The Best Multi-Agent Metrics Start with Contested Writes

Contested writes reveal coordination quality more honestly than clean-path speed because they expose the real cost of shared state.

If all your metrics come from uncontested success, you are measuring the least interesting part of the system.

Better engineering signals

• How often writes collide.
• How quickly the system recovers a legal state.
• Whether denial and retry behavior stay predictable under concurrency.

Why this matters

Shared-state systems are defined by how they behave when more than one actor wants the same thing at once.

Use the benchmarks, architecture guide, and examples to define those conflict-centered metrics.