EVALUATION GATES
ARCHITECTURE PATTERNS
PRODUCTION
New Agent
Initiative
Control Requirements
High: Regulatory,
safety-critical
Moderate: Support,
content, analysis
Low: Research,
brainstorming
Domain Complexity
Single domain,
predictable
Multi-domain,
predictable
Complex,
open-ended
Resource Constraints
Limited budget →
Start simple
Time pressure →
Single agent first
Strategic →
Modular evolution
Pattern
Selection
Single Agent
One model + tools + skills
Sequential Workflow
Ordered chain → handoff
Parallel Workflow
Fan-out / fan-in
Hierarchical Multi-Agent
Supervisor + specialists
Evaluator-Optimizer
Generate → evaluate → refine
Hybrid Assessment
Combine patterns
for production
Deploy with Deterministic Guardrails
BPMN Process Model + Audit Trail + Three-Return Contract
← Simpler, Cheaper, Faster More Capable, Higher Token Cost →