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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

← All of v2.1.233 Home All releases ←olderv2.1.232 v2.1.234newer→
Claude Code v2.1.233

The built-in guide agent can answer questions about plugin eval and /skill-doctor offline

You'll notice
Useful3 Signal4
Agents not in their notes

The built-in guide agent can now answer about plugin eval and /skill-doctor from bundled reference text.

Feature flag
tengu_lantern_prism 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 v2.1.233: on

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.

tengu_walnut_spire 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 v2.1.233: on

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 v2.1.233. It isn't a statement about your account. What a flag value here can and cannot tell you

/skill-doctorclaude plugin eval
What

The claude-code-guide agent now ships with a reference document about claude plugin eval, plugin eval init and the /skill-doctor report bundled into its prompt, so it answers from that instead of guessing a docs URL that does not exist yet. The reference states whether each feature is on in your session, and when they are off it tells the agent to say they are early access rather than nonexistent.

Details
  • The system prompt ends with a block headed "# Plugin eval and /skill-doctor (embedded offline reference)", and the prompt body gained a fifth expertise domain covering both features.
  • /skill-doctor reports are described as available only when tengu_lantern_prism or CLAUDE_CODE_LANTERN_PRISM is on; plugin eval only when tengu_walnut_spire or CLAUDE_CODE_WALNUT_SPIRE is. Both remote flags fall back to false.
  • The bundle adds references/plugin-eval-quickref.md and references/plugin-eval.md, covering flags, the JSON payload, sandbox and CI use.
  • The guidance explicitly tells the agent not to guess the name of an enablement variable.
Evidence

# Plugin eval and /skill-doctor (embedded offline reference), # Plugin eval and \/skill-doctor\ — quick reference, "references/plugin-eval-quickref.md"

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.233 →