MCP Server Engineering

Watch an agent fail against a raw mock API, then see the six-stage build that turns any internal API into one an agent can trust.

Build a working stdio server around a real API and connect it to your coding agent in under 25 minutes.

Turn a working tool surface into one an agent stops misusing, with a written spec and evals to prove it.

Resource metadata, PKCE, and token validation done the way the current MCP spec actually requires, not the way a tutorial from last year shows it.

Give every agent call a name, a scope, and a trail, so who told the agent to do that has a one-line answer.

Move the server off your laptop and onto infrastructure that scales, under the stateless deployment model the spec adopted in July 2026.

A three-layer test pyramid, from tool-handler unit tests to real agents proving they call the right tool.

Ship a breaking change to a tool surface without breaking every agent mid-task, using a registry entry and a deprecation clock.