jif 6221a217e2 Remove partial-history subagent forks (#51329) ...

## What changed

- Limit multi-agent V2 `fork_turns` guidance to `all` and `none`. Accept legacy positive integer strings as full-history forks instead of truncating parent history.
- Remove partial-history fork handling and telemetry, and direct model override usage to `fork_turns: "none"`.
- Strip inherited `multi_agent.role_instructions` and `multi_agent.usage_hint` content by kind, including persisted hints whose wording predates the current bundled instructions.

## Testing

Update regression coverage for legacy `"1"` and `"3"` values inheriting full history, invalid and zero values being rejected, and stale parent hints being removed from compacted history with both marked and unmarked instructions.

GitOrigin-RevId: 8f6017dc66ad8deefd7745399ef76e1bb1435bb2

2026-10-06 10:39:16 +00:00

..

common

Remove legacy personality template metadata (#51223)

2026-10-06 01:46:33 +00:00

suite

Remove partial-history subagent forks (#51329)

2026-10-06 10:39:16 +00:00

all.rs

[codex] Use expect in integration tests (#28441)

2026-06-15 21:53:47 -07:00