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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.290 ·

tengu_calm_bear gate replaced by a hardcoded false

The tengu_calm_bear check now always returns false, so the server can no longer turn on whatever it controlled

Group of 2 Under the hood Removed
JSON All of v2.1.290
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
InternalsArea: what it touches
RemovedKind: in v2.1.290,
RemovedSection of the release

Unclear What feature this switch controlled is not shown.

What

A small helper used to ask Anthropic's servers for the tengu_calm_bear flag, falling back to false when there was no answer (return A("tengu_calm_bear", !1);). In this release it simply returns false (return !1;) and no longer asks the server.

  • The helper sits at the minified (shortened, machine-generated) name mme. That name is reused for several unrelated pieces of code, and the parts of Claude Code that call this particular helper were not traced.
  • The fallback was already false before this release.

Why

Whatever depends on this helper is now off for everyone running this build, and a server-side switch can no longer turn it on. Which feature that is has not been identified.

Read from
Feature flag
tengu_calm_bear 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 v2.1.290: not a boolean we can read

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 v2.1.290. It isn't a statement about your account. What a flag value here can and cannot tell you

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhat feature this switch controlled is not shown.

See this entry in the whole of v2.1.290 →

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