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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

Bash spawn failure details withheld on some connections

You'll notice
Useful2 Signal2
Sessions

Bash spawn errors are hidden from the model on some connections and logged locally instead.

What

When a Bash command throws before producing any result, the underlying error text is no longer always shown to the model. On connections that qualify, the detail goes to the log at error level and the model sees a fixed replacement string instead.

Details
  • Replacement text is shell command failed (detail withheld on this connection).
  • The full detail is still recoverable from the local log.
Evidence

shell command failed (detail withheld on this connection)

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

See this entry in the whole of v2.1.248 →