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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 v2.1.248 ·

MCP server names can be withheld from attachments, and revoked tools counted

Connecting MCP server names can be left out of request context, and revoked tools are counted.

Under the hood In Development
JSON All of v2.1.248
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
MCPArea: what it touches
In DevelopmentKind: in v2.1.248,
In DevelopmentSection of the release
What

When some MCP servers are still connecting or waiting on authentication, their names can now be left out of the context attached to a request, and a new step tallies tools that have been revoked along with why.

Details
  • The revoked-tool tally is a per-cause count included in the attachment payload.
  • Suppression depends on a check against the session's tool set; what that check tests is not visible in this code.
Evidence

keepMcp: !rI(t.options.tools)

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

See this entry in the whole of v2.1.248 →

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