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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.257 ·

MCP managed-policy blocking now carries a specific reason instead of a generic error

A server blocked by managed policy now records why, such as policy mismatch or scope not allowed, instead of one error.

TierYou'll noticehow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaMCPwhat it touches
KindImprovementsin v2.1.257,
You'll notice

A server blocked by managed policy now records why, such as policy mismatch or scope not allowed, instead of one error.

When an MCP server is blocked or disabled by managed policy, the failed-client state now carries a specific block reason instead of one generic error, distinguishing cases like policy-mismatch vs. scope-not-allowed vs. other managed-policy reasons so the UI and telemetry can show why a server was blocked.

See this entry in the whole of v2.1.257 →

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