Files
codex/codex-rs/thread-store
ben zhang 9d3ae38e13 Limit unarchive scans to the requested thread's archived rollouts (#54060)
## Why

Unarchiving a thread previously read rollout metadata across both active and archived history, including unrelated threads.

## What changed

Use `RolloutReferenceIndex::scan_archived_threads` to restrict discovery to archived files whose canonical filenames match the requested thread. Continue validating ownership through session metadata and include compressed and reverted rollouts.

## Testing

Add coverage for compressed and replacement archived rollouts, metadata ownership mismatches, unrelated filenames, and exclusion of active rollouts.

GitOrigin-RevId: 8784f3502b839dcb4a3839744010e350d0196545
2026-10-14 18:19:02 +00:00
..
2026-04-14 13:51:00 -07:00

Thread Store

codex-thread-store is the storage boundary for Codex threads. It defines the ThreadStore trait plus local and in-memory implementations. Other storage implementations may live outside this repository.

Responsibilities

  • ThreadStore::append_items is the raw canonical history append API. It does not infer metadata from item contents.
  • ThreadStore::update_thread_metadata is the only thread metadata write API. It accepts a single literal metadata patch shape, regardless of whether the caller is applying a user/API mutation or facts derived above the store from appended history.
  • LiveThread is the preferred API for active session persistence. It owns a per-thread metadata sync helper, applies the rollout persistence policy, appends canonical history, and then sends metadata patches through ThreadStore::update_thread_metadata.
  • ThreadManager routes metadata mutations for loaded and cold threads through one entrypoint. Loaded threads use their LiveThread; cold threads go directly to the store.
  • LocalThreadStore persists history through codex-rollout JSONL files and persists queryable metadata through the SQLite state database when available. Local explicit metadata mutations also maintain JSONL/name-index compatibility so reading old or SQLite-less local storage keeps working.
  • RolloutRecorder is the local JSONL writer. It writes already-canonical items for ThreadStore::append_items; it no longer decides metadata updates for live thread-store appends.
  • core/session creates or resumes LiveThread handles and does not need to know whether persistence is backed by local files or another store.

Direction

New metadata observation semantics should live above ThreadStore. Stores persist explicit metadata fields, but raw history appends remain history-only.