endurance-coach-external-positioninglisted
Install: claude install-skill maxeskell/personal-training-app
# Endurance Coach — external positioning
**Use this when** you are writing or reviewing anything the outside world reads about this project
(release note, blog, README pitch, changelog, talk, paper, comparison table) and you need to know what
is genuinely novel, what is standard practice dressed up, what must be proven before it can be claimed,
and where this app is deliberately *worse* than the competition.
**Don't use this when** you want the open research problems themselves (→ `endurance-coach-research-frontier`)
or the internal mechanics of when a finding counts as proven (→ `endurance-coach-research-methodology`).
This skill decides **what may be said publicly and the gate every claim clears first** — it consumes the
evidence bar those siblings define; it does not redefine it.
**One rule above all: no oversell.** The house voice is honest to a fault. Anything unproven ships
labelled `MODEL` / `estimate` / `candidate` / `exploratory`. If a claim would embarrass the maintainer
when a skeptic checks it, cut it or downgrade it. A wrong public claim is worse than a modest one.
Jargon, defined once:
- **AIE** — AI Endurance (https://aiendurance.com), the paid platform that is this app's data spine. Its
ML sets adaptive training volume, race-finish predictions, and a recovery model.
- **n=1** — statistics on a single athlete's own longitudinal data, rather than group averages.
- **CTL / ATL / TSB** — chronic / acute training load and training-stress balance (fitness / fa