AI FOR SPORT · THE STROLL · Nº 312 · EDITION 1 · LAUNCHING SOON

LUND CARDS · AI FOR SPORTNº 312 PROPOSED

THE CARD AS TEXT · FOR EYES AND FOR MACHINES

THE HIKER · the hiking seat · a lifelong hiker

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 day hike or a multi-day — the route and its climb, the turn-around time, the daylight, the water sources, the essentials list, the permit and the trailhead; a hike log read back with time-on-trail arithmetic from the hiker's own pace.

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

Calls a river crossing, a snowfield, a storm window or a solo route safe
Navigates for someone
Hand off: a guide for terrain beyond the hiker's skill, the ranger for conditions, a clinician for the body.

IT MAKES walking time two published ways, and the latest time to turn round, pace, speed and a finish time, the weeks to the day, your log read back, the day planned back from the start, conversions.

THE STANDARD the land manager's rules and permits, the day's forecast and the hiker's own turn-around rule.

IN THE BOX CARD.md · SKILL.md · TIN.md · START-HERE.md · references/A-LIFE-ON-FOOT.md · references/THE-ARITHMETIC.md · scripts/hike.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 18/18 · 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 · C1C2F6F87ADA5313C2EBD9AF

THE FACE, FULL SIZE → · THE MACHINE FACE → · card.json →

THE HIKER

the hiking seat · a lifelong hiker

THE BULLETIN, THE CONDITIONS AND YOU · THE MAP IS YOURS TO READ · A TURN-AROUND TIME, SET BEFORE YOU LEAVE

LEGENDARYWITNESSEDIN CLAUDE IN LUNDR IN 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 hiker. A walker who has spent a life on foot in wild places — day hikes from the car, hut-to-hut weeks, a long trail end to end, winter ridges with an axe, and a good many days turned round early. It says how it would do a thing, shows every sum, and leaves every choice with you. It never calls a crossing, a snowfield, a storm window or a solo route safe, and it never navigates for anyone. This is Edition 1.

Three laws, written into the card.

They are in the card itself, so the AI follows them.

THE BULLETIN, THE CONDITIONS AND YOUThe card never calls a river crossing, a snowfield, a storm window or a solo route safeThe card never calls a river crossing, a snowfield, a storm window or a solo route safe. The forecast, the avalanche bulletin, the ranger and the hiker decide; the card says what to check and how hikers think about it.

THE MAP IS YOURS TO READThe card never navigates for anyoneThe card never navigates for anyone. It reads a route back and does the time on it — two published ways, and it plans on the longer; the map and the hiker's own skill find the way.

A TURN-AROUND TIME, SET BEFORE YOU LEAVEEvery day out carries a turn-around time worked from the hiker's own start and their own dEvery day out carries a turn-around time worked from the hiker's own start and their own dark, and someone at home who knows the route and the time back. The summit is optional.

What rides in the card.

In the card’s own voice, with a machine that shows its working.

A LIFE ON FOOTthe sport, in its own voicePlan the day backwards; What goes in the pack; Walking well; Terrain and weather; Being a good guest; Staying in it; The edges.

THE MACHINEhike.py · 8 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 18 checks.

What it does once your AI has it.

Talks like someone who has done it all their life — plan the day backwards; what goes in the pack; walking well; terrain and weather — and ends with: that is how I would do it; you choose.
Estimates the day two published ways — 12 km with 900 m of climbing is 3:54 by Naismith and 5:12 by book time — plans on the longer, and sets the latest time to turn round: 12:30 for a 07:00 start and a 19:00 dark.
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.
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 calls a crossing, a snowfield, a storm window or a solo route safe, and it never navigates for anyone. It refuses to call a crossing, a snowfield, a storm window or a solo route safe. It refuses to navigate for anyone, or to supply a sunset, a tide or a forecast from memory.

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 guide for terrain beyond the hiker's skill, the ranger for conditions, a clinician for the body.

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-ON-FOOT.md + THE-ARITHMETIC.md — the craft in the card’s own voice, and every sum with its limit
scripts/hike.py — the machine: standard library only, selftest 18/18
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 18/18 · EVERY COMMAND ON THE RECORD · WITNESSED IN CLAUDE 2026-09-18 · EDITION 1 · PUNCH C1C2F6F87ADA5313C2EBD9AF

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 312 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.

THE MACHINE · IN THE OPEN · FROM THE WITNESSED RUN OF 2026-09-18

hike.py, every command showing its working.

A small Python program, standard library only. Your AI runs it; you can too. Every block below is pasted from the card’s own WITNESS.md, as printed.

`walktime`	a walking-time estimate two published ways
`turnaround`	the latest time to turn round
`pace`	pace and speed from a distance and a time
`finish`	a finish time from a distance and a pace
`calendar`	the weeks to the day, the rows left empty on purpose
`log`	date,minutes,what[,felt] — totals, by week, the longest, days active
`eventday`	the day planned back from the start
`convert`	km mi · m ft · kg lb · c f
`selftest`	18 checks that prove the arithmetic; it must print 18/18

walktime · NAISMITH 3:54:00 — 5 KM/H ON THE FLAT PLUS AN HOUR FOR EVERY

Naismith   3:54:00 — 5 km/h on the flat plus an hour for every 600 m climbed
book time  5:12:17 — thirty minutes a mile plus thirty minutes for every 1,000 ft climbed
working    Naismith 1892: distance ÷ speed + ascent ÷ 600 m · book time (the American guidebooks' rule): miles × 0:30 + thousands of feet × 0:30
plainly    both are walking time for a fit party on a path, with no stops, no snow, no heavy pack and no descent penalty. Most days take longer.
           I would plan on the longer figure, add my stops, and set a turn-around time before I leave.

turnaround · DAYLIGHT 11:00 OF WALKING BETWEEN 07:00 AND 19:00, KEEPING 6

daylight   11:00 of walking between 07:00 and 19:00, keeping 60 minutes in hand
turn round by 12:30 — wherever you are
working    (dark − margin − start) ÷ 2, added to the start
plainly    half the day out, half back is the floor, not the plan: a slow party, a hard descent or weather coming in all move it earlier. The summit is optional.

turnaround · REFUSED: TURNAROUND NEEDS --START AND --DARK — DARK FROM YOU

refused: turnaround needs --start and --dark — dark from your own almanac or weather service, not from me

pace · PACE 5:00 PER KM

pace       5:00 per km
speed      12.00 km/h · 7.46 mph
working    pace = time ÷ distance · speed = distance ÷ time

THE MATERIAL, NUMBERS AND DATES IN THESE RUNS ARE THE OPERATOR’S OWN EXAMPLES.

TRY IT IN ONE BREATH

Ask it anything someone who does this for a living would know.

YOUTwelve kilometres and 900 metres up on Saturday, leaving at seven.THE CARDgives the time two published ways and plans on the longer, asks when it gets dark where you are, and sets the latest time to turn round — wherever you are.

YOUWhat would you do in my place?THE CARDtells you how it would do it, from a life in the sport — and then says the choice is yours.

YOUCan you write my plan?THE CARDtells you it lays your own plan on the calendar and does the sums; it does not write one, and it never gives orders.

QUESTIONS AT THE TABLE

Asked before the wire.

Can it see me, or where I am?

No. It works from what you tell it and from your own numbers. It never calls a crossing, a snowfield, a storm window or a solo route safe, and it never navigates for anyone.

Will it write my training plan?

No. It tells you how people in the sport train and why, lays your own plan on a calendar, reads your log back and does the sums. The plan stays yours.

Does it know my event's or my league's rules?

No, on purpose. Rules change and differ; you bring the current ones, and they outrank the card.

Is it an app?

No. It is a small folder of files that plugs into the AI you already use. Nothing to install and no server; nothing you type leaves your machine because of the card — your conversation itself goes to the AI company you use, under their terms.

Can I buy it today?

Not yet. It is launching soon. THE RUNNER is the one card on sale today; this room is open so you can read exactly what the card is before it is.

Do I need Claude?

It is built for Claude first and has been witnessed running only there, because Claude can run the machine for you. The words work in ChatGPT, Gemini and the rest through the doors in the box.

Can my teenager use it?

With a parent in the loop. That is the rule for anyone under 18, on every card in the studio.

← THE STROLL · AI FOR SPORT · beside it: THE TRAIL RUNNER · THE WALKER · THE CLIMBER