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 v2.1.234 Home All releases olderv2.1.233 v2.1.235newer
Claude Code v2.1.234

Startup prefetch failures no longer surface

You'll notice
Useful3 Signal2
Startup

A bad skill or command directory no longer produces a startup error; workflows are pre-warmed too.

Feature flag
tengu_workflows_enabled 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 v2.1.234: off

Read once, for one account on one subscription tier, against v2.1.234. It isn't a statement about your account. What a flag value here can and cannot tell you

What

The startup prefetch now calls a dedicated cache warmer instead of building the full command list. Skill and command loads run together and every failure is swallowed, so a bad skill or command directory no longer produces a startup error. The warmer also pre-loads workflows.

Details
  • The loads run under a settle-all wrapper inside a try/catch, and the skills load time is still recorded as a startup phase.
  • Workflow warming short-circuits when workflows are off: the enableWorkflows setting set to false, the CLAUDE_CODE_WORKFLOWS environment variable set to false, or the tengu_workflows_enabled gate (fallback true) off.
Evidence

warmCommandSourceCaches

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 v2.1.234 →