specs.md vs BMAD-Method
Compare specs.md with BMAD's multi-agent framework
Overview
Both specs.md (AI-DLC) and BMAD-Method target complex systems and enterprise-scale development. The key difference is their approach to agent organization.
BMAD-Method uses 19+ role-based agents that simulate a full development team (Analyst, PM, Architect, Developer, QA, etc.).
specs.md (AI-DLC) uses 3 phase-based agents aligned to AI-DLC’s methodology (Inception, Construction, Operations).
Side-by-Side Comparison
| Aspect | specs.md | BMAD |
|---|---|---|
| Target Complexity | Complex systems (same tier) | Complex/Enterprise systems (same tier) |
| Origin | AWS formal methodology | Community-driven framework |
| Agent Philosophy | 3 phase-based agents | 19+ role-based agents |
| Agents | Master, Inception, Construction, Operations | Analyst, PM, Architect, Dev, QA, UX, etc. |
| Methodology | AI-DLC (AWS standard) | Agentic Agile (open source) |
| Design Technique | DDD integrated as core | Optional, team choice |
| Rituals | Mob Elaboration, Mob Construction (collocated) | Agent handoffs (async) |
| Iteration | Bolts (“hours or days”) | Epics/Stories |
| Complexity | Moderate | High |
| Customization | Skills + Templates | Full persona customization via YAML |
| Community | Just born (December 2025) | 26k+ GitHub stars |
| VS Code Extension | Yes (visual dashboard) | No |
When to Choose Each
Choose specs.md (AI-DLC) if:
- You want a formal AWS methodology
- You prefer fewer, phase-aligned agents
- You want DDD as an integral part (not optional)
- You value collocated Mob rituals
- You want to avoid managing 19 agents
- You want a VS Code extension to track progress visually
Choose BMAD if:
- You want maximum agent customization
- You prefer role-based agent simulation
- You’re comfortable with higher complexity
- You want 19+ specialized personas
- You prefer async agent handoffs
- You have time to invest in learning
Key Differences
1. Agent Organization
BMAD: Focuses on traditional Agile roles—19+ agents mimicking a full development team with familiar titles.
Analyst Agent → PM Agent → Architect Agent →
Product Owner Agent → Scrum Master Agent →
Developer Agent → QA Agent → ...specs.md (AI-DLC): Focuses on AI development lifecycle phases with shorter iterations (Bolts, not sprints). 3 agents aligned to process phases.
Inception Agent → Construction Agent → Operations Agent2. Methodology Foundation
BMAD: “Breakthrough Method for Agile AI-Driven Development” - an open source framework built on agile principles with AI agents replacing human roles.
specs.md: AWS’s formally defined AI-DLC methodology with specific phases, rituals, and artifacts documented in a whitepaper.
3. Design Technique Integration
BMAD: Design techniques are optional. Teams can choose their own approach.
specs.md: DDD is integrated as core. AI applies domain-driven design principles during decomposition—it’s not optional.
4. Rituals and Collaboration
BMAD: Agents hand off documents to each other asynchronously.
specs.md: Mob Elaboration and Mob Construction are collocated rituals where teams work together with AI in real-time.
Agent Mapping
If you’re familiar with BMAD agents, here’s how they map to AI-DLC:
| BMAD Agents | specs.md Phase |
|---|---|
| Analyst, PM | Inception Agent - requirements elaboration |
| Architect | Inception Agent + Construction Agent - domain modeling |
| Product Owner, Scrum Master | Master Agent - orchestration |
| Developer, QA | Construction Agent - code generation, testing |
| DevOps | Operations Agent - deployment |
Complexity vs Control Trade-off
Migration Path
If you’re currently using BMAD and want to try AI-DLC:
Map Your Agents
Understand how your 19 agents map to 3 AI-DLC phases
Adopt Mob Rituals
Replace async handoffs with collocated Mob Elaboration and Mob Construction
Integrate DDD
Move from optional design techniques to DDD as core
Use Phase-Based Thinking
Organize work by phase (Inception → Construction → Operations) rather than role
Summary
| For This Need | Use This |
|---|---|
| Formal AWS methodology | specs.md |
| Maximum agent customization | BMAD |
| Simpler mental model (3 agents) | specs.md |
| Role-based simulation (19+ agents) | BMAD |
| DDD as core requirement | specs.md |
| Collocated Mob rituals | specs.md |
| Async agent handoffs | BMAD |