Add gpg-pinentry-guard plugin to prevent broken GPG signing prompts#30521
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Clovel wants to merge 1 commit intoanthropics:mainfrom
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Add gpg-pinentry-guard plugin to prevent broken GPG signing prompts#30521Clovel wants to merge 1 commit intoanthropics:mainfrom
Clovel wants to merge 1 commit intoanthropics:mainfrom
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PreToolUse hook plugin that intercepts git commands which would trigger GPG signing with a terminal-based pinentry (pinentry-curses, pinentry-tty). Claude Code's Ink renderer holds exclusive control of the terminal's keyboard input. When pinentry opens /dev/tty to read the passphrase, keystrokes are captured by the Ink renderer instead, causing "gpg: signing failed: No passphrase given". The hook detects this by checking: - Whether the command triggers GPG signing (commit, tag, merge) - Whether signing is enabled via git config or explicit flags - Whether the pinentry is terminal-based vs GUI - Whether the passphrase is already cached in gpg-agent When a broken prompt would occur, the hook blocks the command (exit 2) with actionable guidance: cache passphrase, use --no-gpg-sign, switch to GUI pinentry, or increase cache timeout. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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This was referenced Mar 4, 2026
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Summary
Adds a
gpg-pinentry-guardplugin — a PreToolUse hook that prevents broken GPG pinentry prompts during git commits.Fixes #30539.
The Problem
When
commit.gpgsign=trueis enabled and the passphrase is not cached,git committriggerspinentry-curseswhich cannot read keyboard input because Claude Code's Ink renderer holds exclusive control of the terminal. The commit fails withgpg: signing failed: No passphrase given.What This Plugin Does
A Bash PreToolUse hook that detects when a git command would trigger a broken terminal pinentry and blocks it early with actionable guidance.
Detection pipeline:
commit,tag,merge)commit.gpgsign,tag.gpgsign,merge.gpgsign, or-S/-sflags)--no-gpg-signalready present? → allowgpg-agent? → allow (no pinentry needed)Files Changed
Test Results
git status,git pushgit commit --no-gpg-signgit commit -m "test"(gpgsign=true, uncached)git tag -s v1.0git add && git commit(compound)GPG_TTY=... git commit(env prefix)git -C /path commit(flag prefix)/usr/bin/git commit(full path)git --no-pager commit(extra flags)(git commit)(subshell)-e(printf safety)16/16 passing.
🤖 Generated with Claude Code