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 v2.1.79 Home All releases olderv2.1.78 v2.1.80newer
Claude Code v2.1.79

Stdin Timeout Warning

What

When piping input to Claude Code from a slow command, a warning is now shown after 3 seconds if no stdin data has been received, helping users diagnose piping issues.

Details
  • Warns: "Warning: no stdin data received in 3s, proceeding without it. If piping from a slow command, redirect stdin explicitly: < /dev/null to skip, or wait longer."
  • Uses a configurable timeout to detect stalled stdin
Evidence

Stdin timeout detection (search for "no stdin data received in 3s")

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

See this entry in the whole of v2.1.79 →