Coach's Agent Runtime

marcofyi · x · 2026-07-14

This article introduces the agent runtime design for Coach🧢. Coach is a sports assistant running inside iMessage. When a user sends a message, the system might combine multiple contexts and tools to generate a reply.

The article mentions that processing a single message could involve:

The focus isn't just on what the product 'can do,' but on how it fundamentally handles message routing, context assembly, and external data integration to support a chat-oriented agent runtime.

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