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 v2.1.81 Home All releases olderv2.1.80 v2.1.83newer
Claude Code v2.1.81

Worktree Name Validation

What

Worktree names are now validated with strict rules for allowed characters and length.

Details
  • Names must contain only letters, digits, dots, underscores, and dashes
  • Maximum length of 64 characters
  • Cannot be empty, ".", or ".."
  • Parameter description updated: "Optional name for the worktree (letters, digits, dots, underscores, dashes only; max 64 chars)."
Evidence

Worktree name validation (search for "Invalid worktree name" and "must contain only letters, digits")

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 v2.1.81 →