Communication Protocols: Messages, Shared State, and Contracts

Agentic AI 18 min min read Updated: Feb 26, 2026 Intermediate

Communication Protocols: Messages, Shared State, and Contracts in Agentic AI

Intermediate Topic 3 of 8

Communication Protocols: Messages, Shared State, and Contracts

Why free-form chat fails

If agents talk in long natural language, the team becomes inconsistent and hard to debug. Use message contracts.

Message schema

Example:

{"task_id":"...","result":...,"confidence":0.82,"evidence":[]}

Shared state

Use a shared store (DB / memory service) for goals, progress, and artifacts. Don’t rely on chat history alone.

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