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

CLAUDE_CODE_HOVER_REST gives a local override for the new credential and settings storage

Use it now
Useful3 Signal4
Internals Notable not in their notes

You can pin the new credential and settings storage backend yourself with one environment variable.

Feature flag
tengu_hover_rest 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 v2.1.238: on

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

CLAUDE_CODE_HOVER_REST
What

The new v5 storage backend for credentials and settings can now be pinned with the CLAUDE_CODE_HOVER_REST environment variable, which takes precedence over the tengu_hover_rest server flag. That flag's built-in fallback is false, so the v5 backend stays off unless the server enables it or you set the variable.

Details
  • The decision is now latched once per process instead of re-read at each call site; the code warns if a later pin disagrees with the first.
  • The variable was added to the list of CLAUDE_CODE_* names forwarded to spawned sessions alongside CLAUDE_CODE_REMOTE_SESSION_ID, so a pin carries into child sessions.
Evidence

CLAUDE_CODE_HOVER_REST

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 →