mirror of
https://github.com/openai/codex.git
synced 2026-05-17 17:53:06 +00:00
## Why Older sessions can contain model-warning records persisted as `user` messages, including the unified exec process-limit warning, the `apply_patch`-via-`exec_command` warning, and the model-mismatch high-risk cyber fallback warning. Those warnings are no longer produced as conversation history items, but when old sessions compact they should still be recognized as injected context rather than preserved as real user turns. ## What changed - Removed `record_model_warning` and the production paths that emitted these warning messages into conversation history. - Added `LegacyUnifiedExecProcessLimitWarning`, `LegacyApplyPatchExecCommandWarning`, and `LegacyModelMismatchWarning` contextual fragments that are used only for matching old persisted messages. - Registered the legacy fragments with contextual user message detection so compaction filters them through the existing fragment path. - Added focused compaction coverage for old warning messages being dropped during compacted-history processing. ## Testing - `cargo test -p codex-core warning` - `just fix -p codex-core`