Rasmus Rygaard 9caddc5cf5 Surface environment startup failure reasons to the model (#44277) ...

## Why

Failed environments were omitted from environment context, and `wait_for_environment` returned a generic failure or treated an already-failed environment as unselected. The model needs the failure reason to explain problems such as an empty repository.

## What changed

- Preserve the selected environment and error when startup or configuration fails.
- Include failed status and XML-escaped error details in environment context, and return the reason from `wait_for_environment` for failures detected before or during a wait.
- Limit error details to 256 bytes per environment and 512 bytes total in context, preserving UTF-8 boundaries. Limit wait failure details to 256 bytes.

## Testing

Add coverage for failures before a turn and while waiting, verifying that the model receives the reason and the turn completes. Add unit tests for XML escaping, incremental context updates, clearing errors on recovery, and UTF-8-safe truncation.

GitOrigin-RevId: 093ab9b447c7b3243fbb53b665180db95479f2a7

2026-09-09 18:50:32 +00:00

..

common

Remove the unused legacy remote compaction implementation (#44273)

2026-09-09 18:40:53 +00:00

remote_env_windows

Apply remote platform semantics to exec safety checks (#42113)

2026-09-01 18:24:56 +00:00

suite

Surface environment startup failure reasons to the model (#44277)

2026-09-09 18:50:32 +00:00

all.rs

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

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

responses_headers.rs

Sanitize credentials from Git remote metadata (#40713)

2026-08-25 21:34:05 +00:00