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Adam Perry @ OpenAI a4b69a0ae9 Add session-scoped stores for stable model-facing IDs (#61339 )

## What changed

- Add `SessionModelIdStore` with SQLite and in-memory implementations for looking up and assigning aliases by session, namespace, and external key.
- Commit SQLite assignments before returning them, and recheck under a write transaction so concurrent writers reuse the same alias.
- Support snapshotting and initializing alias maps from generator state and ordered keys, and remove mappings when their thread is deleted.
- Expose alias stores through `ThreadStore` and add distinct types for registered environment IDs and model-facing `env` aliases.

## Testing

Add a test using two SQLite runtime instances to verify that concurrent assignments return the same alias, different keys receive different aliases, and lookups and snapshots preserve the assignments.

GitOrigin-RevId: 2668f605251ca76d4891f70f94bfb4151ba8142c

2026-11-13 18:43:58 +00:00

src

Add session-scoped stores for stable model-facing IDs (#61339 )

2026-11-13 18:43:58 +00:00

BUILD.bazel

…

Cargo.toml

Fix Unicode caseless matching in thread search (#60759 )

2026-11-11 08:28:25 +00:00

README.md

Unify thread metadata updates above store (#22236 )

2026-05-13 00:28:15 +00:00

README.md

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.