Source Intelligence
Follow Discord

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 v2.1.228 Home All releases ←olderv2.1.227 v2.1.229newer→
Claude Code v2.1.228

api-key header is now redacted in logs

You'll notice
Useful3 Signal2
Internals

An API key sent in the api-key header is now masked in logs.

What

Header dumps mask api-key alongside authorization, x-api-key, cookie and set-cookie, so an API key passed in that header no longer appears in logs.

Details
  • The socket messaging mismatch warning also passes the message type and session id through a sanitizer before logging.
Evidence

t.toLowerCase() === "api-key"

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

See this entry in the whole of v2.1.228 →