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 v2.1.169 Home All releases olderv2.1.168 v2.1.170newer

Claude Design Contextual Tip [In Development]

Feature flag
tengu_cedar_plume 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 v2.1.169: 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 v2.1.169. It isn't a statement about your account. What a flag value here can and cannot tell you

What

A new contextual tip "Designing a UI? Claude Design can mock 5 versions of your screen before you build — claude.ai/design" will appear periodically for users who are working on front-end code, pointing them to the new /design-sync skill.

Status

Feature-flagged. Gated by tengu_cedar_plume server-side flag.

Details
  • Only shown to first-party claude.ai sessions (hq() check)
  • Respects a 15-session cooldown so it doesn't repeat too often
  • Also requires the user to be in a context where design suggestions are relevant (cb9() check)
Evidence

Tip gated by feature flag (search for "tengu_cedar_plume") — claude-design-contextual tip at line ~25202

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

See this entry in the whole of v2.1.169 →