rhan-oai b21f0e7a98 [codex] Add internal auto-compaction opt-out (#28260) ...

## Summary

- add a default-on `auto_compaction` feature flag as an internal escape
hatch
- skip pre-turn, model-switch/hash, and mid-turn automatic compaction
when the flag is disabled
- preserve manual `/compact` behavior and surface the existing
context-window error when the provider runs out of room
- add integration coverage for disabled pre-turn and mid-turn compaction

## Motivation

Long-running SPO optimization rollouts need the option to preserve their
full context and fail on context exhaustion instead of entering another
compaction window. This deliberately uses the existing feature-flag
mechanism rather than adding a dedicated public config or app-server
API.

Disable it with:

```sh
codex --disable auto_compaction
```

## Testing

- `just test -p codex-features` — 51 passed
- `just test -p codex-core auto_compaction_feature_disabled` — 2 passed
- `just fix -p codex-core -p codex-features`
- `just write-config-schema`
- `just test -p codex-core` — the new compaction tests passed; the
overall local run had 54 unrelated environment failures, primarily
missing first-party test binaries and shell-snapshot timeouts

b21f0e7a98 · 2026-06-21 20:11:50 -07:00

History

..

src

[codex] Add internal auto-compaction opt-out (#28260)

2026-06-21 20:11:50 -07:00

BUILD.bazel

build: run buildifier from just fmt (#28125)

2026-06-13 21:43:39 -07:00

Cargo.toml

Refactor config types into a separate crate (#16962)

2026-04-07 00:32:41 +00:00