Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.265,
Internal ChangesSection of the release
What
When Claude Code reads in a transcript and processes declared MCP tools, it now keeps two separate records: nameOnlyAnnouncements, for declarations that only give a tool's name, and entries, for full tool declarations. Previously, only full entries were merged into the tracked state; name-only announcements weren't handled separately.
Why
This lets Claude Code distinguish a tool that's merely been announced by name from one that's been fully declared, which likely affects how it decides whether a tool is ready to use.
