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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 v2.1.247 ·

tengu_cobalt_plinth_fennel appears once, with no visible caller

A new artifact relay flag is read by one function that nothing appears to call.

Nothing to try yet Notable No documentation found In Development
JSON All of v2.1.247
Nothing to try yetTier: how much it should matter to you
1Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
ArtifactsArea: what it touches
In DevelopmentKind: in v2.1.247,
What probably matters to youSection of the release

tengu_cobalt_plinth_fennel is compiled off, read once, and its reader has no visible caller anywhere in the build.

What

A new artifact-relay flag, compiled to off, is read by a single small function whose name was freed up by renaming the route-classifying helper that used to own it. No call to that function appears in the surrounding module, and the flag name occurs exactly once in the whole build.

Details
  • Name reuse across scopes in this build means a caller elsewhere cannot be ruled out; either way the fallback is off, so whatever it selects needs a server-side value.
  • Live in the same module: the relay now reports once per session, under artifact_frame_relay / bot_context_not_served, that bot contexts are not relayed.
Evidence

tengu_cobalt_plinth_fennel

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

Read from
Names in the bundletengu_cobalt_plinth_fennel
Feature flag
tengu_cobalt_plinth_fennel 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 v2.1.247: not a boolean we can read

Read once, for one account on one subscription tier, against v2.1.247. 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_cobalt_plinth_fennel, 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.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_cobalt_plinth_fennel, 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: tengu_cobalt_plinth_fennel

See this entry in the whole of v2.1.247 →

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