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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 session resume can adopt served tool calls left in-flight by a prior worker

Resuming an MCP session can adopt tool calls a previous worker left in flight instead of re-issuing the interrupted turn.

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AreaRemote Toolswhat it touches
KindImprovementsin v2.1.259,
You'll notice

Resuming an MCP session can adopt tool calls a previous worker left in flight instead of re-issuing the interrupted turn.

When an MCP session resumes, tool calls that a previous worker process had already dispatched but not yet resolved ("served calls") can now be adopted directly by the new process instead of re-issuing the interrupted turn. The model is told which calls' results were lost via an "orphaned-permission" meta-message, and adoption is logged as tengu_remote_tool_restart_adoption.

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