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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 v2.1.234 Home All releases ←olderv2.1.233 v2.1.235newer→
Claude Code v2.1.234

Early flag scan no longer mistakes tool lists and directories for flags

You'll notice
Useful3 Signal1
CLI Arguments

Tool lists and directories passed to flags are no longer misread as flags themselves at startup.

--allowedTools--disallowedTools--add-dir--agents--append-system-prompt
What

The scan Claude Code does over its own arguments before full parsing now knows that --allowedTools, --allowed-tools, --disallowedTools, --disallowed-tools, --add-dir, --agents and --append-system-prompt each consume a following value, so those values are no longer read as flags themselves.

Details
  • This scan runs ahead of the main parser to pick up things like --ax-screen-reader, --model and --effort.
Evidence

"--append-system-prompt",

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.234 →