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codex/codex-rs/core/tests/suite
Alex Kira 402f5b6fdf Clarify incremental tool namespace updates in Responses Lite (#51119)
## Why

Incremental namespace declarations contain only changed or added tools. Their descriptions need to make clear that previously declared tools remain available unless explicitly marked unavailable, and that redefinitions replace earlier definitions.

## What changed

Append this guidance to updates of existing namespaces, preserving any namespace description. Leave initial declarations and catalog hashes unchanged.

## Testing

Extend unit and request-history coverage for the namespace hint, unchanged turns that append no tool definitions, and MCP tool removals that append a standalone notice without rewriting history or repeating the notice on the next turn.

GitOrigin-RevId: e32f3c9948efb44a1253868fe67967f117cc21e8
2026-10-05 16:18:54 +00:00
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