The Put That Sh*t On Agent: Why AI Agents Need Contracts

Your agents can talk to each other and still give advice that makes no sense.

William Hill walks through PTSO, a personal outfit assistant built with Google ADK, MCP, and A2A. He shows how developers can check recommendations against weather, wardrobe data, and explicit rules. An ontology defines the facts, relationships, and constraints the application uses to check agent output. Follow an outfit recommendation from the initial request to the evidence behind it. Leave with a practical way to decide what belongs in prompts, code, and data.