#!/usr/bin/env node
/**
* Debug Hook for Claude Code - Detailed Input Analysis
* This script logs all hook invocation details for troubleshooting
*/
import { appendFileSync, readFileSync } from 'fs';
import { join, dirname } from 'path';
import { fileURLToPath } from 'url';
const __dirname = dirname(fileURLToPath(import.meta.url));
const logFile = join(__dirname, 'debug-detailed.log');
function debugLog(message) {
const timestamp = new Date().toISOString();
const logEntry = `[${timestamp}] ${message}\n`;
try {
appendFileSync(logFile, logEntry);
} catch (error) {
console.error('Logging failed:', error.message);
}
}
function main() {
debugLog('=== HOOK INVOCATION START ===');
// Log environment
debugLog(`Process ID: ${process.pid}`);
debugLog(`Working Directory: ${process.cwd()}`);
debugLog(`Script Path: ${__filename}`);
// Log command line arguments
debugLog(`Command Line Args: ${JSON.stringify(process.argv)}`);
debugLog(`Args Count: ${process.argv.length}`);
// Log environment variables related to Claude Code
const claudeEnvVars = Object.keys(process.env)
.filter(key => key.toLowerCase().includes('claude'))
.reduce((obj, key) => {
obj[key] = process.env[key];
return obj;
}, {});
debugLog(`Claude Environment Variables: ${JSON.stringify(claudeEnvVars)}`);
// Read and log stdin
try {
const stdinData = readFileSync(0, 'utf-8');
debugLog(`STDIN Raw Length: ${stdinData.length}`);
debugLog(`STDIN Raw Content: "${stdinData}"`);
debugLog(`STDIN Hex Dump: ${Buffer.from(stdinData).toString('hex')}`);
if (stdinData.trim()) {
try {
const parsed = JSON.parse(stdinData);
debugLog(`STDIN Parsed JSON: ${JSON.stringify(parsed, null, 2)}`);
} catch (parseError) {
debugLog(`STDIN JSON Parse Error: ${parseError.message}`);
}
} else {
debugLog('STDIN is empty');
}
} catch (stdinError) {
debugLog(`STDIN Read Error: ${stdinError.message}`);
}
// Log current timestamp for correlation
debugLog(`Invocation Timestamp: ${Date.now()}`);
debugLog('=== HOOK INVOCATION END ===');
debugLog(''); // Empty line separator
}
main();
