You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.232,
ImprovementsSection of the release
What
Extra metadata attached to an MCP tool result is now forwarded only when it is present and small enough; empty metadata is dropped and oversized metadata is discarded by serialized length.
Details
When metadata is discarded, the fixed end-turn marker claude/endTurn still survives as a fallback.
Evidence
claude/endTurn
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
