Formal Verification and Chaos Testing for Multi-Agent Systems with Dafny

andreisavu · x · 2026-09-22

The author shares engineering practices for guaranteeing correctness in a multi-agent system (shared room/journal model):

Dafny formal proofs: pure rules of the room and journal are proven in Dafny, with CI checking every rule on every change
Chaos suite: kills writes mid-write and hands a room to a new host across 200 seeds; the full sweep runs on demand, a smaller one on every check
Traceability: every message names the artifact it changed, and every artifact change names the agent response that caused it — reachable from either end

A useful auditable-architecture reference for teams building agent orchestration and multi-agent consistency.

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