fix(core): update stale project worktree when directory is moved

packages/opencode/src/project/project.ts

@@ -232,9 +232,14 @@ const layer = Layer.effect(
 
       if (flags.experimentalIconDiscovery) yield* discover(existing).pipe(Effect.ignore, Effect.forkIn(scope))
 
+      // Update worktree to the freshly resolved path when the stored path no
+      // longer exists on disk (project was moved or renamed). Otherwise keep
+      // the existing value so linked-worktree accumulation is preserved.
+      const staleWorktree =
+        projectID !== ProjectV2.ID.global && !(yield* fs.existsSafe(existing.worktree))
       const result: Info = {
         ...existing,
-        worktree: projectID === ProjectV2.ID.global ? worktree : existing.worktree,
+        worktree: projectID === ProjectV2.ID.global || staleWorktree ? worktree : existing.worktree,
         vcs: data.vcs?.type ?? fakeVcs,
         time: { ...existing.time, updated: Date.now() },
       }

packages/opencode/test/project/project.test.ts

@@ -396,6 +396,28 @@ describe("Project.fromDirectory with worktrees", () => {
       expect(result.project.sandboxes).not.toContain(tmp)
     }),
   )
+
+  it.live("updates worktree when project directory is moved", () =>
+    Effect.gen(function* () {
+      const project = yield* Project.Service
+      const tmp = yield* tmpdirScoped({ git: true })
+
+      const original = yield* project.fromDirectory(tmp)
+      expect(original.project.worktree).toBe(tmp)
+
+      const moved = tmp + "-moved"
+      yield* Effect.addFinalizer(() =>
+        Effect.promise(() => $`rm -rf ${moved}`.quiet().nothrow()).pipe(Effect.ignore),
+      )
+      yield* Effect.promise(() => $`mv ${tmp} ${moved}`.quiet())
+
+      const result = yield* project.fromDirectory(moved)
+
+      expect(result.project.id).toBe(original.project.id)
+      expect(result.project.worktree).toBe(moved)
+      expect(result.project.sandboxes).not.toContain(tmp)
+    }),
+  )
 })
 
 describe("Project.discover", () => {