Knight's Blog

Engineering writing from the people who deliver

Agent architecture, data plumbing, and the techniques we reach for on delivery. Longer and more technical than the field notes, and written to be useful whether or not you work with us.

Agent architectureAugust 30, 2026· 10 min read

Code mode: letting the model write code instead of calling tools

MCP made it easy to give an agent a hundred tools. Code mode is a slight correction: hand the model a typed API and let it write a program, so schemas and intermediate results stop flowing through the context window.

Ready to start building your AI workforce?

It only takes an hour, no fluff. Meet with a Nightshift engineer to get started.

Let’s chat