claude-flow
Version:
Ruflo - Enterprise AI agent orchestration for Claude Code. Deploy 60+ specialized agents in coordinated swarms with self-learning, fault-tolerant consensus, vector memory, and MCP integration
593 lines • 20 kB
JavaScript
/**
* V3 MCP Server Implementation
*
* Optimized MCP server with:
* - Connection pooling for efficient resource usage
* - Fast tool registration (<10ms)
* - Optimized request routing (<50ms overhead)
* - Multiple transport support (stdio, http, websocket, in-process)
* - Session management with timeout handling
* - Comprehensive metrics and monitoring
*
* Performance Targets:
* - Server startup: <400ms
* - Tool registration: <10ms
* - Tool execution: <50ms overhead
*/
import { EventEmitter } from 'events';
import { platform, arch } from 'os';
import { MCPServerError, ErrorCodes, } from './types.js';
import { createToolRegistry } from './tool-registry.js';
import { createSessionManager } from './session-manager.js';
import { createConnectionPool } from './connection-pool.js';
import { createTransport, createTransportManager } from './transport/index.js';
/**
* Default server configuration
*/
const DEFAULT_CONFIG = {
name: 'Claude-Flow MCP Server V3',
version: '3.0.0',
transport: 'stdio',
host: 'localhost',
port: 3000,
enableMetrics: true,
enableCaching: true,
cacheTTL: 10000,
logLevel: 'info',
requestTimeout: 30000,
maxRequestSize: 10 * 1024 * 1024,
};
/**
* V3 MCP Server
*/
export class MCPServer extends EventEmitter {
logger;
orchestrator;
swarmCoordinator;
config;
toolRegistry;
sessionManager;
connectionPool;
transportManager;
transport;
running = false;
startTime;
startupDuration;
currentSession;
// Server information
serverInfo = {
name: 'Claude-Flow MCP Server V3',
version: '3.0.0',
};
// Protocol version
protocolVersion = {
major: 2024,
minor: 11,
patch: 5,
};
// Server capabilities
capabilities = {
logging: { level: 'info' },
tools: { listChanged: true },
resources: { listChanged: false, subscribe: false },
prompts: { listChanged: false },
};
// Request statistics
requestStats = {
total: 0,
successful: 0,
failed: 0,
totalResponseTime: 0,
};
constructor(config, logger, orchestrator, swarmCoordinator) {
super();
this.logger = logger;
this.orchestrator = orchestrator;
this.swarmCoordinator = swarmCoordinator;
this.config = { ...DEFAULT_CONFIG, ...config };
// Initialize components
this.toolRegistry = createToolRegistry(logger);
this.sessionManager = createSessionManager(logger, {
maxSessions: 100,
sessionTimeout: 30 * 60 * 1000,
});
this.transportManager = createTransportManager(logger);
// Initialize connection pool if enabled
if (this.config.connectionPool) {
this.connectionPool = createConnectionPool(this.config.connectionPool, logger, this.config.transport);
}
// Setup event handlers
this.setupEventHandlers();
}
/**
* Start the MCP server
*/
async start() {
if (this.running) {
throw new MCPServerError('Server already running');
}
const startTime = performance.now();
this.startTime = new Date();
this.logger.info('Starting MCP server', {
name: this.config.name,
version: this.config.version,
transport: this.config.transport,
});
try {
// Create and start transport
this.transport = createTransport(this.config.transport, this.logger, {
type: this.config.transport,
host: this.config.host,
port: this.config.port,
corsEnabled: this.config.corsEnabled,
corsOrigins: this.config.corsOrigins,
auth: this.config.auth,
maxRequestSize: String(this.config.maxRequestSize),
requestTimeout: this.config.requestTimeout,
});
// Setup request handler
this.transport.onRequest(async (request) => {
return await this.handleRequest(request);
});
// Setup notification handler
this.transport.onNotification(async (notification) => {
await this.handleNotification(notification);
});
// Start transport
await this.transport.start();
// Register built-in tools
await this.registerBuiltInTools();
this.running = true;
this.startupDuration = performance.now() - startTime;
this.logger.info('MCP server started', {
startupTime: `${this.startupDuration.toFixed(2)}ms`,
tools: this.toolRegistry.getToolCount(),
});
this.emit('server:started', {
startupTime: this.startupDuration,
tools: this.toolRegistry.getToolCount(),
});
}
catch (error) {
this.logger.error('Failed to start MCP server', { error });
throw new MCPServerError('Failed to start server', ErrorCodes.INTERNAL_ERROR, { error });
}
}
/**
* Stop the MCP server
*/
async stop() {
if (!this.running) {
return;
}
this.logger.info('Stopping MCP server');
try {
// Stop transport
if (this.transport) {
await this.transport.stop();
this.transport = undefined;
}
// Clear sessions
this.sessionManager.clearAll();
// Clear connection pool
if (this.connectionPool) {
await this.connectionPool.clear();
}
this.running = false;
this.currentSession = undefined;
this.logger.info('MCP server stopped');
this.emit('server:stopped');
}
catch (error) {
this.logger.error('Error stopping MCP server', { error });
throw error;
}
}
/**
* Register a tool
*/
registerTool(tool) {
return this.toolRegistry.register(tool);
}
/**
* Register multiple tools
*/
registerTools(tools) {
return this.toolRegistry.registerBatch(tools);
}
/**
* Unregister a tool
*/
unregisterTool(name) {
return this.toolRegistry.unregister(name);
}
/**
* Get health status
*/
async getHealthStatus() {
try {
const transportHealth = this.transport
? await this.transport.getHealthStatus()
: { healthy: false, error: 'Transport not initialized' };
const sessionMetrics = this.sessionManager.getSessionMetrics();
const poolStats = this.connectionPool?.getStats();
const metrics = {
registeredTools: this.toolRegistry.getToolCount(),
totalRequests: this.requestStats.total,
successfulRequests: this.requestStats.successful,
failedRequests: this.requestStats.failed,
totalSessions: sessionMetrics.total,
activeSessions: sessionMetrics.active,
...(transportHealth.metrics || {}),
};
if (poolStats) {
metrics.poolConnections = poolStats.totalConnections;
metrics.poolIdleConnections = poolStats.idleConnections;
metrics.poolBusyConnections = poolStats.busyConnections;
}
return {
healthy: this.running && transportHealth.healthy,
error: transportHealth.error,
metrics,
};
}
catch (error) {
return {
healthy: false,
error: error instanceof Error ? error.message : 'Unknown error',
};
}
}
/**
* Get server metrics
*/
getMetrics() {
const sessionMetrics = this.sessionManager.getSessionMetrics();
const registryStats = this.toolRegistry.getStats();
return {
totalRequests: this.requestStats.total,
successfulRequests: this.requestStats.successful,
failedRequests: this.requestStats.failed,
averageResponseTime: this.requestStats.total > 0
? this.requestStats.totalResponseTime / this.requestStats.total
: 0,
activeSessions: sessionMetrics.active,
toolInvocations: Object.fromEntries(registryStats.topTools.map((t) => [t.name, t.calls])),
errors: {},
lastReset: this.startTime || new Date(),
startupTime: this.startupDuration,
uptime: this.startTime ? Date.now() - this.startTime.getTime() : 0,
};
}
/**
* Get all sessions
*/
getSessions() {
return this.sessionManager.getActiveSessions();
}
/**
* Get session by ID
*/
getSession(sessionId) {
return this.sessionManager.getSession(sessionId);
}
/**
* Terminate a session
*/
terminateSession(sessionId) {
const result = this.sessionManager.closeSession(sessionId, 'Terminated by server');
if (this.currentSession?.id === sessionId) {
this.currentSession = undefined;
}
return result;
}
/**
* Handle incoming request
*/
async handleRequest(request) {
const startTime = performance.now();
this.requestStats.total++;
this.logger.debug('Handling request', {
id: request.id,
method: request.method,
});
try {
// Handle initialization
if (request.method === 'initialize') {
return await this.handleInitialize(request);
}
// Get or create session
const session = this.getOrCreateSession();
// Check initialization
if (!session.isInitialized && request.method !== 'initialized') {
return this.createErrorResponse(request.id, ErrorCodes.SERVER_NOT_INITIALIZED, 'Server not initialized');
}
// Update session activity
this.sessionManager.updateActivity(session.id);
// Route request
const response = await this.routeRequest(request);
const duration = performance.now() - startTime;
this.requestStats.successful++;
this.requestStats.totalResponseTime += duration;
this.logger.debug('Request completed', {
id: request.id,
method: request.method,
duration: `${duration.toFixed(2)}ms`,
});
return response;
}
catch (error) {
const duration = performance.now() - startTime;
this.requestStats.failed++;
this.requestStats.totalResponseTime += duration;
this.logger.error('Request failed', {
id: request.id,
method: request.method,
error,
});
return this.createErrorResponse(request.id, ErrorCodes.INTERNAL_ERROR, error instanceof Error ? error.message : 'Internal error');
}
}
/**
* Handle notification
*/
async handleNotification(notification) {
this.logger.debug('Handling notification', { method: notification.method });
switch (notification.method) {
case 'initialized':
this.logger.info('Client initialized notification received');
break;
case 'notifications/cancelled':
this.logger.debug('Request cancelled', notification.params);
break;
default:
this.logger.debug('Unknown notification', { method: notification.method });
}
}
/**
* Handle initialize request
*/
async handleInitialize(request) {
const params = request.params;
if (!params) {
return this.createErrorResponse(request.id, ErrorCodes.INVALID_PARAMS, 'Invalid params');
}
// Create and initialize session
const session = this.sessionManager.createSession(this.config.transport);
this.sessionManager.initializeSession(session.id, params);
this.currentSession = session;
const result = {
protocolVersion: this.protocolVersion,
capabilities: this.capabilities,
serverInfo: this.serverInfo,
instructions: 'Claude-Flow MCP Server V3 ready for tool execution',
};
this.logger.info('Session initialized', {
sessionId: session.id,
clientInfo: params.clientInfo,
});
return {
jsonrpc: '2.0',
id: request.id,
result,
};
}
/**
* Route request to appropriate handler
*/
async routeRequest(request) {
switch (request.method) {
case 'tools/list':
return this.handleToolsList(request);
case 'tools/call':
return this.handleToolsCall(request);
case 'resources/list':
return this.handleResourcesList(request);
case 'prompts/list':
return this.handlePromptsList(request);
case 'ping':
return {
jsonrpc: '2.0',
id: request.id,
result: { pong: true, timestamp: Date.now() },
};
default:
// Try to execute as tool call (backwards compatibility)
if (this.toolRegistry.hasTool(request.method)) {
return this.handleToolExecution(request);
}
return this.createErrorResponse(request.id, ErrorCodes.METHOD_NOT_FOUND, `Method not found: ${request.method}`);
}
}
/**
* Handle tools/list request
*/
handleToolsList(request) {
const tools = this.toolRegistry.listTools().map((t) => ({
name: t.name,
description: t.description,
inputSchema: this.toolRegistry.getTool(t.name)?.inputSchema,
}));
return {
jsonrpc: '2.0',
id: request.id,
result: { tools },
};
}
/**
* Handle tools/call request
*/
async handleToolsCall(request) {
const params = request.params;
if (!params?.name) {
return this.createErrorResponse(request.id, ErrorCodes.INVALID_PARAMS, 'Tool name is required');
}
const context = {
sessionId: this.currentSession?.id || 'unknown',
requestId: request.id,
orchestrator: this.orchestrator,
swarmCoordinator: this.swarmCoordinator,
};
const result = await this.toolRegistry.execute(params.name, params.arguments || {}, context);
return {
jsonrpc: '2.0',
id: request.id,
result,
};
}
/**
* Handle direct tool execution (backwards compatibility)
*/
async handleToolExecution(request) {
const context = {
sessionId: this.currentSession?.id || 'unknown',
requestId: request.id,
orchestrator: this.orchestrator,
swarmCoordinator: this.swarmCoordinator,
};
const result = await this.toolRegistry.execute(request.method, request.params || {}, context);
return {
jsonrpc: '2.0',
id: request.id,
result,
};
}
/**
* Handle resources/list request
*/
handleResourcesList(request) {
return {
jsonrpc: '2.0',
id: request.id,
result: { resources: [] },
};
}
/**
* Handle prompts/list request
*/
handlePromptsList(request) {
return {
jsonrpc: '2.0',
id: request.id,
result: { prompts: [] },
};
}
/**
* Get or create current session
*/
getOrCreateSession() {
if (this.currentSession) {
return this.currentSession;
}
const session = this.sessionManager.createSession(this.config.transport);
this.currentSession = session;
return session;
}
/**
* Create error response
*/
createErrorResponse(id, code, message) {
return {
jsonrpc: '2.0',
id,
error: { code, message },
};
}
/**
* Register built-in tools
*/
async registerBuiltInTools() {
// System info tool
this.registerTool({
name: 'system/info',
description: 'Get system information',
inputSchema: { type: 'object', properties: {} },
handler: async () => ({
name: this.serverInfo.name,
version: this.serverInfo.version,
platform: platform(),
arch: arch(),
runtime: 'Node.js',
uptime: this.startTime ? Date.now() - this.startTime.getTime() : 0,
}),
category: 'system',
});
// Health check tool
this.registerTool({
name: 'system/health',
description: 'Get system health status',
inputSchema: { type: 'object', properties: {} },
handler: async () => await this.getHealthStatus(),
category: 'system',
cacheable: true,
cacheTTL: 2000,
});
// Metrics tool
this.registerTool({
name: 'system/metrics',
description: 'Get server metrics',
inputSchema: { type: 'object', properties: {} },
handler: async () => this.getMetrics(),
category: 'system',
cacheable: true,
cacheTTL: 1000,
});
// Tools list tool
this.registerTool({
name: 'tools/list-detailed',
description: 'List all registered tools with details',
inputSchema: {
type: 'object',
properties: {
category: { type: 'string', description: 'Filter by category' },
},
},
handler: async (input) => {
const params = input;
if (params.category) {
return this.toolRegistry.getByCategory(params.category);
}
return this.toolRegistry.listTools();
},
category: 'system',
});
this.logger.info('Built-in tools registered', {
count: 4,
});
}
/**
* Setup event handlers
*/
setupEventHandlers() {
// Tool events
this.toolRegistry.on('tool:registered', (name) => {
this.emit('tool:registered', name);
});
this.toolRegistry.on('tool:called', (data) => {
this.emit('tool:called', data);
});
this.toolRegistry.on('tool:completed', (data) => {
this.emit('tool:completed', data);
});
this.toolRegistry.on('tool:error', (data) => {
this.emit('tool:error', data);
});
// Session events
this.sessionManager.on('session:created', (session) => {
this.emit('session:created', session);
});
this.sessionManager.on('session:closed', (data) => {
this.emit('session:closed', data);
});
this.sessionManager.on('session:expired', (session) => {
this.emit('session:expired', session);
});
}
}
/**
* Create an MCP server instance
*/
export function createMCPServer(config, logger, orchestrator, swarmCoordinator) {
return new MCPServer(config, logger, orchestrator, swarmCoordinator);
}
//# sourceMappingURL=server.js.map