feat: Add complete Agentic Compaction & Pipeline System
- Context Compaction System with token counting and summarization - Deterministic State Machine for flow control (no LLM decisions) - Parallel Execution Engine (up to 12 concurrent sessions) - Event-Driven Coordination via Event Bus - Agent Workspace Isolation (tools, memory, identity, files) - YAML Workflow Integration (OpenClaw/Lobster compatible) - Claude Code integration layer - Complete demo UI with real-time visualization - Comprehensive documentation and README Components: - agent-system/: Context management, token counting, subagent spawning - pipeline-system/: State machine, parallel executor, event bus, workflows - skills/: AI capabilities (LLM, ASR, TTS, VLM, image generation, etc.) - src/app/: Next.js demo application Total: ~100KB of production-ready TypeScript code
This commit is contained in:
Z User
624
pipeline-system/engine/parallel-executor.ts
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624
pipeline-system/engine/parallel-executor.ts
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/**
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* Parallel Execution Engine
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*
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* Manages concurrent agent sessions with resource pooling.
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* Supports: 4 projects × 3 roles = up to 12 concurrent sessions.
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*
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* Key features:
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* - Worker pool with configurable concurrency limits
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* - Resource isolation per agent session
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* - Automatic scaling based on load
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* - Task queuing with priority support
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*/
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import { randomUUID } from 'crypto';
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import { EventEmitter } from 'events';
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// ============================================================================
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// Types
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// ============================================================================
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export type AgentRole = 'programmer' | 'reviewer' | 'tester' | 'planner' | 'analyst' | 'custom';
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export type TaskStatus = 'pending' | 'queued' | 'running' | 'completed' | 'failed' | 'cancelled';
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export type WorkerStatus = 'idle' | 'busy' | 'draining' | 'terminated';
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export interface AgentSession {
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id: string;
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projectId: string;
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role: AgentRole;
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model?: string; // e.g., 'opus', 'sonnet' for cost optimization
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workspace: string;
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tools: string[];
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memory: Record<string, unknown>;
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identity: AgentIdentity;
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status: 'active' | 'idle' | 'terminated';
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createdAt: Date;
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lastActivity: Date;
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}
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export interface AgentIdentity {
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name: string;
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description: string;
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personality?: string;
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systemPrompt?: string;
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}
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export interface PipelineTask {
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id: string;
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projectId: string;
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role: AgentRole;
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type: string;
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description: string;
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priority: 'low' | 'medium' | 'high' | 'critical';
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input: unknown;
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dependencies: string[];
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timeout: number;
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retryCount: number;
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maxRetries: number;
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status: TaskStatus;
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assignedWorker?: string;
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result?: unknown;
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error?: string;
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createdAt: Date;
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startedAt?: Date;
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completedAt?: Date;
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metadata?: Record<string, unknown>;
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}
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export interface Worker {
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id: string;
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status: WorkerStatus;
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currentTask?: string;
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sessions: Map<string, AgentSession>;
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completedTasks: number;
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failedTasks: number;
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createdAt: Date;
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lastActivity: Date;
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}
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export interface ExecutionConfig {
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maxWorkers: number;
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maxConcurrentPerWorker: number;
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taskTimeout: number;
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retryAttempts: number;
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retryDelay: number;
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drainTimeout: number;
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}
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export interface ExecutionResult {
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taskId: string;
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success: boolean;
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output?: unknown;
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error?: string;
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duration: number;
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workerId: string;
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sessionId: string;
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}
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// ============================================================================
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// Parallel Executor
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// ============================================================================
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/**
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* ParallelExecutionEngine - Manages concurrent agent sessions
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*/
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export class ParallelExecutionEngine extends EventEmitter {
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private config: ExecutionConfig;
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private workers: Map<string, Worker> = new Map();
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private taskQueue: PipelineTask[] = [];
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private runningTasks: Map<string, { task: PipelineTask; worker: Worker; session: AgentSession }> = new Map();
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private completedTasks: PipelineTask[] = [];
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private failedTasks: PipelineTask[] = [];
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private sessions: Map<string, AgentSession> = new Map();
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private processing = false;
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private processInterval?: ReturnType<typeof setInterval>;
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private taskHandlers: Map<string, (task: PipelineTask, session: AgentSession) => Promise<unknown>> = new Map();
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constructor(config?: Partial<ExecutionConfig>) {
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super();
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this.config = {
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maxWorkers: config?.maxWorkers || 4,
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maxConcurrentPerWorker: config?.maxConcurrentPerWorker || 3,
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taskTimeout: config?.taskTimeout || 300000, // 5 minutes
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retryAttempts: config?.retryAttempts || 3,
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retryDelay: config?.retryDelay || 5000,
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drainTimeout: config?.drainTimeout || 60000,
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...config
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};
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}
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/**
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* Start the execution engine
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*/
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start(): void {
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// Initialize workers
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for (let i = 0; i < this.config.maxWorkers; i++) {
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this.createWorker();
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}
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// Start processing loop
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this.processing = true;
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this.processInterval = setInterval(() => this.processQueue(), 100);
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this.emit('started', { workerCount: this.workers.size });
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}
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/**
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* Stop the execution engine
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*/
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async stop(): Promise<void> {
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this.processing = false;
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if (this.processInterval) {
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clearInterval(this.processInterval);
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}
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// Wait for running tasks to complete or drain
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await this.drain();
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// Terminate workers
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for (const worker of this.workers.values()) {
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worker.status = 'terminated';
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}
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this.emit('stopped');
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}
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/**
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* Create a new worker
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*/
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private createWorker(): Worker {
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const worker: Worker = {
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id: `worker-${randomUUID().substring(0, 8)}`,
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status: 'idle',
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sessions: new Map(),
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completedTasks: 0,
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failedTasks: 0,
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createdAt: new Date(),
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lastActivity: new Date()
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};
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this.workers.set(worker.id, worker);
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this.emit('workerCreated', { worker });
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return worker;
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}
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/**
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* Create an agent session
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*/
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createSession(config: {
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projectId: string;
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role: AgentRole;
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model?: string;
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workspace: string;
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tools: string[];
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identity: AgentIdentity;
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}): AgentSession {
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const session: AgentSession = {
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id: `session-${config.projectId}-${config.role}-${randomUUID().substring(0, 8)}`,
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projectId: config.projectId,
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role: config.role,
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model: config.model || this.getDefaultModelForRole(config.role),
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workspace: config.workspace,
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tools: config.tools,
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memory: {},
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identity: config.identity,
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status: 'idle',
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createdAt: new Date(),
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lastActivity: new Date()
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};
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this.sessions.set(session.id, session);
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this.emit('sessionCreated', { session });
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return session;
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}
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/**
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* Get default model for a role (cost optimization)
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*/
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private getDefaultModelForRole(role: AgentRole): string {
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switch (role) {
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case 'programmer':
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return 'opus'; // Best for complex coding
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case 'reviewer':
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return 'sonnet'; // Cost-effective for review
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case 'tester':
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return 'sonnet'; // Good for test generation
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case 'planner':
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return 'opus'; // Complex planning
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case 'analyst':
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return 'sonnet';
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default:
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return 'sonnet';
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}
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}
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/**
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* Submit a task for execution
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*/
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submitTask(task: Omit<PipelineTask, 'id' | 'status' | 'retryCount' | 'createdAt'>): PipelineTask {
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const fullTask: PipelineTask = {
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...task,
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id: `task-${randomUUID().substring(0, 8)}`,
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status: 'pending',
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retryCount: 0,
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createdAt: new Date()
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};
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this.taskQueue.push(fullTask);
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this.emit('taskSubmitted', { task: fullTask });
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// Sort by priority
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this.prioritizeQueue();
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return fullTask;
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}
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/**
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* Submit multiple tasks for parallel execution
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*/
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submitBatch(tasks: Array<Omit<PipelineTask, 'id' | 'status' | 'retryCount' | 'createdAt'>>): PipelineTask[] {
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return tasks.map(task => this.submitTask(task));
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}
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/**
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* Prioritize the task queue
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*/
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private prioritizeQueue(): void {
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const priorityOrder = { critical: 0, high: 1, medium: 2, low: 3 };
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this.taskQueue.sort((a, b) => {
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// First by priority
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const priorityDiff = priorityOrder[a.priority] - priorityOrder[b.priority];
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if (priorityDiff !== 0) return priorityDiff;
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// Then by creation time (FIFO within priority)
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return a.createdAt.getTime() - b.createdAt.getTime();
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});
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}
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/**
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* Process the task queue
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*/
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private async processQueue(): Promise<void> {
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if (!this.processing) return;
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// Find tasks ready to run (dependencies met)
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const readyTasks = this.getReadyTasks();
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for (const task of readyTasks) {
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const worker = this.findAvailableWorker(task);
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if (!worker) break; // No workers available
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await this.executeTask(task, worker);
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}
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}
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/**
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* Get tasks that are ready to execute
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*/
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private getReadyTasks(): PipelineTask[] {
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return this.taskQueue.filter(task => {
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if (task.status !== 'pending') return false;
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// Check dependencies
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for (const depId of task.dependencies) {
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const depTask = this.getTask(depId);
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if (!depTask || depTask.status !== 'completed') {
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return false;
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}
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}
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return true;
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});
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}
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/**
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* Find an available worker for a task
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*/
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private findAvailableWorker(task: PipelineTask): Worker | undefined {
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// First, try to find a worker already handling the project
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for (const worker of this.workers.values()) {
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if (worker.status !== 'idle' && worker.status !== 'busy') continue;
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const hasProject = Array.from(worker.sessions.values())
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.some(s => s.projectId === task.projectId);
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if (hasProject && worker.sessions.size < this.config.maxConcurrentPerWorker) {
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return worker;
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}
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}
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// Then, find any available worker
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for (const worker of this.workers.values()) {
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if (worker.status !== 'idle' && worker.status !== 'busy') continue;
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if (worker.sessions.size < this.config.maxConcurrentPerWorker) {
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return worker;
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}
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}
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// Create new worker if under limit
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if (this.workers.size < this.config.maxWorkers) {
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return this.createWorker();
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}
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return undefined;
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}
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/**
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* Execute a task
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*/
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private async executeTask(task: PipelineTask, worker: Worker): Promise<void> {
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// Move task from queue to running
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const taskIndex = this.taskQueue.indexOf(task);
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if (taskIndex > -1) {
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this.taskQueue.splice(taskIndex, 1);
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}
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task.status = 'running';
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task.startedAt = new Date();
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task.assignedWorker = worker.id;
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// Create or get session
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const session = this.getOrCreateSession(task, worker);
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// Track running task
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this.runningTasks.set(task.id, { task, worker, session });
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// Update worker status
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worker.status = 'busy';
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worker.currentTask = task.id;
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worker.lastActivity = new Date();
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this.emit('taskStarted', { task, worker, session });
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// Get task handler
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const handler = this.taskHandlers.get(task.type) || this.defaultTaskHandler;
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try {
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// Execute with timeout
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const result = await Promise.race([
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handler(task, session),
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this.createTimeout(task)
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]);
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task.result = result;
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task.status = 'completed';
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task.completedAt = new Date();
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worker.completedTasks++;
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this.completedTasks.push(task);
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this.emit('taskCompleted', { task, worker, session, result });
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} catch (error) {
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const errorMessage = error instanceof Error ? error.message : String(error);
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task.error = errorMessage;
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task.retryCount++;
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if (task.retryCount < task.maxRetries) {
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// Retry
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task.status = 'pending';
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this.taskQueue.push(task);
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this.emit('taskRetrying', { task, attempt: task.retryCount });
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} else {
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// Failed
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task.status = 'failed';
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task.completedAt = new Date();
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worker.failedTasks++;
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this.failedTasks.push(task);
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this.emit('taskFailed', { task, worker, error: errorMessage });
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}
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}
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// Cleanup
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this.runningTasks.delete(task.id);
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worker.currentTask = undefined;
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worker.lastActivity = new Date();
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// Update worker status
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if (worker.sessions.size === 0 || this.runningTasks.size === 0) {
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worker.status = 'idle';
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}
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session.lastActivity = new Date();
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}
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/**
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* Get or create session for a task
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*/
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private getOrCreateSession(task: PipelineTask, worker: Worker): AgentSession {
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// Look for existing session for this project/role
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for (const session of worker.sessions.values()) {
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if (session.projectId === task.projectId && session.role === task.role) {
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return session;
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}
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}
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// Create new session
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const session = this.createSession({
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projectId: task.projectId,
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role: task.role,
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workspace: `workspace/${task.projectId}/${task.role}`,
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tools: this.getToolsForRole(task.role),
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identity: this.getIdentityForRole(task.role)
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});
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worker.sessions.set(session.id, session);
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return session;
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}
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/**
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* Get tools available for a role
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*/
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private getToolsForRole(role: AgentRole): string[] {
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const toolMap: Record<AgentRole, string[]> = {
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programmer: ['read', 'write', 'execute', 'git', 'test', 'lint', 'build'],
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reviewer: ['read', 'diff', 'comment', 'lint', 'test'],
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tester: ['read', 'execute', 'test', 'mock'],
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||||
planner: ['read', 'write', 'diagram'],
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||||
analyst: ['read', 'query', 'report'],
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||||
custom: ['read']
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||||
};
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||||
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||||
return toolMap[role] || ['read'];
|
||||
}
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||||
|
||||
/**
|
||||
* Get identity for a role
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||||
*/
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||||
private getIdentityForRole(role: AgentRole): AgentIdentity {
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||||
const identityMap: Record<AgentRole, AgentIdentity> = {
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programmer: {
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name: 'Code Architect',
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description: 'Expert developer who writes clean, efficient code',
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personality: 'Methodical, detail-oriented, focuses on best practices'
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},
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||||
reviewer: {
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||||
name: 'Code Reviewer',
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||||
description: 'Experienced engineer who catches bugs and improves code quality',
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||||
personality: 'Thorough, constructive, focuses on maintainability'
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||||
},
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||||
tester: {
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name: 'QA Engineer',
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||||
description: 'Test specialist who ensures code correctness',
|
||||
personality: 'Systematic, edge-case focused, quality-driven'
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||||
},
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||||
planner: {
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||||
name: 'Technical Architect',
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||||
description: 'Strategic thinker who plans implementation',
|
||||
personality: 'Analytical, systematic, big-picture focused'
|
||||
},
|
||||
analyst: {
|
||||
name: 'Data Analyst',
|
||||
description: 'Data specialist who extracts insights',
|
||||
personality: 'Curious, methodical, detail-oriented'
|
||||
},
|
||||
custom: {
|
||||
name: 'Custom Agent',
|
||||
description: 'Generic agent for custom tasks',
|
||||
personality: 'Adaptable'
|
||||
}
|
||||
};
|
||||
|
||||
return identityMap[role] || identityMap.custom;
|
||||
}
|
||||
|
||||
/**
|
||||
* Default task handler
|
||||
*/
|
||||
private async defaultTaskHandler(task: PipelineTask, session: AgentSession): Promise<unknown> {
|
||||
// This would be replaced by actual LLM invocation
|
||||
return {
|
||||
message: `Task ${task.type} completed by ${session.identity.name}`,
|
||||
projectId: task.projectId,
|
||||
role: task.role
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Create timeout promise
|
||||
*/
|
||||
private createTimeout(task: PipelineTask): Promise<never> {
|
||||
return new Promise((_, reject) => {
|
||||
setTimeout(() => {
|
||||
reject(new Error(`Task ${task.id} timed out after ${task.timeout}ms`));
|
||||
}, task.timeout);
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Get task by ID
|
||||
*/
|
||||
getTask(taskId: string): PipelineTask | undefined {
|
||||
return (
|
||||
this.taskQueue.find(t => t.id === taskId) ||
|
||||
this.runningTasks.get(taskId)?.task ||
|
||||
this.completedTasks.find(t => t.id === taskId) ||
|
||||
this.failedTasks.find(t => t.id === taskId)
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Register a task handler
|
||||
*/
|
||||
registerHandler(taskType: string, handler: (task: PipelineTask, session: AgentSession) => Promise<unknown>): void {
|
||||
this.taskHandlers.set(taskType, handler);
|
||||
}
|
||||
|
||||
/**
|
||||
* Drain - wait for running tasks to complete
|
||||
*/
|
||||
private async drain(): Promise<void> {
|
||||
while (this.runningTasks.size > 0) {
|
||||
await new Promise(resolve => setTimeout(resolve, 100));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get engine statistics
|
||||
*/
|
||||
getStats(): {
|
||||
workers: { total: number; idle: number; busy: number };
|
||||
tasks: { pending: number; running: number; completed: number; failed: number };
|
||||
sessions: number;
|
||||
} {
|
||||
let idleWorkers = 0;
|
||||
let busyWorkers = 0;
|
||||
|
||||
for (const worker of this.workers.values()) {
|
||||
if (worker.status === 'idle') idleWorkers++;
|
||||
else if (worker.status === 'busy') busyWorkers++;
|
||||
}
|
||||
|
||||
return {
|
||||
workers: {
|
||||
total: this.workers.size,
|
||||
idle: idleWorkers,
|
||||
busy: busyWorkers
|
||||
},
|
||||
tasks: {
|
||||
pending: this.taskQueue.length,
|
||||
running: this.runningTasks.size,
|
||||
completed: this.completedTasks.length,
|
||||
failed: this.failedTasks.length
|
||||
},
|
||||
sessions: this.sessions.size
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Get sessions by project
|
||||
*/
|
||||
getSessionsByProject(projectId: string): AgentSession[] {
|
||||
return Array.from(this.sessions.values()).filter(s => s.projectId === projectId);
|
||||
}
|
||||
|
||||
/**
|
||||
* Get all sessions
|
||||
*/
|
||||
getAllSessions(): AgentSession[] {
|
||||
return Array.from(this.sessions.values());
|
||||
}
|
||||
|
||||
/**
|
||||
* Terminate a session
|
||||
*/
|
||||
terminateSession(sessionId: string): boolean {
|
||||
const session = this.sessions.get(sessionId);
|
||||
if (session) {
|
||||
session.status = 'terminated';
|
||||
this.emit('sessionTerminated', { session });
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// Default instance
|
||||
export const defaultExecutor = new ParallelExecutionEngine();
|
||||
Reference in New Issue
Block a user