Follow Discord
Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeReleasesv2.1.228entry #74

Claude Code v2.1.228 ·

Device tools reject calls tagged with someone else's cloud session

Tools on your machine refuse calls from a cloud session other than the one being served.

You'll notice Improvements
JSON All of v2.1.228
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
ImprovementsKind: in v2.1.228,
ImprovementsSection of the release
What

When a cloud session calls a tool on your machine with a session_id that does not match the session the device is actually serving, the call is refused with a result explaining the machine is busy with another session and telling the model not to retry in a loop.

Details
  • Refusals are reported as tengu_device_tool_refused with reason session_mismatch.
  • Device tools now carry an analyticsName used in that reporting.
Evidence

tengu_device_tool_refused

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.228 →

Feedback