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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 v2.1.259 ·

MCP tool-wait logic reworked with grace period and per-server state resolution

MCP tool resolution now waits across connected servers with a grace window and reports per-server states like pending, needs-auth and failed.

TierYou'll noticehow much it should matter to you
Useful3my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaMCPwhat it touches
KindImprovementsin v2.1.259,
You'll notice No documentation found

MCP tool resolution now waits across connected servers with a grace window and reports per-server states like pending, needs-auth and failed.

MCP tool resolution has been reworked to walk connected servers and wait up to maxWaitMs before giving up, followed by an absentGraceMs grace window if the tool still isn't found. The resolver now exposes serverState and initialServerState values such as pending, needs-auth, failed, and disabled for telemetry and UX, replacing the previous simpler resolution logic.

See this entry in the whole of v2.1.259 →

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