cassirer-openai 68b67f0ff4 Preserve rollout tracing across sub-agent reloads (#57615) ...

## Why

Reloading an evicted sub-agent disabled its rollout tracing, leaving later turns out of the trace. Replacement Code Mode sessions could also reuse cell IDs from earlier sessions.

## What changed

- Reattach reloaded children to the root rollout trace and emit `ThreadResumed` without duplicating `ThreadStarted`.
- Reopen existing threads during replay, preserving their identity and history while clearing stale runtime cell and terminal process mappings.
- Allocate Code Mode cell generations across sessions for both gRPC and stdio hosts to prevent ID reuse after reload.
- Record an aborted trace when session startup fails before the session loop begins.

## Testing

Add regression coverage for child eviction and reload, including a failed reload, continued inference tracing, distinct cell IDs, and preserved mail and follow-up context. Extend replay tests for history preservation and reused runtime handles, and host tests for cell IDs across session replacement and reconnection.

GitOrigin-RevId: 6c146c04b5cda9295afb7d973c0d5474b363a822

2026-10-28 01:29:34 +00:00

..

src

Preserve rollout tracing across sub-agent reloads (#57615)

2026-10-28 01:29:34 +00:00

BUILD.bazel

Code mode on v8 (#15276)

2026-03-20 23:36:58 -07:00

Cargo.toml

Enable zstd compression for code-mode gRPC responses (#57212)

2026-10-26 19:37:58 +00:00