Session switched projects on its own — duplicate session IDs across project directories
@aliarain 已經在處理了。
開始於 2026年9月7日。
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描述
Session switched projects on its own — duplicate session IDs across project directories
Summary
With two projects registered in Command Code Desktop, a session spontaneously started referencing the wrong project. No manual project switch was made. Investigation shows the same session IDs exist in both project directories with completely different transcripts, indicating a cross-project session collision.
Environment
- OS: Windows
- App: Command Code Desktop v0.1.22 → v0.1.25 (auto-updated during session window)
- Projects: 2 projects registered ~1 hour apart (Project A and Project B)
- Session where bug was reported:
KYLwd2_uwfTpKTw6JyVnr— "Session Switch Bug" (2026-09-03)
Evidence — duplicate session IDs in both project slugs
Sessions are stored per docs as ~/.commandcode/projects/<project-slug>/<session-id>.jsonl (header records cwd). Two IDs exist in both slugs with divergent content:
ID 0OdgweRGWNjtJoVOitaAw
| Project A slug | Project B slug | |
|---|---|---|
.meta.json title |
Install Agent Browser |
Explore Repository |
.jsonl header cwd |
Project A root | Project B root |
| header timestamp | 2026-09-02T13:27:41Z |
2026-09-02T12:41:22Z |
| first user message | install agent browser |
explore AGENTS.md |
ID ClB46Yifwhg5QzUo8NIP-
| Project A slug | Project B slug | |
|---|---|---|
.meta.json title |
Deployment Exploration |
Run Project |
.jsonl header cwd |
Project A root | Project B root |
| header timestamp | 2026-09-03T05:52:54Z |
2026-09-02T13:40:13Z |
| first user message | how is this deployed and working without my env? |
run this project |
Each duplicate has completely different traceIds sets in the .meta.json, confirming they are different transcripts, not copies.
Also observed placeholder metas with minimal content in both project dirs (27-byte files).
What happened from the user's perspective
"it changed one projects session to another and started referencing the wrong thing. it switched on its own its not something i did"
Reported during session KYLwd2_uwfTpKTw6JyVnr. The transcript shows normal flow until 503 Service temporarily unavailable / 400 name must match ^[a-zA-Z0-9_.-]+$ errors at the same time.
Logs checked
AppData\Roaming\Command Code\logs\main.log— only startup/updater lines ([thread-index] ready,[updater] checking/up-to-date). No explicit project/session switch entry at bug time.AppData\Roaming\Command Code\app-state.json— confirms 2 projects registered, active thread pointed to one project while session files exist in both.
Expected vs actual
- Expected: Session IDs are globally unique;
~/.commandcode/projects/<slug>/is strictly scoped, picker/resume only shows sessions for the launchedcwd. - Actual: Same ID resolves to two different transcripts on disk; app state collapses both to one
projectPath, so resume/references can pick the wrong file and the session appears to "switch projects."
Repro / clues
- Register two projects (Project B, then Project A ~65 min later).
- Create sessions in each around
2026-09-02. Observe IDs collide. - The newer Project A copy shadows the older Project B copy — unclear if ID generator reused IDs or a copy/migration duplicated files to wrong slug.
Impact
Data integrity — wrong cwd, wrong transcript, potential file edits/checkpoints applied to wrong project.
Suggested fix / next steps
- Ensure session ID generation is globally unique (or namespace by slug) and guard against writing a session with a
cwdthat doesn't match its slug. thread-index.dbshould enforce(id, projectSlug)uniqueness and surface a conflict instead of silently shadowing.- Add diagnostic to
main.logwhen a session file is resolved/loaded that logssessionId + resolved slug + header cwdto make future switches traceable.
Teams can reproduce by checking for duplicate <session-id>.jsonl filenames across ~/.commandcode/projects/*/ and comparing their headers/metas. No user-identifying paths needed.
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