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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 v2.1.20 Home All releases ←olderv2.1.19 v2.1.21newer→
Claude Code v2.1.20

Hard Fail Mode

What

New --hard-fail CLI flag causes Claude Code to exit immediately on certain errors rather than attempting recovery.

Usage
claude --hard-fail
Details
  • Useful for CI/CD pipelines and automated testing
  • Ensures failures are detected rather than silently handled
Evidence

Detection at line 5582 (return process.argv.includes("--hard-fail"))

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

See this entry in the whole of v2.1.20 →