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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.251 ·

MCP tools no longer blocked by a name clash with a built-in tool

An MCP tool sharing a name with a built-in tool is no longer silently blocked.

You'll notice New Features
JSON All of v2.1.251
You'll noticeTier: how much it should matter to you
4Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
New FeaturesKind: in v2.1.251,
What probably matters to youSection of the release
What

A tool provided by an MCP server is now treated as enabled if a built-in tool of the same name is enabled, closing a case where a name collision could silently block the MCP tool despite permissions allowing it.

Details
  • Unconditional.
Evidence

n.mcpInfo === void 0

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.251 →

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