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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.239 ·

Two model behaviours can be switched on by a server payload

Two model behaviours, a silent turn reminder and a Bash-output audience note, can be forced on by env vars.

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3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
System PromptArea: what it touches
In DevelopmentKind: in v2.1.239,
What probably matters to youSection of the release
What

A silent turn reminder and a new note telling Claude who will read Bash output now resolve the same way: an environment variable wins, then whatever the model catalog declares, then a cached blob of settings the server delivers. Anything else is off. In practice both are off unless the server enables them or you set CLAUDE_CODE_SILENT_TURN_REMINDER or CLAUDE_CODE_BASH_OUTPUT_AUDIENCE_NOTE yourself.

Details
  • The silent turn reminder previously came from a per-model experiment lookup; that path is gone.
  • The first time a given model takes a capability from the server payload it reports it once, tracked with a small cache of recently seen models.
Evidence

tengu_model_capability_from_client_data

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

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