---

name: specs-dev description: Plan-first development workflow with review gates. Use when implementing features, refactoring, or any task requiring structured planning, iterative implementation with reviews, and clean commits. Triggers on requests like "implement feature X", "plan and build", "spec-driven development", or when user wants disciplined, reviewed code changes.

Specs-Dev Workflow

A disciplined, review-gated development workflow ensuring quality through structured planning and iterative implementation.

When to Use

• Implementing new features
• Complex refactoring
• Any task requiring planning before coding
• When user requests "plan first" or "spec-driven" approach
• Multi-file changes that benefit from review gates

Workflow Overview

Phase 1: Discovery

Goal: Reach shared understanding before planning.

1. Interpret the request — state initial understanding
2. Ask clarifying questions (goals, constraints, success criteria, out-of-scope)
3. Iterate — reflect answers, tighten understanding
4. Summarize — present final requirements

Gate A: "Do I understand correctly? Should I proceed to create the plan?" — Wait for approval.

Phase 2: Planning

Goal: Create a comprehensive, reviewed implementation plan.

1. Draft plan using references/templates/plan.md
2. Review loop with reviewer (max 3 rounds) — see references/agents/reviewer.md
3. Integrate feedback, iterate until approved
4. Gate B: Present to user, wait for approval
5. Create session: .agents/sessions/{YYYY-MM-DD}-{feature-name}/
6. Save plan.md and tasks.md (use references/templates/)

Quality gates: see references/gates.md

Phase 3: Implementation

Goal: Implement tasks iteratively with approval-gated review loops.

⚠️ MANDATORY: You MUST follow references/loop.md — Read and execute the implementation loop exactly as specified. Do not skip or deviate from the defined state machine.

Summary: For each task:

CopyIMPLEMENTING → VALIDATING → REVIEWING → loop until approved → COMMITTING → DOCUMENTING → NEXT TASK

Required Steps:

1. Read references/loop.md before starting any implementation
2. Follow the state machine transitions exactly
3. Complete each state's requirements before transitioning
4. Max 3 iterations per task before escalating to user
5. Subagents: references/agents/worker.md, references/agents/reviewer.md

Quality gates: see references/gates.md

Phase 4: Completion

Goal: Final validation and wrap-up.

1. Run full test suite
2. Update plan.md with results, final status, known issues
3. Verify all tasks complete in tasks.md
4. Summarize completed work, risks, outcomes
5. Confirm with user — session ready for merge/release

Quality gates: see references/gates.md

Subagent Delegation

Reviewer — Plan reviews, code reviews:

CopyContext: references/agents/reviewer.md
Task: Review [plan/code] for completeness, security, performance, patterns

Worker — Focused implementation:

CopyContext: references/agents/worker.md
Task: Implement [objective] in [files] with [acceptance criteria]

Session Structure

Copy.agents/sessions/{YYYY-MM-DD}-{feature-name}/
├── plan.md      # Strategic plan
└── tasks.md     # Tactical tasks

References

Copyreferences/
├── loop.md          # Phase 3 state machine, steps, fix routing
├── gates.md         # Quality gates for all phases
├── help.md          # Common issues, best practices
├── agents/
│   ├── reviewer.md  # Reviewer subagent context
│   └── worker.md    # Worker subagent context
└── templates/
    ├── plan.md      # Plan document template
    └── tasks.md     # Tasks document template