Commit 5f878d2a85807618a4c8571cdef5daa3124672d6 | the-knife

author	maria <maria@kuuro.net> 2026-09-04 04:12:46-04:00
committer	GitHub <noreply@github.com> 2026-09-04 04:12:46-04:00
log	5f878d2a85807618a4c8571cdef5daa3124672d6
tree	1071e5e0d8dca7c48ed185d075a85f1977b10fc8
parent	ec3ec6f0b4e005c47aff07d4d9e31506241bce3a
signature	Signed by PGP key B5690EEEBB952194

fix(web,mobile): fold context compaction under settled turn folds (#9623)

Co-authored-by: maria-rcks <254055478+maria-rcks@users.noreply.github.com>

2 files changed, 24 insertions(+), 9 deletions(-)

apps
- mobile
  - src
    lib
    threadActivity.ts
- web
  - src
    components
    chat
    MessagesTimeline.logic.ts

apps/mobile/src/lib/threadActivity.ts+10-3

 @@ -1375,9 +1375,6 @@ function deriveThreadFeedTurnFolds(
       pendingUserBoundary = entry.message.createdAt;
       continue;
     }
-    if (entry.type === "activity-group" && isContextCompactionActivityGroup(entry)) {
-      continue;
-    }
     const turnId =
       entry.type === "message" && entry.message.role === "assistant"
         ? entry.message.turnId
 @@ -1423,6 +1420,16 @@ function deriveThreadFeedTurnFolds(
     if (hiddenEntryIds.size === 0) {
       continue;
     }
+    // A lone compaction row stays visible on its own; it only folds away as
+    // part of a turn that already folds other work.
+    const hidesNonCompactionWork = entries.some(
+      (entry) =>
+        hiddenEntryIds.has(entry.id) &&
+        !(entry.type === "activity-group" && isContextCompactionActivityGroup(entry)),
+    );
+    if (!hidesNonCompactionWork) {
+      continue;
+    }
     const firstEntry = entries[0];
     const firstHiddenEntry = entries.find((entry) => hiddenEntryIds.has(entry.id));

apps/web/src/components/chat/MessagesTimeline.logic.ts+14-6

 @@ -619,17 +619,15 @@ function deriveTurnFolds(input: {
       if (entry.id === group.terminalEntry?.id) {
         continue;
       }
-      if (index > terminalEntryIndex) {
+      const isCompaction =
+        entry.kind === "work" && entry.entry.sourceActivityKind === "context-compaction";
+      if (!isCompaction && index > terminalEntryIndex) {
         continue;
       }
       // Agent-spawn CTA rows never fold: workflows outlive their launching
       // turn (dynamic spawns, background execution), and folding the CTA
       // when the turn settles makes a still-running fleet invisible.
-      if (
+      if (entry.kind === "work" && entry.entry.agentSpawn !== undefined) {
-        entry.kind === "work" &&
-        (entry.entry.agentSpawn !== undefined ||
-          entry.entry.sourceActivityKind === "context-compaction")
-      ) {
         continue;
       }
       hiddenEntryIds.add(entry.id);
 @@ -637,6 +635,16 @@ function deriveTurnFolds(input: {
     if (hiddenEntryIds.size === 0) {
       continue;
     }
+    // A lone compaction row stays visible on its own; it only folds away as
+    // part of a turn that already folds other work.
+    const hidesNonCompactionWork = group.entries.some(
+      (entry) =>
+        hiddenEntryIds.has(entry.id) &&
+        !(entry.kind === "work" && entry.entry.sourceActivityKind === "context-compaction"),
+    );
+    if (!hidesNonCompactionWork) {
+      continue;
+    }
     const firstEntry = group.entries[0];
     const firstHiddenEntry = group.entries.find((entry) => hiddenEntryIds.has(entry.id));