Files
codex/codex-rs
Alex Kira 33b3f80a09 Wire incremental exec tool updates into Code Mode sessions (#60163)
## Why

Changes to nested tools should update the model's catalog without repeating the full `functions.exec` declaration or rewriting retained context.

## What changed

Pass structured exec definitions through the tool router into the session's tool world state. Enable granular updates for Responses Lite in `CodeModeOnly` when both `IncrementalTools` and `IncrementalExecTools` are enabled.

Append changed tool definitions, namespace instructions, and removals as developer messages. Keep common exec instructions and shared types frozen until compaction, then install the latest full catalog.

## Testing

Add feature-gating coverage and a scenario snapshot covering tool additions and removals, namespace instruction changes, eager/deferred transitions, re-enabling tools, retained context, and catalog restoration after compaction.

GitOrigin-RevId: bbf850d4e5018388eeb4c09345d885d776962e09
2026-11-07 19:26:20 +00:00
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