Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.277 ·

Worker/environment start now reports machine_id

Worker/environment start requests now include a machine_id field

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaTelemetrywhat it touches
KindInternal Changesin v2.1.277,
Under the hood No documentation found

Worker/environment start requests now include a machine_id field

What

When Claude Code starts a worker or environment, the metadata it sends now includes a machine_id value when one is available, in addition to the existing worker_type field.

Why

This gives Anthropic more detail about which machine started a given worker or environment, useful for diagnostics and tracking.

Read from
Names in the bundlemachine_id

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