SPTFlo v3 Migration Roadmap

Project: SPTFlo v2.x → v3.0 Migration Timeline: 20 weeks (5 months) Team Size: 2-3 core developers + community contributors Start Date: 2026-01-06 (planned) Target Release: 2026-06-01

Overview
Phase Breakdown
Sprint Details
Team Structure
Risk Management
Success Criteria
Appendices

Overview

Vision

Transform SPTFlo from a monolithic orchestration system into a modular, agentic-flow-native platform with clear domain boundaries, plugin extensibility, and superior performance.

Key Objectives

Simplify: Reduce codebase by 40% (130k → 78k lines)
Modularize: Organize by domain (DDD), not technical layer
Extend: Plugin system for optional features
Integrate: Native agentic-flow foundation
Optimize: 5x performance improvement on key operations
Maintain: 100% feature parity with v2.x

Scope

In Scope:

Core domains: agent-lifecycle, task-execution, memory-management, coordination
Plugin system architecture
MCP server v3 with enhanced tools
CLI v3 (MCP-first)
Migration tooling and guides
Comprehensive documentation

Out of Scope (Defer to v3.1+):

Distributed multi-node deployment
GraphQL API
Web UI
Multi-tenancy
Advanced observability (OpenTelemetry)

Principles

Parallel Development: v2 maintenance and v3 development run in parallel
Incremental Delivery: Working software every sprint
Test-Driven: Write tests first, then implementation
Documentation-First: Update docs before code
Community Involvement: Open design process, accept contributions

Phase Breakdown

Phase 1: Foundation         [Weeks 1-4]   ████░░░░░░░░░░░░░░░░
Phase 2: Core Domains       [Weeks 5-12]  ░░░░████████░░░░░░░░
Phase 3: Plugin System      [Weeks 13-16] ░░░░░░░░░░░░████░░░░
Phase 4: Integration        [Weeks 17-20] ░░░░░░░░░░░░░░░░████

Phase 1: Foundation (Weeks 1-4)

Goal: Establish v3 architecture foundation

Deliverables:

[ ] src-v3/ directory structure
[ ] Shared kernel (types, events, errors)
[ ] Infrastructure layer (event-bus, logger, persistence)
[ ] Plugin system core
[ ] Testing framework (Vitest)
[ ] CI/CD for v3

Key Metrics:

Foundation code: ~5,000 lines
Test coverage: >90%
Build time: <10s
All foundation tests passing

Phase 2: Core Domains (Weeks 5-12)

Goal: Implement four core bounded contexts

Deliverables:

[ ] Agent Lifecycle domain (weeks 5-6)
[ ] Task Execution domain (weeks 7-8)
[ ] Memory Management domain (weeks 9-10)
[ ] Coordination Engine (weeks 11-12)

Key Metrics:

Each domain: ~10,000 lines
Total core: ~40,000 lines
Test coverage: >85% per domain
Integration tests for cross-domain

Phase 3: Plugin System (Weeks 13-16)

Goal: Extract specialized features as plugins

Deliverables:

[ ] HiveMind plugin (week 13)
[ ] Maestro plugin (week 14)
[ ] Neural plugin (week 15)
[ ] Enterprise plugin (week 16)

Key Metrics:

Each plugin: ~5,000 lines
Plugin loading: <100ms
Backward compatibility maintained

Phase 4: Integration & Release (Weeks 17-20)

Goal: Test, optimize, document, release

Deliverables:

[ ] End-to-end testing (week 17)
[ ] Performance optimization (week 18)
[ ] Migration guide and tooling (week 19)
[ ] Beta release and final adjustments (week 20)

Key Metrics:

All features migrated
Performance targets met
Documentation complete
Beta testers satisfied

Sprint Details

Sprint 1 (Week 1): Project Setup & Shared Kernel

Objectives:

Set up v3 development environment
Create directory structure
Implement shared kernel types
Set up testing infrastructure

Tasks:

Day 1-2: Environment Setup

bash

# Create v3 branch
git checkout -b v3-development

# Create directory structure
mkdir -p src-v3/{shared-kernel,infrastructure,agent-lifecycle,task-execution,memory-management,coordination}

# Set up package.json for v3
cp package.json package-v3.json
# Update scripts for dual build

Day 3-4: Shared Kernel

typescript

// src-v3/shared-kernel/types/
- agent-types.ts        // AgentId, AgentType, AgentStatus
- task-types.ts         // TaskId, TaskType, TaskStatus
- memory-types.ts       // MemoryEntry, MemoryQuery
- event-types.ts        // DomainEvent base classes

// src-v3/shared-kernel/events/
- agent-events.ts       // AgentSpawned, AgentTerminated
- task-events.ts        // TaskCreated, TaskCompleted
- system-events.ts      // SystemStarted, SystemShutdown

// src-v3/shared-kernel/errors/
- domain-errors.ts      // DomainError base class
- application-errors.ts // ValidationError, NotFoundError

Day 5: Testing Setup

bash

# Install Vitest
npm install -D vitest vite @vitest/ui

# Create vitest.config.ts
# Set up test utilities
# Create first test: shared-kernel.test.ts

Deliverables:

[ ] Branch v3-development created
[ ] Directory structure complete
[ ] 50+ shared types defined
[ ] 20+ event classes defined
[ ] 10+ error classes defined
[ ] Testing framework operational
[ ] First tests passing (>90% coverage)

Success Criteria:

bash

npm run test              # All tests pass
npm run typecheck         # No TypeScript errors
npm run lint              # No linting errors

Sprint 2 (Week 2): Infrastructure Layer

Objectives:

Event bus implementation
Logging service
Persistence layer
Configuration management

Tasks:

Event Bus (Day 1-2)

typescript

// src-v3/infrastructure/event-bus/event-bus.ts
export class EventBus implements IEventBus {
  private handlers = new Map<string, EventHandler[]>();

  emit(event: DomainEvent): void {
    const handlers = this.handlers.get(event.type) || [];
    handlers.forEach(handler => handler(event));
  }

  on(eventType: string, handler: EventHandler): void {
    const handlers = this.handlers.get(eventType) || [];
    handlers.push(handler);
    this.handlers.set(eventType, handlers);
  }

  // off, once, etc.
}

// Tests
- event-bus.test.ts
- event-handler.test.ts

Logging Service (Day 2-3)

typescript

// src-v3/infrastructure/logging/logger.ts
export class Logger implements ILogger {
  constructor(
    private config: LogConfig,
    private transports: ILogTransport[]
  ) {}

  info(message: string, meta?: any): void;
  warn(message: string, meta?: any): void;
  error(message: string, error?: Error): void;
  debug(message: string, meta?: any): void;
}

// Transports
- ConsoleTransport
- FileTransport
- StructuredLogTransport (JSON)

// Tests
- logger.test.ts
- transports.test.ts

Persistence Layer (Day 3-4)

typescript

// src-v3/infrastructure/persistence/
- connection-pool.ts    // Database connection pooling
- migrations.ts         // Schema migrations
- repositories/
  - base-repository.ts  // Generic repository pattern

// Tests
- connection-pool.test.ts
- migrations.test.ts
- base-repository.test.ts

Configuration (Day 5)

typescript

// src-v3/infrastructure/config/config-manager.ts
export class ConfigManager {
  private config: SptFlowConfig;

  load(path?: string): Promise<void>;
  get<T>(key: string): T;
  set(key: string, value: any): void;
  validate(): ValidationResult;
}

// Config schema
- config-schema.ts
- default-config.ts

// Tests
- config-manager.test.ts
- config-validation.test.ts

Deliverables:

[ ] EventBus with pub/sub
[ ] Logger with multiple transports
[ ] Connection pool for SQLite
[ ] ConfigManager with validation
[ ] All infrastructure tests passing (>90% coverage)

Sprint 3 (Week 3): Plugin System Core

Objectives:

Plugin interface definition
Plugin loader
Plugin lifecycle management
Example plugin

Plugin Interface (Day 1)

typescript

// src-v3/infrastructure/plugins/plugin-interface.ts
export interface SptFlowPlugin {
  readonly name: string;
  readonly version: string;
  readonly dependencies?: string[];

  initialize(context: PluginContext): Promise<void>;
  shutdown(): Promise<void>;

  // Optional hooks
  registerAgentTypes?(): AgentTypeDefinition[];
  registerTaskTypes?(): TaskTypeDefinition[];
  registerMCPTools?(): MCPTool[];
  registerCLICommands?(): Command[];
  registerMemoryBackends?(): MemoryBackendFactory[];
}

export interface PluginContext {
  eventBus: IEventBus;
  logger: ILogger;
  config: ConfigManager;
  services: {
    agentService?: AgentLifecycleService;
    taskService?: TaskExecutionService;
    memoryService?: MemoryService;
  };
}

Plugin Loader (Day 2-3)

typescript

// src-v3/infrastructure/plugins/plugin-loader.ts
export class PluginLoader {
  private plugins = new Map<string, SptFlowPlugin>();
  private initialized = new Set<string>();

  async loadPlugin(plugin: SptFlowPlugin): Promise<void> {
    // Validate plugin
    this.validatePlugin(plugin);

    // Check dependencies
    await this.checkDependencies(plugin);

    // Initialize plugin
    await plugin.initialize(this.createContext());

    // Register plugin
    this.plugins.set(plugin.name, plugin);
    this.initialized.add(plugin.name);

    this.logger.info(`Plugin loaded: ${plugin.name}`);
  }

  async unloadPlugin(name: string): Promise<void> {
    const plugin = this.plugins.get(name);
    if (!plugin) return;

    // Shutdown plugin
    await plugin.shutdown();

    // Unregister
    this.plugins.delete(name);
    this.initialized.delete(name);
  }

  getPlugin(name: string): SptFlowPlugin | undefined;
  listPlugins(): SptFlowPlugin[];
}

Example Plugin (Day 4)

typescript

// src-v3/plugins/example/example-plugin.ts
export class ExamplePlugin implements SptFlowPlugin {
  readonly name = 'example';
  readonly version = '1.0.0';

  async initialize(context: PluginContext): Promise<void> {
    context.logger.info('Example plugin initializing...');

    // Register custom agent type
    context.services.agentService?.registerAgentType({
      type: 'example-agent',
      capabilities: {/* ... */}
    });

    // Subscribe to events
    context.eventBus.on('task:created', this.handleTaskCreated);
  }

  async shutdown(): Promise<void> {
    // Cleanup
  }

  registerMCPTools(): MCPTool[] {
    return [{
      name: 'example/hello',
      description: 'Example tool',
      handler: async () => ({ message: 'Hello from plugin!' })
    }];
  }

  private handleTaskCreated(event: TaskCreated): void {
    // Handle event
  }
}

Tests (Day 5)

typescript

// plugin-loader.test.ts
describe('PluginLoader', () => {
  it('should load plugin successfully');
  it('should validate plugin interface');
  it('should check dependencies');
  it('should handle initialization errors');
  it('should unload plugin cleanly');
  it('should prevent duplicate plugins');
});

// example-plugin.test.ts
describe('ExamplePlugin', () => {
  it('should initialize correctly');
  it('should register agent types');
  it('should provide MCP tools');
  it('should handle events');
});

Deliverables:

[ ] Plugin interface defined
[ ] PluginLoader implementation
[ ] Example plugin working
[ ] Plugin tests (>85% coverage)
[ ] Plugin developer guide

Sprint 4 (Week 4): CI/CD & Documentation

Objectives:

Set up CI/CD pipeline for v3
Documentation structure
API documentation generation
Migration planning

CI/CD Setup (Day 1-2)

yaml

# .github/workflows/v3-ci.yml
name: SPTFlo v3 CI

on:
  push:
    branches: [v3-development]
  pull_request:
    branches: [v3-development]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: '20'

      - name: Install dependencies
        run: npm ci

      - name: Type check
        run: npm run typecheck:v3

      - name: Lint
        run: npm run lint:v3

      - name: Test
        run: npm run test:v3

      - name: Coverage
        run: npm run coverage:v3

  build:
    runs-on: ubuntu-latest
    steps:
      - name: Build v3
        run: npm run build:v3

      - name: Package
        run: npm pack

  benchmark:
    runs-on: ubuntu-latest
    steps:
      - name: Run benchmarks
        run: npm run benchmark:v3

      - name: Compare with v2
        run: npm run benchmark:compare

Documentation (Day 3-4)

markdown

docs/
├── v3/
│   ├── README.md                 # v3 overview
│   ├── getting-started.md        # Quick start guide
│   ├── architecture/
│   │   ├── overview.md
│   │   ├── domains.md            # Domain descriptions
│   │   ├── plugin-system.md
│   │   └── adrs/                 # Architecture decisions
│   ├── guides/
│   │   ├── agent-lifecycle.md
│   │   ├── task-execution.md
│   │   ├── memory-management.md
│   │   ├── plugin-development.md
│   │   └── migration-from-v2.md
│   ├── api/
│   │   ├── mcp-tools.md          # MCP tool reference
│   │   ├── cli-commands.md       # CLI reference
│   │   └── typescript-api.md     # Programmatic API
│   └── contributing/
│       ├── setup.md
│       ├── coding-standards.md
│       └── testing.md

API Documentation (Day 4-5)

bash

# Install TypeDoc
npm install -D typedoc

# Generate API docs
npx typedoc --out docs/api src-v3/

# Generate MCP tool schema
npm run mcp:generate-schema

Migration Planning (Day 5)

markdown

# docs/v3/guides/migration-from-v2.md

## Overview
Step-by-step guide for migrating from v2 to v3

## Breaking Changes
- [List all breaking changes]

## Migration Checklist
- [ ] Update configuration file
- [ ] Migrate custom agents
- [ ] Update CLI scripts
- [ ] Migrate data
- [ ] Test thoroughly

## Automated Migration Tool
```bash
npx sptflo migrate v2-to-v3

Common Issues

[Troubleshooting guide]


**Deliverables:**
- [ ] CI/CD pipeline running
- [ ] Documentation structure complete
- [ ] API docs auto-generated
- [ ] Migration guide drafted
- [ ] Benchmarking suite set up

**Phase 1 Complete! 🎉**

At this point, we have:
- ✅ Solid foundation for v3
- ✅ Shared kernel types and events
- ✅ Infrastructure layer
- ✅ Plugin system core
- ✅ Testing and CI/CD
- ✅ Documentation framework

**Checkpoint Metrics:**
- Lines of code: ~5,000
- Test coverage: >90%
- Build time: <10s
- CI/CD: Green
- Documentation: 70% complete

---

### Sprints 5-6 (Weeks 5-6): Agent Lifecycle Domain

**Goal:** Implement complete agent lifecycle management

**Domain Model (Sprint 5, Day 1-2)**
```typescript
// src-v3/agent-lifecycle/domain/models/agent.ts
export class Agent extends AggregateRoot {
  private constructor(
    readonly id: AgentId,
    private type: AgentType,
    private status: AgentStatus,
    private capabilities: AgentCapabilities,
    private metrics: AgentMetrics
  ) {
    super();
  }

  static create(template: AgentTemplate): Agent {
    const agent = new Agent(
      AgentId.generate(),
      template.type,
      AgentStatus.Initializing,
      template.capabilities,
      AgentMetrics.initial()
    );

    agent.addDomainEvent(new AgentCreated(agent.id, agent.type));
    return agent;
  }

  spawn(): void {
    if (this.status !== AgentStatus.Initializing) {
      throw new InvalidStateTransition('Cannot spawn non-initializing agent');
    }

    this.status = AgentStatus.Idle;
    this.addDomainEvent(new AgentSpawned(this.id, new Date()));
  }

  assignTask(taskId: TaskId): void {
    if (this.status !== AgentStatus.Idle) {
      throw new AgentNotAvailable(this.id);
    }

    this.status = AgentStatus.Busy;
    this.addDomainEvent(new TaskAssignedToAgent(this.id, taskId));
  }

  completeTask(): void {
    this.status = AgentStatus.Idle;
    this.metrics.tasksCompleted++;
    this.addDomainEvent(new AgentTaskCompleted(this.id));
  }

  terminate(): void {
    this.status = AgentStatus.Terminated;
    this.addDomainEvent(new AgentTerminated(this.id, new Date()));
  }

  reportHealth(): AgentHealth {
    return new AgentHealth(
      this.id,
      this.calculateHealthScore(),
      this.metrics,
      new Date()
    );
  }

  private calculateHealthScore(): number {
    // Calculate based on metrics
    const successRate = this.metrics.tasksCompleted /
      (this.metrics.tasksCompleted + this.metrics.tasksFailed);

    return successRate * this.metrics.uptime / this.metrics.totalTime;
  }
}

Repository Interface (Sprint 5, Day 2-3)

typescript

// src-v3/agent-lifecycle/domain/interfaces/agent-repository.ts
export interface IAgentRepository {
  save(agent: Agent): Promise<void>;
  findById(id: AgentId): Promise<Agent | null>;
  findByType(type: AgentType): Promise<Agent[]>;
  findByStatus(status: AgentStatus): Promise<Agent[]>;
  findAll(): Promise<Agent[]>;
  delete(id: AgentId): Promise<void>;
}

Application Service (Sprint 5, Day 3-5)

typescript

// src-v3/agent-lifecycle/application/services/agent-lifecycle-service.ts
export class AgentLifecycleService {
  constructor(
    private agentRepository: IAgentRepository,
    private agenticFlowClient: IAgenticFlowClient,
    private eventBus: IEventBus,
    private logger: ILogger
  ) {}

  async spawnAgent(template: AgentTemplate): Promise<AgentId> {
    this.logger.info('Spawning agent', { type: template.type });

    // Create domain model
    const agent = Agent.create(template);

    // Use agentic-flow to spawn actual agent
    await this.agenticFlowClient.spawnAgent({
      id: agent.id.value,
      type: template.type,
      capabilities: template.capabilities
    });

    // Spawn in domain
    agent.spawn();

    // Save to repository
    await this.agentRepository.save(agent);

    // Publish domain events
    agent.getDomainEvents().forEach(event => {
      this.eventBus.emit(event);
    });

    this.logger.info('Agent spawned', { agentId: agent.id.value });

    return agent.id;
  }

  async terminateAgent(agentId: AgentId): Promise<void> {
    const agent = await this.agentRepository.findById(agentId);
    if (!agent) {
      throw new AgentNotFoundError(agentId);
    }

    // Terminate in agentic-flow
    await this.agenticFlowClient.terminateAgent(agentId.value);

    // Terminate in domain
    agent.terminate();

    // Save state
    await this.agentRepository.save(agent);

    // Publish events
    agent.getDomainEvents().forEach(event => {
      this.eventBus.emit(event);
    });
  }

  async getAgentHealth(agentId: AgentId): Promise<AgentHealth> {
    const agent = await this.agentRepository.findById(agentId);
    if (!agent) {
      throw new AgentNotFoundError(agentId);
    }

    return agent.reportHealth();
  }

  async scaleAgentPool(poolId: string, targetSize: number): Promise<void> {
    // Implementation for pool scaling
  }
}

Infrastructure Repository (Sprint 6, Day 1-2)

typescript

// src-v3/agent-lifecycle/infrastructure/repositories/agent-repository.ts
export class AgentRepository implements IAgentRepository {
  constructor(
    private db: Database,
    private mapper: AgentMapper
  ) {}

  async save(agent: Agent): Promise<void> {
    const data = this.mapper.toPersistence(agent);

    await this.db.run(`
      INSERT OR REPLACE INTO agents (
        id, type, status, capabilities, metrics, created_at, updated_at
      ) VALUES (?, ?, ?, ?, ?, ?, ?)
    `, [
      data.id,
      data.type,
      data.status,
      JSON.stringify(data.capabilities),
      JSON.stringify(data.metrics),
      data.createdAt,
      data.updatedAt
    ]);
  }

  async findById(id: AgentId): Promise<Agent | null> {
    const row = await this.db.get(`
      SELECT * FROM agents WHERE id = ?
    `, [id.value]);

    if (!row) return null;

    return this.mapper.toDomain(row);
  }

  // ... other methods
}

// Mapper
export class AgentMapper {
  toPersistence(agent: Agent): AgentPersistence {
    // Map domain model to persistence model
  }

  toDomain(data: AgentPersistence): Agent {
    // Reconstruct domain model from data
  }
}

API Layer - CLI (Sprint 6, Day 2-3)

typescript

// src-v3/agent-lifecycle/api/cli/spawn-agent-command.ts
export class SpawnAgentCommand implements Command {
  constructor(
    private agentService: AgentLifecycleService,
    private outputter: IOutputter
  ) {}

  async execute(args: SpawnAgentArgs): Promise<void> {
    const spinner = this.outputter.spinner('Spawning agent...');

    try {
      const template = this.createTemplate(args);
      const agentId = await this.agentService.spawnAgent(template);

      spinner.succeed(`Agent spawned: ${agentId.value}`);

      this.outputter.table([
        ['Agent ID', agentId.value],
        ['Type', template.type],
        ['Status', 'idle'],
        ['Capabilities', template.capabilities.join(', ')]
      ]);
    } catch (error) {
      spinner.fail('Failed to spawn agent');
      throw error;
    }
  }

  private createTemplate(args: SpawnAgentArgs): AgentTemplate {
    return {
      type: args.type as AgentType,
      capabilities: this.parseCapabilities(args.capabilities),
      // ... more fields
    };
  }
}

API Layer - MCP (Sprint 6, Day 3-4)

typescript

// src-v3/agent-lifecycle/api/mcp/agent-tools.ts
export function createAgentTools(
  agentService: AgentLifecycleService
): MCPTool[] {
  return [
    {
      name: 'agent/spawn',
      description: 'Spawn a new agent',
      inputSchema: {
        type: 'object',
        properties: {
          type: {
            type: 'string',
            enum: ['researcher', 'coder', 'analyst', /* ... */]
          },
          capabilities: {
            type: 'array',
            items: { type: 'string' }
          }
        },
        required: ['type']
      },
      handler: async (input, context) => {
        const template = this.parseTemplate(input);
        const agentId = await agentService.spawnAgent(template);

        return {
          agentId: agentId.value,
          status: 'spawned'
        };
      }
    },

    {
      name: 'agent/terminate',
      description: 'Terminate an agent',
      inputSchema: {
        type: 'object',
        properties: {
          agentId: { type: 'string' }
        },
        required: ['agentId']
      },
      handler: async (input) => {
        await agentService.terminateAgent(AgentId.from(input.agentId));
        return { status: 'terminated' };
      }
    },

    {
      name: 'agent/health',
      description: 'Get agent health',
      inputSchema: {
        type: 'object',
        properties: {
          agentId: { type: 'string' }
        },
        required: ['agentId']
      },
      handler: async (input) => {
        const health = await agentService.getAgentHealth(
          AgentId.from(input.agentId)
        );

        return health.toJSON();
      }
    }
  ];
}

Tests (Sprint 6, Day 4-5)

typescript

// Domain tests
describe('Agent', () => {
  it('should create agent from template');
  it('should spawn successfully');
  it('should transition to busy when task assigned');
  it('should return to idle when task completed');
  it('should calculate health score correctly');
  it('should emit domain events');
});

// Service tests
describe('AgentLifecycleService', () => {
  it('should spawn agent via agentic-flow');
  it('should save agent to repository');
  it('should publish domain events');
  it('should handle spawn errors');
  it('should terminate agent cleanly');
});

// Integration tests
describe('Agent Lifecycle Integration', () => {
  it('should spawn, assign task, and terminate agent');
  it('should track agent metrics correctly');
  it('should handle concurrent spawns');
});

Deliverables (Sprints 5-6):

[ ] Agent domain model complete
[ ] AgentLifecycleService implemented
[ ] AgentRepository with SQLite backend
[ ] CLI commands: spawn, terminate, list, health
[ ] MCP tools: agent/spawn, agent/terminate, agent/health
[ ] Comprehensive tests (>85% coverage)
[ ] Integration with agentic-flow

Sprints 7-8 (Weeks 7-8): Task Execution Domain

[Similar detailed breakdown for task execution domain]

Sprints 9-10 (Weeks 9-10): Memory Management Domain

[Similar detailed breakdown for memory domain]

Sprints 11-12 (Weeks 11-12): Coordination Engine

[Similar detailed breakdown for coordination]

Team Structure

Core Team (2-3 developers)

Architect (1)

Define architecture
Review PRs
Make technical decisions
Guide implementation

Backend Developer (1-2)

Implement domains
Write tests
Performance optimization
Integration with agentic-flow

DevOps/Infrastructure (0.5)

CI/CD setup
Build optimization
Deployment automation
Monitoring

Community Contributors

Documentation (2-3)

Write guides
API documentation
Examples
Migration guides

Testing (2-3)

Write tests
Performance testing
Integration testing
Bug fixes

Plugins (5-10)

Develop community plugins
Test plugin system
Provide feedback

Risk Management

Technical Risks

Risk	Probability	Impact	Mitigation
agentic-flow breaking changes	Medium	High	Pin version, maintain adapter layer
Performance regression	Low	High	Continuous benchmarking
Migration complexity	High	Medium	Automated tools, gradual rollout
Plugin system bugs	Medium	Medium	Extensive testing, beta program
Data migration failures	Low	Critical	Backup/restore, rollback plan

Project Risks

Risk	Probability	Impact	Mitigation
Scope creep	High	Medium	Strict prioritization, defer to v3.1
Resource shortage	Medium	High	Community involvement, phased delivery
Timeline slippage	Medium	Medium	Buffer time, cut scope if needed
Adoption resistance	Low	High	Clear benefits, migration support

Success Criteria

Functional

[ ] All v2 features in v3
[ ] Agent spawn/terminate/scale working
[ ] Task creation/execution/monitoring working
[ ] Memory store/retrieve/query working
[ ] Multi-agent coordination working
[ ] MCP tools fully functional
[ ] CLI commands fully functional

Performance

[ ] Agent spawn <100ms (vs 500ms in v2)
[ ] Task assignment <10ms (vs 50ms in v2)
[ ] Memory query <5ms indexed
[ ] CLI command response <200ms
[ ] Throughput 100+ tasks/minute

Quality

[ ] Test coverage >85%
[ ] Type coverage 100%
[ ] Zero any types
[ ] File size <500 lines average
[ ] Cyclomatic complexity <15

Adoption

[ ] Migration guide complete
[ ] 10+ beta testers successful
[ ] 3+ community plugins
[ ] 100+ GitHub stars
[ ] Positive community feedback

Appendices

Appendix A: Code Size Reduction Plan

Current v2:

Total: ~130,000 lines
CLI: ~30,000 lines
Core: ~25,000 lines
Agents: ~15,000 lines
Swarm: ~20,000 lines
MCP: ~10,000 lines
Specialized: ~30,000 lines

Target v3:

Total: ~78,000 lines (40% reduction)
Shared Kernel: ~5,000 lines
Infrastructure: ~8,000 lines
Agent Lifecycle: ~12,000 lines
Task Execution: ~12,000 lines
Memory Management: ~10,000 lines
Coordination: ~11,000 lines
Plugins (separate): ~20,000 lines

Reduction Strategies:

Eliminate duplicate code (4 coordination systems → 1)
Leverage agentic-flow (reduce orchestration code)
Decompose large files (index.ts 108KB → multiple small files)
Remove dead code
Plugin-ize optional features

Appendix B: Performance Benchmarking

Benchmark Suite:

typescript

// benchmarks/agent-spawn.bench.ts
import { bench, describe } from 'vitest';

describe('Agent Spawn Performance', () => {
  bench('spawn single agent', async () => {
    await agentService.spawnAgent(template);
  });

  bench('spawn 10 agents parallel', async () => {
    await Promise.all(
      Array(10).fill(null).map(() =>
        agentService.spawnAgent(template)
      )
    );
  });

  bench('spawn 100 agents parallel', async () => {
    // ...
  });
});

// Run benchmarks
npm run benchmark
npm run benchmark:compare -- --base=v2 --compare=v3

Target Performance:

Operation	v2	v3 Target	Improvement
Agent spawn	500ms	<100ms	5x
Task assign	50ms	<10ms	5x
Memory query (indexed)	25ms	<5ms	5x
Swarm init (10 agents)	5s	<1s	5x

Appendix C: Migration Tooling

Automated Migration Script:

bash

#!/bin/bash
# scripts/migrate-v2-to-v3.sh

# Backup v2 data
echo "Backing up v2 data..."
cp sptflo.db sptflo-v2-backup.db

# Migrate configuration
echo "Migrating configuration..."
node scripts/migrate-config.js

# Migrate database schema
echo "Migrating database..."
node scripts/migrate-database.js

# Validate migration
echo "Validating migration..."
node scripts/validate-migration.js

echo "Migration complete! Review logs at migration.log"

Migration Guide Template:

markdown

# Migrating from v2 to v3

## Overview
This guide helps you migrate your sptflo installation from v2 to v3.

## Prerequisites
- Node.js 20+
- Backup of v2 data
- v2.x running successfully

## Step 1: Backup
```bash
# Backup data
cp sptflo.db backup/
cp -r .claude/ backup/

Step 2: Install v3

bash

npm install sptflo@3.0.0

Step 3: Migrate Config

bash

npx sptflo migrate config

Step 4: Migrate Data

bash

npx sptflo migrate data

Step 5: Test

bash

npx sptflo test-migration

Step 6: Switch

bash

npx sptflo activate v3

Rollback

If issues occur:

bash

npx sptflo rollback v2


---

**Document Owner:** Architecture Team
**Last Updated:** 2026-01-03
**Next Review:** End of Phase 1 (Week 4)

---

**End of Migration Roadmap**

SPTFlo v3 Migration Roadmap ​

Table of Contents ​

Overview ​

Vision ​

Key Objectives ​

Scope ​

Principles ​

Phase Breakdown ​

Phase 1: Foundation (Weeks 1-4) ​

Phase 2: Core Domains (Weeks 5-12) ​

Phase 3: Plugin System (Weeks 13-16) ​

Phase 4: Integration & Release (Weeks 17-20) ​

Sprint Details ​

Sprint 1 (Week 1): Project Setup & Shared Kernel ​

Sprint 2 (Week 2): Infrastructure Layer ​

Sprint 3 (Week 3): Plugin System Core ​

Sprint 4 (Week 4): CI/CD & Documentation ​

Common Issues ​

Sprints 7-8 (Weeks 7-8): Task Execution Domain ​

Sprints 9-10 (Weeks 9-10): Memory Management Domain ​

Sprints 11-12 (Weeks 11-12): Coordination Engine ​

Team Structure ​

Core Team (2-3 developers) ​

Community Contributors ​

Risk Management ​

Technical Risks ​

Project Risks ​

Success Criteria ​

Functional ​

Performance ​

Quality ​

Adoption ​

Appendices ​

Appendix A: Code Size Reduction Plan ​

Appendix B: Performance Benchmarking ​

Appendix C: Migration Tooling ​

Step 2: Install v3 ​

Step 3: Migrate Config ​

Step 4: Migrate Data ​

Step 5: Test ​

Step 6: Switch ​

Rollback ​

SPTFlo v3 Migration Roadmap

Table of Contents

Overview

Vision

Key Objectives

Scope

Principles

Phase Breakdown

Phase 1: Foundation (Weeks 1-4)

Phase 2: Core Domains (Weeks 5-12)

Phase 3: Plugin System (Weeks 13-16)

Phase 4: Integration & Release (Weeks 17-20)

Sprint Details

Sprint 1 (Week 1): Project Setup & Shared Kernel

Sprint 2 (Week 2): Infrastructure Layer

Sprint 3 (Week 3): Plugin System Core

Sprint 4 (Week 4): CI/CD & Documentation

Common Issues

Sprints 7-8 (Weeks 7-8): Task Execution Domain

Sprints 9-10 (Weeks 9-10): Memory Management Domain

Sprints 11-12 (Weeks 11-12): Coordination Engine

Team Structure

Core Team (2-3 developers)

Community Contributors

Risk Management

Technical Risks

Project Risks

Success Criteria

Functional

Performance

Quality

Adoption

Appendices

Appendix A: Code Size Reduction Plan

Appendix B: Performance Benchmarking

Appendix C: Migration Tooling

Step 2: Install v3

Step 3: Migrate Config

Step 4: Migrate Data

Step 5: Test

Step 6: Switch

Rollback