Brandon Zhang 0d654e6536 Track window and fork positions in turn metadata (#40987) ...

## What changed

- Add the zero-based `window_number` to Responses turn metadata and include it in prewarm requests.
- Persist `forked_from_ordinal_exclusive` separately from the physical history base so fork lineage remains accurate after reverts and cold resumes.
- Report context-inheriting subagents through `parent_thread_id` without also emitting fork lineage.
- Reserve the new metadata keys while accepting and filtering previously valid configured values so Codex-owned values take precedence.

## Testing

- Cover window numbering across compaction, resume, and fork operations.
- Cover fork cutoff persistence across direct forks, legacy rollouts, reverts into inherited history, and cold resumes.

GitOrigin-RevId: 288f6cd632254814c1f166668b33828082d799a1

2026-08-26 22:37:59 +00:00

..

goals_migrations

Preserve thread context when retrying or editing turns (#33211)

2026-07-15 02:35:49 +00:00

logs_migrations

Align SQLite feedback logs with feedback formatter (#13494)

2026-03-18 22:44:31 +00:00

memory_migrations

Move memory state to a dedicated SQLite DB (#24591)

2026-05-26 20:07:25 +02:00

migrations

Add persisted thread artifact models (#40509)

2026-08-25 01:10:10 +00:00

queue_migrations

Dispatch queued messages written by other processes (#39034)

2026-08-17 17:19:46 +00:00

src

Track window and fork positions in turn metadata (#40987)

2026-08-26 22:37:59 +00:00

thread_history_migrations

Persist realtime events in the thread timeline (#40508)

2026-08-25 01:03:20 +00:00

BUILD.bazel

Shard state unit tests under Bazel (#37478)

2026-08-07 17:49:48 +00:00

Cargo.toml

Extract persisted history types into a dedicated crate (#37871)

2026-08-10 19:26:52 +00:00