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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.221

WaitForMcpServers counts cached servers separately

Under the hood
Useful2 Signal0
MCP

The MCP wait debug line now shows cached servers as their own count.

What

The wait-for-MCP debug line and its telemetry event gained a distinct "cached" bucket.

Details
  • sits alongside the existing connected, failed, pending, needsAuth, disabled, unconfigured and unknown counts
  • the count is carried on the tengu_mcp_pending_call telemetry event
Evidence

cachedCount

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

See this entry in the whole of v2.1.221 →