tagged · 4 articles

mcp

2026

What your evals never read
Your eval suite scores the function. It never reads the sentence the model reads before deciding to call that function, and that sentence is the one that can lie, be tampered with after you ship, or be obeyed differently on the very next run. First in a series on what agent evals actually have to measure.
Aug 6, 2026
2026

mcp 1.x to 2.0: reference notes
Every breaking change in the Python MCP SDK's 2.0, what it looks like when it bites you, and what to do about it. Then why the protocol changed the way it did. Measured against installed 1.26.0 and 2.0.0 wheels.
Jul 29, 2026
2026

The first file an agent reads
Coding agents read your library before they use it, and they start with the code — `__init__.py`, the type hints, the tool schemas — not your docs site. Here is how I made waitbus speak to that reader, and the one piece of documentation I deliberately did not ship.
Jun 19, 2026
2026

How waitbus works: from event source to a waiting agent, over MCP
The architecture end to end — how an event gets from a source to a waiting agent in single-digit milliseconds, how an agent actually talks to the bus over MCP, and the decisions behind the build with what each one cost.
Jun 14, 2026