My AI harness is an external executive function

I built an AI setup to save money on tokens. It turned into the memory and focus my ADHD brain is missing. TL;DR: A messy AI agent wastes money. A messy ADHD brain wastes effort. The same thing fixes both: external structure. I built it for the agent, then I saw I had built it for myself. Context An "agent harness" is the plain layer around an AI coding agent. Mine has four parts: a CLAUDE.md: a file of rules the agent reads every time it starts skills: fixed step-by-step routines for tasks I do often routing and delegation: rules for which model does what, and when to hand a job to a helper agent file-based memory: notes the agent writes to disk, so it remembers things between sessions People build this to save money and keep quality steady. An agent with no structure wastes tokens and drifts off task. Structure makes it cheap and steady. That is the whole point of it. Why these two things match Here is the part that surprised me. An AI agent wastes mo