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

Assorted smaller changes

Under the hood
Useful1 Signal1
Elsewhere

Agent descriptions are sanitised before display, websocket URLs are normalised, and mkdir accepts a mode.

What

Background-agent descriptions are sanitised before being shown in the running-agents line; websocket URLs are normalised so https: and wss: become wss: and http: and ws: become ws:, with an error for any other scheme; and mkdir now accepts a permission mode.

Details
  • The internal side query that generates titles and summaries explicitly disables thinking.
  • A filesystem error message now reads "refusing a directory at the leaf".
  • Background sessions record that they were born from a spare when CLAUDE_BG_SOURCE is spare.
Evidence

unsupported socket base scheme

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

See this entry in the whole of v2.1.238 →