Model Context Protocol (MCP)

Designing custom MCP servers to bridge backend applications with modern agentic AI tooling. The interesting part is not the protocol itself but what it forces: a backend has to describe its own capabilities precisely enough for a model to use them.

The pattern in practice: a small server exposes typed tools over stdio or HTTP, the agent composes them. Horizon runs on exactly this — market data behind an MCP server, analysis driven by whatever agent connects to it.

Open question: how much of Local-first infrastructure can be exposed the same way before the abstraction leaks.