#!/bin/bash
# PostToolUse hook: Log all tool executions to an audit trail.
#
# Appends a timestamped entry to hooks/audit.log for every tool call.
# Useful for reviewing what Claude Code did during a session.
#
# Customize: Change log_file path or add filtering logic.

input=$(cat)
tool_name=$(echo "$input" | python3 -c "import sys,json; print(json.load(sys.stdin).get('tool_name',''))" 2>/dev/null)
tool_input=$(echo "$input" | python3 -c "import sys,json; d=json.load(sys.stdin).get('tool_input',{}); print(d.get('command', d.get('file_path', d.get('pattern', str(d)[:100])))" 2>/dev/null)

timestamp=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
log_dir="$(dirname "$0")"
log_file="$log_dir/audit.log"

echo "$timestamp | $tool_name | $tool_input" >> "$log_file"

exit 0