mrocklin

#!/usr/bin/env python3
"""
Claude Code PreToolUse Hook: Compositional Bash Command Approval

PROBLEM
-------
Claude Code's static permission system uses prefix matching:
    "Bash(git diff:*)" matches "git diff --staged" but NOT "git -C /path diff"
    "Bash(timeout 30 pytest:*)" matches that exact timeout, not "timeout 20 pytest"