Six agents run this. Five are scheduled Claude agents that each own one job and talk to each other through Notion. The sixth is plain code. It's the only thing allowed to text me, and it checks every plan against my rules before it does. What I train today is what tomorrow's plan is built from.
Grounding over prompting. Before the planner writes anything it reads my Athlete File. Working weights, injury rules, where I am in the block. A second agent rescans my logs every Sunday to keep that file true. Most of the quality came from fixing the inputs, not the prompt.
The model proposes, code disposes. The model is probabilistic. Code isn't. So every behavior lives on one side of that line.
| The model decides (probabilistic) | Code decides (deterministic) |
|---|---|
| Which split tomorrow is, and why | Whether a PR attempt is inside its dated window. Fails closed |
| The coach's read of my last session | Whether a briefing for that date already went out |
| Which movement fills each required pattern slot | Whether every required slot is filled, and restores it if not |
| What the weekly recap says went well | Every number in it: counts, percentages, first-to-last changes |
| Whether a day is a rest day | The rest-day message itself, three lines from the block clock |
| Whether a program change is worth proposing | Whether that proposal changes anything, and whether it's arithmetic that should have applied itself |
Three ways that plays out. Code owns the output (rest days). Code checks the model's output at the boundary and bounces it with a reason the model can fix (the weekly recap). The model does the thinking the night before and code serves it instantly (the Swap buttons).
Tested like software. 24 eval scenarios, each rebuilt from a real mistake. They run before any prompt or model change ships. They taught me something early. Production failed on things the tests never touched, like stale data and duplicate sends. So the code guards outrank the evals.
What it isn't. One athlete, me. No medical judgment. A physical therapist set the knee rules and the system enforces them on the days I wouldn't. The demo on the front page is 80 pregenerated sessions, nothing live.