Writing

Notes from building Executor.

August 9, 2026We're not using enough inferenceWe're going to look back on the amount of inference we used in 2026 as laughably small. Some exploratory thinking about what a world of free, abundant attention looks like.
June 27, 2026I don't want to use your agentI want to use the skills, knowledge, and APIs your company has spent years developing, not your custom agent. How to enable power users without abandoning everyone else.
June 26, 2026MCPs, APIs, and CLIs are not three separate conceptsThey are all ways to invoke tools, that's it. How I think about tool calling, the different specifications, when to use each, and the underlying concepts.
June 25, 2026Why MCP had so many growing painsMCP shipped before anyone knew how to wire tools to agents, and it caught the blame for it. What actually went wrong, why CLIs aren't the answer, and where MCP goes from here.