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

Bridge-spawned sessions start with credentials stripped from their environment

Under the hood
Useful3 Signal3
Remote Control not in their notes

Bridge-spawned child sessions no longer inherit your credential environment variables.

CLAUDE_BG_AUTH_SNAPSHOT_PATH
What

Child processes started by the bridge now inherit an explicit allowlist of environment variables plus an explicit clear-list, and several credential carriers that used to be passed through are unset: OAuth and API-key file descriptors, the background auth snapshot path (CLAUDE_BG_AUTH_SNAPSHOT_PATH), account, org and email identifiers, the session ingress URL and the exit-after-stop delay.

Details
  • Lowercase duplicates of every cleared name are deleted too, so a lowercase shadow cannot smuggle a value through.
  • Unconditional for bridge-spawned sessions.
Evidence

CLAUDE_BG_AUTH_SNAPSHOT_PATH

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 →