codex

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felixxia-oai 0c3a14bbc2 Preserve Guardian authorization evidence across checkpoint migration (#45782 )

## Why

Older compaction checkpoints can lack a producer model hash. Enabling thread-owned Guardian context must accommodate those checkpoints without losing user instructions or verified answers.

## What changed

- Select review policy from each history snapshot independently of the session's evidence capture policy.
- Keep legacy review for checkpoints with missing or empty producer hashes when the transcript preserves the evidence. Preserve strict compatibility checks when review depends on retained-only evidence.
- Continue capturing retained instructions and answers during migration, while supplying legacy reviews with runtime answers and subagent reviews with root authorization evidence.
- Record producer model hashes on new compactions regardless of context mode.

## Testing

Add coverage for checkpoint migration across compaction and resume in both history storage modes, snapshot policy stability, retained-evidence preservation, and authorization revalidation for owning sessions and subagents.

GitOrigin-RevId: ec72b4a51d40729173e24ac1b53b7d516ddaa825

2026-09-15 20:08:36 +00:00

delivery.rs

Move V2 agent message delivery into AgentControl (#45670 )

2026-09-15 10:35:58 +00:00

execution_tests.rs

Separate Codex error details from retry metadata (#34996 )

2026-07-23 19:32:26 +00:00

execution.rs

Unify turn input submission and routing (#38275 )

2026-08-13 00:00:16 +00:00

interrupt.rs

Move spawned-agent interruption rules into AgentControl (#45676 )