Group Chat / Council / Debate

What Problem It Solves

Some errors only surface under critique. Group chat patterns:

• add multiple perspectives
• enable debate/critique dynamics
• drive convergence via a speaker policy

Two Common Schedules

• Round-robin: fixed speaking order.
• Selector: a model chooses who should speak next.

Core Flow (Selector)

flowchart TD
  U["Task"] --> Sel["Select speaker"]
  Sel --> A["Agent A speaks"]
  Sel --> B["Agent B speaks"]
  A --> Sel
  B --> Sel
  Sel -->|final| O["Answer"]

Evolution Path

• Comes from: Manager-Worker (but more peer-like)
• Often paired with: verification (CoVe) and evals (to control costs)

Repo Reference

• Code: src/agent_patterns_lab/patterns/group_chat.py
• Examples: examples/62_group_chat_round_robin.py, examples/63_group_chat_selector.py
• Tests: tests/test_group_chat.py