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 v2.1.221 Home All releases olderv2.1.220 v2.1.222newer

Memory-directory prefetch can block the turn briefly

Not switched on
Useful2 Signal3
Memory

Your turn can pause up to two seconds waiting for memory directory files to load first.

A bounded memory-directory prefetch wait exists behind a flag with a false fallback.

Feature flag
tengu_mill_orange 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 v2.1.221: 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 v2.1.221. It isn't a statement about your account. What a flag value here can and cannot tell you

What

Turn assembly can now wait on the in-flight memory-directory prefetch instead of proceeding without it, with the wait bounded and instrumented.

Details
  • The wait is a 2000 ms race with abort-signal support.
  • Reports outcome as consumed, deadline or aborted, along with how long it waited and how many attachments arrived.
  • Gated on tengu_mill_orange with fallback !1, and additionally requires the org-memory decision to not be undecided.
Evidence

tengu_memdir_prefetch_blocking_wait

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

See this entry in the whole of v2.1.221 →