Phase 1: Topologies & Roles · ~60 minutes · Python (stdlib)
Role Specialization — Planner, Critic, Executor, Verifier
The most common multi-agent decomposition in 2026: one agent plans, one executes, one critiques or verifies.
Hiring signal: Can operate role specialization in production
Introduction
MetaGPT (arXiv:2308.00352) formalizes this as SOPs encoded into role prompts — Product Manager, Architect, Project Manager, Engineer, QA Engineer — following Code = SOP(Team). ChatDev (arXiv:2307.07924) chains designer, programmer, reviewer, tester through a "chat chain" with "communicative dehallucination" (agents explicitly request missing details). The verifier is load-bearing: Cemri et al. (MAST, arXiv:2503.13657) show every multi-agent failure can be traced to missing or broken verification. PwC reported 7× accuracy gain (10% → 70%) from structured validation loops in CrewAI.
Type: Learn + Build Languages: Python (stdlib) Prerequisites: Phase 16 · 04 (Primitive Model), Phase 16 · 05 (Supervisor) Time: ~60 minutes
Objective
Learning objectives
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