Agent skill
bb80-parallel-agents-seanchatmangpt-ggen-2
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/bb80-parallel-agents-seanchatmangpt-ggen-2
SKILL.md
EPIC 9: Parallel Agents Skill (80/20 Edition)
Auto-trigger: parallel, agents, collision, convergence, EPIC 9, bb80-parallel
Core Concept
EPIC 9 = 2.8-4.4x speedup via 10 parallel agents:
1. FAN-OUT → 2. INDEPENDENT CONSTRUCTION → 3. COLLISION DETECTION
→ 4. CONVERGENCE → 5. REFACTORING → 6. CLOSURE
When to Use
Use EPIC 9 (default for non-trivial): Implementation, architecture, debugging, optimization
Skip EPIC 9 (trivial): Read single file, run single command, display help
Fan-Out Pattern
// Single message, ALL agents (CRITICAL)
Task("Agent-1", "[FULL SPEC] Work independently. NO coordination.", "coder")
Task("Agent-2", "[FULL SPEC] Work independently. NO coordination.", "coder")
// ... Task("Agent-10")
Collision Detection
| Collision % | Status | Action |
|---|---|---|
| 90-100% | 🟢 GREEN | Use any output (identical) |
| 60-89% | 🟢 GREEN | Use majority |
| 30-59% | 🟡 YELLOW | Analyze trade-offs |
| <30% | 🔴 RED | Spec incomplete |
ggen sync Integration (Key Insight)
Spec (TTL) → 10 agents run ggen sync → All outputs identical → Perfect collision
Why: Deterministic generation = true parallelism without coordination.
Convergence (Selection Pressure)
- Invariants satisfied? (gate)
- SLOs met? (gate)
- Coverage ≥80%?
- Lowest complexity?
- Best performance?
NOT voting - objective criteria select best.
Commands
/speckit-verify [feature] # MANDATORY first
/bb80-parallel "[spec]" # Orchestrate cycle
/collision-detect # Analyze overlaps
/convergence # Synthesize result
Failure Recovery
| Failure | Cause | Action |
|---|---|---|
| Zero collision | Spec ambiguous | Return to /speckit-verify |
| Agents coordinating | Independence violated | Restart with "NO coordination" |
| All agents fail | Spec bug | Fix spec, re-run |
Quick Reference
Prerequisites: /speckit-verify = 100%
Fan-out: 10 agents, same spec, single message
Construction: Parallel, NO coordination
Collision: ≥60% = confident
Convergence: Selection pressure, not voting
Closure: Receipts collected
Constitutional Equation: EPIC 9 = Spec₁₀₀% × (Agent₁...₁₀)ᵖᵃʳᵃˡˡᵉˡ × Collision × Convergence
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