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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 v2.1.260 ·

New "thinking strip" gate for adaptive reasoning: tengu_wise_comet

A gated experiment controls whether adaptive thinking content gets stripped from output.

TierNothing to try yethow much it should matter to you
Useful2my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaThinking Modewhat it touches
KindIn Developmentin v2.1.260,
Nothing to try yet Notable No documentation found

A gated experiment controls whether adaptive thinking content gets stripped from output.

A new experiment, tengu_wise_comet, controls whether the CLI strips extended-thinking content, but only applies when the thinking type is "adaptive"; other thinking types force stripping off. An env var override, CLAUDE_CODE_WISE_COMET, is also available.

Read from
Names in the bundleCLAUDE_CODE_WISE_COMETtengu_wise_comet
Feature flag
tengu_wise_comet Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.260: no gate table built for this version

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.260. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns off for tengu_wise_comet, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: CLAUDE_CODE_WISE_COMET

See this entry in the whole of v2.1.260 →

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