Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 | /** * Maestro Plugin - Official Plugin (ADR-004) * * Implements orchestration patterns for complex multi-agent workflows. * Part of the official plugin collection. * * @module v3/shared/plugins/official/maestro */ import type { ClaudeFlowPlugin, PluginContext, PluginConfig } from '../types.js'; import { HookEvent, HookPriority, type TaskInfo, type ErrorInfo } from '../../hooks/index.js'; /** * Maestro configuration */ export interface MaestroConfig extends PluginConfig { orchestrationMode: 'sequential' | 'parallel' | 'adaptive'; maxConcurrentWorkflows: number; workflowTimeout: number; // ms autoRecovery: boolean; checkpointInterval: number; // ms } /** * Workflow step */ export interface WorkflowStep { id: string; name: string; type: string; input: Record<string, unknown>; dependencies: string[]; assignedAgent?: string; status: 'pending' | 'running' | 'completed' | 'failed' | 'skipped'; output?: unknown; error?: string; startedAt?: Date; completedAt?: Date; } /** * Workflow definition */ export interface Workflow { id: string; name: string; description: string; steps: WorkflowStep[]; status: 'created' | 'running' | 'paused' | 'completed' | 'failed'; currentStep?: string; progress: number; createdAt: Date; startedAt?: Date; completedAt?: Date; checkpoints: Map<string, unknown>; } /** * Orchestration result */ export interface OrchestrationResult { workflowId: string; success: boolean; stepsCompleted: number; stepsTotal: number; outputs: Record<string, unknown>; errors: Array<{ stepId: string; error: string }>; duration: number; } /** * Maestro Plugin Implementation */ export class MaestroPlugin implements ClaudeFlowPlugin { readonly id = 'maestro'; readonly name = 'Maestro Workflow Orchestrator'; readonly version = '1.0.0'; readonly description = 'Complex multi-agent workflow orchestration with adaptive strategies'; private context?: PluginContext; private config: MaestroConfig; private workflows: Map<string, Workflow> = new Map(); private activeWorkflows = 0; constructor(config?: Partial<MaestroConfig>) { this.config = { enabled: true, orchestrationMode: 'adaptive', maxConcurrentWorkflows: 5, workflowTimeout: 600000, // 10 minutes autoRecovery: true, checkpointInterval: 30000, // 30 seconds ...config, }; } async initialize(context: PluginContext): Promise<void> { this.context = context; // Register hooks for workflow monitoring context.hooks?.register( HookEvent.PostTaskComplete, async (ctx) => { // Update workflow progress on task completion for (const workflow of this.workflows.values()) { if (workflow.status === 'running' && ctx.task) { this.updateWorkflowProgress(workflow, ctx.task); } } return { success: true, continueChain: true }; }, HookPriority.High, { name: 'maestro-task-complete' } ); context.hooks?.register( HookEvent.OnError, async (ctx) => { // Handle workflow errors with recovery if (this.config.autoRecovery && ctx.error) { for (const workflow of this.workflows.values()) { if (workflow.status === 'running') { this.handleWorkflowError(workflow, ctx.error); } } } return { success: true, continueChain: true }; }, HookPriority.High, { name: 'maestro-error-handler' } ); } async shutdown(): Promise<void> { // Checkpoint all running workflows for (const workflow of this.workflows.values()) { if (workflow.status === 'running') { this.checkpointWorkflow(workflow); } } this.workflows.clear(); this.context = undefined; } // ============================================================================ // Workflow Management // ============================================================================ /** * Create a new workflow */ createWorkflow( name: string, description: string, steps: Array<Omit<WorkflowStep, 'id' | 'status'>> ): Workflow { const workflow: Workflow = { id: `workflow-${Date.now()}`, name, description, steps: steps.map((step, index) => ({ ...step, id: `step-${index}`, status: 'pending', })), status: 'created', progress: 0, createdAt: new Date(), checkpoints: new Map(), }; this.workflows.set(workflow.id, workflow); return workflow; } /** * Execute a workflow */ async executeWorkflow(workflowId: string): Promise<OrchestrationResult> { const workflow = this.workflows.get(workflowId); if (!workflow) { throw new Error(`Workflow not found: ${workflowId}`); } if (this.activeWorkflows >= this.config.maxConcurrentWorkflows) { throw new Error('Maximum concurrent workflows reached'); } const startTime = Date.now(); workflow.status = 'running'; workflow.startedAt = new Date(); this.activeWorkflows++; const errors: Array<{ stepId: string; error: string }> = []; const outputs: Record<string, unknown> = {}; try { switch (this.config.orchestrationMode) { case 'sequential': await this.executeSequential(workflow, outputs, errors); break; case 'parallel': await this.executeParallel(workflow, outputs, errors); break; case 'adaptive': await this.executeAdaptive(workflow, outputs, errors); break; } workflow.status = errors.length === 0 ? 'completed' : 'failed'; workflow.completedAt = new Date(); } catch (error) { workflow.status = 'failed'; errors.push({ stepId: 'workflow', error: error instanceof Error ? error.message : String(error), }); } finally { this.activeWorkflows--; } return { workflowId, success: workflow.status === 'completed', stepsCompleted: workflow.steps.filter((s) => s.status === 'completed').length, stepsTotal: workflow.steps.length, outputs, errors, duration: Date.now() - startTime, }; } /** * Pause a workflow */ pauseWorkflow(workflowId: string): boolean { const workflow = this.workflows.get(workflowId); if (!workflow || workflow.status !== 'running') return false; this.checkpointWorkflow(workflow); workflow.status = 'paused'; return true; } /** * Resume a paused workflow */ async resumeWorkflow(workflowId: string): Promise<OrchestrationResult> { const workflow = this.workflows.get(workflowId); if (!workflow || workflow.status !== 'paused') { throw new Error('Workflow cannot be resumed'); } // Restore from checkpoint and continue return this.executeWorkflow(workflowId); } /** * Get workflow status */ getWorkflow(workflowId: string): Workflow | undefined { return this.workflows.get(workflowId); } /** * List all workflows */ listWorkflows(): Workflow[] { return Array.from(this.workflows.values()); } // ============================================================================ // Execution Strategies // ============================================================================ private async executeSequential( workflow: Workflow, outputs: Record<string, unknown>, errors: Array<{ stepId: string; error: string }> ): Promise<void> { for (const step of workflow.steps) { if (step.status !== 'pending') continue; // Check dependencies const depsComplete = step.dependencies.every((depId) => { const dep = workflow.steps.find((s) => s.id === depId); return dep?.status === 'completed'; }); if (!depsComplete) { step.status = 'skipped'; continue; } workflow.currentStep = step.id; const result = await this.executeStep(step, outputs); if (!result.success) { errors.push({ stepId: step.id, error: result.error ?? 'Unknown error' }); break; } outputs[step.id] = result.output; this.updateProgress(workflow); } } private async executeParallel( workflow: Workflow, outputs: Record<string, unknown>, errors: Array<{ stepId: string; error: string }> ): Promise<void> { const layers = this.buildExecutionLayers(workflow.steps); for (const layer of layers) { const results = await Promise.all( layer.map((step) => this.executeStep(step, outputs)) ); for (let i = 0; i < results.length; i++) { const result = results[i]; const step = layer[i]; if (!result.success) { errors.push({ stepId: step.id, error: result.error ?? 'Unknown error' }); } else { outputs[step.id] = result.output; } } this.updateProgress(workflow); } } private async executeAdaptive( workflow: Workflow, outputs: Record<string, unknown>, errors: Array<{ stepId: string; error: string }> ): Promise<void> { // Adaptive: start parallel, switch to sequential on errors const completedIds = new Set<string>(); const pendingSteps = [...workflow.steps]; let consecutiveErrors = 0; const maxConsecutiveErrors = 2; while (pendingSteps.length > 0) { // Find steps that can run (all dependencies complete) const runnableSteps = pendingSteps.filter((step) => step.dependencies.every((depId) => completedIds.has(depId)) ); if (runnableSteps.length === 0) { // No runnable steps but pending remain - circular dependency for (const step of pendingSteps) { step.status = 'skipped'; } break; } // Decide batch size based on error rate const batchSize = consecutiveErrors >= maxConsecutiveErrors ? 1 : runnableSteps.length; const batch = runnableSteps.slice(0, batchSize); const results = await Promise.all( batch.map((step) => this.executeStep(step, outputs)) ); for (let i = 0; i < results.length; i++) { const result = results[i]; const step = batch[i]; const stepIndex = pendingSteps.indexOf(step); if (stepIndex > -1) { pendingSteps.splice(stepIndex, 1); } if (!result.success) { errors.push({ stepId: step.id, error: result.error ?? 'Unknown error' }); consecutiveErrors++; } else { outputs[step.id] = result.output; completedIds.add(step.id); consecutiveErrors = 0; } } this.updateProgress(workflow); } } // ============================================================================ // Helpers // ============================================================================ private async executeStep( step: WorkflowStep, outputs: Record<string, unknown> ): Promise<{ success: boolean; output?: unknown; error?: string }> { step.status = 'running'; step.startedAt = new Date(); try { // Resolve input references from previous outputs const resolvedInput = this.resolveInputReferences(step.input, outputs); // Simulate step execution // In real implementation, this would delegate to agents via MCP await new Promise((resolve) => setTimeout(resolve, 100)); step.output = { ...resolvedInput, processed: true }; step.status = 'completed'; step.completedAt = new Date(); return { success: true, output: step.output }; } catch (error) { step.status = 'failed'; step.error = error instanceof Error ? error.message : String(error); step.completedAt = new Date(); return { success: false, error: step.error }; } } private buildExecutionLayers(steps: WorkflowStep[]): WorkflowStep[][] { const layers: WorkflowStep[][] = []; const completed = new Set<string>(); while (completed.size < steps.length) { const layer: WorkflowStep[] = []; for (const step of steps) { if (completed.has(step.id)) continue; const depsComplete = step.dependencies.every((depId) => completed.has(depId)); if (depsComplete) { layer.push(step); } } if (layer.length === 0) break; // No more runnable steps layers.push(layer); layer.forEach((step) => completed.add(step.id)); } return layers; } private resolveInputReferences( input: Record<string, unknown>, outputs: Record<string, unknown> ): Record<string, unknown> { const resolved: Record<string, unknown> = {}; for (const [key, value] of Object.entries(input)) { if (typeof value === 'string' && value.startsWith('$')) { const ref = value.slice(1); resolved[key] = outputs[ref]; } else { resolved[key] = value; } } return resolved; } private updateProgress(workflow: Workflow): void { const completed = workflow.steps.filter((s) => s.status === 'completed').length; workflow.progress = (completed / workflow.steps.length) * 100; } private updateWorkflowProgress(workflow: Workflow, taskData: TaskInfo): void { // Match task to workflow step and update const taskId = taskData.id; const step = workflow.steps.find((s) => s.id === taskId); if (step && step.status === 'running') { step.status = 'completed'; step.output = taskData.metadata; step.completedAt = new Date(); this.updateProgress(workflow); } } private handleWorkflowError(workflow: Workflow, errorData: ErrorInfo): void { const stepId = errorData.context ?? ''; const step = workflow.steps.find((s) => s.id === stepId); if (step && step.status === 'running') { step.status = 'failed'; step.error = errorData.error?.message ?? 'Unknown error'; step.completedAt = new Date(); } } private checkpointWorkflow(workflow: Workflow): void { workflow.checkpoints.set(`checkpoint-${Date.now()}`, { progress: workflow.progress, currentStep: workflow.currentStep, stepStatuses: workflow.steps.map((s) => ({ id: s.id, status: s.status })), }); } } /** * Factory function */ export function createMaestroPlugin(config?: Partial<MaestroConfig>): MaestroPlugin { return new MaestroPlugin(config); } |