You'll noticeTier: how much it should matter to you
5Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.224,
What probably matters to youSection of the release
What
An MCP tool that declares it requires user interaction no longer has its permission re-checked in the background and auto-proceeded when the check returns "allow". Those tools always reach you.
Details
The background re-check bails out when the tool reports requiresUserInteraction, which comes from the MCP metadata key anthropic/requiresUserInteraction.
Separately, the permission-prompt telemetry event now records isMcp, distinguishing MCP tools from built-in ones.
Evidence
anthropic/requiresUserInteraction
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
