// update-claude-config.js
// Script to update Claude Desktop configuration to use the custom MCP server
import fs from 'fs';
import path from 'path';
import os from 'os';
// Claude configuration paths
const claudeDir = path.join(os.homedir(), 'AppData', 'Roaming', 'Claude');
const configFilePath = path.join(claudeDir, 'claude_desktop_config.json');
// Our configuration
const customMcpConfig = {
"mcpServers": {
"custom-extension": {
"external": true,
"port": 4323,
"host": "localhost"
}
}
};
console.log('Updating Claude Desktop configuration...');
// Make backup of existing config
function backupConfig() {
if (fs.existsSync(configFilePath)) {
const backupPath = `${configFilePath}.backup.${Date.now()}`;
fs.copyFileSync(configFilePath, backupPath);
console.log(`Created backup at ${backupPath}`);
return true;
}
return false;
}
// Update the configuration
function updateConfig() {
try {
// Create backup
backupConfig();
// Read existing config or create a new one
let config = {};
if (fs.existsSync(configFilePath)) {
config = JSON.parse(fs.readFileSync(configFilePath, 'utf8'));
}
// Update mcpServers section
config.mcpServers = config.mcpServers || {};
config.mcpServers['custom-extension'] = customMcpConfig.mcpServers['custom-extension'];
// Write updated config
fs.writeFileSync(configFilePath, JSON.stringify(config, null, 2));
console.log('Claude Desktop configuration updated successfully');
// Create reload signal
const reloadSignal = path.join(claudeDir, 'reload_config');
fs.writeFileSync(reloadSignal, Date.now().toString());
console.log('Created reload signal file');
return true;
} catch (err) {
console.error('Error updating Claude Desktop configuration:', err.message);
return false;
}
}
// Create session state file if it doesn't exist
function createSessionState() {
const sessionStatePath = path.join(claudeDir, 'session_state.json');
if (!fs.existsSync(sessionStatePath)) {
try {
const initialState = {
last_updated: Date.now(),
pending_actions: [],
bridge_info: {
status: 'initializing',
timestamp: Date.now()
}
};
fs.writeFileSync(sessionStatePath, JSON.stringify(initialState, null, 2));
console.log('Created initial session state file');
return true;
} catch (err) {
console.error('Error creating session state file:', err.message);
return false;
}
}
return true;
}
// Ensure Claude directory exists
if (!fs.existsSync(claudeDir)) {
fs.mkdirSync(claudeDir, { recursive: true });
console.log(`Created Claude directory at ${claudeDir}`);
}
// Update configuration
if (updateConfig() && createSessionState()) {
console.log('Claude Desktop is now configured to use the custom MCP server');
console.log('Please restart Claude Desktop for the changes to take effect');
} else {
console.error('Failed to update Claude Desktop configuration');
}
