Keyan Zhang 044e74fef3 Preserve inherited context in prediction forks (#53678) ...

## Why

Prediction forks need to retain their parent's context even when it exceeds the automatic compaction threshold. Compaction or context resets can otherwise replace the history used for the prediction.

## What changed

- Apply a thread-local `AutoCompactionDisabled` policy to experimental prediction forks without changing model or skill budgets.
- Skip automatic compaction before, during, and after turns, including context-limit recovery, and suppress new token-budget reminders.
- Reject `new_context` requests for these threads and report context-limit failures without compacting their history.

## Testing

Add regression tests for legacy and paginated prediction forks across compaction thresholds, unchanged parent compaction and skill/tool inputs, context-limit failures, and rejected context resets. Add a request-history snapshot verifying inherited context and reminders survive without compaction or additional reminders after a tool call.

GitOrigin-RevId: 7df374287f4142f776981bb6c22e5caa564d74a5

2026-10-13 14:17:41 +00:00

..

common

Keep discovered Apps tools available during startup recovery (#53672)

2026-10-13 13:59:41 +00:00

remote_env_windows

Bind capability roots to environment selections (#51493)

2026-10-06 22:39:32 +00:00

suite

Preserve inherited context in prediction forks (#53678)

2026-10-13 14:17:41 +00:00

all.rs

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

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

mcp_trace_propagation.rs

Preserve MCP request trace context across transport workers (#47212)

2026-09-22 06:47:07 +00:00

responses_headers.rs

Add opt-in output token replay for OpenAI requests (#52742)

2026-10-10 01:25:00 +00:00

windows_sandbox.rs

Move Windows sandbox tests into a dedicated integration binary (#51678)

2026-10-07 12:47:04 +00:00