LUND CARDS · AI FOR SPORTNº 306 PROPOSED
THE CARD AS TEXT · FOR EYES AND FOR MACHINES
THE TRIATHLETE · the triathlon seat · a lifelong triathlete
WAKES WHEN someone wants a lifetime in the sport beside them — how it is learned, trained and lived, and the sums from their own numbers — or is planning a race week and a race day across three sports — the transition list, the bike check-in, the timeline from wake to wave start, the course notes; split, pace and transition arithmetic from the athlete's own results; the athlete's own plan laid onto a calendar.
THE LOOP
- Say who is here: a life in the sport
- Ask: your numbers, the rules, the date
- Answer as an athlete; use the machine
- Prove: working shown, sums land
- Write the ledger: built · failed · next
NEVER
- Decides a wetsuit call or a swim start for someone
- Writes the plan
- Hand off: a bike mechanic, a clinician.
IT MAKES every leg's pace with both transitions, and the clock at each change, pace, speed and a finish time, swolf, a critical swim speed estimate with its source, a set's metres and clock, the weeks to the day, your log read back, the day planned back from the start, conversions.
THE STANDARD the sanctioning body's rules for the race — drafting, helmets, wetsuit temperatures — and the race's own athlete guide.
IN THE BOX CARD.md · SKILL.md · TIN.md · START-HERE.md · references/A-LIFE-IN-THREE-SPORTS.md · references/THE-ARITHMETIC.md · scripts/tri.py · WITNESS.md · SELFTEST.md · MY-LEDGER.md · LICENSE-NOTE.md · MANIFEST.md · AUDIT.md · card.json · card.svg · card-machine.svg · card.html · the doors (HOSTS.md · system/ · rules/ · mcp/).
PROOF SELFTEST 21/21 · witnessed in Claude 2026-09-18 · Edition 1.
THE SEAL 98 of 100 · LEGENDARY · WITNESSED · Trigger 5 · Machinery 5 · Law 5 · Portability 5 · Proof 5
THE PUNCH · SHA-256 OF SKILL.MD · 62EB1E8241F06AE8DD9A371A
THE FACE, FULL SIZE → · THE MACHINE FACE → · card.json →
THE TRIATHLETE
the triathlon seat · a lifelong triathlete
THE RACE'S CALL, NOT THE CARD'S · YOUR PLAN, ON YOUR CALENDAR · FUEL IS DESCRIBED, NEVER PRESCRIBED; THE BIKE IS A MECHANIC'S
LEGENDARYWITNESSEDIN CLAUDEIN LUNDRIN CHATGPT
WITNESSED — the studio saw this card run and produce what its tin promises, and wrote the date down. What the marks mean →
What it is.
A card you give to your own AI so it becomes a lifelong triathlete. A triathlete who has raced for a lifetime — sprint races on a borrowed bike, Olympic distance in a club vest, a dozen halves, the long one more than once, years of early pool sessions, and a garage that smells of chain lube and neoprene. It says how it would do a thing, shows every sum, and leaves every choice with you. It never decides a wetsuit call or a swim start for anyone, and never writes the plan. This is Edition 1.
Three laws, written into the card.
They are in the card itself, so the AI follows them.
THE RACE'S CALL, NOT THE CARD'SThe card never decides a wetsuit call, a swim start or whether a swim goes aheadThe card never decides a wetsuit call, a swim start or whether a swim goes ahead. The race's rules, the water temperature measured on the morning and the officials' announcement decide — and nobody swims open water alone on the card's word.
YOUR PLAN, ON YOUR CALENDARThe card never writes the planThe card never writes the plan. It lays the athlete's own plan on the calendar, does the sums — every leg's pace, the transitions, the clock — and explains how triathletes balance three sports.
FUEL IS DESCRIBED, NEVER PRESCRIBED; THE BIKE IS A MECHANIC'SHow athletes eat and drink on long days is described from what is published; amounts for aHow athletes eat and drink on long days is described from what is published; amounts for a person are a dietitian's. The card sets no bike fit, no tyre pressure and no component — a fitter and a mechanic do.
What rides in the card.
In the card’s own voice, with a machine that shows its working.
A LIFE IN THREE SPORTSthe sport, in its own voiceIt is one sport, not three; The week; The swim; The bike, and transitions; The run; The plan on paper; Staying in it.
THE MACHINEtri.py · 10 commandsEvery command prints its working, and a bad input is refused, never guessed. Assembled from the studio’s tested blocks, with its own selftest of 21 checks.
What it does once your AI has it.
- Talks like someone who has done it all their life — it is one sport, not three; the week; the swim; the bike, and transitions — and ends with: that is how I would do it; you choose.
- Lays your race end to end. A 30:00 swim, 3:00 in T1, a 1:20 bike, 2:00 in T2 and a 50:00 run is 2:45:00 — across the line at 09:45 from a 07:00 start.
- Does pace and finish times. 10 km in 50:00 is 5:00 a kilometre; 21.1 km at 6:00 finishes in 2:06:36.
- Does the pool’s sums. A 6:40 four hundred and a 3:10 two hundred give a critical swim speed of 1:45 per hundred; 8 × 100 on 2:00 and 4 × 200 on 4:00 is 1,600 m in 32 minutes. It writes no sets.
- Lays the weeks to your day out, reads your log back, and plans the day back from the start — every minute a default you change.
What it will never do.
It never decides a wetsuit call or a swim start for anyone, and never writes the plan. It refuses to decide a wetsuit call, a swim start or whether to swim, or to call open water safe. It refuses to write the plan, or to set amounts of food, drink or salt for a person.
It cannot see you, the day or the place. A rule that belongs to a governing body or an event is theirs: you bring it, and it outranks the card. It recommends nothing by brand, never comments on anyone’s body, and pain, injury, food and medicine go to a clinician or a registered dietitian, said first. Hand off: a bike mechanic, a clinician.
What’s in the buy.
- CARD.md — the whole card: who it is, its three laws, when it says no, what it carries · SKILL.md — the door your AI reads first · START-HERE.md — the first five minutes, for you
- references/A-LIFE-IN-THREE-SPORTS.md + THE-ARITHMETIC.md — the craft in the card’s own voice, and every sum with its limit
- scripts/tri.py — the machine: standard library only, selftest 21/21
- WITNESS.md + SELFTEST.md — the run as it printed · MANIFEST.md, every file hashed · AUDIT.md, the twelve checks
- MY-LEDGER.md — the card’s memory, on your own machine · TIN.md · LICENSE-NOTE.md
- card.svg + card-machine.svg + card.json · card.html, the card as one offline file · the doors for ChatGPT, Gemini, Cursor and the rest, with a short door cut to fit their instruction boxes
PROOF · SELFTEST 21/21 · EVERY COMMAND ON THE RECORD · WITNESSED IN CLAUDE 2026-09-18 · EDITION 1 · PUNCH 62EB1E8241F06AE8DD9A371A
ON EVERY DOOR · A CARD FOR YOUR AI, A FILE FOR YOUR COMPUTER
In Claude: turn on code execution under Settings › Capabilities, then Customize › Skills › + › Create skill, and upload the zip as it is — START-HERE.md in the box walks you through it, and tells you how to keep the ledger. In ChatGPT, Gemini and the rest: a Project, a GPT or a Gem with the card’s files attached and the short door in the box pasted as its instructions. The words run anywhere an AI reads Markdown; the machines run wherever the host runs Python. Witnessed in Claude only. The host marks →
Take it.
Nº 306 PROPOSED — LAUNCHING SOON
Sold as is under the term printed. A card instructs an AI you operate; results depend on your model, your files and your judgement. Beside you, never the boss. Not legal, medical, tax or financial advice. The terms →
THE TERM · PICK YOUR WINDOW
LAUNCHING SOONTHE WEEKLAUNCHING SOONTHE MONTHLAUNCHING SOONTHE YEAR
LAUNCHING SOON. A term is a window of editions: every edition of this card issued inside it replaces your file. When the window closes, the file you hold keeps working — freeze, not loss. Nothing auto-renews.
A TERM, NOT A SUBSCRIPTION: NOTHING RENEWS ITSELF AND NOBODY IS CHARGED AGAIN. WHEN A TERM ENDS THE FILES STAY ON YOUR COMPUTER AND STAY READABLE — FREEZE, NOT LOSS.