sayan-oai d1d11cac05 core: use turn-owned world state for inline compaction (#29527) ...

## Why

Follow-up to #29249 and its [compaction review
thread](https://github.com/openai/codex/pull/29249#discussion_r3455055101).

During a turn, environment readiness can change between sampling
requests. Inline compaction must render the same model-visible
`WorldState` used by the request it follows. Rebuilding that state
during compaction can observe a newer environment, make replacement
history disagree with what the model saw, and suppress the next
environment update.

## What changed

- Make `run_turn` own the current `Arc<WorldState>` and replace it only
between sampling requests.
- Build each state from an explicitly chosen environment snapshot, diff
deferred-executor steps against the turn-owned state, and retain the
latest state in `ContextManager` only for cross-turn and resume
tracking.
- Pass the exact turn-owned state into inline compaction and explicit
new-context-window replacement.
- Carry that state with
`InitialContextInjection::BeforeLastUserMessage`, so replacement context
and its stored baseline cannot come from different snapshots.
- Remove obsolete state-recapture helpers and ambiguous TurnContext-only
WorldState builders.
- Add an integration test that moves an environment from starting to
ready during a paused turn, triggers compaction, and verifies the next
request receives the readiness update exactly once.

## Test plan

- `just test -p codex-core
deferred_executor_compaction_preserves_then_updates_environment_once`
- `just test -p codex-core process_compacted_history`
- `just test -p codex-core mid_turn_continuation_compaction`
- `just test -p codex-core build_initial_context`
- `just test -p codex-core
ignores_session_prefix_messages_when_truncating`

d1d11cac05 · 2026-06-23 10:33:19 -07:00

History

..

common

path-uri: clarify host-native path conversion (#29501)

2026-06-23 00:02:33 +00:00

remote_env_windows

core: load AGENTS.md from foreign environments (#28958)

2026-06-18 15:06:23 -07:00

suite

core: use turn-owned world state for inline compaction (#29527)

2026-06-23 10:33:19 -07:00

all.rs

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

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

responses_headers.rs

core: rename metadata -> internal_chat_message_metadata_passthrough (#28968)

2026-06-22 11:11:25 -07:00