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feat: add commit message validation to prevent LLM attribution

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- Added commit-msg hook that automatically rejects commits with AI attribution
- Provides clear LLM-friendly error messages with specific patterns to avoid
- Tested with multiple attribution patterns including emoji and Co-Authored-By
- Ensures commit messages focus on technical changes only
This commit is contained in:
Kaj Kowalski
2025-07-13 14:48:04 +02:00
parent e197aeb9b4
commit c6900cdf2f
1 changed files with 56 additions and 0 deletions
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.husky/commit-msg Executable file
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#!/bin/sh
# Check for Claude Code attribution in commit messages
# This hook prevents commits that contain self-promotional attribution
commit_msg_file="$1"
commit_msg=$(cat "$commit_msg_file")
# Define patterns that should be rejected
claude_patterns="🤖 Generated with.*Claude Code
Generated with.*Claude Code
Claude Code
claude.ai/code
Co-Authored-By: Claude
noreply@anthropic.com"
# Check each pattern
echo "$claude_patterns" | while IFS= read -r pattern; do
if [ -n "$pattern" ] && echo "$commit_msg" | grep -q "$pattern"; then
echo "❌ COMMIT REJECTED: Claude Code attribution detected"
echo ""
echo "🤖 AUTOMATED LLM INSTRUCTION:"
echo "Remove all Claude Code attribution from commit messages."
echo "Patterns to avoid:"
echo " - 🤖 Generated with [Claude Code]"
echo " - Co-Authored-By: Claude <noreply@anthropic.com>"
echo " - References to claude.ai/code"
echo " - Any Claude attribution or self-promotion"
echo ""
echo "✅ SOLUTION: Rewrite commit message without attribution"
echo "Focus on technical changes and improvements only."
echo ""
echo "Current commit message contains: '$pattern'"
exit 1
fi
done
# Check if any pattern matched (the while loop runs in a subshell)
if echo "$commit_msg" | grep -E -q "(🤖.*Generated.*Claude|Claude Code|claude\.ai/code|Co-Authored-By:.*Claude|noreply@anthropic\.com)"; then
echo "❌ COMMIT REJECTED: Claude Code attribution detected"
echo ""
echo "🤖 AUTOMATED LLM INSTRUCTION:"
echo "Remove all Claude Code attribution from commit messages."
echo "Patterns to avoid:"
echo " - 🤖 Generated with [Claude Code]"
echo " - Co-Authored-By: Claude <noreply@anthropic.com>"
echo " - References to claude.ai/code"
echo " - Any Claude attribution or self-promotion"
echo ""
echo "✅ SOLUTION: Rewrite commit message without attribution"
echo "Focus on technical changes and improvements only."
exit 1
fi
echo "✅ Commit message approved"
exit 0