chore: add .mailmap to fold the Claude co-author identity#107
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A few early commits (e.g. PR #100) carried a `Co-Authored-By: Claude … <noreply@anthropic.com>` trailer, which made GitHub's contributors graph list a spurious "claude" contributor. .mailmap canonicalizes that identity to the maintainer so shortlog / blame / the GitHub contributors graph no longer show it. No history is rewritten; tags, releases (v0.9.0) and PyPI are untouched. Future attribution is separately disabled via ~/.claude/settings.json (includeCoAuthoredBy: false).
hyoshi
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May 16, 2026
The .mailmap was added (#107) to drop the spurious "claude" contributor, but GitHub does not remap Co-authored-by trailer attribution via .mailmap, so it did not achieve its purpose. The single legacy co-author trailer on #100 is accepted as-is; future attribution is prevented at the source via ~/.claude/settings.json (includeCoAuthoredBy: false + attribution commit/pr empty). Removing the dead file.
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Why
GitHub's contributors graph listed a
claudecontributor. Cause: a few early commits (e.g. PR #100) carried aCo-Authored-By: Claude … <noreply@anthropic.com>trailer; GitHub counts co-authors. No commit is authored by Claude.Fix (non-destructive)
Add
.mailmapmapping<noreply@anthropic.com>→ the maintainer's canonical identity.git shortlog/blameand the GitHub contributors graph all honor .mailmap, so the spurious contributor disappears with no history rewrite — tags, the v0.9.0 GitHub Release, and PyPI are completely untouched.Verified locally:
git check-mailmap "Claude Opus 4.7 (1M context) <noreply@anthropic.com>"→Hirokazu Yoshinaga <…@users.noreply.github.com>;git shortlog -sne --allno longer lists claude/anthropic.Future prevention
~/.claude/settings.json→includeCoAuthoredBy: false(separate, user-global) so new commits/PRs never add the trailer.