Source Intelligence

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 v2.1.224 Home All releases olderv2.1.223 v2.1.225newer

Artifact database access must be declared when publishing

Not switched on
Useful2 Signal4
Artifacts not in their notes

An artifact must declare database capability when published, or database calls fail and ask you to republish.

Per-artifact database opt-in is gated behind CLAUDE_CODE_ARTIFACT_DB and its remote flag.

Feature flag
tengu_umber_lattice 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 v2.1.224: 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 v2.1.224. It isn't a statement about your account. What a flag value here can and cannot tell you

CLAUDE_CODE_ARTIFACT_DB
What

Among the new database errors for artifacts is one for publishing: if the artifact's currently published version does not declare the db capability, the call fails and tells you to republish with it declared. Database access is opt-in per artifact rather than automatically available. Gated by CLAUDE_CODE_ARTIFACT_DB and the tengu_umber_lattice flag.

Evidence

this artifact's current published version does not declare the database capability \u2014 republish it with the db capability declared, then retry

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

See this entry in the whole of v2.1.224 →