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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 ·

Periodic check-in/progress polling for long-running remote tool calls

A new loop pings the remote host while a tool call runs, telling an unbound host apart from an unresponsive one.

TierNothing to try yethow much it should matter to you
Useful4my rating, 1 to 5
Signal4worth watching, 1 to 5
AreaRemote Tool Servingwhat it touches
KindIn Developmentin v2.1.257,
Nothing to try yet Notable No documentation found

A new loop pings the remote host while a tool call runs, telling an unbound host apart from an unresponsive one.

A new check-in loop periodically pings a remote host while a tool call is running, using the progress_checks capability with progress_interval_ms, progress_misses, and reconcile_ms settings. It distinguishes an unbound host from a generic host_unresponsive outcome when checks fail.

Read from
Names in the bundleprogress_checksprogress_interval_msprogress_missesreconcile_ms

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