve","--trust-workspace","--disable-sandbox"]}}
+{"type":"expect_outbound","label":"initialize","frame":{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"clientInfo":{"name":"t3_code","title":"T3 Code","version":"1"},"capabilities":{"requestedCapabilities":["sessionMcp"]}}}}
+{"type":"emit_inbound","label":"response:initialize","frame":{"jsonrpc":"2.0","id":1,"result":{"serverInfo":{"name":"muse","version":"1.4.3"},"userAgent":"muse-build/1.4.3 (non-interactive; macos-aarch64; build 5c1bccecf3f125ff8fdc53f63558f6527ee70e56)","museHome":"~/.local/share/muse","platformFamily":"unix","platformOs":"macos","schema":{"version":1,"fingerprint":"sha256:4cb671082574037fc1070a136db7c0c8dc24e65e78cf3d209a10944ff9f9845f"},"grantedCapabilities":["sessionMcp"],"experimentalApi":false,"sessionDurability":"durable"}}}
+{"type":"expect_outbound","label":"initialized","frame":{"jsonrpc":"2.0","method":"initialized"}}
+{"type":"expect_outbound","label":"session/start","frame":{"jsonrpc":"2.0","id":2,"method":"session/start","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","workspaceRoot":"","modelId":"muse-spark-1.3-contributor","providerId":"meta","approvalMode":"allowAll","commandId":"01a11a6b-707e-7001-b2f4-23db74e60097"}}}
+{"type":"emit_inbound","label":"session/started","frame":{"jsonrpc":"2.0","method":"session/started","params":{"session":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6b-707e-7000-9bb5-4079c7772ad0/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:30:11.238412Z","updatedAt":"2026-10-08T07:30:11.238416Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"}},"emittedAtMs":1791444611408}}
+{"type":"emit_inbound","label":"response:session/start","frame":{"jsonrpc":"2.0","id":2,"result":{"session":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6b-707e-7000-9bb5-4079c7772ad0/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:30:11.238412Z","updatedAt":"2026-10-08T07:30:11.238416Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"},"viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:1"}}}
+{"type":"emit_inbound","label":"session/approvalModeChanged","frame":{"jsonrpc":"2.0","method":"session/approvalModeChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:1","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"37b19bd1-b212-4532-a0c9-a6677f303e26","sequence":5},"last":{"id":"37b19bd1-b212-4532-a0c9-a6677f303e26","sequence":5}},"mode":"allowAll","source":"approvalReconfigure","commandId":"01a11a6b-707e-7001-b2f4-23db74e60097","clientName":"t3_code"},"emittedAtMs":1791444611412}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":3,"method":"turn/start","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Respond with exactly: first fixture turn complete"}],"displayText":"Respond with exactly: first fixture turn complete","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4"}}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:2","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"2c530748-943b-4467-8473-da8b04c511c3","sequence":16},"last":{"id":"2c530748-943b-4467-8473-da8b04c511c3","sequence":16}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444611661}}
+{"type":"emit_inbound","label":"response:turn/start","frame":{"jsonrpc":"2.0","id":3,"result":{"commandId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","status":"accepted","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","startedNewTurn":true,"disposition":"started"}}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","status":"running","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:3"},"emittedAtMs":1791444611674}}
+{"type":"emit_inbound","label":"turn/started","frame":{"jsonrpc":"2.0","method":"turn/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:3","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"2be0c9b5-9dc4-48f0-9b86-06aef4de31f3","sequence":18},"last":{"id":"2be0c9b5-9dc4-48f0-9b86-06aef4de31f3","sequence":18}},"turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","commandId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4"},"emittedAtMs":1791444611675}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:4","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"2be0c9b5-9dc4-48f0-9b86-06aef4de31f3","sequence":18},"last":{"id":"2be0c9b5-9dc4-48f0-9b86-06aef4de31f3","sequence":18}},"item":{"itemId":"1b470279-ee8c-4c74-a298-f37184145584","kind":"userMessage","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":1,"status":"completed","recordedAt":"2026-10-08T07:30:11.66263Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRespond with exactly: first fixture turn complete","commandId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4"}},"emittedAtMs":1791444611675}}
+{"type":"emit_inbound","label":"item/updated","frame":{"jsonrpc":"2.0","method":"item/updated","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:5","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"31b500d6-40fc-4f4c-b097-6b7be8d77cee","sequence":20},"last":{"id":"31b500d6-40fc-4f4c-b097-6b7be8d77cee","sequence":20}},"item":{"itemId":"1b470279-ee8c-4c74-a298-f37184145584","kind":"userMessage","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:11.680942Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRespond with exactly: first fixture turn complete","displayText":"Respond with exactly: first fixture turn complete","commandId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4"}},"emittedAtMs":1791444611689}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:6","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"077780ea-0dc9-4d7a-879c-ee368f3adbe0","sequence":37},"last":{"id":"077780ea-0dc9-4d7a-879c-ee368f3adbe0","sequence":37}},"item":{"itemId":"077780ea-0dc9-4d7a-879c-ee368f3adbe0","kind":"reminderChild","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:30:11.790301Z","fallbackText":"Reminder child session","childSessionId":"c13379db-6761-40b4-a974-b0f1a58717aa","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6b-72ac-7972-a1df-b343b7804b38"}},"emittedAtMs":1791444611795}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:6.1","item":{"itemId":"f99b90e1-9d8b-4bf2-8e7a-e240e1cf9321","kind":"agentMessage","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":1,"status":"inProgress","text":""}},"emittedAtMs":1791444618068}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:6.2","itemId":"f99b90e1-9d8b-4bf2-8e7a-e240e1cf9321","field":"text","delta":"first fixture turn complete"},"emittedAtMs":1791444618068}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:7","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"0c18ac9d-46ab-4885-baa7-b50b4ec3c2d8","sequence":50},"last":{"id":"0c18ac9d-46ab-4885-baa7-b50b4ec3c2d8","sequence":50}},"item":{"itemId":"f99b90e1-9d8b-4bf2-8e7a-e240e1cf9321","kind":"agentMessage","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:18.068816Z","text":"first fixture turn complete"}},"emittedAtMs":1791444618081}}
+{"type":"emit_inbound","label":"session/tokenUsage","frame":{"jsonrpc":"2.0","method":"session/tokenUsage","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:8","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"240b3e7e-7785-4891-bf7d-4b286297ed19","sequence":53},"last":{"id":"240b3e7e-7785-4891-bf7d-4b286297ed19","sequence":53}},"turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","modelId":"muse-spark-1.3-contributor","usage":{"inputTokens":32352,"outputTokens":62,"cachedTokens":0,"cacheWriteTokens":0,"cacheReadTokens":0,"reasoningTokens":48},"promptTokens":32352,"totalTokens":32414,"durationMs":6281,"cumulative":{"promptTokens":32352,"outputTokens":62,"totalTokens":32414,"cost":{"usd":0.0032476000000000002,"partial":false}}},"emittedAtMs":1791444618168}}
+{"type":"emit_inbound","label":"session/contextUsage","frame":{"jsonrpc":"2.0","method":"session/contextUsage","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:9","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"240b3e7e-7785-4891-bf7d-4b286297ed19","sequence":53},"last":{"id":"240b3e7e-7785-4891-bf7d-4b286297ed19","sequence":53}},"windowTokens":1007997,"usedTokens":32414,"pressure":"normal"},"emittedAtMs":1791444618168}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:10","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"077780ea-0dc9-4d7a-879c-ee368f3adbe0","sequence":37},"last":{"id":"eff483ff-c9fa-42ef-98dd-dbe560a6735e","sequence":55}},"item":{"itemId":"077780ea-0dc9-4d7a-879c-ee368f3adbe0","kind":"reminderChild","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:18.175516Z","fallbackText":"Reminder child session","childSessionId":"c13379db-6761-40b4-a974-b0f1a58717aa","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6b-72ac-7972-a1df-b343b7804b38"}},"emittedAtMs":1791444618184}}
+{"type":"emit_inbound","label":"turn/foregroundCompleted","frame":{"jsonrpc":"2.0","method":"turn/foregroundCompleted","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:11","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"eae3e0ef-321e-486e-92ba-1f1d085b798e","sequence":64},"last":{"id":"eae3e0ef-321e-486e-92ba-1f1d085b798e","sequence":64}},"turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","blockingAgents":["goal-reminder","verify-reminder"]},"emittedAtMs":1791444618241}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:12","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"eae3e0ef-321e-486e-92ba-1f1d085b798e","sequence":64},"last":{"id":"eae3e0ef-321e-486e-92ba-1f1d085b798e","sequence":64}},"item":{"itemId":"eae3e0ef-321e-486e-92ba-1f1d085b798e","kind":"reminderChild","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:30:18.237899Z","fallbackText":"Reminder child session","childSessionId":"94e2a7d2-5cbe-49dd-abe4-7b65392f94e9","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6b-8bda-78d3-af04-0acebd6e6c79","childSessionLogPath":"subagent/94e2a7d2-5cbe-49dd-abe4-7b65392f94e9/session.jsonl","blocking":true}},"emittedAtMs":1791444618241}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:13","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"537e3fcf-361b-4956-ba2b-313a175666eb","sequence":71},"last":{"id":"537e3fcf-361b-4956-ba2b-313a175666eb","sequence":71}},"item":{"itemId":"537e3fcf-361b-4956-ba2b-313a175666eb","kind":"reminderChild","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:30:18.285435Z","fallbackText":"Reminder child session","childSessionId":"00dc6e2b-34de-4607-8156-9a033b3eed7d","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6b-8c06-7953-856f-7eaea4ce7c19","childSessionLogPath":"subagent/00dc6e2b-34de-4607-8156-9a033b3eed7d/session.jsonl","blocking":true}},"emittedAtMs":1791444618291}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:14","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"eae3e0ef-321e-486e-92ba-1f1d085b798e","sequence":64},"last":{"id":"6455ca1a-0901-4ba6-9eac-fef7d3bc1dd4","sequence":73}},"item":{"itemId":"eae3e0ef-321e-486e-92ba-1f1d085b798e","kind":"reminderChild","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:20.998775Z","fallbackText":"Reminder child session","childSessionId":"94e2a7d2-5cbe-49dd-abe4-7b65392f94e9","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6b-8bda-78d3-af04-0acebd6e6c79","childSessionLogPath":"subagent/94e2a7d2-5cbe-49dd-abe4-7b65392f94e9/session.jsonl","blocking":true}},"emittedAtMs":1791444621003}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:15","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"537e3fcf-361b-4956-ba2b-313a175666eb","sequence":71},"last":{"id":"3ccbc753-f023-4b12-94f2-d1477c0400d1","sequence":74}},"item":{"itemId":"537e3fcf-361b-4956-ba2b-313a175666eb","kind":"reminderChild","turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:21.003178Z","fallbackText":"Reminder child session","childSessionId":"00dc6e2b-34de-4607-8156-9a033b3eed7d","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6b-8c06-7953-856f-7eaea4ce7c19","childSessionLogPath":"subagent/00dc6e2b-34de-4607-8156-9a033b3eed7d/session.jsonl","blocking":true}},"emittedAtMs":1791444621008}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","status":"idle","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:16"},"emittedAtMs":1791444621046}}
+{"type":"emit_inbound","label":"turn/completed","frame":{"jsonrpc":"2.0","method":"turn/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:16","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"688a69c5-e353-4db9-bd8c-1beb033902ba","sequence":79},"last":{"id":"688a69c5-e353-4db9-bd8c-1beb033902ba","sequence":79}},"turnId":"01a11a6b-722c-7000-a73a-1d49a3a7f4c4","terminal":"completed","durationMs":9378,"timeToFirstTokenMs":6406},"emittedAtMs":1791444621047}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:17","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"36753b8a-26ce-4935-8127-bc9191cb328b","sequence":80},"last":{"id":"36753b8a-26ce-4935-8127-bc9191cb328b","sequence":80}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444621054}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":4,"method":"turn/start","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Respond with exactly: second fixture turn complete"}],"displayText":"Respond with exactly: second fixture turn complete","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11a6b-97ec-7000-bd1b-d7afbea11045"}}}
+{"type":"emit_inbound","label":"response:turn/start","frame":{"jsonrpc":"2.0","id":4,"result":{"commandId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","status":"accepted","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","startedNewTurn":true,"disposition":"started"}}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","status":"running","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:18"},"emittedAtMs":1791444621333}}
+{"type":"emit_inbound","label":"turn/started","frame":{"jsonrpc":"2.0","method":"turn/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:18","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"4aba96d5-f984-4bc0-bda4-7fb97f527686","sequence":87},"last":{"id":"4aba96d5-f984-4bc0-bda4-7fb97f527686","sequence":87}},"turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","commandId":"01a11a6b-97ec-7000-bd1b-d7afbea11045"},"emittedAtMs":1791444621334}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:19","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"4aba96d5-f984-4bc0-bda4-7fb97f527686","sequence":87},"last":{"id":"4aba96d5-f984-4bc0-bda4-7fb97f527686","sequence":87}},"item":{"itemId":"90719a5d-d2c1-46dc-ad4d-274adda02344","kind":"userMessage","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":1,"status":"completed","recordedAt":"2026-10-08T07:30:21.321391Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRespond with exactly: second fixture turn complete","commandId":"01a11a6b-97ec-7000-bd1b-d7afbea11045"}},"emittedAtMs":1791444621334}}
+{"type":"emit_inbound","label":"item/updated","frame":{"jsonrpc":"2.0","method":"item/updated","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:20","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"dc502e2c-d81c-4f0e-ad86-dd11d1368677","sequence":89},"last":{"id":"dc502e2c-d81c-4f0e-ad86-dd11d1368677","sequence":89}},"item":{"itemId":"90719a5d-d2c1-46dc-ad4d-274adda02344","kind":"userMessage","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:21.338944Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRespond with exactly: second fixture turn complete","displayText":"Respond with exactly: second fixture turn complete","commandId":"01a11a6b-97ec-7000-bd1b-d7afbea11045"}},"emittedAtMs":1791444621347}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:21","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"09cb4c2a-03c2-4089-ba12-8d5d31f7ea48","sequence":106},"last":{"id":"09cb4c2a-03c2-4089-ba12-8d5d31f7ea48","sequence":106}},"item":{"itemId":"09cb4c2a-03c2-4089-ba12-8d5d31f7ea48","kind":"reminderChild","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:30:21.446966Z","fallbackText":"Reminder child session","childSessionId":"cd97261a-3ea9-480f-9e54-5e59bb077da2","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6b-9869-7061-a4f3-42daa3e3a8f1"}},"emittedAtMs":1791444621455}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:21.1","item":{"itemId":"2de26c0d-26b4-4533-8810-918ee44fcd82","kind":"agentMessage","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":1,"status":"inProgress","text":""}},"emittedAtMs":1791444623127}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:21.2","itemId":"2de26c0d-26b4-4533-8810-918ee44fcd82","field":"text","delta":"second fixture turn complete"},"emittedAtMs":1791444623127}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:22","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"2e35b0c3-8b4d-4e3d-88d2-fb58b99b0d59","sequence":119},"last":{"id":"2e35b0c3-8b4d-4e3d-88d2-fb58b99b0d59","sequence":119}},"item":{"itemId":"2de26c0d-26b4-4533-8810-918ee44fcd82","kind":"agentMessage","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:23.12738Z","text":"second fixture turn complete"}},"emittedAtMs":1791444623132}}
+{"type":"emit_inbound","label":"session/tokenUsage","frame":{"jsonrpc":"2.0","method":"session/tokenUsage","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:23","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"f0e660f4-ea75-431f-9c57-c43f6e04e012","sequence":122},"last":{"id":"f0e660f4-ea75-431f-9c57-c43f6e04e012","sequence":122}},"turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","modelId":"muse-spark-1.3-contributor","usage":{"inputTokens":32743,"outputTokens":26,"cachedTokens":32241,"cacheWriteTokens":0,"cacheReadTokens":32241,"reasoningTokens":12},"promptTokens":32743,"totalTokens":32769,"durationMs":1642,"cumulative":{"promptTokens":65095,"outputTokens":88,"totalTokens":65183,"cacheReadTokens":32241,"cost":{"usd":0.0033674819999999998,"partial":false}}},"emittedAtMs":1791444623160}}
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+{"type":"emit_inbound","label":"turn/foregroundCompleted","frame":{"jsonrpc":"2.0","method":"turn/foregroundCompleted","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:25","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"b4657505-5ef7-470b-b9af-88d872261a33","sequence":129},"last":{"id":"b4657505-5ef7-470b-b9af-88d872261a33","sequence":129}},"turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","blockingAgents":["goal-reminder","verify-reminder"]},"emittedAtMs":1791444623204}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:26","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"b4657505-5ef7-470b-b9af-88d872261a33","sequence":129},"last":{"id":"b4657505-5ef7-470b-b9af-88d872261a33","sequence":129}},"item":{"itemId":"b4657505-5ef7-470b-b9af-88d872261a33","kind":"reminderChild","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:30:23.200687Z","fallbackText":"Reminder child session","childSessionId":"13169106-f345-4e9b-9673-51ec8221d216","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6b-9f40-7a91-8ac4-d21e9ceceaee","childSessionLogPath":"subagent/13169106-f345-4e9b-9673-51ec8221d216/session.jsonl","blocking":true}},"emittedAtMs":1791444623204}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:27","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"396f33da-f205-4062-9082-0a24038b9156","sequence":136},"last":{"id":"396f33da-f205-4062-9082-0a24038b9156","sequence":136}},"item":{"itemId":"396f33da-f205-4062-9082-0a24038b9156","kind":"reminderChild","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:30:23.246353Z","fallbackText":"Reminder child session","childSessionId":"4a318cd8-2669-4e76-9202-ee12d5858e0a","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6b-9f69-73e0-ba18-a0d873a1c0dd","childSessionLogPath":"subagent/4a318cd8-2669-4e76-9202-ee12d5858e0a/session.jsonl","blocking":true}},"emittedAtMs":1791444623252}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:28","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"09cb4c2a-03c2-4089-ba12-8d5d31f7ea48","sequence":106},"last":{"id":"f0f89d11-a055-4155-ace8-42a860a181dd","sequence":138}},"item":{"itemId":"09cb4c2a-03c2-4089-ba12-8d5d31f7ea48","kind":"reminderChild","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:25.683124Z","fallbackText":"Reminder child session","childSessionId":"cd97261a-3ea9-480f-9e54-5e59bb077da2","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6b-9869-7061-a4f3-42daa3e3a8f1"}},"emittedAtMs":1791444625687}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:29","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"b4657505-5ef7-470b-b9af-88d872261a33","sequence":129},"last":{"id":"76d251d0-b4c4-4c11-a080-8bdf380db643","sequence":139}},"item":{"itemId":"b4657505-5ef7-470b-b9af-88d872261a33","kind":"reminderChild","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:25.687498Z","fallbackText":"Reminder child session","childSessionId":"13169106-f345-4e9b-9673-51ec8221d216","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6b-9f40-7a91-8ac4-d21e9ceceaee","childSessionLogPath":"subagent/13169106-f345-4e9b-9673-51ec8221d216/session.jsonl","blocking":true}},"emittedAtMs":1791444625692}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:30","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"396f33da-f205-4062-9082-0a24038b9156","sequence":136},"last":{"id":"b10fa520-7ed1-487e-86ac-92927f5dc02b","sequence":140}},"item":{"itemId":"396f33da-f205-4062-9082-0a24038b9156","kind":"reminderChild","turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","revision":2,"status":"completed","recordedAt":"2026-10-08T07:30:25.692766Z","fallbackText":"Reminder child session","childSessionId":"4a318cd8-2669-4e76-9202-ee12d5858e0a","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6b-9f69-73e0-ba18-a0d873a1c0dd","childSessionLogPath":"subagent/4a318cd8-2669-4e76-9202-ee12d5858e0a/session.jsonl","blocking":true}},"emittedAtMs":1791444625704}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","status":"idle","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:31"},"emittedAtMs":1791444625758}}
+{"type":"emit_inbound","label":"turn/completed","frame":{"jsonrpc":"2.0","method":"turn/completed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:31","sourceRange":{"stream":{"kind":"session","id":"01a11a6b-707e-7000-9bb5-4079c7772ad0"},"first":{"id":"aacefdf9-52b1-4d5d-8648-58ec64cc2925","sequence":148},"last":{"id":"aacefdf9-52b1-4d5d-8648-58ec64cc2925","sequence":148}},"turnId":"01a11a6b-97ec-7000-bd1b-d7afbea11045","terminal":"completed","durationMs":4428,"timeToFirstTokenMs":1805},"emittedAtMs":1791444625759}}
+{"type":"emit_inbound","label":"session/closed","frame":{"jsonrpc":"2.0","method":"session/closed","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","reason":"hostShutdown","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:31"},"emittedAtMs":1791444625952}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6b-707e-7000-9bb5-4079c7772ad0","status":"notLoaded","viewCursor":"v:01a11a6b-707e-7000-9bb5-4079c7772ad0:31"},"emittedAtMs":1791444625952}}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/input.ts b/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/input.ts
new file mode 100644
index 0000000000000000000000000000000000000000..b4b9015af934b89ed6bb81e9ce73756f8c12034b
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/input.ts
@@ -0,0 +1,27 @@
+import type { OrchestratorFixtureInput } from "../shared.ts";
+
+export const MUSE_PERMISSION_APPROVED_FILE = "muse-approved.txt";
+export const MUSE_PERMISSION_DECLINED_FILE = "muse-declined.txt";
+
+/**
+ * A Supervised Muse thread asks before each shell command. The first command
+ * is approved and runs; the second is declined through Muse's Reject choice,
+ * because Muse shell approvals offer no plain "deny".
+ */
+export function musePermissionInput(): OrchestratorFixtureInput {
+ return {
+ runtimeMode: "approval-required",
+ steps: [
+ {
+ type: "message",
+ text: `Run the shell command \`touch ${MUSE_PERMISSION_APPROVED_FILE}\` with your shell tool, then reply DONE.`,
+ },
+ { type: "approve_next_runtime_request" },
+ {
+ type: "message",
+ text: `Run the shell command \`touch ${MUSE_PERMISSION_DECLINED_FILE}\` with your shell tool once. If it is rejected, do not retry; reply REJECTED.`,
+ },
+ { type: "approve_next_runtime_request", decision: "decline" },
+ ],
+ };
+}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/muse_transcript.ndjson b/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/muse_transcript.ndjson
new file mode 100644
index 0000000000000000000000000000000000000000..a9d154ca13f3688c672161afe5ba8432b8771ff4
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/muse_transcript.ndjson
@@ -0,0 +1,78 @@
+{"type":"transcript_start","provider":"muse","protocol":"muse.msp-jsonl","version":"1.4.3-R5018.1","scenario":"muse_permission","metadata":{"generatedBy":"live-muse-recorder","model":"muse-spark-1.3-contributor","commandIds":[["01a11a6d-39bb-7000-8c93-4594c98e6a11","01a11a6d-39bb-7001-923e-425cc6129ce7","01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","01a11a6d-4759-7000-9d91-5e7fcfc6d4c4","01a11a6d-8566-7000-8ad1-6269ac187a29","01a11a6d-9084-7000-8656-8da54f8dd14b"]]}}
+{"type":"expect_outbound","label":"host_start","frame":{"type":"host_start","args":["serve","--trust-workspace"]}}
+{"type":"expect_outbound","label":"initialize","frame":{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"clientInfo":{"name":"t3_code","title":"T3 Code","version":"1"},"capabilities":{"requestedCapabilities":["sessionMcp"]}}}}
+{"type":"emit_inbound","label":"response:initialize","frame":{"jsonrpc":"2.0","id":1,"result":{"serverInfo":{"name":"muse","version":"1.4.3"},"userAgent":"muse-build/1.4.3 (non-interactive; macos-aarch64; build 5c1bccecf3f125ff8fdc53f63558f6527ee70e56)","museHome":"~/.local/share/muse","platformFamily":"unix","platformOs":"macos","schema":{"version":1,"fingerprint":"sha256:4cb671082574037fc1070a136db7c0c8dc24e65e78cf3d209a10944ff9f9845f"},"grantedCapabilities":["sessionMcp"],"experimentalApi":false,"sessionDurability":"durable"}}}
+{"type":"expect_outbound","label":"initialized","frame":{"jsonrpc":"2.0","method":"initialized"}}
+{"type":"expect_outbound","label":"session/start","frame":{"jsonrpc":"2.0","id":2,"method":"session/start","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","workspaceRoot":"","modelId":"muse-spark-1.3-contributor","providerId":"meta","approvalMode":"promptUnmatched","commandId":"01a11a6d-39bb-7001-923e-425cc6129ce7"}}}
+{"type":"emit_inbound","label":"session/started","frame":{"jsonrpc":"2.0","method":"session/started","params":{"session":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6d-39bb-7000-8c93-4594c98e6a11/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:32:08.30084Z","updatedAt":"2026-10-08T07:32:08.300844Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"promptUnmatched","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"}},"emittedAtMs":1791444728496}}
+{"type":"emit_inbound","label":"response:session/start","frame":{"jsonrpc":"2.0","id":2,"result":{"session":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6d-39bb-7000-8c93-4594c98e6a11/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:32:08.30084Z","updatedAt":"2026-10-08T07:32:08.300844Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"promptUnmatched","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"},"viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:1"}}}
+{"type":"emit_inbound","label":"session/approvalModeChanged","frame":{"jsonrpc":"2.0","method":"session/approvalModeChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:1","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"b05fb8ec-7b58-4cf7-a369-379938395230","sequence":5},"last":{"id":"b05fb8ec-7b58-4cf7-a369-379938395230","sequence":5}},"mode":"promptUnmatched","source":"approvalReconfigure","commandId":"01a11a6d-39bb-7001-923e-425cc6129ce7","clientName":"t3_code"},"emittedAtMs":1791444728501}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":3,"method":"turn/start","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Run the shell command `touch muse-approved.txt` with your shell tool, then reply DONE."}],"displayText":"Run the shell command `touch muse-approved.txt` with your shell tool, then reply DONE.","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6"}}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:2","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"6159e84a-ae1e-4fae-ae8b-49f41ca34509","sequence":16},"last":{"id":"6159e84a-ae1e-4fae-ae8b-49f41ca34509","sequence":16}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444728769}}
+{"type":"emit_inbound","label":"response:turn/start","frame":{"jsonrpc":"2.0","id":3,"result":{"commandId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","status":"accepted","turnId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","startedNewTurn":true,"disposition":"started"}}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","status":"running","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:3"},"emittedAtMs":1791444728783}}
+{"type":"emit_inbound","label":"turn/started","frame":{"jsonrpc":"2.0","method":"turn/started","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:3","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"09218c3a-88fd-4bc8-ab45-d1aa69bea95a","sequence":18},"last":{"id":"09218c3a-88fd-4bc8-ab45-d1aa69bea95a","sequence":18}},"turnId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","commandId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6"},"emittedAtMs":1791444728783}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:4","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"09218c3a-88fd-4bc8-ab45-d1aa69bea95a","sequence":18},"last":{"id":"09218c3a-88fd-4bc8-ab45-d1aa69bea95a","sequence":18}},"item":{"itemId":"dde9573b-650f-434b-ab99-60cfc820a0a5","kind":"userMessage","turnId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","revision":1,"status":"completed","recordedAt":"2026-10-08T07:32:08.769894Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRun the shell command `touch muse-approved.txt` with your shell tool, then reply DONE.","commandId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6"}},"emittedAtMs":1791444728784}}
+{"type":"emit_inbound","label":"item/updated","frame":{"jsonrpc":"2.0","method":"item/updated","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:5","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"76c57706-1378-4167-8bbf-f76d959804e8","sequence":20},"last":{"id":"76c57706-1378-4167-8bbf-f76d959804e8","sequence":20}},"item":{"itemId":"dde9573b-650f-434b-ab99-60cfc820a0a5","kind":"userMessage","turnId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:08.791728Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRun the shell command `touch muse-approved.txt` with your shell tool, then reply DONE.","displayText":"Run the shell command `touch muse-approved.txt` with your shell tool, then reply DONE.","commandId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6"}},"emittedAtMs":1791444728800}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:6","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"29180105-84c4-4f9e-8bfd-003392b93b73","sequence":38},"last":{"id":"29180105-84c4-4f9e-8bfd-003392b93b73","sequence":38}},"item":{"itemId":"29180105-84c4-4f9e-8bfd-003392b93b73","kind":"reminderChild","turnId":"01a11a6d-3b9f-7000-b6ad-ab05e6b973b6","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:32:08.905989Z","fallbackText":"Reminder child session","childSessionId":"7c9485f9-26aa-4b56-8ca2-f36cb9cfb8c4","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6d-3c27-73f2-8c27-cd06a3b7dadf"}},"emittedAtMs":1791444728910}}
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+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:24","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"1e4afe30-d924-444c-8665-5e763f524e70","sequence":121},"last":{"id":"1e4afe30-d924-444c-8665-5e763f524e70","sequence":121}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444747394}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":5,"method":"turn/start","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Run the shell command `touch muse-declined.txt` with your shell tool once. If it is rejected, do not retry; reply REJECTED."}],"displayText":"Run the shell command `touch muse-declined.txt` with your shell tool once. If it is rejected, do not retry; reply REJECTED.","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11a6d-8566-7000-8ad1-6269ac187a29"}}}
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+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:26","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"4a1cf90d-7457-448d-a2b5-d82108636b3b","sequence":128},"last":{"id":"4a1cf90d-7457-448d-a2b5-d82108636b3b","sequence":128}},"item":{"itemId":"27473708-71e0-4d3c-811c-a8bae6bbaa3b","kind":"userMessage","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":1,"status":"completed","recordedAt":"2026-10-08T07:32:27.650913Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRun the shell command `touch muse-declined.txt` with your shell tool once. If it is rejected, do not retry; reply REJECTED.","commandId":"01a11a6d-8566-7000-8ad1-6269ac187a29"}},"emittedAtMs":1791444747660}}
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+{"type":"expect_outbound","label":"reply:approval/request","frame":{"jsonrpc":"2.0","id":2,"result":{}}}
+{"type":"expect_outbound","label":"approval/decide","frame":{"jsonrpc":"2.0","id":6,"method":"approval/decide","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","approvalId":"01a11a6d-9054-70c0-bf68-3ec59d37fbf8","requirementId":{"approvalId":"01a11a6d-9054-70c0-bf68-3ec59d37fbf8","sourceIndex":0},"choiceId":"abort","commandId":"01a11a6d-9084-7000-8656-8da54f8dd14b"}}}
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+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","status":"running","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:32"},"emittedAtMs":1791444750695}}
+{"type":"emit_inbound","label":"approval/resolved","frame":{"jsonrpc":"2.0","method":"approval/resolved","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:32","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"16584418-fbd9-4cbe-8b78-9be023fd834b","sequence":172},"last":{"id":"16584418-fbd9-4cbe-8b78-9be023fd834b","sequence":172}},"approvalId":"01a11a6d-9054-70c0-bf68-3ec59d37fbf8","itemId":"01a11a6d-9054-70c0-bf68-3ec59d37fbf8","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","decision":"abort","policyResult":"deny","resolvedBy":"user","decidedByCommandId":"01a11a6d-9084-7000-8656-8da54f8dd14b","decidedAt":"2026-10-08T07:32:30.550581Z","stageEvidence":[{"requirementId":{"approvalId":"01a11a6d-9054-70c0-bf68-3ec59d37fbf8","sourceIndex":0},"position":1,"totalStages":1,"argv":["touch","muse-declined.txt"],"resolution":{"kind":"unresolved"}}]},"emittedAtMs":1791444750695}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:33","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"3b28955d-a87a-4acb-97e9-14cad87fd41f","sequence":148},"last":{"id":"f958c500-026e-448e-85ee-d63d067b97b0","sequence":178}},"item":{"itemId":"3b28955d-a87a-4acb-97e9-14cad87fd41f","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:30.626072Z","fallbackText":"Reminder child session","childSessionId":"efd21bf1-4fd1-49a2-9c55-91b7fc099765","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6d-85ed-7b91-8d91-c4ce76b6dfef"}},"emittedAtMs":1791444750695}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:34","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"9f1a862f-f7d8-474d-82a9-a26e4e990ed4","sequence":187},"last":{"id":"9f1a862f-f7d8-474d-82a9-a26e4e990ed4","sequence":187}},"item":{"itemId":"9f1a862f-f7d8-474d-82a9-a26e4e990ed4","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:32:30.717186Z","fallbackText":"Reminder child session","childSessionId":"05f14547-b380-4b57-b221-aa29030ad371","reminderAgentId":"skill-reminder","generationId":2,"taskId":"01a11a6d-9141-7db1-9354-65390e714cf7"}},"emittedAtMs":1791444750725}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:34.1","item":{"itemId":"05a64d05-5be4-48c4-938e-70db3ba23f0a","kind":"agentMessage","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":1,"status":"inProgress","text":""}},"emittedAtMs":1791444751873}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:34.2","itemId":"05a64d05-5be4-48c4-938e-70db3ba23f0a","field":"text","delta":"REJECTED"},"emittedAtMs":1791444751873}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:35","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"3cce5762-21bb-481b-8721-dc14282043db","sequence":200},"last":{"id":"3cce5762-21bb-481b-8721-dc14282043db","sequence":200}},"item":{"itemId":"05a64d05-5be4-48c4-938e-70db3ba23f0a","kind":"agentMessage","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:31.873359Z","text":"REJECTED"}},"emittedAtMs":1791444751886}}
+{"type":"emit_inbound","label":"session/tokenUsage","frame":{"jsonrpc":"2.0","method":"session/tokenUsage","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:36","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"1bfc5fdd-6cd3-4a66-857d-2d016225b861","sequence":203},"last":{"id":"1bfc5fdd-6cd3-4a66-857d-2d016225b861","sequence":203}},"turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","modelId":"muse-spark-1.3-contributor","usage":{"inputTokens":33631,"outputTokens":60,"cachedTokens":33393,"cacheWriteTokens":0,"cacheReadTokens":33393,"reasoningTokens":47},"promptTokens":33631,"totalTokens":33691,"durationMs":1136,"cumulative":{"promptTokens":132676,"outputTokens":598,"totalTokens":133274,"cacheReadTokens":98899,"cost":{"usd":0.0036950980000000004,"partial":false}}},"emittedAtMs":1791444751969}}
+{"type":"emit_inbound","label":"session/contextUsage","frame":{"jsonrpc":"2.0","method":"session/contextUsage","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:37","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"1bfc5fdd-6cd3-4a66-857d-2d016225b861","sequence":203},"last":{"id":"1bfc5fdd-6cd3-4a66-857d-2d016225b861","sequence":203}},"windowTokens":1007997,"usedTokens":33691,"pressure":"normal"},"emittedAtMs":1791444751969}}
+{"type":"emit_inbound","label":"turn/foregroundCompleted","frame":{"jsonrpc":"2.0","method":"turn/foregroundCompleted","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:38","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","sequence":210},"last":{"id":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","sequence":210}},"turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","blockingAgents":["goal-reminder","verify-reminder"]},"emittedAtMs":1791444752056}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:39","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","sequence":210},"last":{"id":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","sequence":210}},"item":{"itemId":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:32:32.047012Z","fallbackText":"Reminder child session","childSessionId":"cf2b0619-b94a-4c1c-b855-bdabee89f7fc","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6d-966b-7890-9192-6836d3de999c","childSessionLogPath":"subagent/cf2b0619-b94a-4c1c-b855-bdabee89f7fc/session.jsonl","blocking":true}},"emittedAtMs":1791444752056}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:40","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"36e755a6-30e8-4798-a039-5d89a4c8d180","sequence":217},"last":{"id":"36e755a6-30e8-4798-a039-5d89a4c8d180","sequence":217}},"item":{"itemId":"36e755a6-30e8-4798-a039-5d89a4c8d180","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:32:32.128289Z","fallbackText":"Reminder child session","childSessionId":"95821451-6876-43e7-ae4c-25c75316a3e3","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6d-96c9-74b1-8e7e-505b70ec091c","childSessionLogPath":"subagent/95821451-6876-43e7-ae4c-25c75316a3e3/session.jsonl","blocking":true}},"emittedAtMs":1791444752140}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:41","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"9f1a862f-f7d8-474d-82a9-a26e4e990ed4","sequence":187},"last":{"id":"0bbdeaee-18a5-4f15-8352-3c94431ecda0","sequence":219}},"item":{"itemId":"9f1a862f-f7d8-474d-82a9-a26e4e990ed4","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:44.514746Z","fallbackText":"Reminder child session","childSessionId":"05f14547-b380-4b57-b221-aa29030ad371","reminderAgentId":"skill-reminder","generationId":2,"taskId":"01a11a6d-9141-7db1-9354-65390e714cf7"}},"emittedAtMs":1791444764520}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:42","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","sequence":210},"last":{"id":"a9645983-96c4-4ef9-89e6-466caa69bb41","sequence":220}},"item":{"itemId":"03d4ef4d-7bc8-482b-9cc7-d6bbcd573a95","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:44.520067Z","fallbackText":"Reminder child session","childSessionId":"cf2b0619-b94a-4c1c-b855-bdabee89f7fc","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6d-966b-7890-9192-6836d3de999c","childSessionLogPath":"subagent/cf2b0619-b94a-4c1c-b855-bdabee89f7fc/session.jsonl","blocking":true}},"emittedAtMs":1791444764524}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:43","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"36e755a6-30e8-4798-a039-5d89a4c8d180","sequence":217},"last":{"id":"99de4c3b-df37-4b82-9b3c-095173ebe05c","sequence":221}},"item":{"itemId":"36e755a6-30e8-4798-a039-5d89a4c8d180","kind":"reminderChild","turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:44.524269Z","fallbackText":"Reminder child session","childSessionId":"95821451-6876-43e7-ae4c-25c75316a3e3","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6d-96c9-74b1-8e7e-505b70ec091c","childSessionLogPath":"subagent/95821451-6876-43e7-ae4c-25c75316a3e3/session.jsonl","blocking":true}},"emittedAtMs":1791444764535}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","status":"idle","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:44"},"emittedAtMs":1791444764581}}
+{"type":"emit_inbound","label":"turn/completed","frame":{"jsonrpc":"2.0","method":"turn/completed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:44","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-39bb-7000-8c93-4594c98e6a11"},"first":{"id":"67ced310-34c3-44ad-9b6c-619649d52af2","sequence":229},"last":{"id":"67ced310-34c3-44ad-9b6c-619649d52af2","sequence":229}},"turnId":"01a11a6d-8566-7000-8ad1-6269ac187a29","terminal":"completed","durationMs":16926,"timeToFirstTokenMs":4222},"emittedAtMs":1791444764582}}
+{"type":"emit_inbound","label":"session/closed","frame":{"jsonrpc":"2.0","method":"session/closed","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","reason":"hostShutdown","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:44"},"emittedAtMs":1791444764791}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-39bb-7000-8c93-4594c98e6a11","status":"notLoaded","viewCursor":"v:01a11a6d-39bb-7000-8c93-4594c98e6a11:44"},"emittedAtMs":1791444764791}}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/output.ts b/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/output.ts
new file mode 100644
index 0000000000000000000000000000000000000000..bb9d2f6ebb8a78c583acab00f46104de54e75c38
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/muse_permission/output.ts
@@ -0,0 +1,84 @@
+import { assert } from "@effect/vitest";
+import type { ProviderReplayTranscript } from "@t3tools/contracts";
+
+import type { OrchestratorV2ScenarioResult } from "../../OrchestratorScenario.ts";
+import {
+ assertBaseProjection,
+ assertSemanticProjectionIntegrity,
+ assertVisibleTurnItemsMirrorLocalTurnItems,
+ projectionFor,
+} from "../shared.ts";
+import { MUSE_PERMISSION_APPROVED_FILE, MUSE_PERMISSION_DECLINED_FILE } from "./input.ts";
+
+/**
+ * Supervised: both commands ask first. The approved one runs. Decline answers
+ * with Muse's Reject (`abort`) choice, so the command never runs and the turn
+ * still settles instead of waiting on an answer Muse cannot accept.
+ */
+export function assertMusePermissionOutput(
+ result: OrchestratorV2ScenarioResult,
+ transcript: ProviderReplayTranscript,
+) {
+ const projection = projectionFor(result, transcript.scenario);
+ assertSemanticProjectionIntegrity(projection);
+ assertVisibleTurnItemsMirrorLocalTurnItems(projection);
+ assert.lengthOf(projection.runs, 2);
+ assert.equal(projection.runs[0]?.status, "completed");
+ assert.include(["completed", "interrupted"], projection.runs[1]?.status);
+ assertBaseProjection({
+ result,
+ transcript,
+ runCount: 2,
+ runStatuses: projection.runs.map((run) => run.status),
+ });
+
+ const requests = projection.runtimeRequests.toSorted((left, right) =>
+ left.createdAt < right.createdAt ? -1 : 1,
+ );
+ assert.deepEqual(
+ requests.map((request) => [request.kind, request.status, request.decision]),
+ [
+ ["command", "resolved", "accept"],
+ ["command", "resolved", "decline"],
+ ],
+ );
+ const approval = projection.turnItems.find((item) => item.type === "approval_request");
+ const options = approval?.type === "approval_request" ? (approval.options ?? []) : [];
+ // Reject is offered as the decline button, not hidden behind "cancel".
+ assert.includeDeepMembers(
+ options.map((option) => option.decision),
+ ["accept", "decline"],
+ );
+ assert.notInclude(
+ options.map((option) => option.decision),
+ "cancel",
+ );
+
+ const decisions = transcript.entries.flatMap((entry) =>
+ entry.type === "expect_outbound" &&
+ typeof entry.frame === "object" &&
+ entry.frame !== null &&
+ Reflect.get(entry.frame, "method") === "approval/decide"
+ ? [Reflect.get(Reflect.get(entry.frame, "params") as object, "choiceId")]
+ : [],
+ );
+ assert.deepEqual(decisions, ["allow_once", "abort"]);
+
+ const shells = projection.turnItems.filter((item) => item.type === "command_execution");
+ assert.isTrue(
+ shells.some(
+ (item) =>
+ item.type === "command_execution" &&
+ item.input.includes(MUSE_PERMISSION_APPROVED_FILE) &&
+ item.status === "completed",
+ ),
+ );
+ assert.isFalse(
+ shells.some(
+ (item) =>
+ item.type === "command_execution" &&
+ item.input.includes(MUSE_PERMISSION_DECLINED_FILE) &&
+ item.status === "completed",
+ ),
+ );
+}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/input.ts b/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/input.ts
new file mode 100644
index 0000000000000000000000000000000000000000..9610fbb53f37012302cd278907acba14fa4bf4ed
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/input.ts
@@ -0,0 +1,19 @@
+import type { OrchestratorFixtureInput } from "../shared.ts";
+
+const MUSE_WORKFLOW_PROMPT =
+ "Use your workflow tool to launch a workflow with exactly TWO agents: one labeled 'ping' that replies with the word PING, and one labeled 'pong' that replies with the word PONG. Launch it and end your turn; do not wait for it.";
+
+/**
+ * Muse ends the turn as soon as the workflow launches, keeps running it in the
+ * background, then starts a turn on its own to report the result. T3 shows each
+ * workflow agent as a native subagent, and runs Muse's report turn as a
+ * continuation (run 2) instead of dropping it.
+ */
+export function museWorkflowInput(): OrchestratorFixtureInput {
+ return {
+ steps: [
+ { type: "message", text: MUSE_WORKFLOW_PROMPT },
+ { type: "await_run_status", targetRunIndex: 2, status: "completed" },
+ ],
+ };
+}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/muse_transcript.ndjson b/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/muse_transcript.ndjson
new file mode 100644
index 0000000000000000000000000000000000000000..6436631bdb36ed91baa586d25fd9d45936d968a9
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/muse_transcript.ndjson
@@ -0,0 +1,62 @@
+{"type":"transcript_start","provider":"muse","protocol":"muse.msp-jsonl","version":"1.4.3-R5018.1","scenario":"muse_workflow","metadata":{"generatedBy":"live-muse-recorder","model":"muse-spark-1.3-contributor","commandIds":[["01a11aab-8cb6-7000-9205-29210d8cba14","01a11aab-8cb6-7001-b163-263bd1ffce65","01a11aab-8ee7-7000-b203-c4307a1525c0"]]}}
+{"type":"expect_outbound","label":"host_start","frame":{"type":"host_start","args":["serve","--trust-workspace","--disable-sandbox"]}}
+{"type":"expect_outbound","label":"initialize","frame":{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"clientInfo":{"name":"t3_code","title":"T3 Code","version":"1"},"capabilities":{"requestedCapabilities":["sessionMcp"]}}}}
+{"type":"emit_inbound","label":"response:initialize","frame":{"jsonrpc":"2.0","id":1,"result":{"serverInfo":{"name":"muse","version":"1.4.3"},"userAgent":"muse-build/1.4.3 (non-interactive; macos-aarch64; build 5c1bccecf3f125ff8fdc53f63558f6527ee70e56)","museHome":"~/.local/share/muse","platformFamily":"unix","platformOs":"macos","schema":{"version":1,"fingerprint":"sha256:4cb671082574037fc1070a136db7c0c8dc24e65e78cf3d209a10944ff9f9845f"},"grantedCapabilities":["sessionMcp"],"experimentalApi":false,"sessionDurability":"durable"}}}
+{"type":"expect_outbound","label":"initialized","frame":{"jsonrpc":"2.0","method":"initialized"}}
+{"type":"expect_outbound","label":"session/start","frame":{"jsonrpc":"2.0","id":2,"method":"session/start","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","workspaceRoot":"","modelId":"muse-spark-1.3-contributor","providerId":"meta","approvalMode":"allowAll","commandId":"01a11aab-8cb6-7001-b163-263bd1ffce65"}}}
+{"type":"emit_inbound","label":"session/started","frame":{"jsonrpc":"2.0","method":"session/started","params":{"session":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","path":"~/.local/share/muse/sessions/2026/10/08/01a11aab-8cb6-7000-9205-29210d8cba14/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T08:40:12.772884Z","updatedAt":"2026-10-08T08:40:12.772888Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"}},"emittedAtMs":1791448812989}}
+{"type":"emit_inbound","label":"response:session/start","frame":{"jsonrpc":"2.0","id":2,"result":{"session":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","path":"~/.local/share/muse/sessions/2026/10/08/01a11aab-8cb6-7000-9205-29210d8cba14/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T08:40:12.772884Z","updatedAt":"2026-10-08T08:40:12.772888Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"},"viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:1"}}}
+{"type":"emit_inbound","label":"session/approvalModeChanged","frame":{"jsonrpc":"2.0","method":"session/approvalModeChanged","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:1","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"a765a019-4134-4dcc-9670-bb417f56dd73","sequence":5},"last":{"id":"a765a019-4134-4dcc-9670-bb417f56dd73","sequence":5}},"mode":"allowAll","source":"approvalReconfigure","commandId":"01a11aab-8cb6-7001-b163-263bd1ffce65","clientName":"t3_code"},"emittedAtMs":1791448812999}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":3,"method":"turn/start","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Use your workflow tool to launch a workflow with exactly TWO agents: one labeled 'ping' that replies with the word PING, and one labeled 'pong' that replies with the word PONG. Launch it and end your turn; do not wait for it."}],"displayText":"Use your workflow tool to launch a workflow with exactly TWO agents: one labeled 'ping' that replies with the word PING, and one labeled 'pong' that replies with the word PONG. Launch it and end your turn; do not wait for it.","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11aab-8ee7-7000-b203-c4307a1525c0"}}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:2","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"6ff72c4f-0c16-4715-ac9e-6f97c409eabd","sequence":16},"last":{"id":"6ff72c4f-0c16-4715-ac9e-6f97c409eabd","sequence":16}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791448813318}}
+{"type":"emit_inbound","label":"response:turn/start","frame":{"jsonrpc":"2.0","id":3,"result":{"commandId":"01a11aab-8ee7-7000-b203-c4307a1525c0","status":"accepted","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","startedNewTurn":true,"disposition":"started"}}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","status":"running","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:3"},"emittedAtMs":1791448813331}}
+{"type":"emit_inbound","label":"turn/started","frame":{"jsonrpc":"2.0","method":"turn/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:3","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"eb897568-08d7-4349-b89d-640263d9967f","sequence":18},"last":{"id":"eb897568-08d7-4349-b89d-640263d9967f","sequence":18}},"turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","commandId":"01a11aab-8ee7-7000-b203-c4307a1525c0"},"emittedAtMs":1791448813332}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:4","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"eb897568-08d7-4349-b89d-640263d9967f","sequence":18},"last":{"id":"eb897568-08d7-4349-b89d-640263d9967f","sequence":18}},"item":{"itemId":"07018014-fee3-4734-9a92-51d894dc405b","kind":"userMessage","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":1,"status":"completed","recordedAt":"2026-10-08T08:40:13.319673Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nUse your workflow tool to launch a workflow with exactly TWO agents: one labeled 'ping' that replies with the word PING, and one labeled 'pong' that replies with the word PONG. Launch it and end your turn; do not wait for it.","commandId":"01a11aab-8ee7-7000-b203-c4307a1525c0"}},"emittedAtMs":1791448813332}}
+{"type":"emit_inbound","label":"item/updated","frame":{"jsonrpc":"2.0","method":"item/updated","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:5","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"ffd04d53-2202-490a-8bbf-d70ea59fd489","sequence":20},"last":{"id":"ffd04d53-2202-490a-8bbf-d70ea59fd489","sequence":20}},"item":{"itemId":"07018014-fee3-4734-9a92-51d894dc405b","kind":"userMessage","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:13.338821Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nUse your workflow tool to launch a workflow with exactly TWO agents: one labeled 'ping' that replies with the word PING, and one labeled 'pong' that replies with the word PONG. Launch it and end your turn; do not wait for it.","displayText":"Use your workflow tool to launch a workflow with exactly TWO agents: one labeled 'ping' that replies with the word PING, and one labeled 'pong' that replies with the word PONG. Launch it and end your turn; do not wait for it.","commandId":"01a11aab-8ee7-7000-b203-c4307a1525c0"}},"emittedAtMs":1791448813343}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:6","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"72918649-2037-422e-b164-46bb35afb7e4","sequence":37},"last":{"id":"72918649-2037-422e-b164-46bb35afb7e4","sequence":37}},"item":{"itemId":"72918649-2037-422e-b164-46bb35afb7e4","kind":"reminderChild","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":1,"status":"inProgress","recordedAt":"2026-10-08T08:40:13.451887Z","fallbackText":"Reminder child session","childSessionId":"09fe2f90-21e4-4890-820b-675c3f4d539c","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11aab-8f66-7913-b12b-a5e59f80375f"}},"emittedAtMs":1791448813456}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:6.1","item":{"itemId":"81d3f23c-c5d7-44c1-9d80-168000e6b5fd","kind":"reasoning","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":1,"status":"inProgress","summary":[""]}},"emittedAtMs":1791448818936}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:6.2","itemId":"81d3f23c-c5d7-44c1-9d80-168000e6b5fd","field":"summary.0","delta":"Designing a two-agent parallel workflow script for the host API with ping and pong labels and immediate termination."},"emittedAtMs":1791448818936}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:6.3","itemId":"81d3f23c-c5d7-44c1-9d80-168000e6b5fd","field":"summary.1","delta":"Choosing host.parallel over Promise.all to launch exactly two labeled agents without awaiting completion."},"emittedAtMs":1791448823296}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:7","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"98785507-80f6-4c31-9c56-d11409f269c2","sequence":53},"last":{"id":"98785507-80f6-4c31-9c56-d11409f269c2","sequence":53}},"item":{"itemId":"81d3f23c-c5d7-44c1-9d80-168000e6b5fd","kind":"reasoning","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:45.872944Z","truncated":true,"summary":["Designing a two-agent parallel workflow script for the host API with ping and pong labels and immediate termination.","Choosing host.parallel over Promise.all to launch exactly two labeled agents without awaiting completion."],"providerItemId":"rs_6ac756f08b4ea12300f4439e:rs_01a11aab9c4c756e89526fc83fff3c1e"}},"emittedAtMs":1791448845876}}
+{"type":"emit_inbound","label":"session/tokenUsage","frame":{"jsonrpc":"2.0","method":"session/tokenUsage","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:8","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"0b2fddfd-f5b1-4f76-8610-50b2f2651f58","sequence":58},"last":{"id":"0b2fddfd-f5b1-4f76-8610-50b2f2651f58","sequence":58}},"turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","modelId":"muse-spark-1.3-contributor","usage":{"inputTokens":32398,"outputTokens":2366,"cachedTokens":0,"cacheWriteTokens":0,"cacheReadTokens":0,"reasoningTokens":2107},"promptTokens":32398,"totalTokens":34764,"finishReason":"tool_calls","durationMs":34004,"cumulative":{"promptTokens":32398,"outputTokens":2366,"totalTokens":34764,"cost":{"usd":0.003713,"partial":false}}},"emittedAtMs":1791448847541}}
+{"type":"emit_inbound","label":"session/contextUsage","frame":{"jsonrpc":"2.0","method":"session/contextUsage","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:9","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"0b2fddfd-f5b1-4f76-8610-50b2f2651f58","sequence":58},"last":{"id":"0b2fddfd-f5b1-4f76-8610-50b2f2651f58","sequence":58}},"windowTokens":1007997,"usedTokens":34764,"pressure":"normal"},"emittedAtMs":1791448847541}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:10","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"f59a7f06-a807-4416-a184-e7d5de57bd9e","sequence":60},"last":{"id":"7272ae22-9527-4b1b-82f0-a549c4760837","sequence":66}},"item":{"itemId":"01a11aac-14c7-7cb3-b46c-fbe35e28f830","kind":"toolCall","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":1,"status":"inProgress","recordedAt":"2026-10-08T08:40:47.596132Z","tool":"workflow","callId":"call_01a11aac0f4973918be210e5f9df791c","args":"{\"name\":\"Ping Pong\",\"script\":\"export default async function workflow(host) { const results = await host.parallel([{ input: \\\"Reply with the word PING and nothing else.\\\", label: \\\"ping\\\" }, { input: \\\"Reply with the word PONG and nothing else.\\\", label: \\\"pong\\\" }]); return { status: \\\"ok\\\", ping_ref: results[0].ref, pong_ref: results[1].ref }; }\"}"}},"emittedAtMs":1791448847601}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:11","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"f59a7f06-a807-4416-a184-e7d5de57bd9e","sequence":60},"last":{"id":"d25ddb2c-1fd9-4a51-afef-64a2906d16eb","sequence":70}},"item":{"itemId":"01a11aac-14c7-7cb3-b46c-fbe35e28f830","kind":"toolCall","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:47.632534Z","tool":"workflow","callId":"call_01a11aac0f4973918be210e5f9df791c","args":"{\"name\":\"Ping Pong\",\"script\":\"export default async function workflow(host) { const results = await host.parallel([{ input: \\\"Reply with the word PING and nothing else.\\\", label: \\\"ping\\\" }, { input: \\\"Reply with the word PONG and nothing else.\\\", label: \\\"pong\\\" }]); return { status: \\\"ok\\\", ping_ref: results[0].ref, pong_ref: results[1].ref }; }\"}","visibleOutput":"{\"status\":\"launched\",\"entryId\":\"Ping Pong\",\"hostApiVersion\":\"v1\",\"scriptBytes\":308,\"scriptHash\":\"sha256:a5cf33cd00a2908a90846a6fe5e513518cb7fda269006f825ef3aa15415aaa48\",\"scriptPath\":\"~/.local/share/muse/sessions/2026/10/08/01a11aab-8cb6-7000-9205-29210d8cba14/workflows/scripts/01a11aac-14f9-7211-ac04-3e4af13de3d5.js\",\"taskId\":\"01a11aac-14f9-7211-ac04-3e4af13de3d5\",\"workflowRunId\":\"workflow-run-model-tool-call_01a11aac0f4973918be210e5f9df791c\",\"workflowRunIdDescription\":\"Internal opaque control handle for Workflow calls only. Pass this exact value only as resumeFromRunId; never repeat it in user-facing prose.\",\"workId\":\"work.v1.workflow.sha256.94d5e102986aabb0fe02d12bbd88e64e0938b371419741b095c21f3ed1209e45\",\"maxParallelAgents\":16,\"tokenBudget\":null,\"policy\":{\"id\":\"policy:standard\",\"caps\":\"caps:generated-js-workflow\",\"childLimit\":16},\"args\":{},\"message\":\"Workflow launched: the workflow runs in the background and its completion is delivered to this conversation. Do not call workflow again while this owner is live. The persisted script lives at ~/.local/share/muse/sessions/2026/10/08/01a11aab-8cb6-7000-9205-29210d8cba14/workflows/scripts/01a11aac-14f9-7211-ac04-3e4af13de3d5.js. To iterate after this owner ends (completion, failure, or reported recovery), edit that file and call workflow again with {\\\"name\\\": \\\"Ping Pong\\\", \\\"scriptPath\\\": \\\"~/.local/share/muse/sessions/2026/10/08/01a11aab-8cb6-7000-9205-29210d8cba14/workflows/scripts/01a11aac-14f9-7211-ac04-3e4af13de3d5.js\\\", \\\"resumeFromRunId\\\": \\\"workflow-run-model-tool-call_01a11aac0f4973918be210e5f9df791c\\\"} instead of resending inline script; a resume re-executes the script from the top and reuses only the longest unchanged completed call prefix, so completed agent() calls before your first change replay from the journal instead of re-running. Runtime admission (policy, caps, duplicates) may still reject a resume. To stop this run before it completes, call work_stop with work_id = work.v1.workflow.sha256.94d5e102986aabb0fe02d12bbd88e64e0938b371419741b095c21f3ed1209e45.\"}"}},"emittedAtMs":1791448847637}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:12","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"fd4a17eb-798b-4576-9e90-adf9fd4d7da4","sequence":71},"last":{"id":"fd4a17eb-798b-4576-9e90-adf9fd4d7da4","sequence":71}},"item":{"itemId":"fd4a17eb-798b-4576-9e90-adf9fd4d7da4","kind":"workflow","turnId":"01a11aab-8ee7-7000-b203-c4307a1525c0","revision":1,"status":"inProgress","recordedAt":"2026-10-08T08:40:47.637781Z","fallbackText":"Workflow: model-chosen generated workflow","workflowRunId":"workflow-run-model-tool-call_01a11aac0f4973918be210e5f9df791c","entryId":"Ping Pong","scriptId":"generated.workflow.Ping_Pong","triggerSource":"guidanceAuto","children":[]}},"emittedAtMs":1791448847648}}
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+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:28.2","itemId":"9b62f9c0-5364-473e-8061-939f3eabc07a","field":"text","delta":"Done"},"emittedAtMs":1791448852746}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:28.3","itemId":"9b62f9c0-5364-473e-8061-939f3eabc07a","field":"text","delta":". Workflow completed:\n\n"},"emittedAtMs":1791448852747}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:28.4","itemId":"9b62f9c0-5364-473e-8061-939f3eabc07a","field":"text","delta":"- ping: PING\n- pong"},"emittedAtMs":1791448852747}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:28.5","itemId":"9b62f9c0-5364-473e-8061-939f3eabc07a","field":"text","delta":": PONG"},"emittedAtMs":1791448852747}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:29","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"295e80ae-acb8-4edb-93c8-58a8907ad2aa","sequence":167},"last":{"id":"295e80ae-acb8-4edb-93c8-58a8907ad2aa","sequence":167}},"item":{"itemId":"9b62f9c0-5364-473e-8061-939f3eabc07a","kind":"agentMessage","turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:52.747047Z","text":"Done. Workflow completed:\n\n- ping: PING\n- pong: PONG"}},"emittedAtMs":1791448852751}}
+{"type":"emit_inbound","label":"session/tokenUsage","frame":{"jsonrpc":"2.0","method":"session/tokenUsage","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:30","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"d3f944af-7d0f-4018-9782-1226fb750a12","sequence":170},"last":{"id":"d3f944af-7d0f-4018-9782-1226fb750a12","sequence":170}},"turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","modelId":"muse-spark-1.3-contributor","usage":{"inputTokens":36490,"outputTokens":75,"cachedTokens":32369,"cacheWriteTokens":0,"cacheReadTokens":32369,"reasoningTokens":49},"promptTokens":36490,"totalTokens":36565,"durationMs":1555,"cumulative":{"promptTokens":68888,"outputTokens":2441,"totalTokens":71329,"cacheReadTokens":32369,"cost":{"usd":0.004204838,"partial":false}}},"emittedAtMs":1791448852790}}
+{"type":"emit_inbound","label":"session/contextUsage","frame":{"jsonrpc":"2.0","method":"session/contextUsage","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:31","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"d3f944af-7d0f-4018-9782-1226fb750a12","sequence":170},"last":{"id":"d3f944af-7d0f-4018-9782-1226fb750a12","sequence":170}},"windowTokens":1007997,"usedTokens":36565,"pressure":"normal"},"emittedAtMs":1791448852790}}
+{"type":"emit_inbound","label":"turn/foregroundCompleted","frame":{"jsonrpc":"2.0","method":"turn/foregroundCompleted","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:32","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","sequence":177},"last":{"id":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","sequence":177}},"turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","blockingAgents":["goal-reminder","verify-reminder"]},"emittedAtMs":1791448852824}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:33","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","sequence":177},"last":{"id":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","sequence":177}},"item":{"itemId":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","kind":"reminderChild","turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","revision":1,"status":"inProgress","recordedAt":"2026-10-08T08:40:52.820214Z","fallbackText":"Reminder child session","childSessionId":"13d8e522-265d-4b94-8230-2c3d8a345ae5","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11aac-293b-7e31-aed6-20e667abe6ae","childSessionLogPath":"subagent/13d8e522-265d-4b94-8230-2c3d8a345ae5/session.jsonl","blocking":true}},"emittedAtMs":1791448852824}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:34","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"21fdfa80-7a64-4337-b427-58d0047075a5","sequence":184},"last":{"id":"21fdfa80-7a64-4337-b427-58d0047075a5","sequence":184}},"item":{"itemId":"21fdfa80-7a64-4337-b427-58d0047075a5","kind":"reminderChild","turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","revision":1,"status":"inProgress","recordedAt":"2026-10-08T08:40:52.85675Z","fallbackText":"Reminder child session","childSessionId":"3c68727a-8c34-47fd-b9c8-1795d96205d7","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11aac-295c-70f2-9f11-070a3593b999","childSessionLogPath":"subagent/3c68727a-8c34-47fd-b9c8-1795d96205d7/session.jsonl","blocking":true}},"emittedAtMs":1791448852860}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:35","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"19ca2b23-e640-48bc-8c1a-d83359c8a66a","sequence":154},"last":{"id":"55c826cf-399e-4b6d-9327-549ba8ec7f4e","sequence":186}},"item":{"itemId":"19ca2b23-e640-48bc-8c1a-d83359c8a66a","kind":"reminderChild","turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:57.302483Z","fallbackText":"Reminder child session","childSessionId":"2658fc1a-71dd-4536-abaf-4825e8f9ec9d","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11aac-2264-7851-9c7d-0ad9b53e5310"}},"emittedAtMs":1791448857306}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:36","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","sequence":177},"last":{"id":"5b88057e-bb03-4147-bf32-3e7262e17329","sequence":187}},"item":{"itemId":"2f0f6a6b-bf19-4fed-ae7f-41b9d4bba571","kind":"reminderChild","turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:57.30689Z","fallbackText":"Reminder child session","childSessionId":"13d8e522-265d-4b94-8230-2c3d8a345ae5","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11aac-293b-7e31-aed6-20e667abe6ae","childSessionLogPath":"subagent/13d8e522-265d-4b94-8230-2c3d8a345ae5/session.jsonl","blocking":true}},"emittedAtMs":1791448857310}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:37","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"21fdfa80-7a64-4337-b427-58d0047075a5","sequence":184},"last":{"id":"61fa3f94-4622-4809-b1df-3ae8e9247fe2","sequence":188}},"item":{"itemId":"21fdfa80-7a64-4337-b427-58d0047075a5","kind":"reminderChild","turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","revision":2,"status":"completed","recordedAt":"2026-10-08T08:40:57.310854Z","fallbackText":"Reminder child session","childSessionId":"3c68727a-8c34-47fd-b9c8-1795d96205d7","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11aac-295c-70f2-9f11-070a3593b999","childSessionLogPath":"subagent/3c68727a-8c34-47fd-b9c8-1795d96205d7/session.jsonl","blocking":true}},"emittedAtMs":1791448857314}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","status":"idle","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:38"},"emittedAtMs":1791448857362}}
+{"type":"emit_inbound","label":"turn/completed","frame":{"jsonrpc":"2.0","method":"turn/completed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:38","sourceRange":{"stream":{"kind":"session","id":"01a11aab-8cb6-7000-9205-29210d8cba14"},"first":{"id":"d40dee1f-6792-4d90-b6a3-c934fa61da8a","sequence":196},"last":{"id":"d40dee1f-6792-4d90-b6a3-c934fa61da8a","sequence":196}},"turnId":"01a11aac-2205-7723-934a-82e6bd557c7b","terminal":"completed","durationMs":6394,"timeToFirstTokenMs":1785},"emittedAtMs":1791448857363}}
+{"type":"emit_inbound","label":"session/closed","frame":{"jsonrpc":"2.0","method":"session/closed","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","reason":"hostShutdown","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:38"},"emittedAtMs":1791448857669}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11aab-8cb6-7000-9205-29210d8cba14","status":"notLoaded","viewCursor":"v:01a11aab-8cb6-7000-9205-29210d8cba14:38"},"emittedAtMs":1791448857669}}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/output.ts b/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/output.ts
new file mode 100644
index 0000000000000000000000000000000000000000..986dc05ba9327fd7ac6e0cef50b15877ad54d84a
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/muse_workflow/output.ts
@@ -0,0 +1,59 @@
+import { assert } from "@effect/vitest";
+import type { ProviderReplayTranscript } from "@t3tools/contracts";
+
+import type { OrchestratorV2ScenarioResult } from "../../OrchestratorScenario.ts";
+import {
+ assertSemanticProjectionIntegrity,
+ assertVisibleTurnItemsMirrorLocalTurnItems,
+ projectionFor,
+} from "../shared.ts";
+
+/**
+ * The workflow row stays live after its turn and settles when the workflow
+ * does; Muse's own report turn becomes a second, completed run instead of
+ * being interrupted, and nothing is left pending.
+ */
+export function assertMuseWorkflowOutput(
+ result: OrchestratorV2ScenarioResult,
+ transcript: ProviderReplayTranscript,
+) {
+ const projection = projectionFor(result, transcript.scenario);
+ assertSemanticProjectionIntegrity(projection);
+ assertVisibleTurnItemsMirrorLocalTurnItems(projection);
+ assert.deepEqual(
+ projection.runs.map((run) => run.status),
+ ["completed", "completed"],
+ );
+ const outbound = transcript.entries.flatMap((entry) =>
+ entry.type === "expect_outbound" ? [entry.frame] : [],
+ );
+ const methods = outbound.map((frame) =>
+ typeof frame === "object" && frame !== null ? Reflect.get(frame, "method") : undefined,
+ );
+ assert.notInclude(methods, "turn/interrupt", "Muse's report turn must not be interrupted");
+ assert.equal(methods.filter((method) => method === "turn/start").length, 1);
+
+ const workflow = projection.turnItems.find(
+ (item) => item.type === "dynamic_tool" && item.toolName === "workflow",
+ );
+ assert.isDefined(workflow, "the workflow shows as a row");
+ assert.equal(workflow.status, "completed");
+ assert.equal(workflow.runId, projection.runs[0]?.id);
+
+ const report = projection.messages.filter(
+ (message) => message.role === "assistant" && message.runId === projection.runs[1]?.id,
+ );
+ assert.isAbove(report.length, 0, "Muse's report reaches the second run");
+
+ // Each workflow agent is a native subagent nested under the workflow row.
+ assert.lengthOf(projection.subagents, 2);
+ for (const agent of projection.subagents) {
+ assert.equal(agent.origin, "provider_native");
+ assert.equal(agent.status, "completed");
+ assert.isNull(agent.childThreadId);
+ }
+ const agentRows = projection.turnItems.filter((item) => item.type === "subagent");
+ assert.lengthOf(agentRows, 2);
+ assert.isTrue(agentRows.every((row) => row.parentItemId === workflow.id));
+ assert.deepEqual(projection.providerThreads[0]?.pendingBackgroundTasks ?? [], []);
+}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/shared.ts b/apps/server/src/orchestration-v2/testkit/fixtures/shared.ts
index c312c52b682f21b79711bfc0badc0c302133fb6e..ed2a32ad6eb6adaa163a200432dcf5bf894d658f 100644
--- a/apps/server/src/orchestration-v2/testkit/fixtures/shared.ts
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/shared.ts
@@ -365,6 +365,12 @@ export const CURSOR_MODEL_SELECTION = {
model: "composer-2.5",
} satisfies ModelSelection;
+/** Muse fixtures are recorded against this model; the account's listed models may differ. */
+export const MUSE_MODEL_SELECTION = {
+ instanceId: ProviderInstanceId.make("muse"),
+ model: "muse-spark-1.3-contributor",
+} satisfies ModelSelection;
+
export const GROK_MODEL_SELECTION = {
instanceId: ProviderInstanceId.make("grok"),
model: "grok-build",
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/simple/muse_transcript.ndjson b/apps/server/src/orchestration-v2/testkit/fixtures/simple/muse_transcript.ndjson
new file mode 100644
index 0000000000000000000000000000000000000000..9810c4378d46ebb1bb7ea1dba9f15e1235174632
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/simple/muse_transcript.ndjson
@@ -0,0 +1,33 @@
+{"type":"transcript_start","provider":"muse","protocol":"muse.msp-jsonl","version":"1.4.3-R5018.1","scenario":"simple","metadata":{"generatedBy":"live-muse-recorder","model":"muse-spark-1.3-contributor","commandIds":[["01a11a6a-bbb5-7000-ad0b-0c9e728406e5","01a11a6a-bbb6-7000-b1a4-a01ea59676ef","01a11a6a-be41-7000-8db9-1d84c1b8be48"]]}}
+{"type":"expect_outbound","label":"host_start","frame":{"type":"host_start","args":["serve","--trust-workspace","--disable-sandbox"]}}
+{"type":"expect_outbound","label":"initialize","frame":{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"clientInfo":{"name":"t3_code","title":"T3 Code","version":"1"},"capabilities":{"requestedCapabilities":["sessionMcp"]}}}}
+{"type":"emit_inbound","label":"response:initialize","frame":{"jsonrpc":"2.0","id":1,"result":{"serverInfo":{"name":"muse","version":"1.4.3"},"userAgent":"muse-build/1.4.3 (non-interactive; macos-aarch64; build 5c1bccecf3f125ff8fdc53f63558f6527ee70e56)","museHome":"~/.local/share/muse","platformFamily":"unix","platformOs":"macos","schema":{"version":1,"fingerprint":"sha256:4cb671082574037fc1070a136db7c0c8dc24e65e78cf3d209a10944ff9f9845f"},"grantedCapabilities":["sessionMcp"],"experimentalApi":false,"sessionDurability":"durable"}}}
+{"type":"expect_outbound","label":"initialized","frame":{"jsonrpc":"2.0","method":"initialized"}}
+{"type":"expect_outbound","label":"session/start","frame":{"jsonrpc":"2.0","id":2,"method":"session/start","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","workspaceRoot":"","modelId":"muse-spark-1.3-contributor","providerId":"meta","approvalMode":"allowAll","commandId":"01a11a6a-bbb6-7000-b1a4-a01ea59676ef"}}}
+{"type":"emit_inbound","label":"session/started","frame":{"jsonrpc":"2.0","method":"session/started","params":{"session":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6a-bbb5-7000-ad0b-0c9e728406e5/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:29:25.018803Z","updatedAt":"2026-10-08T07:29:25.018807Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"}},"emittedAtMs":1791444565334}}
+{"type":"emit_inbound","label":"response:session/start","frame":{"jsonrpc":"2.0","id":2,"result":{"session":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6a-bbb5-7000-ad0b-0c9e728406e5/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:29:25.018803Z","updatedAt":"2026-10-08T07:29:25.018807Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"},"viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:1"}}}
+{"type":"emit_inbound","label":"session/approvalModeChanged","frame":{"jsonrpc":"2.0","method":"session/approvalModeChanged","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:1","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"cfd043e8-8728-493d-ba28-252ef91e8a80","sequence":5},"last":{"id":"cfd043e8-8728-493d-ba28-252ef91e8a80","sequence":5}},"mode":"allowAll","source":"approvalReconfigure","commandId":"01a11a6a-bbb6-7000-b1a4-a01ea59676ef","clientName":"t3_code"},"emittedAtMs":1791444565340}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":3,"method":"turn/start","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Respond with the following text: fixture simple ok"}],"displayText":"Respond with the following text: fixture simple ok","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11a6a-be41-7000-8db9-1d84c1b8be48"}}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:2","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"0f64f4ea-a08c-43e1-af53-cf85cee1a11c","sequence":16},"last":{"id":"0f64f4ea-a08c-43e1-af53-cf85cee1a11c","sequence":16}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444565612}}
+{"type":"emit_inbound","label":"response:turn/start","frame":{"jsonrpc":"2.0","id":3,"result":{"commandId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","status":"accepted","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","startedNewTurn":true,"disposition":"started"}}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","status":"running","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:3"},"emittedAtMs":1791444565635}}
+{"type":"emit_inbound","label":"turn/started","frame":{"jsonrpc":"2.0","method":"turn/started","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:3","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"1f33a521-7829-4cc3-97db-a3b5a6e7deaf","sequence":18},"last":{"id":"1f33a521-7829-4cc3-97db-a3b5a6e7deaf","sequence":18}},"turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","commandId":"01a11a6a-be41-7000-8db9-1d84c1b8be48"},"emittedAtMs":1791444565635}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:4","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"1f33a521-7829-4cc3-97db-a3b5a6e7deaf","sequence":18},"last":{"id":"1f33a521-7829-4cc3-97db-a3b5a6e7deaf","sequence":18}},"item":{"itemId":"23294b54-8e67-4896-a7f3-681119e1ddbe","kind":"userMessage","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":1,"status":"completed","recordedAt":"2026-10-08T07:29:25.627042Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRespond with the following text: fixture simple ok","commandId":"01a11a6a-be41-7000-8db9-1d84c1b8be48"}},"emittedAtMs":1791444565635}}
+{"type":"emit_inbound","label":"item/updated","frame":{"jsonrpc":"2.0","method":"item/updated","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:5","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"8c00aa21-7809-4cb2-89f7-b499aaa8746d","sequence":20},"last":{"id":"8c00aa21-7809-4cb2-89f7-b499aaa8746d","sequence":20}},"item":{"itemId":"23294b54-8e67-4896-a7f3-681119e1ddbe","kind":"userMessage","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":2,"status":"completed","recordedAt":"2026-10-08T07:29:25.643029Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nRespond with the following text: fixture simple ok","displayText":"Respond with the following text: fixture simple ok","commandId":"01a11a6a-be41-7000-8db9-1d84c1b8be48"}},"emittedAtMs":1791444565652}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:6","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"ed1680a5-6f99-4b0f-b9ea-d12193f0de1f","sequence":37},"last":{"id":"ed1680a5-6f99-4b0f-b9ea-d12193f0de1f","sequence":37}},"item":{"itemId":"ed1680a5-6f99-4b0f-b9ea-d12193f0de1f","kind":"reminderChild","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:29:25.781511Z","fallbackText":"Reminder child session","childSessionId":"9785bf9d-382d-4781-ab3b-3817c9e6a604","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6a-bef1-7032-974a-059b8765c487"}},"emittedAtMs":1791444565789}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:6.1","item":{"itemId":"0a68e576-f554-4700-8853-a68ad2b7179b","kind":"agentMessage","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":1,"status":"inProgress","text":""}},"emittedAtMs":1791444567707}}
+{"type":"emit_inbound","label":"item/delta","frame":{"jsonrpc":"2.0","method":"item/delta","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:6.2","itemId":"0a68e576-f554-4700-8853-a68ad2b7179b","field":"text","delta":"fixture simple ok"},"emittedAtMs":1791444567707}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:7","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"b0a8c947-8b74-4ffc-bf98-4b4bd4352219","sequence":50},"last":{"id":"b0a8c947-8b74-4ffc-bf98-4b4bd4352219","sequence":50}},"item":{"itemId":"0a68e576-f554-4700-8853-a68ad2b7179b","kind":"agentMessage","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":2,"status":"completed","recordedAt":"2026-10-08T07:29:27.707787Z","text":"fixture simple ok"}},"emittedAtMs":1791444567717}}
+{"type":"emit_inbound","label":"session/tokenUsage","frame":{"jsonrpc":"2.0","method":"session/tokenUsage","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:8","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"521ada49-1697-435c-bad6-3baca15429b8","sequence":53},"last":{"id":"521ada49-1697-435c-bad6-3baca15429b8","sequence":53}},"turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","modelId":"muse-spark-1.3-contributor","usage":{"inputTokens":32350,"outputTokens":24,"cachedTokens":0,"cacheWriteTokens":0,"cacheReadTokens":0,"reasoningTokens":11},"promptTokens":32350,"totalTokens":32374,"durationMs":1865,"cumulative":{"promptTokens":32350,"outputTokens":24,"totalTokens":32374,"cost":{"usd":0.0032398,"partial":false}}},"emittedAtMs":1791444567740}}
+{"type":"emit_inbound","label":"session/contextUsage","frame":{"jsonrpc":"2.0","method":"session/contextUsage","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:9","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"521ada49-1697-435c-bad6-3baca15429b8","sequence":53},"last":{"id":"521ada49-1697-435c-bad6-3baca15429b8","sequence":53}},"windowTokens":1007997,"usedTokens":32374,"pressure":"normal"},"emittedAtMs":1791444567740}}
+{"type":"emit_inbound","label":"turn/foregroundCompleted","frame":{"jsonrpc":"2.0","method":"turn/foregroundCompleted","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:10","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"37efc576-c4ef-42ff-9435-064b96643a23","sequence":60},"last":{"id":"37efc576-c4ef-42ff-9435-064b96643a23","sequence":60}},"turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","blockingAgents":["goal-reminder","verify-reminder"]},"emittedAtMs":1791444567784}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:11","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"37efc576-c4ef-42ff-9435-064b96643a23","sequence":60},"last":{"id":"37efc576-c4ef-42ff-9435-064b96643a23","sequence":60}},"item":{"itemId":"37efc576-c4ef-42ff-9435-064b96643a23","kind":"reminderChild","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:29:27.779655Z","fallbackText":"Reminder child session","childSessionId":"484af7be-7c64-4ff1-82a9-96b21a5312ce","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6a-c6c1-7640-a314-d539bdff5e0c","childSessionLogPath":"subagent/484af7be-7c64-4ff1-82a9-96b21a5312ce/session.jsonl","blocking":true}},"emittedAtMs":1791444567784}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:12","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"720d1294-2aa3-492f-b602-c3f892bdf7d3","sequence":67},"last":{"id":"720d1294-2aa3-492f-b602-c3f892bdf7d3","sequence":67}},"item":{"itemId":"720d1294-2aa3-492f-b602-c3f892bdf7d3","kind":"reminderChild","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:29:27.827355Z","fallbackText":"Reminder child session","childSessionId":"928f5153-7ec9-4cf3-9c9a-4e8c3ab74de8","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6a-c6f1-7d82-afc3-099dfc7a8968","childSessionLogPath":"subagent/928f5153-7ec9-4cf3-9c9a-4e8c3ab74de8/session.jsonl","blocking":true}},"emittedAtMs":1791444567831}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:13","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"ed1680a5-6f99-4b0f-b9ea-d12193f0de1f","sequence":37},"last":{"id":"6b175606-cbc4-4965-86b3-44bec5df27e4","sequence":69}},"item":{"itemId":"ed1680a5-6f99-4b0f-b9ea-d12193f0de1f","kind":"reminderChild","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":2,"status":"completed","recordedAt":"2026-10-08T07:29:39.330655Z","fallbackText":"Reminder child session","childSessionId":"9785bf9d-382d-4781-ab3b-3817c9e6a604","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6a-bef1-7032-974a-059b8765c487"}},"emittedAtMs":1791444579334}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:14","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"37efc576-c4ef-42ff-9435-064b96643a23","sequence":60},"last":{"id":"c981d584-6fa9-4f3b-af7e-f6bb259536f5","sequence":70}},"item":{"itemId":"37efc576-c4ef-42ff-9435-064b96643a23","kind":"reminderChild","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":2,"status":"completed","recordedAt":"2026-10-08T07:29:39.334602Z","fallbackText":"Reminder child session","childSessionId":"484af7be-7c64-4ff1-82a9-96b21a5312ce","reminderAgentId":"goal-reminder","generationId":1,"taskId":"01a11a6a-c6c1-7640-a314-d539bdff5e0c","childSessionLogPath":"subagent/484af7be-7c64-4ff1-82a9-96b21a5312ce/session.jsonl","blocking":true}},"emittedAtMs":1791444579338}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:15","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"720d1294-2aa3-492f-b602-c3f892bdf7d3","sequence":67},"last":{"id":"4c252852-689b-457c-8b30-af557b2b7acf","sequence":71}},"item":{"itemId":"720d1294-2aa3-492f-b602-c3f892bdf7d3","kind":"reminderChild","turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","revision":2,"status":"completed","recordedAt":"2026-10-08T07:29:39.338747Z","fallbackText":"Reminder child session","childSessionId":"928f5153-7ec9-4cf3-9c9a-4e8c3ab74de8","reminderAgentId":"verify-reminder","generationId":1,"taskId":"01a11a6a-c6f1-7d82-afc3-099dfc7a8968","childSessionLogPath":"subagent/928f5153-7ec9-4cf3-9c9a-4e8c3ab74de8/session.jsonl","blocking":true}},"emittedAtMs":1791444579350}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","status":"idle","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:16"},"emittedAtMs":1791444579409}}
+{"type":"emit_inbound","label":"turn/completed","frame":{"jsonrpc":"2.0","method":"turn/completed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:16","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"186e95f3-f1f1-46e3-9470-0154904b2eae","sequence":79},"last":{"id":"186e95f3-f1f1-46e3-9470-0154904b2eae","sequence":79}},"turnId":"01a11a6a-be41-7000-8db9-1d84c1b8be48","terminal":"completed","durationMs":13778,"timeToFirstTokenMs":2084},"emittedAtMs":1791444579410}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:17","sourceRange":{"stream":{"kind":"session","id":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5"},"first":{"id":"4cb68dd8-75e6-4320-bcb8-ccdae87408e3","sequence":80},"last":{"id":"4cb68dd8-75e6-4320-bcb8-ccdae87408e3","sequence":80}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444579437}}
+{"type":"emit_inbound","label":"session/closed","frame":{"jsonrpc":"2.0","method":"session/closed","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","reason":"hostShutdown","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:17"},"emittedAtMs":1791444579675}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6a-bbb5-7000-ad0b-0c9e728406e5","status":"notLoaded","viewCursor":"v:01a11a6a-bbb5-7000-ad0b-0c9e728406e5:17"},"emittedAtMs":1791444579675}}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/turn_interrupt/muse_output.ts b/apps/server/src/orchestration-v2/testkit/fixtures/turn_interrupt/muse_output.ts
new file mode 100644
index 0000000000000000000000000000000000000000..9c430003da7ce66a3e863137c2fdc63e03e1fa3a
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/turn_interrupt/muse_output.ts
@@ -0,0 +1,42 @@
+import { assert } from "@effect/vitest";
+import type { ProviderReplayTranscript } from "@t3tools/contracts";
+
+import type { OrchestratorV2ScenarioResult } from "../../OrchestratorScenario.ts";
+import {
+ assertBaseProjection,
+ assertSemanticProjectionIntegrity,
+ assertUserMessagesInclude,
+ assertVisibleTurnItemsMirrorLocalTurnItems,
+ projectionFor,
+ TURN_INTERRUPT_PROMPT,
+} from "../shared.ts";
+
+/**
+ * Stop while Muse works on a `sleep 30` request: T3 sends `turn/interrupt`, Muse
+ * ends the turn as cancelled, and the run, every row and the session settle.
+ */
+export function assertMuseTurnInterruptOutput(
+ result: OrchestratorV2ScenarioResult,
+ transcript: ProviderReplayTranscript,
+) {
+ assertBaseProjection({ result, transcript, runCount: 1, runStatuses: ["interrupted"] });
+ const projection = projectionFor(result, transcript.scenario);
+ assertSemanticProjectionIntegrity(projection);
+ assertVisibleTurnItemsMirrorLocalTurnItems(projection);
+ assertUserMessagesInclude(projection, [TURN_INTERRUPT_PROMPT]);
+ const outbound = transcript.entries.flatMap((entry) =>
+ entry.type === "expect_outbound" ? [entry.frame] : [],
+ );
+ assert.isTrue(
+ outbound.some(
+ (frame) =>
+ typeof frame === "object" &&
+ frame !== null &&
+ Reflect.get(frame, "method") === "turn/interrupt",
+ ),
+ "Stop must reach Muse as turn/interrupt",
+ );
+ assert.isFalse(projection.turnItems.some((item) => item.status === "running"));
+ assert.equal(projection.providerThreads[0]?.status, "idle");
+ assert.equal(projection.providerTurns[0]?.status, "interrupted");
+}
diff --git a/apps/server/src/orchestration-v2/testkit/fixtures/turn_interrupt/muse_transcript.ndjson b/apps/server/src/orchestration-v2/testkit/fixtures/turn_interrupt/muse_transcript.ndjson
new file mode 100644
index 0000000000000000000000000000000000000000..04a42c403b0941382bd4368d27bee669e1cae236
--- /dev/null
+++ b/apps/server/src/orchestration-v2/testkit/fixtures/turn_interrupt/muse_transcript.ndjson
@@ -0,0 +1,25 @@
+{"type":"transcript_start","provider":"muse","protocol":"muse.msp-jsonl","version":"1.4.3-R5018.1","scenario":"turn_interrupt","metadata":{"generatedBy":"live-muse-recorder","model":"muse-spark-1.3-contributor","commandIds":[["01a11a6d-2d3d-7000-8178-411fdb90bc34","01a11a6d-2d3e-7000-b0e7-f04c53ee070b","01a11a6d-2ee0-7000-be19-f20eda7ce5d5","01a11a6d-2f0b-7000-a1d4-359cf54e471a"]]}}
+{"type":"expect_outbound","label":"host_start","frame":{"type":"host_start","args":["serve","--trust-workspace","--disable-sandbox"]}}
+{"type":"expect_outbound","label":"initialize","frame":{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"clientInfo":{"name":"t3_code","title":"T3 Code","version":"1"},"capabilities":{"requestedCapabilities":["sessionMcp"]}}}}
+{"type":"emit_inbound","label":"response:initialize","frame":{"jsonrpc":"2.0","id":1,"result":{"serverInfo":{"name":"muse","version":"1.4.3"},"userAgent":"muse-build/1.4.3 (non-interactive; macos-aarch64; build 5c1bccecf3f125ff8fdc53f63558f6527ee70e56)","museHome":"~/.local/share/muse","platformFamily":"unix","platformOs":"macos","schema":{"version":1,"fingerprint":"sha256:4cb671082574037fc1070a136db7c0c8dc24e65e78cf3d209a10944ff9f9845f"},"grantedCapabilities":["sessionMcp"],"experimentalApi":false,"sessionDurability":"durable"}}}
+{"type":"expect_outbound","label":"initialized","frame":{"jsonrpc":"2.0","method":"initialized"}}
+{"type":"expect_outbound","label":"session/start","frame":{"jsonrpc":"2.0","id":2,"method":"session/start","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","workspaceRoot":"","modelId":"muse-spark-1.3-contributor","providerId":"meta","approvalMode":"allowAll","commandId":"01a11a6d-2d3e-7000-b0e7-f04c53ee070b"}}}
+{"type":"emit_inbound","label":"session/started","frame":{"jsonrpc":"2.0","method":"session/started","params":{"session":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6d-2d3d-7000-8178-411fdb90bc34/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:32:05.094285Z","updatedAt":"2026-10-08T07:32:05.094289Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"}},"emittedAtMs":1791444725265}}
+{"type":"emit_inbound","label":"response:session/start","frame":{"jsonrpc":"2.0","id":2,"result":{"session":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","path":"~/.local/share/muse/sessions/2026/10/08/01a11a6d-2d3d-7000-8178-411fdb90bc34/session.jsonl","status":"idle","activeTurnId":null,"createdAt":"2026-10-08T07:32:05.094285Z","updatedAt":"2026-10-08T07:32:05.094289Z","workspaceRoot":"","providerId":"meta","modelId":"muse-spark-1.3-contributor","turnCount":0,"forkedFrom":null,"approvalMode":{"mode":"allowAll","source":"startup","lastCommandId":null},"createdByClient":{"name":"t3_code","version":"1"},"kind":"root"},"viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:1"}}}
+{"type":"emit_inbound","label":"session/approvalModeChanged","frame":{"jsonrpc":"2.0","method":"session/approvalModeChanged","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:1","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"9865268e-0a39-43a0-89d0-251a820ec8a3","sequence":5},"last":{"id":"9865268e-0a39-43a0-89d0-251a820ec8a3","sequence":5}},"mode":"allowAll","source":"approvalReconfigure","commandId":"01a11a6d-2d3e-7000-b0e7-f04c53ee070b","clientName":"t3_code"},"emittedAtMs":1791444725268}}
+{"type":"expect_outbound","label":"turn/start","frame":{"jsonrpc":"2.0","id":3,"method":"turn/start","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","input":[{"type":"text","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\n"},{"type":"text","text":"Do not answer immediately. First run the local shell command `sleep 30`, then respond with exactly: interrupt fixture should not finish naturally."}],"displayText":"Do not answer immediately. First run the local shell command `sleep 30`, then respond with exactly: interrupt fixture should not finish naturally.","workspaceRoots":[""],"ifBusy":"queue","reasoningEffort":"high","commandId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5"}}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:2","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"531b0e9e-c96d-4fa5-a6dd-5cc7d4569543","sequence":16},"last":{"id":"531b0e9e-c96d-4fa5-a6dd-5cc7d4569543","sequence":16}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444725509}}
+{"type":"emit_inbound","label":"response:turn/start","frame":{"jsonrpc":"2.0","id":3,"result":{"commandId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","status":"accepted","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","startedNewTurn":true,"disposition":"started"}}}
+{"type":"expect_outbound","label":"turn/interrupt","frame":{"jsonrpc":"2.0","id":4,"method":"turn/interrupt","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","commandId":"01a11a6d-2f0b-7000-a1d4-359cf54e471a"}}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","status":"running","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:3"},"emittedAtMs":1791444725522}}
+{"type":"emit_inbound","label":"turn/started","frame":{"jsonrpc":"2.0","method":"turn/started","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:3","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"50d1fd8c-232b-47b9-9bfa-9b543961bbc9","sequence":18},"last":{"id":"50d1fd8c-232b-47b9-9bfa-9b543961bbc9","sequence":18}},"turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","commandId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5"},"emittedAtMs":1791444725523}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:4","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"50d1fd8c-232b-47b9-9bfa-9b543961bbc9","sequence":18},"last":{"id":"50d1fd8c-232b-47b9-9bfa-9b543961bbc9","sequence":18}},"item":{"itemId":"cfa989ad-2359-4da2-9fca-562855cc0ae8","kind":"userMessage","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","revision":1,"status":"completed","recordedAt":"2026-10-08T07:32:05.510508Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nDo not answer immediately. First run the local shell command `sleep 30`, then respond with exactly: interrupt fixture should not finish naturally.","commandId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5"}},"emittedAtMs":1791444725523}}
+{"type":"emit_inbound","label":"item/updated","frame":{"jsonrpc":"2.0","method":"item/updated","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:5","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"5db75d92-0e52-4bce-bb81-40e254b40bc3","sequence":20},"last":{"id":"5db75d92-0e52-4bce-bb81-40e254b40bc3","sequence":20}},"item":{"itemId":"cfa989ad-2359-4da2-9fca-562855cc0ae8","kind":"userMessage","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","revision":2,"status":"completed","recordedAt":"2026-10-08T07:32:05.530992Z","text":"In case you're asked: you are running in T3 Code through the Muse Code harness, as muse-spark-1.3-contributor with high reasoning effort. No need to mention this otherwise. You can embed images and videos in your response using Markdown with absolute file paths.\n\n\nWhen the t3-code MCP server exposes link_pull_request, you must use it to register every pull request you create or work on for this thread. Call link_pull_request with the full PR URL immediately after creating a PR or starting work on an existing PR. For a stack, call it for every layer, not just the current branch or the top PR. This applies when creating or updating PRs through gh, gh stack, another CLI, or the host API: those operations do not register the PRs with this thread. Linking an already-linked PR is safe. Before finishing PR work, call list_thread_pull_requests and link any PR from your work that is missing. Do not link unrelated PRs mentioned only as background. If a linking call fails, report that failure instead of claiming the PR is linked. When asked to monitor, watch, or babysit a PR and watch_pull_request is available, call it and end your turn: T3 Code wakes you when checks finish, someone else comments, or the branch conflicts, so do not poll or run your own watcher. When you hand the work back to the user, call unwatch_pull_request first so the thread returns to their inbox.\nDo not answer immediately. First run the local shell command `sleep 30`, then respond with exactly: interrupt fixture should not finish naturally.","displayText":"Do not answer immediately. First run the local shell command `sleep 30`, then respond with exactly: interrupt fixture should not finish naturally.","commandId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5"}},"emittedAtMs":1791444725539}}
+{"type":"emit_inbound","label":"item/started","frame":{"jsonrpc":"2.0","method":"item/started","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:6","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"ae604001-22b9-479c-a45b-3dcfed45996c","sequence":37},"last":{"id":"ae604001-22b9-479c-a45b-3dcfed45996c","sequence":37}},"item":{"itemId":"ae604001-22b9-479c-a45b-3dcfed45996c","kind":"reminderChild","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","revision":1,"status":"inProgress","recordedAt":"2026-10-08T07:32:05.638142Z","fallbackText":"Reminder child session","childSessionId":"1f58196a-6bf6-42da-9499-8f53a439e6e1","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6d-2f65-70b1-bb8f-69b33bb4fc62"}},"emittedAtMs":1791444725646}}
+{"type":"emit_inbound","label":"response:turn/interrupt","frame":{"jsonrpc":"2.0","id":4,"result":{"commandId":"01a11a6d-2f0b-7000-a1d4-359cf54e471a","status":"accepted","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5"}}}
+{"type":"emit_inbound","label":"item/completed","frame":{"jsonrpc":"2.0","method":"item/completed","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:7","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"ae604001-22b9-479c-a45b-3dcfed45996c","sequence":37},"last":{"id":"3962d8d1-4608-4dda-8fdc-39a1804474aa","sequence":50}},"item":{"itemId":"ae604001-22b9-479c-a45b-3dcfed45996c","kind":"reminderChild","turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","revision":2,"status":"cancelled","recordedAt":"2026-10-08T07:32:05.727236Z","fallbackText":"Reminder child session","failureReason":"main run cancelled","childSessionId":"1f58196a-6bf6-42da-9499-8f53a439e6e1","reminderAgentId":"skill-reminder","generationId":1,"taskId":"01a11a6d-2f65-70b1-bb8f-69b33bb4fc62"}},"emittedAtMs":1791444725734}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","status":"idle","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:8"},"emittedAtMs":1791444725743}}
+{"type":"emit_inbound","label":"turn/completed","frame":{"jsonrpc":"2.0","method":"turn/completed","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:8","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"647bf662-6210-407f-b125-d7d2f649dacd","sequence":52},"last":{"id":"647bf662-6210-407f-b125-d7d2f649dacd","sequence":52}},"turnId":"01a11a6d-2ee0-7000-be19-f20eda7ce5d5","terminal":"cancelled","reason":"cancelled during model step","durationMs":228},"emittedAtMs":1791444725743}}
+{"type":"emit_inbound","label":"session/branchChanged","frame":{"jsonrpc":"2.0","method":"session/branchChanged","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:9","sourceRange":{"stream":{"kind":"session","id":"01a11a6d-2d3d-7000-8178-411fdb90bc34"},"first":{"id":"e7695021-b73e-4f99-b729-0eb7ef241321","sequence":53},"last":{"id":"e7695021-b73e-4f99-b729-0eb7ef241321","sequence":53}},"workspaceRoot":"","branch":"main","vcs":"git"},"emittedAtMs":1791444725751}}
+{"type":"emit_inbound","label":"session/closed","frame":{"jsonrpc":"2.0","method":"session/closed","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","reason":"hostShutdown","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:9"},"emittedAtMs":1791444725815}}
+{"type":"emit_inbound","label":"session/statusChanged","frame":{"jsonrpc":"2.0","method":"session/statusChanged","params":{"sessionId":"01a11a6d-2d3d-7000-8178-411fdb90bc34","status":"notLoaded","viewCursor":"v:01a11a6d-2d3d-7000-8178-411fdb90bc34:9"},"emittedAtMs":1791444725815}}
diff --git a/apps/server/src/provider/Drivers/MuseDriver.ts b/apps/server/src/provider/Drivers/MuseDriver.ts
new file mode 100644
index 0000000000000000000000000000000000000000..d881e34a4d924d9a319d34c898addf97a3130e4c
--- /dev/null
+++ b/apps/server/src/provider/Drivers/MuseDriver.ts
@@ -0,0 +1,182 @@
+import { MuseSettings, ProviderDriverKind } from "@t3tools/contracts";
+import { HostProcessEnvironment } from "@t3tools/shared/hostProcess";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Path from "effect/Path";
+import * as Schema from "effect/Schema";
+import { HttpClient } from "effect/http";
+import { ChildProcessSpawner } from "effect/process";
+
+import * as BackgroundPolicy from "../../background/BackgroundPolicy.ts";
+import * as ServerConfig from "../../config.ts";
+import { expandHomePath } from "../../pathExpansion.ts";
+import * as ServerSettings from "../../serverSettings.ts";
+import { makeMuseTextGeneration } from "../../textGeneration/MuseTextGeneration.ts";
+import { ProviderDriverError } from "../Errors.ts";
+import { makeMuseAdapterV2 } from "../../orchestration-v2/Adapters/MuseAdapterV2.ts";
+import * as IdAllocator from "../../orchestration-v2/IdAllocator.ts";
+import * as ProviderContinuationRequests from "../../orchestration-v2/ProviderContinuationRequests.ts";
+import { checkMuseProviderStatus, makePendingMuseProvider } from "../MuseProvider.ts";
+import * as ProviderEventLoggers from "../ProviderEventLoggers.ts";
+import { makeManagedServerProvider } from "../makeManagedServerProvider.ts";
+import { enrichMuseSnapshot, latestMuseVersion, museMaintenance } from "../museMaintenance.ts";
+import { makeMuseEnvironment } from "../museSdk.ts";
+import {
+ defaultProviderContinuationIdentity,
+ type ProviderDriver,
+ type ProviderInstance,
+} from "../ProviderDriver.ts";
+import { mergeProviderInstanceEnvironment } from "../ProviderInstanceEnvironment.ts";
+import {
+ makeCachedProviderMaintenanceResolution,
+ resolveProviderMaintenanceCapabilitiesEffect,
+} from "../providerMaintenance.ts";
+import {
+ haveProviderSnapshotSettingsChanged,
+ makeProviderSnapshotSettingsSource,
+ type ProviderSnapshotSettings,
+} from "../providerUpdateSettings.ts";
+import { withInstanceIdentity } from "./instanceIdentity.ts";
+
+const DRIVER_KIND = ProviderDriverKind.make("muse");
+const decodeMuseSettings = Schema.decodeSync(MuseSettings);
+
+export type MuseDriverEnv =
+ | IdAllocator.IdAllocatorV2
+ | BackgroundPolicy.BackgroundPolicy
+ | ChildProcessSpawner.ChildProcessSpawner
+ | FileSystem.FileSystem
+ | HttpClient.HttpClient
+ | Path.Path
+ | ProviderEventLoggers.ProviderEventLoggers
+ | ServerConfig.ServerConfig
+ | ServerSettings.ServerSettingsService;
+
+export const MuseDriver: ProviderDriver = {
+ driverKind: DRIVER_KIND,
+ metadata: { displayName: "Muse Code", supportsMultipleInstances: true },
+ configSchema: MuseSettings,
+ defaultConfig: () => decodeMuseSettings({}),
+ create: ({ instanceId, displayName, accentColor, environment, enabled, config }) =>
+ Effect.gen(function* () {
+ const spawner = yield* ChildProcessSpawner.ChildProcessSpawner;
+ const fileSystem = yield* FileSystem.FileSystem;
+ const path = yield* Path.Path;
+ const httpClient = yield* HttpClient.HttpClient;
+ const serverSettings = yield* ServerSettings.ServerSettingsService;
+ const eventLoggers = yield* ProviderEventLoggers.ProviderEventLoggers;
+ const serverConfig = yield* ServerConfig.ServerConfig;
+ const { cwd } = serverConfig;
+ const idAllocator = yield* IdAllocator.IdAllocatorV2;
+ const continuationRequests = yield* ProviderContinuationRequests.ProviderContinuationRequests;
+ const hostEnvironment = yield* HostProcessEnvironment;
+ // Drop an inherited META_API_KEY so Muse uses its login; an instance value still wins.
+ const processEnvironment = mergeProviderInstanceEnvironment(
+ environment,
+ makeMuseEnvironment(hostEnvironment),
+ );
+ const effectiveConfig = {
+ ...config,
+ enabled,
+ binaryPath: expandHomePath(config.binaryPath),
+ } satisfies MuseSettings;
+ const continuationIdentity = defaultProviderContinuationIdentity({
+ driverKind: DRIVER_KIND,
+ instanceId,
+ });
+ const stampIdentity = withInstanceIdentity({
+ instanceId,
+ driverKind: DRIVER_KIND,
+ displayName,
+ accentColor,
+ continuationGroupKey: continuationIdentity.continuationKey,
+ });
+ const snapshotSettings = makeProviderSnapshotSettingsSource(effectiveConfig, serverSettings);
+ const resolveInstallation = yield* makeCachedProviderMaintenanceResolution(
+ resolveProviderMaintenanceCapabilitiesEffect(museMaintenance, {
+ binaryPath: effectiveConfig.binaryPath,
+ env: processEnvironment,
+ }).pipe(
+ Effect.provideService(ChildProcessSpawner.ChildProcessSpawner, spawner),
+ Effect.provideService(FileSystem.FileSystem, fileSystem),
+ Effect.provideService(Path.Path, path),
+ ),
+ );
+ const resolveMaintenance = (options?: { readonly fresh?: boolean }) =>
+ Effect.gen(function* () {
+ const capabilities = yield* resolveInstallation(options);
+ // The maintenance runner requests fresh capabilities around an explicit update
+ // and needs the native target version to verify that the command actually upgraded.
+ const latestVersion = options?.fresh
+ ? yield* latestMuseVersion(processEnvironment, { fresh: true }).pipe(
+ Effect.provideService(HttpClient.HttpClient, httpClient),
+ )
+ : undefined;
+ return latestVersion !== undefined ? { ...capabilities, latestVersion } : capabilities;
+ });
+ const snapshot = yield* makeManagedServerProvider>({
+ resolveMaintenance,
+ getSettings: snapshotSettings.getSettings,
+ streamSettings: snapshotSettings.streamSettings,
+ haveSettingsChanged: haveProviderSnapshotSettingsChanged,
+ initialSnapshot: (settings) =>
+ makePendingMuseProvider(settings.provider).pipe(Effect.map(stampIdentity)),
+ checkProvider: checkMuseProviderStatus(effectiveConfig, processEnvironment, cwd).pipe(
+ Effect.map(stampIdentity),
+ Effect.provideService(ChildProcessSpawner.ChildProcessSpawner, spawner),
+ Effect.provideService(FileSystem.FileSystem, fileSystem),
+ Effect.provideService(Path.Path, path),
+ ),
+ enrichSnapshot: ({ settings, snapshot: currentSnapshot, publishSnapshot }) =>
+ resolveMaintenance().pipe(
+ Effect.flatMap((maintenanceCapabilities) =>
+ enrichMuseSnapshot({
+ snapshot: currentSnapshot,
+ maintenanceCapabilities,
+ enableProviderUpdateChecks: settings.enableProviderUpdateChecks,
+ environment: processEnvironment,
+ }),
+ ),
+ Effect.provideService(HttpClient.HttpClient, httpClient),
+ Effect.flatMap(publishSnapshot),
+ ),
+ }).pipe(
+ Effect.mapError(
+ (cause) =>
+ new ProviderDriverError({
+ driver: DRIVER_KIND,
+ instanceId,
+ detail: "Failed to build Muse Code snapshot.",
+ cause,
+ }),
+ ),
+ );
+ const modelCatalog = snapshot.getSnapshot.pipe(Effect.map((current) => current.models));
+ const orchestrationAdapter = makeMuseAdapterV2({
+ instanceId,
+ settings: effectiveConfig,
+ environment: processEnvironment,
+ idAllocator,
+ serverConfig,
+ fileSystem,
+ modelCatalog,
+ ...(eventLoggers.native ? { nativeEventLogger: eventLoggers.native } : {}),
+ continuationRequests,
+ });
+ const textGeneration = yield* makeMuseTextGeneration(effectiveConfig, {
+ environment: processEnvironment,
+ modelCatalog,
+ });
+ return {
+ instanceId,
+ driverKind: DRIVER_KIND,
+ continuationIdentity,
+ displayName,
+ accentColor,
+ enabled,
+ snapshot,
+ orchestrationAdapter,
+ textGeneration,
+ } satisfies ProviderInstance;
+ }),
+};
diff --git a/apps/server/src/provider/MuseProvider.test.ts b/apps/server/src/provider/MuseProvider.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..70cea88d5b9a80a7c753c80d5dc0d9c0f9919027
--- /dev/null
+++ b/apps/server/src/provider/MuseProvider.test.ts
@@ -0,0 +1,167 @@
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { expect, it } from "@effect/vitest";
+import { MuseSettings } from "@t3tools/contracts";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Schema from "effect/Schema";
+import { vi } from "vite-plus/test";
+
+import { writeFakeCli } from "../testUtils/fakeCli.ts";
+import type { MuseSdkHost } from "./museSdk.ts";
+import { COMPACT_SLASH_COMMAND } from "./providerSnapshot.ts";
+import { checkMuseProviderStatus } from "./MuseProvider.ts";
+
+const settings = Schema.decodeSync(MuseSettings);
+const makeHost = (catalog: Record) => {
+ const host: MuseSdkHost = {
+ initializeResult: { grantedCapabilities: [] },
+ connection: {
+ request: vi.fn(async () => catalog),
+ command: vi.fn(async () => ({})),
+ mintCommandId: () => "test-command",
+ onNotification: () => {},
+ onServerRequest: () => {},
+ onProtocolError: () => {},
+ closed: new Promise(() => {}),
+ },
+ exited: new Promise(() => {}),
+ close: vi.fn(async () => {}),
+ };
+ return host;
+};
+const metaCatalog = {
+ providerId: "meta",
+ models: [
+ {
+ modelId: "muse-discovered",
+ displayLabel: "Muse Discovered",
+ providerId: "meta",
+ isDefault: true,
+ },
+ {
+ modelId: "foreign-model",
+ displayLabel: "Another provider",
+ providerId: "another",
+ isDefault: false,
+ },
+ ],
+};
+
+const fakeCli = (source = 'process.stdout.write("muse 1.0.3-R2198.1\\n");') =>
+ Effect.gen(function* () {
+ const fs = yield* FileSystem.FileSystem;
+ const directory = yield* fs.makeTempDirectoryScoped({ prefix: "muse-status-test-" });
+ return writeFakeCli({ directory, name: "muse", source });
+ });
+
+it.layer(NodeServices.layer)("Muse status", (it) => {
+ it.effect("does not start a host when disabled", () =>
+ Effect.gen(function* () {
+ const createHost = vi.fn(async () => makeHost(metaCatalog));
+ const snapshot = yield* checkMuseProviderStatus(settings({}), {}, undefined, createHost);
+ expect(snapshot.status).toBe("disabled");
+ expect(createHost).not.toHaveBeenCalled();
+ }),
+ );
+
+ it.effect("gives host-local install and login guidance for a missing binary", () =>
+ Effect.gen(function* () {
+ const snapshot = yield* checkMuseProviderStatus(
+ settings({ enabled: true, binaryPath: "/definitely-missing/muse" }),
+ );
+ expect(snapshot.installed).toBe(false);
+ expect(snapshot.status).toBe("error");
+ expect(snapshot.message).toContain("muse login");
+ expect(snapshot.message).toContain("this T3 server host");
+ }),
+ );
+
+ it.effect("does not expose CLI stderr or start an SDK host after a failed version check", () =>
+ Effect.scoped(
+ Effect.gen(function* () {
+ const binaryPath = yield* fakeCli(
+ 'process.stderr.write("secret-test-value");process.exit(2);',
+ );
+ const createHost = vi.fn(async () => makeHost(metaCatalog));
+ const snapshot = yield* checkMuseProviderStatus(
+ settings({ enabled: true, binaryPath }),
+ undefined,
+ undefined,
+ createHost,
+ );
+ expect(snapshot.installed).toBe(true);
+ expect(snapshot.status).toBe("error");
+ expect(snapshot.message).not.toContain("secret-test-value");
+ expect(createHost).not.toHaveBeenCalled();
+ }),
+ ),
+ );
+
+ it.effect("discovers the Meta catalog without treating it as authentication proof", () =>
+ Effect.scoped(
+ Effect.gen(function* () {
+ const binaryPath = yield* fakeCli();
+ const host = makeHost(metaCatalog);
+ const snapshot = yield* checkMuseProviderStatus(
+ settings({ enabled: true, binaryPath, customModels: ["muse-custom"] }),
+ undefined,
+ undefined,
+ async () => host,
+ );
+ expect(snapshot.status).toBe("ready");
+ expect(snapshot.message).toBeUndefined();
+ expect(snapshot.slashCommands).toEqual([COMPACT_SLASH_COMMAND]);
+ expect(snapshot.auth).toEqual({ status: "unknown" });
+ expect(snapshot.version).toBe("1.0.3-R2198.1");
+ expect(snapshot.models.map((model) => model.slug)).toEqual([
+ "muse-discovered",
+ "muse-custom",
+ ]);
+ const descriptor = snapshot.models[0]?.capabilities?.optionDescriptors?.[0];
+ expect(
+ descriptor?.type === "select" && descriptor.options.map((option) => option.id),
+ ).toEqual(["low", "medium", "high", "xhigh", "max"]);
+ expect(host.connection.request).toHaveBeenCalledWith("model/list", {});
+ expect(host.connection.command).not.toHaveBeenCalled();
+ expect(host.close).toHaveBeenCalledOnce();
+ }),
+ ),
+ );
+
+ it.effect("closes the host after malformed metadata and reports unavailable", () =>
+ Effect.scoped(
+ Effect.gen(function* () {
+ const binaryPath = yield* fakeCli();
+ const host = makeHost({ providerId: "meta", models: [{ modelId: 1 }] });
+ const snapshot = yield* checkMuseProviderStatus(
+ settings({ enabled: true, binaryPath }),
+ undefined,
+ undefined,
+ async () => host,
+ );
+ expect(snapshot.status).toBe("error");
+ expect(snapshot.auth.status).toBe("unknown");
+ expect(snapshot.models).toEqual([]);
+ expect(host.close).toHaveBeenCalledOnce();
+ }),
+ ),
+ );
+
+ it.effect("keeps an empty discovered catalog empty instead of advertising a fallback model", () =>
+ Effect.scoped(
+ Effect.gen(function* () {
+ const binaryPath = yield* fakeCli();
+ const host = makeHost({ providerId: "meta", models: [] });
+ const snapshot = yield* checkMuseProviderStatus(
+ settings({ enabled: true, binaryPath }),
+ undefined,
+ undefined,
+ async () => host,
+ );
+ expect(snapshot.status).toBe("warning");
+ expect(snapshot.models).toEqual([]);
+ expect(host.close).toHaveBeenCalledOnce();
+ }),
+ ),
+ );
+});
diff --git a/apps/server/src/provider/MuseProvider.ts b/apps/server/src/provider/MuseProvider.ts
new file mode 100644
index 0000000000000000000000000000000000000000..00d9d78526279e784dfed549256aab119004effc
--- /dev/null
+++ b/apps/server/src/provider/MuseProvider.ts
@@ -0,0 +1,153 @@
+import type { MuseSettings, ServerProviderModel } from "@t3tools/contracts";
+import { resolveSpawnCommand } from "@t3tools/shared/shell";
+import * as DateTime from "effect/DateTime";
+import * as Effect from "effect/Effect";
+import * as Option from "effect/Option";
+import * as Result from "effect/Result";
+import { ChildProcess } from "effect/process";
+
+import { createMuseSdkHost, makeMuseEnvironment } from "./museSdk.ts";
+import { parseMuseVersion } from "./museMaintenance.ts";
+import { discoverMuseModels, museModelCapabilities } from "./museModelCatalog.ts";
+import {
+ buildServerProvider,
+ COMPACT_SLASH_COMMAND,
+ DEFAULT_TIMEOUT_MS,
+ isCommandMissingCause,
+ providerModelsFromSettings,
+ spawnAndCollect,
+ type ProviderProbeResult,
+} from "./providerSnapshot.ts";
+
+const MUSE_PRESENTATION = {
+ displayName: "Muse Code",
+ showInteractionModeToggle: false,
+ reportsContextWindow: true,
+ // Muse has no native "accept edits" or reviewer-backed mode, so T3 offers only
+ // the two it maps directly: promptUnmatched and allowAll.
+ supportedRuntimeModes: ["approval-required", "full-access"],
+} as const;
+
+const FALLBACK_CAPABILITIES = museModelCapabilities();
+
+export const makePendingMuseProvider = Effect.fn("makePendingMuseProvider")(function* (
+ settings: MuseSettings,
+) {
+ return buildServerProvider({
+ presentation: MUSE_PRESENTATION,
+ enabled: settings.enabled,
+ checkedAt: DateTime.formatIso(yield* DateTime.now),
+ models: providerModelsFromSettings([], settings.customModels, FALLBACK_CAPABILITIES),
+ slashCommands: settings.enabled ? [COMPACT_SLASH_COMMAND] : [],
+ probe: {
+ installed: false,
+ version: null,
+ status: "warning",
+ auth: { status: "unknown" },
+ message: settings.enabled
+ ? "Checking Muse Code CLI availability..."
+ : "Muse Code is disabled in T3 Code settings.",
+ },
+ });
+});
+
+export const checkMuseProviderStatus = Effect.fn("checkMuseProviderStatus")(function* (
+ settings: MuseSettings,
+ environment?: NodeJS.ProcessEnv,
+ cwd?: string,
+ createHost: typeof createMuseSdkHost = createMuseSdkHost,
+) {
+ if (!settings.enabled) return yield* makePendingMuseProvider(settings);
+ const checkedAt = DateTime.formatIso(yield* DateTime.now);
+ // The driver passes a prepared environment; direct callers get the host's without META_API_KEY.
+ const museEnvironment = environment ?? makeMuseEnvironment();
+ const snapshot = (probe: ProviderProbeResult, models: ReadonlyArray = []) =>
+ buildServerProvider({
+ presentation: MUSE_PRESENTATION,
+ enabled: true,
+ checkedAt,
+ models: providerModelsFromSettings(models, settings.customModels, FALLBACK_CAPABILITIES),
+ slashCommands: [COMPACT_SLASH_COMMAND],
+ probe,
+ });
+ const versionResult = yield* Effect.gen(function* () {
+ const spawnCommand = yield* resolveSpawnCommand(settings.binaryPath, ["--version"], {
+ env: museEnvironment,
+ });
+ return yield* spawnAndCollect(
+ settings.binaryPath,
+ ChildProcess.make(spawnCommand.command, spawnCommand.args, {
+ env: museEnvironment,
+ shell: spawnCommand.shell,
+ ...(cwd ? { cwd } : {}),
+ }),
+ );
+ }).pipe(Effect.timeoutOption(DEFAULT_TIMEOUT_MS), Effect.result);
+
+ if (Result.isFailure(versionResult)) {
+ const missing = isCommandMissingCause(versionResult.failure);
+ return snapshot({
+ installed: !missing,
+ version: null,
+ status: "error",
+ auth: { status: "unknown" },
+ message: missing
+ ? "Muse Code CLI (`muse`) was not found. Install Muse Code and run `muse login` on this T3 server host."
+ : "Failed to execute Muse Code CLI. Check its binary path on this T3 server host.",
+ });
+ }
+ if (Option.isNone(versionResult.success)) {
+ return snapshot({
+ installed: true,
+ version: null,
+ status: "error",
+ auth: { status: "unknown" },
+ message: "Muse Code CLI version check timed out.",
+ });
+ }
+ const versionOutput = versionResult.success.value;
+ const version = parseMuseVersion(`${versionOutput.stdout}\n${versionOutput.stderr}`);
+ if (versionOutput.code !== 0) {
+ return snapshot({
+ installed: true,
+ version,
+ status: "error",
+ auth: { status: "unknown" },
+ message: "Muse Code CLI is installed but failed to run.",
+ });
+ }
+
+ const catalog = yield* discoverMuseModels(settings, museEnvironment, cwd, createHost).pipe(
+ Effect.scoped,
+ Effect.timeoutOption(12_000),
+ Effect.result,
+ );
+ if (Result.isFailure(catalog) || Option.isNone(catalog.success)) {
+ return snapshot({
+ installed: true,
+ version,
+ status: "error",
+ auth: { status: "unknown" },
+ message:
+ "Muse Code SDK could not read the model catalog. Check your Muse installation and run `muse login` on this T3 server host.",
+ });
+ }
+ const models = catalog.success.value;
+ // MSP has no auth signal, and model/list answers from Muse's cache even when logged out.
+ // Auth failures surface on the first turn instead.
+ return snapshot(
+ {
+ installed: true,
+ version,
+ auth: { status: "unknown" },
+ ...(models.length > 0
+ ? { status: "ready" }
+ : {
+ status: "warning",
+ message:
+ "Muse Code returned no models. Run `muse login` on this T3 server host and refresh its status.",
+ }),
+ },
+ models,
+ );
+});
diff --git a/apps/server/src/provider/ProviderRegistry.test.ts b/apps/server/src/provider/ProviderRegistry.test.ts
index 155eed099f253fc345cbbcc17358c02a406ad075..bfbff2e3db4c41f50885066dfd953cd0fdb3898c 100644
--- a/apps/server/src/provider/ProviderRegistry.test.ts
+++ b/apps/server/src/provider/ProviderRegistry.test.ts
@@ -3051,12 +3051,16 @@ it.layer(
"codex",
"cursor",
"grok",
+ "muse",
"opencode",
"pi",
]);
assert.strictEqual(cursorProvider?.enabled, false);
assert.strictEqual(cursorProvider?.status, "disabled");
assert.strictEqual(cursorProvider?.message, "Cursor is disabled in T3 Code settings.");
+ const museProvider = providers.find((provider) => provider.driver === "muse");
+ assert.strictEqual(museProvider?.enabled, false);
+ assert.strictEqual(museProvider?.status, "disabled");
assert.strictEqual(cursorSpawned, false);
}).pipe(Effect.provide(runtimeServices));
}),
diff --git a/apps/server/src/provider/builtInDrivers.ts b/apps/server/src/provider/builtInDrivers.ts
index 1e6d7beb61ea5723ebb8a256abe1ae50293b92d1..92d798945fc86f0ecbb25e27d2508ef75e4f8aba 100644
--- a/apps/server/src/provider/builtInDrivers.ts
+++ b/apps/server/src/provider/builtInDrivers.ts
@@ -27,6 +27,7 @@ import { CodexDriver, type CodexDriverEnv } from "./Drivers/CodexDriver.ts";
import { CursorDriver, type CursorDriverEnv } from "./Drivers/CursorDriver.ts";
import { GrokDriver, type GrokDriverEnv } from "./Drivers/GrokDriver.ts";
import { OpenCodeDriver, type OpenCodeDriverEnv } from "./Drivers/OpenCodeDriver.ts";
+import { MuseDriver, type MuseDriverEnv } from "./Drivers/MuseDriver.ts";
import { PiDriver, type PiDriverEnv } from "./Drivers/PiDriver.ts";
import type { AnyProviderDriver } from "./ProviderDriver.ts";
@@ -43,7 +44,8 @@ export type BuiltInDriversEnv =
| CursorDriverEnv
| GrokDriverEnv
| OpenCodeDriverEnv
- | PiDriverEnv;
+ | PiDriverEnv
+ | MuseDriverEnv;
/**
* Ordered list of built-in drivers. Order matters only for tie-breaking in
@@ -58,5 +60,6 @@ export const BUILT_IN_DRIVERS: ReadonlyArray=0.80.5", "status": "supported" },
{ "range": "<0.80.5", "status": "unsupported" }
]
+ },
+ {
+ "driver": "muse",
+ "t3CodeRange": ">=0.0.46",
+ "recommendedRange": ">=1.4.2",
+ "ranges": [
+ { "range": ">=1.4.2", "status": "supported" },
+ { "range": "<1.4.2", "status": "unknown" }
+ ]
}
],
"currentModels": {
diff --git a/apps/server/src/provider/museMaintenance.test.ts b/apps/server/src/provider/museMaintenance.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..e3a3ea2f16ac0760bf7260f16fd09d53991eea07
--- /dev/null
+++ b/apps/server/src/provider/museMaintenance.test.ts
@@ -0,0 +1,232 @@
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { expect, it } from "@effect/vitest";
+import { ProviderDriverKind, ProviderInstanceId, type ServerProvider } from "@t3tools/contracts";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import { HttpClient, HttpClientResponse } from "effect/http";
+
+import {
+ compareMuseVersions,
+ enrichMuseSnapshot,
+ museMaintenance,
+ latestMuseVersion,
+ parseMuseVersion,
+} from "./museMaintenance.ts";
+import {
+ ProviderVersionCache,
+ makeManualOnlyProviderMaintenanceCapabilities,
+} from "./providerMaintenance.ts";
+
+const maintenanceCapabilities = {
+ ...makeManualOnlyProviderMaintenanceCapabilities({
+ provider: ProviderDriverKind.make("muse"),
+ packageName: null,
+ }),
+ compareVersions: compareMuseVersions,
+};
+const snapshot: ServerProvider = {
+ instanceId: ProviderInstanceId.make("muse"),
+ driver: ProviderDriverKind.make("muse"),
+ enabled: true,
+ installed: true,
+ version: "1.0.3",
+ status: "ready",
+ auth: { status: "unknown" },
+ checkedAt: "2026-09-10T00:00:00.000Z",
+ models: [],
+ skills: [],
+ slashCommands: [],
+};
+
+it.layer(NodeServices.layer)("Muse maintenance", (it) => {
+ it.effect(
+ "refreshes a cached channel failure when an explicit update requests verification",
+ () =>
+ Effect.gen(function* () {
+ let requests = 0;
+ const check = Effect.gen(function* () {
+ expect(yield* latestMuseVersion({})).toBeNull();
+ expect(yield* latestMuseVersion({})).toBeNull();
+ expect(yield* latestMuseVersion({}, { fresh: true })).toBe("1.1.1-R10.1");
+ });
+ yield* check.pipe(
+ Effect.provideService(ProviderVersionCache, new Map()),
+ Effect.provideService(
+ HttpClient.HttpClient,
+ HttpClient.make((request) => {
+ requests += 1;
+ return Effect.succeed(
+ HttpClientResponse.fromWeb(
+ request,
+ requests === 1
+ ? new Response("unavailable", { status: 503 })
+ : Response.json({ version: "1.1.1-R10.1" }),
+ ),
+ );
+ }),
+ ),
+ );
+ expect(requests).toBe(2);
+ }),
+ );
+ it.effect(
+ "compares numeric native release revisions and preserves the CLI release identity",
+ () =>
+ Effect.sync(() => {
+ expect(parseMuseVersion("Muse Code 1.1.1 (1.1.1-R2514.1)")).toBe("1.1.1-R2514.1");
+ expect(compareMuseVersions("1.1.1-R9.1", "1.1.1-R10.1")).toBeLessThan(0);
+ expect(compareMuseVersions("1.1.1-R2514.1", "1.1.1-R2514.2")).toBeLessThan(0);
+ expect(compareMuseVersions("1.2.0-R1.1", "1.1.1-R2514.2")).toBeGreaterThan(0);
+ // A CLI that prints no revision compares by release, never as an older prerelease.
+ expect(compareMuseVersions("1.4.3", "1.4.3-R5018.1")).toBe(0);
+ expect(compareMuseVersions("1.4.2", "1.4.3-R5018.1")).toBeLessThan(0);
+ }),
+ );
+ it.effect(
+ "finds releases from the instance's channel and caches the native version, not the SDK version",
+ () =>
+ Effect.gen(function* () {
+ const requests: string[] = [];
+ const httpClient = HttpClient.make((request) => {
+ requests.push(request.url);
+ return Effect.succeed(
+ HttpClientResponse.fromWeb(request, Response.json({ version: "1.1.1-R2514.1" })),
+ );
+ });
+ const check = enrichMuseSnapshot({
+ snapshot,
+ maintenanceCapabilities,
+ enableProviderUpdateChecks: true,
+ environment: { MUSE_CHANNEL: "muse-canary" },
+ });
+ const [first, second] = yield* Effect.all([check, check], { concurrency: 1 }).pipe(
+ Effect.provideService(HttpClient.HttpClient, httpClient),
+ Effect.provideService(ProviderVersionCache, new Map()),
+ );
+ expect(first.versionAdvisory).toMatchObject({
+ status: "behind_latest",
+ currentVersion: "1.0.3",
+ latestVersion: "1.1.1-R2514.1",
+ canUpdate: false,
+ });
+ expect(second.versionAdvisory?.latestVersion).toBe("1.1.1-R2514.1");
+ expect(requests).toEqual(["https://api.meta.ai/muse-code/channels/muse-canary"]);
+ }),
+ );
+
+ it.effect("reports native release R9 behind R10 and R10 current against R9", () =>
+ Effect.gen(function* () {
+ for (const [current, latest, status] of [
+ ["1.4.2-R9.1", "1.4.2-R10.1", "behind_latest"],
+ ["1.4.2-R10.1", "1.4.2-R9.1", "current"],
+ ] as const) {
+ const result = yield* enrichMuseSnapshot({
+ snapshot: { ...snapshot, version: current },
+ maintenanceCapabilities,
+ enableProviderUpdateChecks: true,
+ environment: {},
+ }).pipe(
+ Effect.provideService(
+ HttpClient.HttpClient,
+ HttpClient.make((request) =>
+ Effect.succeed(
+ HttpClientResponse.fromWeb(request, Response.json({ version: latest })),
+ ),
+ ),
+ ),
+ Effect.provideService(ProviderVersionCache, new Map()),
+ );
+ expect(result.versionAdvisory?.status).toBe(status);
+ }
+ }),
+ );
+
+ it.effect("skips network checks when disabled, uninstalled or disabled in settings", () =>
+ Effect.gen(function* () {
+ for (const input of [
+ { snapshot, enableProviderUpdateChecks: false },
+ { snapshot: { ...snapshot, enabled: false }, enableProviderUpdateChecks: true },
+ { snapshot: { ...snapshot, installed: false }, enableProviderUpdateChecks: true },
+ ]) {
+ const result = yield* enrichMuseSnapshot({
+ ...input,
+ maintenanceCapabilities,
+ environment: {},
+ }).pipe(
+ Effect.provideService(
+ HttpClient.HttpClient,
+ HttpClient.make(() => Effect.die("Unexpected release request")),
+ ),
+ );
+ expect(result.versionAdvisory?.status).toBe("unknown");
+ }
+ }),
+ );
+
+ it.effect("tolerates invalid release manifests and unavailable channels", () =>
+ Effect.gen(function* () {
+ for (const response of [
+ Response.json({ version: 12 }),
+ Response.json({ version: "1.1.1" }),
+ new Response("unavailable", { status: 503 }),
+ ]) {
+ const result = yield* enrichMuseSnapshot({
+ snapshot,
+ maintenanceCapabilities,
+ enableProviderUpdateChecks: true,
+ environment: {},
+ }).pipe(
+ Effect.provideService(
+ HttpClient.HttpClient,
+ HttpClient.make((request) =>
+ Effect.succeed(HttpClientResponse.fromWeb(request, response)),
+ ),
+ ),
+ Effect.provideService(ProviderVersionCache, new Map()),
+ );
+ expect(result.status).toBe("ready");
+ expect(result.versionAdvisory?.status).toBe("unknown");
+ }
+ }),
+ );
+
+ it.effect("updates only a recognized launcher at the resolved instance path", () =>
+ Effect.scoped(
+ Effect.gen(function* () {
+ const fs = yield* FileSystem.FileSystem;
+ const directory = yield* fs.makeTempDirectoryScoped({ prefix: "muse-maintenance-" });
+ const binaryPath = `${directory}/custom muse`;
+ const context = {
+ binaryPath,
+ resolvedCommandPath: binaryPath,
+ realCommandPath: binaryPath,
+ platform: "linux" as const,
+ env: { MUSE_CHANNEL: "muse-canary" },
+ };
+ yield* fs.writeFileString(
+ binaryPath,
+ "#!/bin/bash\n# muse-code/launcher-2\n# MUSE_SYNC_UPDATE\n",
+ );
+ const result = yield* museMaintenance.resolve(context);
+ expect(result.update).toMatchObject({
+ executable: binaryPath,
+ args: ["--version"],
+ lockKey: `muse:${binaryPath}`,
+ env: {
+ MUSE_CHANNEL: "muse-canary",
+ MUSE_NO_AUTO_UPDATE: "0",
+ MUSE_SYNC_UPDATE: "1",
+ MUSE_UPDATE_INTERVAL_SECONDS: "0",
+ },
+ });
+ expect(result.update?.command).toBe(
+ `MUSE_CHANNEL=muse-canary MUSE_NO_AUTO_UPDATE=0 MUSE_SYNC_UPDATE=1 MUSE_UPDATE_INTERVAL_SECONDS=0 '${binaryPath}' --version`,
+ );
+ expect(result.compareVersions).toBe(compareMuseVersions);
+ yield* fs.writeFileString(binaryPath, "standalone binary");
+ expect((yield* museMaintenance.resolve(context)).update).toBeNull();
+ expect((yield* museMaintenance.resolve(null)).update).toBeNull();
+ }),
+ ),
+ );
+});
diff --git a/apps/server/src/provider/museMaintenance.ts b/apps/server/src/provider/museMaintenance.ts
new file mode 100644
index 0000000000000000000000000000000000000000..616c2dc06da53c3dea998664090ea968ca043050
--- /dev/null
+++ b/apps/server/src/provider/museMaintenance.ts
@@ -0,0 +1,139 @@
+import { ProviderDriverKind, type ServerProvider } from "@t3tools/contracts";
+import { compareSemverVersions } from "@t3tools/shared/semver";
+import * as DateTime from "effect/DateTime";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Schema from "effect/Schema";
+import { HttpClient, HttpClientRequest } from "effect/http";
+
+import {
+ enrichProviderSnapshotWithVersionAdvisory,
+ makeManualOnlyProviderMaintenanceCapabilities,
+ makeProviderMaintenanceCapabilities,
+ ProviderVersionCache,
+ type ProviderMaintenanceCapabilities,
+ type ProviderMaintenanceCapabilitiesResolver,
+} from "./providerMaintenance.ts";
+import { parseGenericCliVersion } from "./providerSnapshot.ts";
+
+const DRIVER = ProviderDriverKind.make("muse");
+/** Mirrors the official launcher, which reads MUSE_CHANNEL and accepts only these two. */
+const MUSE_CHANNELS = new Set(["muse-stable", "muse-canary"]);
+const ChannelManifest = Schema.Struct({
+ version: Schema.String.check(Schema.isPattern(/^\d+\.\d+\.\d+-R\d+(?:\.\d+)?$/)),
+});
+
+/** Muse prints both a display version and a release revision; prefer the latter. */
+export function parseMuseVersion(output: string): string | null {
+ return output.match(/\b\d+\.\d+\.\d+-R\d+(?:\.\d+)?\b/)?.[0] ?? parseGenericCliVersion(output);
+}
+
+function comparableMuseVersion(version: string): string {
+ // Make the release sequence numeric for semver comparison (R9 precedes R10).
+ return version.replace(/-R(\d+)(?:\.(\d+))?$/, "-release.$1.$2").replace(/\.$/, ".0");
+}
+
+const MUSE_REVISION = /-R\d+(?:\.\d+)?$/;
+
+/** A version printed without a revision is compared by its release alone. */
+export const compareMuseVersions = (current: string, latest: string) =>
+ MUSE_REVISION.test(current) === MUSE_REVISION.test(latest)
+ ? compareSemverVersions(comparableMuseVersion(current), comparableMuseVersion(latest))
+ : compareSemverVersions(current.replace(MUSE_REVISION, ""), latest.replace(MUSE_REVISION, ""));
+
+/** Only the official launcher owns an update channel; a standalone binary cannot update itself. */
+export const museMaintenance: ProviderMaintenanceCapabilitiesResolver = {
+ resolve: (context) =>
+ Effect.gen(function* () {
+ const manual = {
+ ...makeManualOnlyProviderMaintenanceCapabilities({ provider: DRIVER, packageName: null }),
+ compareVersions: compareMuseVersions,
+ };
+ if (!context || context.platform === "win32") return manual;
+ const fs = yield* FileSystem.FileSystem;
+ const isLauncher = yield* Effect.gen(function* () {
+ const stat = yield* fs.stat(context.realCommandPath);
+ if (Number(stat.size) > 128 * 1_024) return false;
+ const source = yield* fs.readFileString(context.realCommandPath);
+ return source.includes("muse-code/launcher-") && source.includes("MUSE_SYNC_UPDATE");
+ }).pipe(Effect.orElseSucceed(() => false));
+ if (!isLauncher) return manual;
+ // The launcher has no `update` subcommand. Its documented launch environment
+ // forces a synchronous refresh of this executable's own installation.
+ const updateEnv = {
+ ...(context.env.MUSE_CHANNEL ? { MUSE_CHANNEL: context.env.MUSE_CHANNEL } : {}),
+ MUSE_NO_AUTO_UPDATE: "0",
+ MUSE_SYNC_UPDATE: "1",
+ MUSE_UPDATE_INTERVAL_SECONDS: "0",
+ };
+ return {
+ ...makeProviderMaintenanceCapabilities({
+ provider: DRIVER,
+ packageName: null,
+ updateExecutable: context.resolvedCommandPath,
+ updateArgs: ["--version"],
+ updateCommand: [
+ ...Object.entries(updateEnv).map(([key, value]) => `${key}=${shellQuote(value)}`),
+ shellQuote(context.resolvedCommandPath),
+ "--version",
+ ].join(" "),
+ updateLockKey: `muse:${context.realCommandPath}`,
+ platform: context.platform,
+ env: { ...context.env, ...updateEnv },
+ }),
+ compareVersions: compareMuseVersions,
+ };
+ }),
+};
+
+function shellQuote(word: string) {
+ return /^[\w./:@=-]+$/.test(word) ? word : `'${word.replaceAll("'", "'\\''")}'`;
+}
+
+export const latestMuseVersion = Effect.fn("latestMuseVersion")(function* (
+ environment: NodeJS.ProcessEnv,
+ options?: { readonly fresh?: boolean },
+) {
+ const channel = environment.MUSE_CHANNEL || "muse-stable";
+ if (!MUSE_CHANNELS.has(channel)) return null;
+ const channelUrl = `https://api.meta.ai/muse-code/channels/${channel}`;
+ const cache = yield* ProviderVersionCache;
+ const key = `muse:${channelUrl}`;
+ const now = DateTime.toEpochMillis(yield* DateTime.now);
+ const cached = cache.get(key);
+ if (!options?.fresh && cached && cached.expiresAt > now) return cached.version;
+ const client = yield* HttpClient.HttpClient;
+ const version = yield* client.execute(HttpClientRequest.get(channelUrl)).pipe(
+ Effect.flatMap((response) =>
+ response.status >= 200 && response.status < 300
+ ? response.json.pipe(
+ Effect.flatMap(Schema.decodeUnknownEffect(ChannelManifest)),
+ Effect.map((manifest) => parseMuseVersion(manifest.version)),
+ )
+ : Effect.succeed(null),
+ ),
+ Effect.timeout(4_000),
+ Effect.orElseSucceed(() => null),
+ );
+ cache.set(key, { version, expiresAt: now + (version === null ? 60_000 : 60 * 60 * 1_000) });
+ return version;
+});
+
+/** Feed Muse's release channel into the same advisory and notification flow as other drivers. */
+export const enrichMuseSnapshot = Effect.fn("enrichMuseSnapshot")(function* (input: {
+ readonly snapshot: ServerProvider;
+ readonly maintenanceCapabilities: ProviderMaintenanceCapabilities;
+ readonly enableProviderUpdateChecks: boolean;
+ readonly environment: NodeJS.ProcessEnv;
+}) {
+ const { snapshot } = input;
+ const latestVersion =
+ input.enableProviderUpdateChecks && snapshot.enabled && snapshot.installed && snapshot.version
+ ? yield* latestMuseVersion(input.environment)
+ : null;
+ return yield* enrichProviderSnapshotWithVersionAdvisory(
+ snapshot,
+ { ...input.maintenanceCapabilities, latestVersion },
+ { enableProviderUpdateChecks: input.enableProviderUpdateChecks },
+ );
+});
diff --git a/apps/server/src/provider/museModelCatalog.test.ts b/apps/server/src/provider/museModelCatalog.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..2679be85e85350de213b715fa3a50e495fe540ce
--- /dev/null
+++ b/apps/server/src/provider/museModelCatalog.test.ts
@@ -0,0 +1,98 @@
+import { describe, expect, it } from "@effect/vitest";
+import { MuseSettings } from "@t3tools/contracts";
+import * as Effect from "effect/Effect";
+import * as Schema from "effect/Schema";
+
+import type { MuseSdkHost } from "./museSdk.ts";
+import {
+ discoverMuseModels,
+ museModelCapabilities,
+ resolveMuseReasoningEffort,
+} from "./museModelCatalog.ts";
+
+const settings = Schema.decodeSync(MuseSettings)({});
+const host = (catalog: Record): MuseSdkHost => ({
+ connection: {
+ request: async () => catalog,
+ command: async () => ({}),
+ mintCommandId: () => "test",
+ onNotification: () => {},
+ onServerRequest: () => {},
+ onProtocolError: () => {},
+ closed: new Promise(() => {}),
+ },
+ initializeResult: { grantedCapabilities: [] },
+ exited: new Promise(() => {}),
+ close: async () => {},
+});
+
+const row = (modelId: string, extra: Record = {}) => ({
+ modelId,
+ displayLabel: modelId,
+ providerId: "meta",
+ profileId: "tbh",
+ isDefault: false,
+ contextLimit: 1_000_000,
+ ...extra,
+});
+
+describe("Muse model catalog", () => {
+ it.effect("uses the labels, efforts and defaults that model/list sends", () =>
+ Effect.gen(function* () {
+ const models = yield* discoverMuseModels(settings, {}, undefined, async () =>
+ host({
+ providerId: "meta",
+ profileId: "tbh",
+ source: "providerCatalog",
+ models: [
+ row("restful-walrus", {
+ displayLabel: " Restful Walrus ",
+ isDefault: true,
+ variants: ["minimal", "low", "high", "future-tier"],
+ reasoningEffortVariants: [{ tier: "low", description: "Quick" }],
+ defaultReasoningEffort: "high",
+ }),
+ row("older-host"),
+ row("unknown-efforts", { variants: "unknown" }),
+ row("foreign", { providerId: "another" }),
+ ],
+ }),
+ ).pipe(Effect.scoped);
+ expect(models.map(({ slug, name, isDefault }) => [slug, name, isDefault])).toEqual([
+ ["restful-walrus", "Restful Walrus", true],
+ ["older-host", "older-host", false],
+ ["unknown-efforts", "unknown-efforts", false],
+ ]);
+ expect(models[0]?.capabilities?.optionDescriptors).toEqual([
+ {
+ id: "reasoningEffort",
+ label: "Reasoning",
+ type: "select",
+ currentValue: "high",
+ options: [
+ { id: "minimal", label: "Minimal" },
+ { id: "low", label: "Low", description: "Quick" },
+ { id: "high", label: "High", isDefault: true },
+ ],
+ },
+ ]);
+ // Older hosts and "unknown" fall back to Muse's documented tiers.
+ expect(models[1]?.capabilities).toEqual(museModelCapabilities());
+ expect(models[2]?.capabilities).toEqual(museModelCapabilities());
+ }),
+ );
+
+ it("normalizes saved and implicit efforts against the selected model before dispatch", () => {
+ const fallback = museModelCapabilities();
+ expect(resolveMuseReasoningEffort(fallback, undefined)).toBe("high");
+ expect(resolveMuseReasoningEffort(fallback, "max")).toBe("max");
+ expect(resolveMuseReasoningEffort(fallback, "ultra")).toBe("high");
+ const restricted = museModelCapabilities({ variants: ["xhigh"] });
+ expect(resolveMuseReasoningEffort(restricted, undefined)).toBe("xhigh");
+ expect(resolveMuseReasoningEffort(restricted, "low")).toBe("xhigh");
+ expect(
+ resolveMuseReasoningEffort(museModelCapabilities({ variants: [] }), "max"),
+ ).toBeUndefined();
+ expect(resolveMuseReasoningEffort(undefined, "max")).toBe("max");
+ });
+});
diff --git a/apps/server/src/provider/museModelCatalog.ts b/apps/server/src/provider/museModelCatalog.ts
new file mode 100644
index 0000000000000000000000000000000000000000..7a75cf26f6d5851e8181b8e358c79b885efb4b61
--- /dev/null
+++ b/apps/server/src/provider/museModelCatalog.ts
@@ -0,0 +1,138 @@
+import type { SendUserTurnOptions } from "@muse-code/sdk";
+import type { ModelCapabilities, MuseSettings, ServerProviderModel } from "@t3tools/contracts";
+import { createModelCapabilities, getProviderOptionDescriptors } from "@t3tools/shared/model";
+import * as Effect from "effect/Effect";
+import * as Schema from "effect/Schema";
+import { createMuseSdkHost, createMuseSdkHostEffect, type MuseSdkHost } from "./museSdk.ts";
+
+type MuseReasoningEffort = NonNullable["reasoningEffort"]>;
+
+const REASONING_EFFORT_LABELS = {
+ none: "None",
+ minimal: "Minimal",
+ low: "Low",
+ medium: "Medium",
+ high: "High",
+ xhigh: "Extra High",
+ max: "Max",
+ ultra: "Ultra",
+} satisfies Record;
+
+const isMuseReasoningEffort = (tier: string): tier is MuseReasoningEffort =>
+ Object.hasOwn(REASONING_EFFORT_LABELS, tier);
+
+/** Used when Muse does not report a model's efforts (custom slugs, older hosts, "unknown"). */
+const FALLBACK_EFFORTS = ["low", "medium", "high", "xhigh", "max"];
+/** Muse's own CLI default. */
+const FALLBACK_DEFAULT_EFFORT = "high";
+
+const ModelCatalogEntry = Schema.Struct({
+ modelId: Schema.NonEmptyString,
+ displayLabel: Schema.String,
+ providerId: Schema.String,
+ isDefault: Schema.Boolean,
+ variants: Schema.optional(Schema.Union([Schema.Array(Schema.String), Schema.Literal("unknown")])),
+ defaultReasoningEffort: Schema.optional(Schema.String),
+ reasoningEffortVariants: Schema.optional(
+ Schema.Array(
+ Schema.Struct({ tier: Schema.String, description: Schema.optional(Schema.String) }),
+ ),
+ ),
+});
+const decodeModelList = Schema.decodeUnknownEffect(
+ Schema.Struct({ providerId: Schema.String, models: Schema.Array(ModelCatalogEntry) }),
+);
+
+/** Builds the reasoning picker from a `model/list` row, or the fallback when called without one. */
+export function museModelCapabilities(
+ model?: Pick<
+ typeof ModelCatalogEntry.Type,
+ "variants" | "defaultReasoningEffort" | "reasoningEffortVariants"
+ >,
+): ModelCapabilities {
+ const reported = model?.variants !== undefined && model.variants !== "unknown";
+ const efforts = (reported ? model.variants : FALLBACK_EFFORTS).filter(isMuseReasoningEffort);
+ const preferredDefault = reported ? model?.defaultReasoningEffort : FALLBACK_DEFAULT_EFFORT;
+ const defaultValue = efforts.find((tier) => tier === preferredDefault) ?? efforts[0];
+ if (!defaultValue) return createModelCapabilities({ optionDescriptors: [] });
+ return createModelCapabilities({
+ optionDescriptors: [
+ {
+ id: "reasoningEffort",
+ label: "Reasoning",
+ type: "select",
+ currentValue: defaultValue,
+ options: efforts.map((id) => {
+ const description = model?.reasoningEffortVariants?.find(
+ (variant) => variant.tier === id,
+ )?.description;
+ return {
+ id,
+ label: REASONING_EFFORT_LABELS[id],
+ ...(id === defaultValue ? { isDefault: true } : {}),
+ ...(description ? { description } : {}),
+ };
+ }),
+ },
+ ],
+ });
+}
+
+/** Apply the advertised model choices to saved, remembered and implicit efforts at dispatch. */
+export function resolveMuseReasoningEffort(
+ capabilities: ModelCapabilities | null | undefined,
+ effort: string | undefined,
+): string | undefined {
+ if (!capabilities) return effort;
+ const descriptor = getProviderOptionDescriptors({
+ caps: capabilities,
+ selections: effort ? [{ id: "reasoningEffort", value: effort }] : undefined,
+ }).find((descriptor) => descriptor.id === "reasoningEffort");
+ if (descriptor?.type !== "select") return undefined;
+ return descriptor.options.find((option) => option.id === descriptor.currentValue)?.id;
+}
+
+class MuseCatalogError extends Schema.TaggedError()("MuseCatalogError", {
+ detail: Schema.String,
+}) {}
+
+export const discoverMuseModels = Effect.fn("discoverMuseModels")(function* (
+ settings: MuseSettings,
+ environment: NodeJS.ProcessEnv | undefined,
+ cwd?: string,
+ createHost: typeof createMuseSdkHost = createMuseSdkHost,
+) {
+ const host = yield* Effect.acquireRelease(
+ createMuseSdkHostEffect(
+ {
+ binaryPath: settings.binaryPath,
+ ...(environment ? { environment } : {}),
+ ...(cwd ? { cwd } : {}),
+ readOnly: true,
+ startupTimeoutMs: 8_000,
+ },
+ createHost,
+ ),
+ (host: MuseSdkHost) => Effect.promise(() => host.close()),
+ { interruptible: true },
+ );
+ const result = yield* Effect.tryPromise(() => host.connection.request("model/list", {}));
+ const catalog = yield* decodeModelList(result);
+ if (catalog.providerId !== "meta") {
+ return yield* new MuseCatalogError({ detail: "Muse returned a catalog for another provider." });
+ }
+ const seen = new Set();
+ return catalog.models.flatMap((model): ServerProviderModel[] => {
+ if (model.providerId !== "meta" || seen.has(model.modelId)) return [];
+ seen.add(model.modelId);
+ return [
+ {
+ slug: model.modelId,
+ name: model.displayLabel.trim() || model.modelId,
+ isCustom: false,
+ isDefault: model.isDefault,
+ capabilities: museModelCapabilities(model),
+ },
+ ];
+ });
+});
diff --git a/apps/server/src/provider/museProtocol.test.ts b/apps/server/src/provider/museProtocol.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..479da19a4fdb99a01a31c9f16938ae708eb5531e
--- /dev/null
+++ b/apps/server/src/provider/museProtocol.test.ts
@@ -0,0 +1,17 @@
+import { describe, expect, it } from "vite-plus/test";
+
+import { museApprovalChoices } from "./museProtocol.ts";
+
+// Muse 1.4.3 shell approvals offer only `abort`; the muse_permission replay covers that case.
+describe("Muse approval choices", () => {
+ it("keeps denied and abort separate when Muse offers both", () => {
+ const choices = museApprovalChoices({
+ availableChoices: [
+ { choiceId: "deny", label: "Deny", decision: "denied", scope: "once" },
+ { choiceId: "abort", label: "Stop", decision: "abort", scope: "once" },
+ ],
+ });
+ expect(choices.get("decline")?.choiceId).toBe("deny");
+ expect(choices.get("cancel")?.choiceId).toBe("abort");
+ });
+});
diff --git a/apps/server/src/provider/museProtocol.ts b/apps/server/src/provider/museProtocol.ts
new file mode 100644
index 0000000000000000000000000000000000000000..8d82fd9611e86ce8b81fcea2bd1b4b1d34ef8078
--- /dev/null
+++ b/apps/server/src/provider/museProtocol.ts
@@ -0,0 +1,226 @@
+import type { ProviderApprovalDecision } from "@t3tools/contracts";
+import * as Schema from "effect/Schema";
+
+const NonEmptyString = Schema.String.check(Schema.isMinLength(1));
+
+const MuseUsage = Schema.Struct({
+ inputTokens: Schema.Int.check(Schema.isGreaterThanOrEqualTo(0)),
+ outputTokens: Schema.Int.check(Schema.isGreaterThanOrEqualTo(0)),
+ cachedTokens: Schema.Int.check(Schema.isGreaterThanOrEqualTo(0)),
+ reasoningTokens: Schema.Int.check(Schema.isGreaterThanOrEqualTo(0)),
+ cacheReadTokens: Schema.optional(Schema.Int.check(Schema.isGreaterThanOrEqualTo(0))),
+ cacheWriteTokens: Schema.optional(Schema.Int.check(Schema.isGreaterThanOrEqualTo(0))),
+});
+
+export const MuseItem = Schema.Struct({
+ /** `workflow`: the launched entry's name. */
+ entryId: Schema.optional(Schema.String),
+ /** `workflow`: each child agent's latest attempt, re-sent whole on every change. */
+ children: Schema.optional(
+ Schema.Array(
+ Schema.Struct({
+ childId: NonEmptyString,
+ attempt: Schema.Int,
+ status: Schema.String,
+ label: Schema.optional(Schema.String),
+ terminal: Schema.optional(Schema.String),
+ durationMs: Schema.optional(Schema.Finite),
+ failureReason: Schema.optional(Schema.String),
+ }),
+ ),
+ ),
+ itemId: NonEmptyString,
+ kind: NonEmptyString,
+ revision: Schema.Int.check(Schema.isGreaterThan(0)),
+ status: NonEmptyString,
+ turnId: Schema.optional(Schema.NullOr(Schema.String)),
+ text: Schema.optional(Schema.String),
+ summary: Schema.optional(Schema.Array(Schema.String)),
+ tool: Schema.optional(Schema.String),
+ args: Schema.optional(Schema.String),
+ visibleOutput: Schema.optional(Schema.String),
+ truncated: Schema.optional(Schema.Boolean),
+ failureReason: Schema.optional(Schema.String),
+ fallbackText: Schema.optional(Schema.String),
+ commandText: Schema.optional(Schema.String),
+ exitCode: Schema.optional(Schema.Int),
+ durationMs: Schema.optional(Schema.Finite),
+ subagentId: Schema.optional(Schema.String),
+ childSessionId: Schema.optional(Schema.String),
+ objective: Schema.optional(Schema.String),
+ role: Schema.optional(Schema.String),
+ controlStatus: Schema.optional(Schema.String),
+ result: Schema.optional(
+ Schema.Struct({ summary: Schema.String, text: Schema.optional(Schema.String) }),
+ ),
+ usage: Schema.optional(MuseUsage),
+ outcome: Schema.optional(Schema.String),
+ trigger: Schema.optional(Schema.String),
+ reason: Schema.optional(Schema.String),
+});
+export type MuseItem = typeof MuseItem.Type;
+
+export const MuseSessionResult = Schema.Struct({
+ session: Schema.Struct({
+ sessionId: NonEmptyString,
+ modelId: Schema.optional(Schema.NullOr(Schema.String)),
+ activeTurnId: Schema.optional(Schema.NullOr(Schema.String)),
+ }),
+ history: Schema.optional(
+ Schema.Struct({
+ items: Schema.NullOr(Schema.Array(MuseItem)),
+ snapshot: Schema.optional(
+ Schema.NullOr(
+ Schema.Struct({
+ schemaVersion: Schema.optional(Schema.Int),
+ state: Schema.Struct({ items: Schema.Array(MuseItem) }),
+ }),
+ ),
+ ),
+ }),
+ ),
+});
+export const MuseTurnStartResult = Schema.Struct({ turnId: NonEmptyString });
+
+export const MuseApproval = Schema.Struct({
+ approvalId: NonEmptyString,
+ protectedWrite: Schema.optional(Schema.Boolean),
+ judgeEscalated: Schema.optional(Schema.Boolean),
+ sessionId: NonEmptyString,
+ turnId: Schema.optional(Schema.String),
+ itemId: Schema.optional(Schema.String),
+ toolName: Schema.optional(Schema.String),
+ rawArgs: Schema.optional(Schema.String),
+ currentRequirementId: Schema.Struct({ approvalId: NonEmptyString, sourceIndex: Schema.Int }),
+ availableChoices: Schema.Array(
+ Schema.Struct({
+ choiceId: NonEmptyString,
+ label: Schema.String,
+ decision: NonEmptyString,
+ scope: Schema.String,
+ }),
+ ),
+ subject: Schema.Struct({
+ kind: Schema.String,
+ access: Schema.optional(Schema.String),
+ command: Schema.optional(Schema.String),
+ path: Schema.optional(Schema.String),
+ host: Schema.optional(Schema.String),
+ target: Schema.optional(Schema.String),
+ }),
+});
+export type MuseApproval = typeof MuseApproval.Type;
+
+export const MuseUserInput = Schema.Struct({
+ userInputId: NonEmptyString,
+ sessionId: NonEmptyString,
+ turnId: NonEmptyString,
+ questions: Schema.Array(
+ Schema.Struct({
+ id: NonEmptyString,
+ header: Schema.String,
+ question: Schema.String,
+ options: Schema.Array(
+ Schema.Struct({ label: Schema.String, description: Schema.optional(Schema.String) }),
+ ),
+ selection: Schema.Struct({
+ mode: Schema.Literals(["single", "multiple"]),
+ minSelections: Schema.optional(Schema.Int),
+ maxSelections: Schema.optional(Schema.Int),
+ }),
+ }),
+ ),
+});
+export type MuseUserInput = typeof MuseUserInput.Type;
+
+export const MuseTokenUsageEvent = Schema.Struct({
+ turnId: NonEmptyString,
+ promptTokens: Schema.Int.check(Schema.isGreaterThanOrEqualTo(0)),
+ usage: MuseUsage,
+});
+export const MuseContextUsage = Schema.Struct({
+ usedTokens: Schema.Int.check(Schema.isGreaterThanOrEqualTo(0)),
+ windowTokens: Schema.optional(Schema.Int.check(Schema.isGreaterThan(0))),
+});
+export const MuseTodoList = Schema.Struct({
+ items: Schema.Array(Schema.Struct({ text: Schema.String, status: Schema.String })),
+});
+export const MuseTurnCompleted = Schema.Struct({
+ turnId: NonEmptyString,
+ terminal: NonEmptyString,
+ reason: Schema.optional(Schema.String),
+ error: Schema.optional(Schema.Struct({ message: Schema.String })),
+ usage: Schema.optional(MuseUsage),
+});
+export const MuseTurnRetryScheduled = Schema.Struct({
+ turnId: NonEmptyString,
+ nextAttempt: Schema.Int.check(Schema.isGreaterThan(0)),
+ maxAttempts: Schema.Int.check(Schema.isGreaterThan(0)),
+ reason: NonEmptyString,
+ retryDelayMs: Schema.Finite.check(Schema.isGreaterThanOrEqualTo(0)),
+});
+export const MuseCompactResult = Schema.Struct({
+ status: Schema.String,
+ reason: Schema.optional(Schema.String),
+});
+
+export const MuseItemEvent = Schema.Struct({ item: MuseItem });
+export const MuseDelta = Schema.Struct({
+ itemId: NonEmptyString,
+ delta: Schema.String,
+ field: Schema.optional(Schema.String),
+});
+
+/** The T3 decision for one native Muse choice, or none when T3 has no equivalent. */
+export function museApprovalDecision(
+ choice: Pick,
+): ProviderApprovalDecision | undefined {
+ switch (choice.decision) {
+ case "approved":
+ return "accept";
+ case "approvedForSession":
+ return "acceptForSession";
+ case "approvedPolicyAmendment":
+ return choice.scope === "session"
+ ? "acceptForSession"
+ : choice.scope === "localPersistent"
+ ? "acceptAlways"
+ : undefined;
+ case "denied":
+ case "deniedPolicyAmendment":
+ return "decline";
+ case "abort":
+ return "cancel";
+ default:
+ return undefined;
+ }
+}
+
+/**
+ * Maps each canonical decision to one native choice. Muse shell approvals offer
+ * no `denied` choice, only `abort` ("Reject"), so `decline` falls back to it.
+ */
+export function museApprovalChoices(approval: Pick) {
+ const choices = new Map();
+ const rank = (choice: MuseApproval["availableChoices"][number]) =>
+ (choice.scope === "once" ? 0 : choice.scope === "session" ? 2 : 4) +
+ (choice.decision.endsWith("PolicyAmendment") ? 1 : 0);
+ for (const choice of approval.availableChoices) {
+ const decision = museApprovalDecision(choice);
+ if (!decision) continue;
+ const previous = choices.get(decision);
+ if (!previous || rank(choice) < rank(previous)) choices.set(decision, choice);
+ }
+ const abort = choices.get("cancel");
+ if (!choices.has("decline") && abort) choices.set("decline", abort);
+ return choices;
+}
+
+/** The approval buttons to show: one per native choice, preferring `decline` over `cancel`. */
+export function museApprovalOptions(approval: Pick) {
+ const choices = museApprovalChoices(approval);
+ const declineChoiceId = choices.get("decline")?.choiceId;
+ return [...choices]
+ .filter(([decision, choice]) => decision !== "cancel" || choice.choiceId !== declineChoiceId)
+ .map(([decision, choice]) => ({ decision, label: choice.label }));
+}
diff --git a/apps/server/src/provider/museSdk.test.ts b/apps/server/src/provider/museSdk.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..ff8de0c1abf946839074321a45a5a223d60c95c6
--- /dev/null
+++ b/apps/server/src/provider/museSdk.test.ts
@@ -0,0 +1,266 @@
+import { spawnMspConnection, type MspHandshake, type SpawnedMspConnection } from "@muse-code/sdk";
+import { it } from "@effect/vitest";
+import * as Effect from "effect/Effect";
+import * as Fiber from "effect/Fiber";
+import { afterEach, describe, expect, vi } from "vite-plus/test";
+import {
+ createMuseSdkHost,
+ createMuseSdkHostEffect,
+ makeMuseEnvironment,
+ museApprovalMode,
+ type MuseSdkHost,
+} from "./museSdk.ts";
+
+vi.mock("@muse-code/sdk", () => ({ spawnMspConnection: vi.fn() }));
+
+function pending() {
+ let resolve = (_value: A) => {};
+ let reject = (_error: unknown) => {};
+ const promise = new Promise((yes, no) => {
+ resolve = yes;
+ reject = no;
+ });
+ return { promise, resolve, reject };
+}
+
+function mockSpawn() {
+ const startup = pending();
+ const shutdown = pending<{ code: number; signal: null }>();
+ const closing = pending();
+ const initializing = pending();
+ const initialize = vi.fn(() => {
+ initializing.resolve();
+ return startup.promise;
+ });
+ const close = vi.fn(() => {
+ closing.resolve();
+ return shutdown.promise;
+ });
+ const handshake = { initialize, close } as unknown as MspHandshake;
+ vi.mocked(spawnMspConnection).mockReturnValue(handshake);
+ const ready = {
+ connection: {},
+ initializeResult: { grantedCapabilities: [], schema: { version: 1 } },
+ exited: shutdown.promise,
+ fingerprintWarning: { warning: "additive optional" },
+ } as unknown as SpawnedMspConnection;
+ return { startup, shutdown, closing, initializing, initialize, close, ready };
+}
+
+afterEach(() => {
+ vi.useRealTimers();
+ vi.clearAllMocks();
+});
+
+describe("Muse SDK host", () => {
+ it.each(["META_API_KEY", "meta_api_key", "Meta_Api_Key"])(
+ "excludes %s without reading its value or mutating the supplied environment",
+ (key) => {
+ const source: NodeJS.ProcessEnv = { PATH: "/bin", MUSE_TEST: "yes" };
+ const read = vi.fn(() => {
+ throw new Error("The API override must not be read.");
+ });
+ Object.defineProperty(source, key, { enumerable: true, get: read });
+ expect(makeMuseEnvironment(source)).toEqual({
+ PATH: "/bin",
+ MUSE_TEST: "yes",
+ MUSE_NO_AUTO_UPDATE: "1",
+ });
+ expect(read).not.toHaveBeenCalled();
+ expect(Object.keys(source)).toContain(key);
+ },
+ );
+
+ it("selects full access explicitly and keeps other runtime modes sandboxed", async () => {
+ for (const mode of ["approval-required", "auto-accept-edits", "auto", "full-access"] as const) {
+ const fake = mockSpawn();
+ const running = createMuseSdkHost({
+ binaryPath: "/custom/muse",
+ cwd: "/workspace",
+ runtimeMode: mode,
+ environment: { PATH: "/bin" },
+ });
+ expect(vi.mocked(spawnMspConnection).mock.lastCall?.[0]).toMatchObject({
+ command: "/custom/muse",
+ cwd: "/workspace",
+ args:
+ mode === "full-access"
+ ? ["serve", "--trust-workspace", "--disable-sandbox"]
+ : ["serve", "--trust-workspace"],
+ });
+ expect(museApprovalMode(mode)).toBe(mode === "full-access" ? "allowAll" : "promptUnmatched");
+ fake.startup.resolve(fake.ready);
+ const host = await running;
+ fake.shutdown.resolve({ code: 0, signal: null });
+ await host.close();
+ await host.close();
+ expect(fake.close).toHaveBeenCalledOnce();
+ }
+ });
+
+ it("bounds startup and waits for native shutdown after timeout", async () => {
+ vi.useFakeTimers();
+ const fake = mockSpawn();
+ const startup = createMuseSdkHost({ binaryPath: "muse", startupTimeoutMs: 30 });
+ let settled = false;
+ const outcome = startup.then(
+ () => {
+ settled = true;
+ },
+ (error: unknown) => {
+ settled = true;
+ return error;
+ },
+ );
+ await vi.advanceTimersByTimeAsync(31);
+ expect(fake.close).toHaveBeenCalledOnce();
+ expect(settled).toBe(false);
+ fake.shutdown.resolve({ code: 0, signal: null });
+ expect(await outcome).toMatchObject({ message: "Muse SDK initialization timed out." });
+ });
+
+ it("closes the pre-handshake host on abort and rejects only after shutdown", async () => {
+ const fake = mockSpawn();
+ const abort = new AbortController();
+ const started = createMuseSdkHost({ binaryPath: "muse", signal: abort.signal });
+ const reason = new Error("Cancelled by caller");
+ const outcome = started.catch((error: unknown) => error);
+ abort.abort(reason);
+ expect(fake.close).toHaveBeenCalledOnce();
+ fake.shutdown.resolve({ code: 0, signal: null });
+ expect(await outcome).toBe(reason);
+ });
+
+ it("closes rejected initialization and keeps successful schema advisories usable", async () => {
+ const failed = mockSpawn();
+ const started = createMuseSdkHost({ binaryPath: "muse" });
+ const outcome = started.catch((error: unknown) => error);
+ failed.startup.reject(new Error("Handshake failed"));
+ failed.shutdown.resolve({ code: 0, signal: null });
+ expect(await outcome).toMatchObject({ message: "Handshake failed" });
+ expect(failed.close).toHaveBeenCalledOnce();
+ const success = mockSpawn();
+ const ready = createMuseSdkHost({ binaryPath: "muse", readOnly: true });
+ success.startup.resolve(success.ready);
+ const host = await ready;
+ expect(host.initializeResult.grantedCapabilities).toEqual([]);
+ expect(vi.mocked(spawnMspConnection).mock.lastCall?.[0].args).toEqual([
+ "serve",
+ "--disable-shell",
+ "--disable-write",
+ "--no-session-log",
+ ]);
+ success.shutdown.resolve({ code: 0, signal: null });
+ await host.close();
+ });
+
+ it.each([undefined, 2])(
+ "rejects unsupported envelope version %s and awaits shutdown",
+ async (version) => {
+ const fake = mockSpawn();
+ const started = createMuseSdkHost({ binaryPath: "muse" });
+ let settled = false;
+ const outcome = started.catch((error: unknown) => {
+ settled = true;
+ return error;
+ });
+ fake.startup.resolve({
+ ...fake.ready,
+ initializeResult: {
+ ...fake.ready.initializeResult,
+ schema: { fingerprint: "test", version },
+ },
+ } as unknown as SpawnedMspConnection);
+ await fake.closing.promise;
+ expect(fake.close).toHaveBeenCalledOnce();
+ expect(settled).toBe(false);
+ fake.shutdown.resolve({ code: 0, signal: null });
+ expect(await outcome).toMatchObject({
+ message: "Muse SDK returned an unsupported protocol envelope version.",
+ });
+ },
+ );
+
+ it("does not spawn when already aborted and closes a ready host on later abort", async () => {
+ const aborted = new AbortController();
+ aborted.abort();
+ await expect(
+ createMuseSdkHost({ binaryPath: "muse", signal: aborted.signal }),
+ ).rejects.toBeDefined();
+ expect(spawnMspConnection).not.toHaveBeenCalled();
+ const fake = mockSpawn();
+ const abort = new AbortController();
+ const running = createMuseSdkHost({ binaryPath: "muse", signal: abort.signal });
+ fake.startup.resolve(fake.ready);
+ const host = await running;
+ abort.abort();
+ fake.shutdown.resolve({ code: 0, signal: null });
+ await host.close();
+ expect(fake.close).toHaveBeenCalledOnce();
+ });
+
+ it.effect(
+ "keeps Effect startup resources alive until interrupted initialization shuts down",
+ () =>
+ Effect.gen(function* () {
+ const fake = mockSpawn();
+ let released = false;
+ const fiber = yield* Effect.forkChild(
+ createMuseSdkHostEffect({ binaryPath: "muse" }).pipe(
+ Effect.ensuring(
+ Effect.sync(() => {
+ released = true;
+ }),
+ ),
+ ),
+ );
+ yield* Effect.promise(() => fake.initializing.promise);
+ const interrupted = yield* Fiber.interrupt(fiber).pipe(Effect.forkChild);
+ yield* Effect.promise(() => fake.closing.promise);
+ expect(released).toBe(false);
+ fake.shutdown.resolve({ code: 0, signal: null });
+ yield* Fiber.join(interrupted);
+ expect(released).toBe(true);
+ expect(fake.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("closes a fulfilled host when interruption wins before acquisition is delivered", () =>
+ Effect.gen(function* () {
+ const started = pending();
+ const startup = pending();
+ const closing = pending();
+ const shutdown = pending();
+ const host = {
+ close: vi.fn(() => {
+ closing.resolve();
+ return shutdown.promise;
+ }),
+ } as unknown as MuseSdkHost;
+ let released = false;
+ const fiber = yield* Effect.forkChild(
+ createMuseSdkHostEffect({ binaryPath: "muse" }, () => {
+ started.resolve();
+ return startup.promise;
+ }).pipe(
+ Effect.ensuring(
+ Effect.sync(() => {
+ released = true;
+ }),
+ ),
+ ),
+ );
+ yield* Effect.promise(() => started.promise);
+ startup.resolve(host);
+ const interrupted = yield* Fiber.interrupt(fiber).pipe(
+ Effect.forkChild({ startImmediately: true }),
+ );
+ yield* Effect.promise(() => closing.promise);
+ expect(released).toBe(false);
+ shutdown.resolve();
+ yield* Fiber.join(interrupted);
+ expect(released).toBe(true);
+ expect(host.close).toHaveBeenCalledOnce();
+ }),
+ );
+});
diff --git a/apps/server/src/provider/museSdk.ts b/apps/server/src/provider/museSdk.ts
new file mode 100644
index 0000000000000000000000000000000000000000..dcc778d4f77973d25832451b7bcd47f6390342cb
--- /dev/null
+++ b/apps/server/src/provider/museSdk.ts
@@ -0,0 +1,163 @@
+// @effect-diagnostics globalTimers:off
+// The SDK owns process shutdown; native deadlines cover initialize before an Effect resource exists.
+import {
+ spawnMspConnection,
+ type Connection,
+ type ProcessExit,
+ type SpawnedMspConnection,
+} from "@muse-code/sdk";
+import type { RuntimeMode } from "@t3tools/contracts";
+import * as Effect from "effect/Effect";
+
+export interface MuseSdkHost {
+ readonly connection: Pick<
+ Connection,
+ | "command"
+ | "request"
+ | "mintCommandId"
+ | "onNotification"
+ | "onServerRequest"
+ | "onProtocolError"
+ | "closed"
+ >;
+ readonly initializeResult: Pick;
+ readonly exited: Promise;
+ /** The last lines Muse wrote to stderr, for explaining an unexpected exit. */
+ readonly stderrTail?: () => ReadonlyArray;
+ readonly close: () => Promise;
+}
+
+export interface MuseSdkHostOptions {
+ readonly binaryPath: string;
+ readonly cwd?: string;
+ readonly environment?: NodeJS.ProcessEnv;
+ readonly runtimeMode?: RuntimeMode;
+ /** Disables shell and filesystem writes and workspace trust. */
+ readonly readOnly?: boolean;
+ /** Read-only generation needs durable logging for turn/item notifications (verified through 1.1.1). */
+ readonly sessionLogging?: boolean;
+ readonly signal?: AbortSignal;
+ readonly startupTimeoutMs?: number;
+}
+
+/** Preserve the host's CLI login while excluding the API-key override before copying values. */
+export function makeMuseEnvironment(
+ environment: NodeJS.ProcessEnv = process.env,
+): NodeJS.ProcessEnv {
+ return {
+ ...Object.fromEntries(
+ Object.keys(environment)
+ .filter((key) => key.toUpperCase() !== "META_API_KEY")
+ .map((key) => [key, environment[key]]),
+ ),
+ MUSE_NO_AUTO_UPDATE: "1",
+ };
+}
+
+export function museApprovalMode(runtimeMode: RuntimeMode) {
+ return runtimeMode === "full-access" ? "allowAll" : "promptUnmatched";
+}
+
+/** The `muse serve` arguments for a host: read-only hosts get no shell, writes, or workspace trust. */
+export function museServeArgs(
+ options: Pick,
+) {
+ const args = ["serve"];
+ if (options.readOnly) {
+ args.push("--disable-shell", "--disable-write");
+ if (options.sessionLogging !== true) args.push("--no-session-log");
+ } else {
+ args.push("--trust-workspace");
+ if (options.runtimeMode === "full-access") args.push("--disable-sandbox");
+ }
+ return args;
+}
+
+/** What T3 sends in MSP `initialize`; only full hosts ask for session MCP servers. */
+export function museInitializeParams(readOnly = false) {
+ return {
+ clientInfo: { name: "t3_code", title: "T3 Code", version: "1" },
+ capabilities: { requestedCapabilities: readOnly ? [] : ["sessionMcp"] },
+ };
+}
+
+/** One SDK-owned process. The pre-handshake handle owns cleanup even when initialize never replies. */
+export async function createMuseSdkHost(
+ options: MuseSdkHostOptions,
+ spawn: typeof spawnMspConnection = spawnMspConnection,
+): Promise {
+ options.signal?.throwIfAborted();
+ const handshake = spawn({
+ command: options.binaryPath,
+ args: museServeArgs(options),
+ ...(options.cwd ? { cwd: options.cwd } : {}),
+ // Callers pass an environment already built with makeMuseEnvironment.
+ env: options.environment ?? makeMuseEnvironment(),
+ // A healthy host exits at once; this only bounds a hung one on close.
+ shutdownTimeoutMs: 10_000,
+ });
+ let closePromise: Promise | undefined;
+ const close = () => {
+ options.signal?.removeEventListener("abort", onAbort);
+ return (closePromise ??= handshake.close().then(() => undefined));
+ };
+ let rejectStartup: (reason: unknown) => void = () => {};
+ const onAbort = () => {
+ rejectStartup(options.signal?.reason ?? new Error("Muse SDK startup aborted."));
+ void close().catch(() => {});
+ };
+ const interrupted = new Promise((_resolve, reject) => {
+ rejectStartup = reject;
+ });
+ options.signal?.addEventListener("abort", onAbort, { once: true });
+ if (options.signal?.aborted) onAbort();
+ const timer = setTimeout(
+ () => rejectStartup(new Error("Muse SDK initialization timed out.")),
+ options.startupTimeoutMs ?? 20_000,
+ );
+ timer.unref();
+ try {
+ const host = await Promise.race([
+ handshake.initialize(museInitializeParams(options.readOnly)),
+ interrupted,
+ ]);
+ if (host.initializeResult.schema?.version !== 1) {
+ throw new Error("Muse SDK returned an unsupported protocol envelope version.");
+ }
+ // The SDK's fingerprint warning permits additive optional schema changes.
+ // Successful initialization, not fingerprint identity, determines readiness.
+ return {
+ connection: host.connection,
+ initializeResult: host.initializeResult,
+ exited: host.exited,
+ stderrTail: () => handshake.child.stderrTail,
+ close,
+ };
+ } catch (error) {
+ await close();
+ throw error;
+ } finally {
+ clearTimeout(timer);
+ }
+}
+
+/** Cancellation waits for native shutdown before callers release startup resources. */
+export const createMuseSdkHostEffect = Effect.fn("createMuseSdkHostEffect")(function* (
+ options: Omit,
+ createHost: typeof createMuseSdkHost = createMuseSdkHost,
+) {
+ let startup: Promise | undefined;
+ return yield* Effect.tryPromise((signal) => {
+ startup = createHost({ ...options, signal });
+ return startup;
+ }).pipe(
+ Effect.onInterrupt(() =>
+ Effect.promise(async () => {
+ await startup?.then(
+ (host) => host.close(),
+ () => {},
+ );
+ }),
+ ),
+ );
+});
diff --git a/apps/server/src/provider/providerCompatibility.test.ts b/apps/server/src/provider/providerCompatibility.test.ts
index 719a25042cae10dd8006850f8c1c2187c0f5f902..c677e876de6769ac84f87688f1985bbe07e6b204 100644
--- a/apps/server/src/provider/providerCompatibility.test.ts
+++ b/apps/server/src/provider/providerCompatibility.test.ts
@@ -167,6 +167,26 @@ describe("provider compatibility", () => {
);
});
+ it("compares Muse versions by their release, ignoring the revision suffix", () => {
+ const muse = ProviderDriverKind.make("muse");
+ for (const [version, expected] of [
+ ["1.4.3-R5018.1", "supported"],
+ ["1.4.2-R4684", "supported"],
+ ["1.4.1-R4100.2", "unknown"],
+ ["1.4.3-beta.1", "unknown"],
+ ] as const) {
+ assert.strictEqual(
+ resolveProviderCompatibility(
+ ModelManifest.BUNDLED_MODEL_MANIFEST.compatibility,
+ muse,
+ version,
+ V2_RELEASE,
+ )?.status,
+ expected,
+ );
+ }
+ });
+
it("recognizes Antigravity semver release tags while keeping dated candidates unknown", () => {
const antigravity = ProviderDriverKind.make("antigravity");
const taggedPolicy = {
diff --git a/apps/server/src/provider/providerCompatibility.ts b/apps/server/src/provider/providerCompatibility.ts
index b4ce66f876038082279515390ae69be1db85250b..b309d507dc13172b56cfbd925bca99dcdb9342e5 100644
--- a/apps/server/src/provider/providerCompatibility.ts
+++ b/apps/server/src/provider/providerCompatibility.ts
@@ -67,14 +67,17 @@ export function resolveProviderCompatibility(
);
if (!policy) return undefined;
const unprefixed = version?.replace(/^v/, "");
- // Cursor appends a build hash to its date; Google's ACP runtime uses a release prefix.
- // Strip only these driver-specific forms, keeping semver prereleases unknown.
+ // Cursor appends a build hash to its date; Google's ACP runtime uses a release prefix;
+ // Muse appends a release revision. Strip only these driver-specific forms, keeping
+ // semver prereleases unknown.
const stable =
driver === "cursor"
? unprefixed?.replace(/^(\d{4}\.\d{2}\.\d{2})-[a-f0-9]+$/, "$1")
: driver === "antigravity"
? unprefixed?.replace(/^agy_acp_server_(\d+\.\d+\.\d+)$/, "$1")
- : unprefixed;
+ : driver === "muse"
+ ? unprefixed?.replace(/^(\d+\.\d+\.\d+)-R\d+(?:\.\d+)?$/, "$1")
+ : unprefixed;
const status =
stable && /^\d+\.\d+\.\d+$/.test(stable)
? (policy.ranges.find((entry) => satisfiesSemverRange(stable, entry.range))?.status ??
diff --git a/apps/server/src/provider/providerMaintenance.ts b/apps/server/src/provider/providerMaintenance.ts
index 606f9a460ba3c5a11e43e1c97fb739504ceb8d6e..5dac5153a4f6ff7fedb9f931f31a8b12041f9fa8 100644
--- a/apps/server/src/provider/providerMaintenance.ts
+++ b/apps/server/src/provider/providerMaintenance.ts
@@ -67,6 +67,8 @@ export interface ProviderMaintenanceCapabilities {
* installer was asked and did not know.
*/
readonly latestVersion?: string | null;
+ /** Compare native release revisions when the provider does not use plain semver. */
+ readonly compareVersions?: (current: string, latest: string) => number;
}
export interface ProviderMaintenanceCommandAction {
@@ -722,6 +724,7 @@ export const makeCachedProviderMaintenanceResolution = Effect.fn(
function deriveVersionAdvisory(input: {
readonly currentVersion: string | null;
readonly latestVersion: string | null;
+ readonly compareVersions?: (current: string, latest: string) => number;
}): Pick {
if (!input.currentVersion) {
return { status: "unknown", message: null };
@@ -729,7 +732,9 @@ function deriveVersionAdvisory(input: {
if (!input.latestVersion) {
return { status: "unknown", message: null };
}
- if (compareSemverVersions(input.currentVersion, input.latestVersion) < 0) {
+ if (
+ (input.compareVersions ?? compareSemverVersions)(input.currentVersion, input.latestVersion) < 0
+ ) {
return {
status: "behind_latest",
message: PROVIDER_UPDATE_ACTION_TOAST_MESSAGE,
@@ -751,6 +756,7 @@ export function createProviderVersionAdvisory(input: {
const advisory = deriveVersionAdvisory({
currentVersion: input.currentVersion,
latestVersion,
+ ...(capabilities.compareVersions ? { compareVersions: capabilities.compareVersions } : {}),
});
return {
diff --git a/apps/server/src/textGeneration/MuseTextGeneration.test.ts b/apps/server/src/textGeneration/MuseTextGeneration.test.ts
new file mode 100644
index 0000000000000000000000000000000000000000..5f3be054870512c4a28750097df8e30ab39b4ff5
--- /dev/null
+++ b/apps/server/src/textGeneration/MuseTextGeneration.test.ts
@@ -0,0 +1,372 @@
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { expect, it } from "@effect/vitest";
+import type { NotificationHandler } from "@muse-code/sdk";
+import {
+ MUSE_DEFAULT_MODEL,
+ MuseSettings,
+ ProviderInstanceId,
+ type ServerProviderModel,
+} from "@t3tools/contracts";
+import { createModelSelection } from "@t3tools/shared/model";
+import * as Effect from "effect/Effect";
+import * as Fiber from "effect/Fiber";
+import * as Schema from "effect/Schema";
+import { vi } from "vite-plus/test";
+
+import type { MuseSdkHost } from "../provider/museSdk.ts";
+import { museModelCapabilities } from "../provider/museModelCatalog.ts";
+import { makeMuseTextGeneration } from "./MuseTextGeneration.ts";
+
+const settings = Schema.decodeSync(MuseSettings)({ enabled: true });
+const modelSelection = createModelSelection(
+ ProviderInstanceId.make("muse"),
+ "muse-spark-1.3-contributor",
+ [{ id: "reasoningEffort", value: "high" }],
+);
+const titleInput = {
+ cwd: "/project/should-not-be-used",
+ message: "Fix the login form",
+ modelSelection,
+};
+
+function fixture(
+ onTurn?: (emit: (method: string, params: Record) => void) => void,
+ acknowledgeTurn = true,
+ modelCatalog?: Effect.Effect>,
+) {
+ let handler: NotificationHandler = () => {};
+ let commandSequence = 0;
+ let activeTurnId: string | undefined;
+ const mintCommandId = () => `turn-${++commandSequence}`;
+ const started = Promise.withResolvers();
+ const closed = Promise.withResolvers();
+ const emit = (method: string, params: Record) =>
+ handler({
+ jsonrpc: "2.0",
+ method,
+ params: {
+ sessionId: "session-1",
+ turnId: activeTurnId,
+ ...params,
+ ...(params.item
+ ? {
+ item: {
+ revision: 1,
+ turnId: activeTurnId,
+ ...(params.item as Record),
+ },
+ }
+ : {}),
+ },
+ });
+ const host: MuseSdkHost = {
+ initializeResult: { grantedCapabilities: [] },
+ connection: {
+ command: vi.fn(async (method, _params, options) => {
+ // Connection.command overwrites params.commandId unless supplied in options.
+ const commandId = options?.commandId ?? mintCommandId();
+ if (method === "session/start") return { session: { sessionId: "session-1" } };
+ if (method === "turn/start") {
+ activeTurnId = commandId;
+ started.resolve();
+ onTurn?.(emit);
+ if (!acknowledgeTurn) return await new Promise>(() => {});
+ return { turnId: commandId };
+ }
+ return {};
+ }),
+ request: vi.fn(async () => ({})),
+ mintCommandId,
+ onNotification: (nextHandler) => {
+ handler = nextHandler;
+ },
+ onProtocolError: () => {},
+ onServerRequest: () => {},
+ closed: closed.promise,
+ },
+ close: vi.fn(async () => {
+ closed.resolve();
+ }),
+ exited: new Promise(() => {}),
+ };
+ const createHost = vi.fn(async () => host);
+ const make = makeMuseTextGeneration(settings, {
+ createHost,
+ ...(modelCatalog ? { modelCatalog } : {}),
+ });
+ return {
+ host,
+ createHost,
+ started: started.promise,
+ closeConnection: closed.resolve,
+ emit,
+ make,
+ };
+}
+
+const finish =
+ (text: string) => (emit: (method: string, params: Record) => void) => {
+ emit("item/updated", { item: { itemId: "answer", kind: "agentMessage", text: "partial" } });
+ emit("item/completed", {
+ item: { itemId: "answer", kind: "agentMessage", revision: 2, text },
+ });
+ emit("turn/completed", { terminal: "completed" });
+ };
+
+it.layer(NodeServices.layer)("Muse text generation", (it) => {
+ it.effect("validates the final item once and closes an isolated restrictive host", () =>
+ Effect.gen(function* () {
+ const test = fixture(finish('{"title":"Fix login form"}'));
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput)).toEqual({
+ title: "Fix login form",
+ });
+ expect(test.createHost).toHaveBeenCalledWith(
+ expect.objectContaining({ readOnly: true, sessionLogging: true }),
+ );
+ expect(test.createHost).not.toHaveBeenCalledWith(
+ expect.objectContaining({ cwd: titleInput.cwd }),
+ );
+ expect(test.host.connection.command).toHaveBeenCalledWith(
+ "session/start",
+ expect.objectContaining({
+ providerId: "meta",
+ modelId: modelSelection.model,
+ approvalMode: "denyUnmatched",
+ }),
+ );
+ expect(test.host.connection.command).toHaveBeenCalledWith(
+ "turn/start",
+ expect.objectContaining({
+ reasoningEffort: "high",
+ }),
+ { commandId: "turn-1" },
+ );
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("uses low effort by default and normalizes stale efforts against the model", () =>
+ Effect.gen(function* () {
+ for (const { saved, variants, expected } of [
+ { saved: undefined, variants: undefined, expected: "low" },
+ { saved: undefined, variants: ["medium", "xhigh"], expected: "medium" },
+ { saved: "max", variants: ["minimal", "max"], expected: "max" },
+ { saved: "ultra", variants: ["medium", "xhigh"], expected: "medium" },
+ { saved: "high", variants: [], expected: undefined },
+ ]) {
+ const test = fixture(
+ finish('{"title":"Fix login form"}'),
+ true,
+ Effect.succeed([
+ {
+ slug: modelSelection.model,
+ name: modelSelection.model,
+ isCustom: false,
+ capabilities: museModelCapabilities(variants ? { variants } : undefined),
+ },
+ ]),
+ );
+ const service = yield* test.make;
+ yield* service.generateThreadTitle({
+ ...titleInput,
+ modelSelection: createModelSelection(
+ ProviderInstanceId.make("muse"),
+ modelSelection.model,
+ saved !== undefined ? [{ id: "reasoningEffort", value: saved }] : undefined,
+ ),
+ });
+ const turn = vi
+ .mocked(test.host.connection.command)
+ .mock.calls.find(([method]) => method === "turn/start");
+ expect(turn?.[1].reasoningEffort).toBe(expected);
+ expect(Object.hasOwn(turn?.[1] ?? {}, "reasoningEffort")).toBe(expected !== undefined);
+ }
+ }),
+ );
+
+ it.effect("lets Muse choose the model when none is selected", () =>
+ Effect.gen(function* () {
+ for (const model of [MUSE_DEFAULT_MODEL, " "]) {
+ const test = fixture(finish('{"title":"Fix login form"}'));
+ const service = yield* test.make;
+ yield* service.generateThreadTitle({
+ ...titleInput,
+ modelSelection: createModelSelection(ProviderInstanceId.make("muse"), model),
+ });
+ const start = vi
+ .mocked(test.host.connection.command)
+ .mock.calls.find(([method]) => method === "session/start");
+ expect(start?.[1]).not.toHaveProperty("modelId");
+ }
+ }),
+ );
+
+ it.effect("rejects invalid structured output and releases the host", () =>
+ Effect.gen(function* () {
+ const test = fixture(finish('{"title":42}'));
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput).pipe(Effect.flip)).toMatchObject({
+ _tag: "TextGenerationError",
+ detail: "Muse returned invalid structured output.",
+ });
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("ignores output and terminal notifications for another turn", () =>
+ Effect.gen(function* () {
+ const test = fixture((emit) => {
+ emit("item/completed", {
+ item: {
+ itemId: "other-answer",
+ kind: "agentMessage",
+ turnId: "another-turn",
+ text: '{"title":"Wrong title"}',
+ },
+ });
+ emit("turn/completed", { turnId: "another-turn", terminal: "completed" });
+ finish('{"title":"Fix login form"}')(emit);
+ });
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput)).toEqual({ title: "Fix login form" });
+ expect(test.host.connection.command).toHaveBeenCalledWith(
+ "turn/start",
+ expect.objectContaining({ sessionId: "session-1" }),
+ { commandId: "turn-1" },
+ );
+ }),
+ );
+
+ it.effect("rejects a truncated response even when its prefix contains valid JSON", () =>
+ Effect.gen(function* () {
+ const test = fixture((emit) => {
+ emit("item/completed", {
+ item: {
+ itemId: "answer",
+ kind: "agentMessage",
+ text: '{"title":"Incomplete answer"}',
+ truncated: true,
+ },
+ });
+ emit("turn/completed", { terminal: "completed" });
+ });
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput).pipe(Effect.flip)).toMatchObject({
+ _tag: "TextGenerationError",
+ });
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("settles a completed turn even when its start acknowledgement never arrives", () =>
+ Effect.gen(function* () {
+ const test = fixture(finish('{"title":"Fix login form"}'), false);
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput)).toEqual({ title: "Fix login form" });
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("reports a failed turn without trying another provider", () =>
+ Effect.gen(function* () {
+ const test = fixture((emit) =>
+ emit("turn/completed", {
+ terminal: "failed",
+ error: { message: "Authentication required. Run muse login." },
+ }),
+ );
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput).pipe(Effect.flip)).toMatchObject({
+ _tag: "TextGenerationError",
+ });
+ expect(test.createHost).toHaveBeenCalledOnce();
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("settles when the transport closes before completion", () =>
+ Effect.gen(function* () {
+ const test = fixture();
+ const service = yield* test.make;
+ const pending = yield* service
+ .generateThreadTitle(titleInput)
+ .pipe(Effect.flip, Effect.forkChild);
+ yield* Effect.promise(() => test.started);
+ test.closeConnection();
+ expect(yield* Fiber.join(pending)).toMatchObject({ _tag: "TextGenerationError" });
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("releases the host when interrupted after the turn starts", () =>
+ Effect.gen(function* () {
+ const test = fixture();
+ const service = yield* test.make;
+ const fiber = yield* service.generateThreadTitle(titleInput).pipe(Effect.forkChild);
+ yield* Effect.promise(() => test.started);
+ yield* Fiber.interrupt(fiber);
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("denies approval requests and fails the noninteractive request", () =>
+ Effect.gen(function* () {
+ const test = fixture((emit) =>
+ emit("approval/requested", {
+ approvalId: "approval-1",
+ currentRequirementId: "requirement-1",
+ availableChoices: [{ choiceId: "deny-1", decision: "denied" }],
+ }),
+ );
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput).pipe(Effect.flip)).toMatchObject({
+ _tag: "TextGenerationError",
+ });
+ expect(test.host.connection.command).toHaveBeenCalledWith("approval/decide", {
+ sessionId: "session-1",
+ approvalId: "approval-1",
+ requirementId: "requirement-1",
+ choiceId: "deny-1",
+ });
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("cancels user input requests", () =>
+ Effect.gen(function* () {
+ const test = fixture((emit) => emit("userInput/requested", { userInputId: "input-1" }));
+ const service = yield* test.make;
+ expect(yield* service.generateThreadTitle(titleInput).pipe(Effect.flip)).toMatchObject({
+ _tag: "TextGenerationError",
+ });
+ expect(test.host.connection.command).toHaveBeenCalledWith(
+ "userInput/cancel",
+ expect.objectContaining({
+ userInputId: "input-1",
+ }),
+ );
+ expect(test.host.close).toHaveBeenCalledOnce();
+ }),
+ );
+
+ it.effect("generates and sanitizes commit content through Muse", () =>
+ Effect.gen(function* () {
+ const test = fixture(
+ finish('{"subject":"Fix login.","body":" Details ","branch":"fix-login"}'),
+ );
+ const service = yield* test.make;
+ const generated = yield* service.generateCommitMessage({
+ cwd: titleInput.cwd,
+ branch: "main",
+ stagedSummary: "login.ts",
+ stagedPatch: "login change",
+ includeBranch: true,
+ modelSelection,
+ });
+ expect(generated.subject).toBe("Fix login");
+ expect(generated.body).toBe("Details");
+ expect(generated.branch).toContain("fix-login");
+ }),
+ );
+});
diff --git a/apps/server/src/textGeneration/MuseTextGeneration.ts b/apps/server/src/textGeneration/MuseTextGeneration.ts
new file mode 100644
index 0000000000000000000000000000000000000000..7b3b3e76ad672c57ad2eac9e2ad1dc8c109a0868
--- /dev/null
+++ b/apps/server/src/textGeneration/MuseTextGeneration.ts
@@ -0,0 +1,350 @@
+import {
+ DEFAULT_TEXT_GENERATION_REASONING_EFFORT,
+ MUSE_DEFAULT_MODEL,
+ type ModelSelection,
+ type MuseSettings,
+ type ServerProviderModel,
+ TextGenerationError,
+} from "@t3tools/contracts";
+import { sanitizeBranchFragment, sanitizeFeatureBranchName } from "@t3tools/shared/git";
+import { getModelSelectionStringOptionValue } from "@t3tools/shared/model";
+import { extractJsonObject } from "@t3tools/shared/schemaJson";
+import * as Effect from "effect/Effect";
+import * as FileSystem from "effect/FileSystem";
+import * as Option from "effect/Option";
+import * as Schema from "effect/Schema";
+
+import {
+ createMuseSdkHost,
+ createMuseSdkHostEffect,
+ type MuseSdkHost,
+} from "../provider/museSdk.ts";
+import { museModelCapabilities, resolveMuseReasoningEffort } from "../provider/museModelCatalog.ts";
+import type * as TextGeneration from "./TextGeneration.ts";
+import {
+ buildBranchNamePrompt,
+ buildCommitMessagePrompt,
+ buildPrContentPrompt,
+ buildThreadTitlePrompt,
+} from "./TextGenerationPrompts.ts";
+import {
+ sanitizeCommitSubject,
+ sanitizePrTitle,
+ sanitizeThreadTitle,
+ toJsonSchemaObject,
+} from "./TextGenerationUtils.ts";
+
+const SessionStarted = Schema.Struct({ session: Schema.Struct({ sessionId: Schema.String }) });
+const ItemNotification = Schema.Struct({
+ sessionId: Schema.String,
+ item: Schema.Struct({
+ itemId: Schema.String,
+ kind: Schema.String,
+ revision: Schema.Int,
+ turnId: Schema.optionalKey(Schema.String),
+ text: Schema.optionalKey(Schema.String),
+ retracted: Schema.optionalKey(Schema.Boolean),
+ truncated: Schema.optionalKey(Schema.Boolean),
+ }),
+});
+const TurnCompleted = Schema.Struct({
+ sessionId: Schema.String,
+ turnId: Schema.String,
+ terminal: Schema.String,
+ error: Schema.optionalKey(Schema.Struct({ message: Schema.String })),
+});
+const ApprovalRequested = Schema.Struct({
+ sessionId: Schema.String,
+ approvalId: Schema.String,
+ currentRequirementId: Schema.Unknown,
+ availableChoices: Schema.Array(
+ Schema.Struct({ choiceId: Schema.String, decision: Schema.String }),
+ ),
+});
+const UserInputRequested = Schema.Struct({
+ sessionId: Schema.String,
+ userInputId: Schema.String,
+});
+const decodeSession = Schema.decodeUnknownSync(SessionStarted);
+const decodeItem = Schema.decodeUnknownSync(ItemNotification);
+const decodeCompleted = Schema.decodeUnknownSync(TurnCompleted);
+const decodeApproval = Schema.decodeUnknownSync(ApprovalRequested);
+const decodeUserInput = Schema.decodeUnknownSync(UserInputRequested);
+const encodeJson = Schema.encodeEffect(Schema.fromJsonString(Schema.Unknown));
+const decodeJson = Schema.decodeEffect(Schema.fromJsonString(Schema.Unknown));
+
+type Operation = keyof TextGeneration.TextGeneration["Service"];
+
+async function generateMuseText(
+ host: MuseSdkHost,
+ workspaceRoot: string,
+ prompt: string,
+ modelId: string | undefined,
+ reasoningEffort: string | undefined,
+ signal: AbortSignal,
+) {
+ let sessionId: string | undefined;
+ const turnId = host.connection.mintCommandId();
+ const messages = new Map();
+ let resolveCompletion: (text: string) => void = () => {};
+ let rejectCompletion: (error: unknown) => void = () => {};
+ const completion = new Promise((resolve, reject) => {
+ resolveCompletion = resolve;
+ rejectCompletion = reject;
+ });
+ // Notifications may settle the turn before the turn/start acknowledgement arrives.
+ void completion.catch(() => {});
+ const rejectInteractive = async (method: string, params: Record) => {
+ if (method === "approval/requested") {
+ const approval = decodeApproval(params);
+ if (approval.sessionId !== sessionId) return;
+ rejectCompletion(new Error("Muse requested an interactive action during text generation."));
+ const deny = approval.availableChoices.find((choice) => choice.decision === "denied");
+ if (deny) {
+ await host.connection.command("approval/decide", {
+ sessionId,
+ approvalId: approval.approvalId,
+ requirementId: approval.currentRequirementId,
+ choiceId: deny.choiceId,
+ });
+ }
+ } else {
+ const request = decodeUserInput(params);
+ if (request.sessionId !== sessionId) return;
+ rejectCompletion(new Error("Muse requested an interactive action during text generation."));
+ await host.connection.command("userInput/cancel", {
+ sessionId,
+ userInputId: request.userInputId,
+ reason: "T3 Code text generation cannot request user input.",
+ });
+ }
+ };
+ host.connection.onNotification((notification) => {
+ try {
+ if (notification.method === "item/completed" || notification.method === "item/updated") {
+ const { item, sessionId: itemSessionId } = decodeItem(notification.params);
+ if (itemSessionId !== sessionId || item.turnId !== turnId || item.kind !== "agentMessage")
+ return;
+ const previous = messages.get(item.itemId);
+ if (!previous || item.revision > previous.revision) messages.set(item.itemId, item);
+ } else if (notification.method === "turn/completed") {
+ const completed = decodeCompleted(notification.params);
+ if (completed.sessionId !== sessionId || completed.turnId !== turnId) return;
+ if (completed.terminal === "completed") {
+ // A turn may include commentary before its final structured answer.
+ const answer = [...messages.values()].findLast((item) => !item.retracted);
+ if (answer?.truncated) {
+ rejectCompletion(new Error("Muse text generation returned a truncated response."));
+ } else {
+ resolveCompletion(answer?.text ?? "");
+ }
+ } else {
+ rejectCompletion(
+ new Error(completed.error?.message ?? `Muse turn ${completed.terminal}.`),
+ );
+ }
+ } else if (
+ notification.method === "approval/requested" ||
+ notification.method === "userInput/requested"
+ ) {
+ void rejectInteractive(notification.method, notification.params ?? {}).catch(
+ rejectCompletion,
+ );
+ } else if (notification.method === "view/gap") {
+ rejectCompletion(new Error("Muse text generation lost part of its response."));
+ }
+ } catch (error) {
+ rejectCompletion(error);
+ }
+ });
+ host.connection.onProtocolError(rejectCompletion);
+ host.connection.onServerRequest(async () => {
+ const error = new Error("T3 Code text generation cannot approve interactive requests.");
+ rejectCompletion(error);
+ throw error;
+ });
+ void host.connection.closed.then(() => {
+ rejectCompletion(new Error("Muse connection closed before text generation completed."));
+ });
+ void host.exited.then(() => {
+ rejectCompletion(new Error("Muse exited before text generation completed."));
+ });
+ const onAbort = () => rejectCompletion(signal.reason);
+ signal.addEventListener("abort", onAbort, { once: true });
+ try {
+ signal.throwIfAborted();
+ const started = decodeSession(
+ await host.connection.command("session/start", {
+ workspaceRoot,
+ providerId: "meta",
+ ...(modelId ? { modelId } : {}),
+ approvalMode: "denyUnmatched",
+ }),
+ );
+ sessionId = started.session.sessionId;
+ const acknowledged = host.connection.command(
+ "turn/start",
+ {
+ sessionId,
+ input: [{ type: "text", text: prompt }],
+ ...(reasoningEffort !== undefined ? { reasoningEffort } : {}),
+ },
+ { commandId: turnId },
+ );
+ return await Promise.race([acknowledged.then(() => completion), completion]);
+ } finally {
+ signal.removeEventListener("abort", onAbort);
+ }
+}
+
+export const makeMuseTextGeneration = Effect.fn("makeMuseTextGeneration")(function* (
+ settings: MuseSettings,
+ options: {
+ readonly environment?: NodeJS.ProcessEnv;
+ readonly modelCatalog?: Effect.Effect>;
+ /** Test hook. */
+ readonly createHost?: typeof createMuseSdkHost;
+ } = {},
+) {
+ const { environment, modelCatalog = Effect.succeed([]), createHost } = options;
+ const fileSystem = yield* FileSystem.FileSystem;
+ const runMuseJson = Effect.fn("runMuseJson")(function* (input: {
+ operation: Operation;
+ prompt: string;
+ outputSchema: S;
+ modelSelection: ModelSelection;
+ }): Effect.fn.Return {
+ const { operation } = input;
+ if (!settings.enabled) {
+ return yield* new TextGenerationError({ operation, detail: "Muse Code is disabled." });
+ }
+ const selectedModel = input.modelSelection.model.trim();
+ const models = yield* modelCatalog;
+ // "default" is the catalog's default model, as in chat. Without one, Muse picks.
+ const catalogModel =
+ selectedModel && selectedModel !== MUSE_DEFAULT_MODEL
+ ? models.find((model) => model.slug === selectedModel)
+ : models.find((model) => model.isDefault && !model.isCustom);
+ const modelId =
+ selectedModel && selectedModel !== MUSE_DEFAULT_MODEL ? selectedModel : catalogModel?.slug;
+ const reasoningEffort = resolveMuseReasoningEffort(
+ catalogModel?.capabilities ?? museModelCapabilities(),
+ getModelSelectionStringOptionValue(input.modelSelection, "reasoningEffort") ??
+ DEFAULT_TEXT_GENERATION_REASONING_EFFORT,
+ );
+ const jsonSchema = yield* encodeJson(toJsonSchemaObject(input.outputSchema)).pipe(
+ Effect.mapError(
+ (cause) => new TextGenerationError({ operation, detail: "Invalid output schema.", cause }),
+ ),
+ );
+ const response = yield* Effect.gen(function* () {
+ // Metadata requests already include their context and do not need checkout configuration.
+ const cwd = yield* fileSystem.makeTempDirectoryScoped({ prefix: "t3code-muse-text-" });
+ const host = yield* Effect.acquireRelease(
+ createMuseSdkHostEffect(
+ {
+ binaryPath: settings.binaryPath,
+ cwd,
+ ...(environment ? { environment } : {}),
+ readOnly: true,
+ // Muse derives SDK turn events from its session log, including completion.
+ sessionLogging: true,
+ },
+ createHost,
+ ),
+ (host: MuseSdkHost) => Effect.promise(() => host.close()),
+ { interruptible: true },
+ );
+ return yield* Effect.tryPromise((signal) =>
+ generateMuseText(
+ host,
+ cwd,
+ `${input.prompt}\n\nReturn only a JSON object matching this schema, with no markdown fences. Do not use tools or ask questions.\n${jsonSchema}`,
+ modelId,
+ reasoningEffort,
+ signal,
+ ),
+ );
+ }).pipe(
+ Effect.scoped,
+ Effect.mapError(
+ (cause) =>
+ new TextGenerationError({
+ operation,
+ detail:
+ "Muse Code text generation failed. Check Muse login and availability on this T3 server host.",
+ cause,
+ }),
+ ),
+ Effect.timeoutOption(180_000),
+ Effect.flatMap(
+ Option.match({
+ onNone: () =>
+ Effect.fail(new TextGenerationError({ operation, detail: "Muse request timed out." })),
+ onSome: Effect.succeed,
+ }),
+ ),
+ );
+ const decodeOutput = Schema.decodeEffect(input.outputSchema);
+ return yield* decodeJson(extractJsonObject(response)).pipe(
+ Effect.flatMap(decodeOutput),
+ Effect.mapError(
+ (cause) =>
+ new TextGenerationError({
+ operation,
+ detail: "Muse returned invalid structured output.",
+ cause,
+ }),
+ ),
+ );
+ });
+
+ const generateCommitMessage: TextGeneration.TextGeneration["Service"]["generateCommitMessage"] =
+ Effect.fn("MuseTextGeneration.generateCommitMessage")(function* (input) {
+ const generated = yield* runMuseJson({
+ operation: "generateCommitMessage",
+ ...buildCommitMessagePrompt({ ...input, includeBranch: input.includeBranch === true }),
+ modelSelection: input.modelSelection,
+ });
+ return {
+ subject: sanitizeCommitSubject(generated.subject),
+ body: generated.body.trim(),
+ ...("branch" in generated && typeof generated.branch === "string"
+ ? { branch: sanitizeFeatureBranchName(generated.branch) }
+ : {}),
+ };
+ });
+ const generatePrContent: TextGeneration.TextGeneration["Service"]["generatePrContent"] =
+ Effect.fn("MuseTextGeneration.generatePrContent")(function* (input) {
+ const generated = yield* runMuseJson({
+ operation: "generatePrContent",
+ ...buildPrContentPrompt(input),
+ modelSelection: input.modelSelection,
+ });
+ return { title: sanitizePrTitle(generated.title), body: generated.body.trim() };
+ });
+ const generateBranchName: TextGeneration.TextGeneration["Service"]["generateBranchName"] =
+ Effect.fn("MuseTextGeneration.generateBranchName")(function* (input) {
+ const generated = yield* runMuseJson({
+ operation: "generateBranchName",
+ ...buildBranchNamePrompt(input),
+ modelSelection: input.modelSelection,
+ });
+ return { branch: sanitizeBranchFragment(generated.branch) };
+ });
+ const generateThreadTitle: TextGeneration.TextGeneration["Service"]["generateThreadTitle"] =
+ Effect.fn("MuseTextGeneration.generateThreadTitle")(function* (input) {
+ const generated = yield* runMuseJson({
+ operation: "generateThreadTitle",
+ ...buildThreadTitlePrompt(input),
+ modelSelection: input.modelSelection,
+ });
+ return { title: sanitizeThreadTitle(generated.title) };
+ });
+ return {
+ generateCommitMessage,
+ generatePrContent,
+ generateBranchName,
+ generateThreadTitle,
+ } satisfies TextGeneration.TextGeneration["Service"];
+});
diff --git a/apps/web/src/components/Icons.tsx b/apps/web/src/components/Icons.tsx
index 4c62f5f385ef14521f89b7105725ec609e4708fb..cc6e2d10af79a4f508de8027f72b1a640bea3423 100644
--- a/apps/web/src/components/Icons.tsx
+++ b/apps/web/src/components/Icons.tsx
@@ -830,3 +830,13 @@ export const ComputerUseAppIcon: Icon = (props) => {
);
};
+
+export const MuseIcon: Icon = (props) => (
+
+);
diff --git a/apps/web/src/components/chat/ProviderInstanceIcon.tsx b/apps/web/src/components/chat/ProviderInstanceIcon.tsx
index 1bb318376d23a324a42438b6c9f14febf47e20ba..2fdbd6102b2319f316cbd5bbe61dc393a8dd8c74 100644
--- a/apps/web/src/components/chat/ProviderInstanceIcon.tsx
+++ b/apps/web/src/components/chat/ProviderInstanceIcon.tsx
@@ -8,6 +8,7 @@ import {
ClaudeAI,
CursorIcon,
GrokIcon,
+ MuseIcon,
Icon,
OpenAI,
OpenCodeIcon,
@@ -27,6 +28,7 @@ const PROVIDER_ICON_BY_PROVIDER: Partial> = {
[ProviderDriverKind.make("opencode")]: OpenCodeIcon,
[ProviderDriverKind.make("cursor")]: CursorIcon,
[ProviderDriverKind.make("grok")]: GrokIcon,
+ [ProviderDriverKind.make("muse")]: MuseIcon,
[ProviderDriverKind.make("antigravity")]: AntigravityIcon,
[ProviderDriverKind.make("pi")]: PiAgentIcon,
};
diff --git a/apps/web/src/components/settings/providerDriverMeta.ts b/apps/web/src/components/settings/providerDriverMeta.ts
index 08f9d83333c18b84b9f2b852ba7b199e850a7be6..c576082fd025703b1304a25cdcbb450da7fc0d70 100644
--- a/apps/web/src/components/settings/providerDriverMeta.ts
+++ b/apps/web/src/components/settings/providerDriverMeta.ts
@@ -7,6 +7,7 @@ import {
GrokSettings,
OpenCodeSettings,
PiSettings,
+ MuseSettings,
ProviderDriverKind,
} from "@t3tools/contracts";
import type * as Schema from "effect/Schema";
@@ -86,6 +87,12 @@ const PROVIDER_CLIENT_DEFINITIONS: readonly ProviderClientDefinition[] = [
label: "Antigravity",
settingsSchema: AntigravitySettings,
},
+ {
+ value: ProviderDriverKind.make("muse"),
+ label: "Muse Code",
+ settingsSchema: MuseSettings,
+ badgeLabel: "Beta",
+ },
{
value: ProviderDriverKind.make("pi"),
label: "Pi",
diff --git a/docs/README.md b/docs/README.md
index ead465ccce03984c06ce6900babb0cd1b04da732..79392a22f8d50e8dd0741047879bb4893f5f1cae 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -21,7 +21,7 @@
- [Outside agents (MCP)](./user/outside-agents.md)
- [Running in the background](./user/background-service.md)
- [Updating T3 Code](./user/updating.md)
-- Provider guides: [Codex](./user/providers-codex.md) · [Claude](./user/providers-claude.md) · [OpenCode](./user/providers-opencode.md) · [Antigravity](./user/providers-antigravity.md) · [Pi](./user/providers-pi.md)
+- Provider guides: [Codex](./user/providers-codex.md) · [Claude](./user/providers-claude.md) · [OpenCode](./user/providers-opencode.md) · [Antigravity](./user/providers-antigravity.md) · [Pi](./user/providers-pi.md) · [Muse Code](./user/providers-muse.md)
---
diff --git a/docs/user/install.md b/docs/user/install.md
index b9f2930776ae9ee0115c038e2dd48bc448776066..948e5d36760761c6cfc3786e6b65e9ef6c0b5a97 100644
--- a/docs/user/install.md
+++ b/docs/user/install.md
@@ -143,6 +143,7 @@ computer.
| OpenCode | Install [OpenCode](https://opencode.ai), then run `opencode auth login`. |
| Antigravity | Install and sign in with Google from T3 Code's provider settings. |
| Pi | Install [Pi](https://pi.dev), then run `pi` once to finish its login or API-key setup. |
+| Muse Code | Install [Muse Code](https://dev.meta.ai/docs/muse-code) on the server, run `muse login`, then enable it in Settings → Providers. |
Provider CLIs must be on the server's `PATH`. If T3 Code cannot find one, set its
**Binary path** in provider settings, especially when using a version manager.
@@ -171,7 +172,8 @@ their original values.
For provider-specific setup and accounts, see [Codex](./providers-codex.md),
[Claude](./providers-claude.md), [OpenCode](./providers-opencode.md),
-[Antigravity](./providers-antigravity.md), and [Pi](./providers-pi.md).
+[Antigravity](./providers-antigravity.md), [Pi](./providers-pi.md), and
+[Muse Code](./providers-muse.md).
## Next steps
diff --git a/docs/user/permission-modes.md b/docs/user/permission-modes.md
index c7e45519acdb3c6bbecf99336069cc98d4b7adf9..1bcdeffee5c459096e7471a902b02a80a85d6226 100644
--- a/docs/user/permission-modes.md
+++ b/docs/user/permission-modes.md
@@ -25,6 +25,9 @@ Providers enforce permissions differently. Some read-only actions can proceed in
including OpenCode and Antigravity, fall back to asking. On Grok, commands its review blocks come
to you for approval.
+Muse Code offers only **Supervised** and **Full access**. A Muse thread already set to another mode
+runs in **Supervised**.
+
Grok offers no **Auto-accept edits**. A Grok thread already set to it runs in **Supervised**. Grok
file-change approvals offer **Allow all edits this session**. Its command approvals have no
session-wide choice, because Grok would remember that command for the whole project.
diff --git a/docs/user/providers-muse.md b/docs/user/providers-muse.md
new file mode 100644
index 0000000000000000000000000000000000000000..9013e97dfa97b7ca7eb0296373e8ea6ea3db00d1
--- /dev/null
+++ b/docs/user/providers-muse.md
@@ -0,0 +1,67 @@
+# Muse Code
+
+Muse Code is a beta integration and is disabled by default. Install
+[Muse Code](https://dev.meta.ai/docs/muse-code) on the machine hosting your
+environment, then run `muse login` as the account that runs T3 Code.
+
+Open **Settings → Providers** in the web or desktop app, select the environment,
+and enable **Muse Code**. Set **Binary path** if Muse is not on the host's `PATH`.
+Refresh provider status after installation or login, then select Muse in a
+thread's model picker.
+
+Provider status does not check your login. If you are signed out, messages
+fail until you run `muse login` on the host.
+
+## Sign-in and API keys
+
+T3 Code ignores a `META_API_KEY` that the T3 server inherits from its own
+environment, so Muse uses the credential saved on the host by `muse login`. To
+use an API key instead, add `META_API_KEY` to the Muse instance's environment
+variables in **Settings → Providers**. Muse gives that key priority over the
+saved login.
+
+## Remote access and instances
+
+Connect from web, desktop, or mobile through [remote access](./remote-access.md).
+Muse uses the selected environment's files and login; connecting devices do not
+need Muse installed. Install and sign in separately on each host where you want
+Muse to run.
+
+Add a provider instance for a separate configuration. Instances on the same host
+share its Muse login; give an instance its own `META_API_KEY` to bill it
+separately. Existing conversations retain their instance when its model catalog
+becomes unavailable.
+
+## Models
+
+Models and reasoning choices come from Muse on the selected host. After changing
+Muse configuration, refresh provider status in **Settings → Providers**. On
+mobile, pull down in thread settings to refresh models. If a saved model becomes
+unavailable, select an available model before sending another message.
+
+Muse can list models that your account cannot use. If a message fails with
+"does not exist or you lack access", pick another model, or add one your account
+can use under **Custom models** in the instance settings.
+
+## Permissions and limitations
+
+Muse offers two [permission modes](./permission-modes.md): **Supervised** asks
+before commands and edits, and **Full access** runs them without asking. Muse has
+no equivalent of **Auto-accept edits** or **Auto**, so they are not offered. Muse
+does not offer a separate Plan mode in T3 Code.
+
+Muse can use T3 Code's tools. If Muse cannot reach them, the turn continues
+without them. Switching providers can pass conversation context as a handoff.
+
+Muse skills do not appear in the composer's `$` menu. Muse still loads them
+itself. Manage them with `muse skills` on the host.
+
+Forking a Muse conversation starts a new session with a copy of the conversation
+context. Conversation rewind is unavailable.
+
+Install Muse and sign in on the host; in-app installation and sign-in are not
+available. Updates can run from **Settings → Providers** when T3 Code recognizes
+the Muse launcher; otherwise update Muse on that host manually.
+
+To stop using Muse in an environment, disable it in **Settings → Providers**.
+This keeps the host's Muse login, thread history, and workspace files.
diff --git a/packages/contracts/src/model.ts b/packages/contracts/src/model.ts
index c5cf909b608fdce5b598c77149311fbb2009bda8..3a863a1670c328505501c3095e255b4c7d430a31 100644
--- a/packages/contracts/src/model.ts
+++ b/packages/contracts/src/model.ts
@@ -147,6 +147,7 @@ const CODEX_DRIVER_KIND = ProviderDriverKind.make("codex");
const CLAUDE_DRIVER_KIND = ProviderDriverKind.make("claudeAgent");
const CURSOR_DRIVER_KIND = ProviderDriverKind.make("cursor");
const GROK_DRIVER_KIND = ProviderDriverKind.make("grok");
+const MUSE_DRIVER_KIND = ProviderDriverKind.make("muse");
const PI_DRIVER_KIND = ProviderDriverKind.make("pi");
const ACP_REGISTRY_DRIVER_KIND = ProviderDriverKind.make("acpRegistry");
const OPENCODE_DRIVER_KIND = ProviderDriverKind.make("opencode");
@@ -168,12 +169,16 @@ export const DEFAULT_TEXT_GENERATION_MODEL = "gpt-6-luna";
export const ANTIGRAVITY_DEFAULT_MODEL = "antigravity-default";
export const DEFAULT_TEXT_GENERATION_REASONING_EFFORT = "low";
+/** Let Muse pick the account's default model. Never send this ID to Muse. */
+export const MUSE_DEFAULT_MODEL = "default";
+
export const DEFAULT_MODEL_BY_PROVIDER: Partial> = {
[CODEX_DRIVER_KIND]: DEFAULT_MODEL,
[CLAUDE_DRIVER_KIND]: "claude-fable-5-1",
[CURSOR_DRIVER_KIND]: "auto",
// Product slug, not an ACP model id. The Grok adapter treats it as "the session's current model".
[GROK_DRIVER_KIND]: "grok-build",
+ [MUSE_DRIVER_KIND]: MUSE_DEFAULT_MODEL,
[ACP_REGISTRY_DRIVER_KIND]: "default",
// "default" defers to the user's own Pi settings.json model selection.
[PI_DRIVER_KIND]: "default",
@@ -226,6 +231,7 @@ export const PROVIDER_DISPLAY_NAMES: Partial>
[CLAUDE_DRIVER_KIND]: "Claude",
[CURSOR_DRIVER_KIND]: "Cursor",
[GROK_DRIVER_KIND]: "Grok",
+ [MUSE_DRIVER_KIND]: "Muse Code",
[ACP_REGISTRY_DRIVER_KIND]: "ACP Registry",
[PI_DRIVER_KIND]: "Pi",
[OPENCODE_DRIVER_KIND]: "OpenCode",
diff --git a/packages/contracts/src/settings.test.ts b/packages/contracts/src/settings.test.ts
index 419db85883bcb6de8b3500541dea4f69d5630881..742066e9efa0d09bddfbc2f4807d36f4f59fa338 100644
--- a/packages/contracts/src/settings.test.ts
+++ b/packages/contracts/src/settings.test.ts
@@ -801,6 +801,16 @@ describe("ServerSettings.providerInstances (slice-2 invariant)", () => {
});
describe("provider enabled defaults", () => {
+ it("keeps Muse disabled until a configured instance opts in", () => {
+ const muse = ProviderDriverKind.make("muse");
+ expect(decodeServerSettings({}).providers.muse.enabled).toBe(false);
+ expect(resolveProviderInstanceEnabled({ driver: muse, config: {} })).toBe(false);
+ expect(resolveProviderInstanceEnabled({ driver: muse, enabled: true, config: {} })).toBe(true);
+ expect(
+ resolveProviderInstanceEnabled({ driver: muse, enabled: true, config: { enabled: false } }),
+ ).toBe(false);
+ });
+
it("enables only the stable bindings by default", () => {
const decoded = decodeServerSettings({});
expect(decoded.providers.codex.enabled).toBe(true);
diff --git a/packages/contracts/src/settings.ts b/packages/contracts/src/settings.ts
index 942fbb915ffe3ff38e50d6c1fd087f070a726d1c..b93a1d354746930fe343046f90012f6085f5415b 100644
--- a/packages/contracts/src/settings.ts
+++ b/packages/contracts/src/settings.ts
@@ -838,6 +838,29 @@ export const AntigravitySettings = makeProviderSettingsSchema(
);
export type AntigravitySettings = typeof AntigravitySettings.Type;
+export const MuseSettings = makeProviderSettingsSchema(
+ {
+ enabled: Schema.Boolean.pipe(
+ Schema.withDecodingDefault(Effect.succeed(false)),
+ Schema.annotateKey({ providerSettingsForm: { hidden: true } }),
+ ),
+ binaryPath: makeBinaryPathSetting("muse").pipe(
+ Schema.annotateKey({
+ title: "Binary path",
+ description:
+ "Path to the Muse Code binary on this environment. Sign in with muse login on that host.",
+ providerSettingsForm: { placeholder: "muse", clearWhenEmpty: "omit" },
+ }),
+ ),
+ customModels: Schema.Array(CustomModelSetting).pipe(
+ Schema.withDecodingDefault(Effect.succeed([])),
+ Schema.annotateKey({ providerSettingsForm: { hidden: true } }),
+ ),
+ },
+ { order: ["binaryPath"] },
+);
+export type MuseSettings = typeof MuseSettings.Type;
+
export const PiSettings = makeProviderSettingsSchema(
{
// Off by default like Cursor and Grok. Users opt in from Settings.
@@ -1445,6 +1468,7 @@ export const ServerSettings = Schema.Struct({
claudeAgent: ClaudeSettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
cursor: CursorSettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
grok: GrokSettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
+ muse: MuseSettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
pi: PiSettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
opencode: OpenCodeSettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
antigravity: AntigravitySettings.pipe(Schema.withDecodingDefault(Effect.succeed({}))),
@@ -1627,6 +1651,12 @@ const AntigravitySettingsPatch = Schema.Struct({
customModels: Schema.optionalKey(Schema.Array(CustomModelSetting)),
});
+const MuseSettingsPatch = Schema.Struct({
+ enabled: Schema.optionalKey(Schema.Boolean),
+ binaryPath: Schema.optionalKey(TrimmedString),
+ customModels: Schema.optionalKey(Schema.Array(CustomModelSetting)),
+});
+
const PiSettingsPatch = Schema.Struct({
enabled: Schema.optionalKey(Schema.Boolean),
binaryPath: Schema.optionalKey(TrimmedString),
@@ -1767,6 +1797,7 @@ export const ServerSettingsPatch = Schema.Struct({
claudeAgent: Schema.optionalKey(ClaudeSettingsPatch),
cursor: Schema.optionalKey(CursorSettingsPatch),
grok: Schema.optionalKey(GrokSettingsPatch),
+ muse: Schema.optionalKey(MuseSettingsPatch),
pi: Schema.optionalKey(PiSettingsPatch),
opencode: Schema.optionalKey(OpenCodeSettingsPatch),
antigravity: Schema.optionalKey(AntigravitySettingsPatch),
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index bf0256cee1cda5b40932f3d3d2022f471c9e2122..dcf710bdd07bb13684786ee5466b934136b841bc 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -539,6 +539,9 @@ importers:
'@ff-labs/fff-node':
specifier: 0.9.4
version: 0.9.4(patch_hash=c4e3cc2420ceb9dc650f9d189e9c24baf7e83f342998bacda5f459a4ce7927a8)
+ '@muse-code/sdk':
+ specifier: 1.4.2
+ version: 1.4.2(@types/node@24.12.4)
'@napi-rs/keyring':
specifier: ^1.3.0
version: 1.3.0
@@ -3520,6 +3523,15 @@ packages:
resolution: {integrity: sha512-VVPPgHyQ6ShqnrmDWuxjmUIsO9gWyOZFmuOfLd9LfBGQJwZfy0gvv9pbHSJuoFNIYC7ZDX9aoFwowjcdSC4E8w==}
engines: {node: '>=18'}
+ '@muse-code/sdk@1.4.2':
+ resolution: {integrity: sha512-2gl6EMq0pOoqokQxlfaKciyrkhvfd17UwtRui9rEUULmJZ4wwr3h/eW1HO88iGbU7X8QvTjwPa1WXcOl/HN/mA==}
+ engines: {node: '>=20'}
+ peerDependencies:
+ '@types/node': 24.12.4
+ peerDependenciesMeta:
+ '@types/node':
+ optional: true
+
'@napi-rs/keyring-darwin-arm64@1.3.0':
resolution: {integrity: sha512-pl76hJvdYUBn6I24bXiOBMA9nbDapo3I5B+f3OorjDU4dUMSypXeKbOVehJe8fhgTiH24flMyTS3aAIy43xegQ==}
engines: {node: '>= 10'}
@@ -14335,6 +14347,10 @@ snapshots:
strict-event-emitter: 0.5.1
optional: true
+ '@muse-code/sdk@1.4.2(@types/node@24.12.4)':
+ optionalDependencies:
+ '@types/node': 24.12.4
+
'@napi-rs/keyring-darwin-arm64@1.3.0':
optional: true