01 / Field notes
Writing from the middle of shipping.
Notes from building AI systems that actually run. n8n agents, Claude Code, Codex CLI, retrieval, evals, the parts nobody writes tweets about.
n8n · AI agents
n8n AI agents in production, what actually breaks
Everyone can wire an OpenAI node to a webhook. Very few can keep it running for six months. Here is what falls over first, and how to build so it doesn't.
·9 min read
Claude Code · Cursor
Claude Code vs Cursor, what one does that the other can't
Six months of building production apps with both. Where Claude Code wins, where Cursor still wins, and the workflow I actually use day to day.
·10 min read
Codex CLI · OpenAI
OpenAI Codex CLI, a real operator's guide
Codex CLI is not another shell wrapper. It is an agent that edits your repo. Here is how to install it, wire it into a real workflow, and not let it wreck main.
·11 min read