Source Intelligence
Follow Discord

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 v2.1.238 Home All releases ←olderv2.1.237 v2.1.239newer→
Claude Code v2.1.238

A /design command that drafts a design on a canvas artifact

Use it now
Useful4 Signal5
Artifacts Notable not in their notes

A /design command that drafts a design on a canvas artifact now registers by default, if your account allows it.

Feature flag
tengu_ethereal_nova Off by default, switched on for this account

The shipped code defaults this off, and the flag server returned on for the one account this site reads on this version. That is the reading that makes the entry above worth a second look, and it still says nothing about your account.

This account: on · anonymous baseline: on · compiled default in v2.1.238: off

Read once, for one account on one subscription tier, against v2.1.238. It isn't a statement about your account. What a flag value here can and cannot tell you

/design
What

The switch controlling the design canvas command, tengu_ethereal_nova, now defaults to on instead of off, so with no server-side value the design slash command registers and appears in the menu as "Draft a design on a canvas Artifact — editable where saving is enabled (Claude Design preview)". Two further conditions still apply: artifacts must be enabled for the account, and the Artifact tool must advertise a capabilities field. Whether it is on for a given account is still decided remotely.

Details
  • The compiled fallback moved from false to true; the live value continues to come from remote config, which overrides the fallback.
  • The enablement check gating the command is named isDesignCanvasSkillEnabled, and the command name it registers is design.
  • Accounts without artifacts, or on a build whose Artifact tool schema omits capabilities, see no change.
Evidence

tengu_ethereal_nova, isDesignCanvasSkillEnabled, Draft a design on a canvas Artifact — editable where saving is enabled (Claude Design preview)

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 v2.1.238 →