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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.

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Claude Code v2.1.222

Worktree git commands run with a scrubbed git environment

You'll notice
Useful3 Signal0
Worktrees

Stray git environment variables in your shell can no longer misdirect worktree operations.

GIT_DIRGIT_WORK_TREEGIT_INDEX_FILE
What

Worktree plumbing no longer inherits ambient git environment variables, so a stray GIT_DIR or a repo fsmonitor cannot redirect worktree operations.

Details
  • covers create, remove, lock, status, reset, rev-parse and sparse-checkout
  • blanks GIT_DIR, GIT_WORK_TREE, GIT_INDEX_FILE, GIT_CONFIG_COUNT, GIT_CONFIG_PARAMETERS, the per-index GIT_CONFIG_KEY_n and GIT_CONFIG_VALUE_n pairs, and more
  • all calls go through the shared -c core.hooksPath=/dev/null -c core.fsmonitor= prefix
Evidence

GIT_ALTERNATE_OBJECT_DIRECTORIES: void 0

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

See this entry in the whole of v2.1.222 →