diff --git a/packages/shared/src/composerTrigger.test.ts b/packages/shared/src/composerTrigger.test.ts
index 50c8cd7c2080cb83995f38f21223eef60fd85a9b..4b27638544578b50fd57790c29d808dc129df0c0 100644
--- a/packages/shared/src/composerTrigger.test.ts
+++ b/packages/shared/src/composerTrigger.test.ts
@@ -1,20 +1,6 @@
 import { describe, expect, it } from "vite-plus/test";
 
-import { serializeComposerFileLink, serializeComposerMentionPath } from "./composerTrigger.ts";
-
-describe("serializeComposerMentionPath", () => {
-  it("keeps simple mention paths unquoted", () => {
-    expect(serializeComposerMentionPath("src/index.ts")).toBe("src/index.ts");
-  });
-
-  it("quotes mention paths containing whitespace", () => {
-    expect(serializeComposerMentionPath("docs/My File.md")).toBe('"docs/My File.md"');
-  });
-
-  it("escapes quoted mention path content", () => {
-    expect(serializeComposerMentionPath('docs/My "File".md')).toBe('"docs/My \\"File\\".md"');
-  });
-});
+import { serializeComposerFileLink } from "./composerTrigger.ts";
 
 describe("serializeComposerFileLink", () => {
   it("uses the basename as the markdown label", () => {
diff --git a/packages/shared/src/composerTrigger.ts b/packages/shared/src/composerTrigger.ts
index dcbdc784934b09ae4931cfccb45a8f6ad4e03f08..c68a9963ffa8fdcb15ed8a4730e583c08846a8dc 100644
--- a/packages/shared/src/composerTrigger.ts
+++ b/packages/shared/src/composerTrigger.ts
@@ -8,15 +8,6 @@ export interface ComposerTrigger {
   rangeEnd: number;
 }
 
-const SIMPLE_MENTION_PATH_REGEX = /^[^\s@"\\]+$/;
-
-export function serializeComposerMentionPath(path: string): string {
-  if (SIMPLE_MENTION_PATH_REGEX.test(path)) {
-    return path;
-  }
-  return `"${path.replaceAll("\\", "\\\\").replaceAll('"', '\\"')}"`;
-}
-
 function composerFileLinkBasename(path: string): string {
   const separatorIndex = Math.max(path.lastIndexOf("/"), path.lastIndexOf("\\"));
   return separatorIndex >= 0 ? path.slice(separatorIndex + 1) : path;