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THE INSTRUMENTS · Nº 786 · EDITION 1 · METHOD + MACHINE

LUND CARDS · THE INSTRUMENTSNº 786 PROPOSED
THE DATASHEET CARD — the LSC-1 face
THE CARD AS TEXT · FOR EYES AND FOR MACHINES

THE DATASHEET CARD · the data seat · know a dataset before an AI learns from it

WAKES WHEN a dataset going into an AI, a model, a bot's knowledge or an analysis; a CSV someone sent; training or fine-tuning data; data with people in it

THE LOOP

  1. NAME — say: "This is THE DATASHEET CARD." Ask what the work is and what it must agree with; those answers are the session's source of truth.
  2. PROFILE — `python3 scripts/datasheet.py profile DATA.csv`.
  3. SHEET — `python3 scripts/datasheet.py sheet DATA.csv --out DATASHEET.md`.
  4. ANSWER — a person answers the questions in DATASHEET.md.
  5. DECIDE — private columns removed, masked or kept with a written reason; then use.
  6. LEDGER — write the ledger line.

NEVER

  • private columns used without a reason
  • a dataset used with its questions blank
  • examples shown from private columns

THE SEAL 68 of 100 · EPIC · WITNESSED · MACHINE ABOARD · SELFTEST 5/5 · 10 TESTS · WITNESSED ON REAL WORK

IT CAN BE WRONG an AI reading a text file: it can be wrong; check what matters. THE-CLAUSES.md rides in the packet and is part of the licence.

THE PUNCH · SHA-256 OF SKILL.MD · 6893FED1605140A37ABD5EF2

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

THE DATASHEET CARD

the data seat · know a dataset before an AI learns from it

PROFILE IT · FLAG THE PRIVATE COLUMNS · ASK WHAT ONLY A PERSON KNOWS

68EPICWITNESSEDIN 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 →

THE SPEC SHEET · READ BEFORE YOU BUY · THE STANDARD EVERY CARD MEETS →

SEAL
68 of 100 · EPIC · WITNESSED
EDITION
E1
MACHINE
scripts/ · 1 command · selftest 5/5
RUNS
On your own computer. Standard library only, offline; no account, no key, no telemetry.
HOSTS
Claude · Claude Code · ChatGPT · Gemini · any AI that reads a file (HOSTS.md names each door)
LICENCE
One person, any number of their own AIs and computers · editions replace files · nothing renews · freeze, not loss
PUNCH
6893FED1605140A37ABD5EF2 · sha-256 of SKILL.md · check any file against it →

CITE THIS CARDTHE DATASHEET CARD, Edition 1. Lund Studio LLC, Westminster, Colorado. https://lundr.tech/?view=datasheet-card. Punch 6893FED1605140A37ABD5EF2. Retrieved 2026-10-10.

What it is.

A seat that profiles a dataset before an AI learns from it or answers from it — what is in it, what is private, what is broken — and asks what only a person can answer.

Counts rows and columns, guesses each column's type, counts blanks, distinct values and duplicates, flags private-looking columns, and writes a datasheet with the human questions.

Its laws, written into the card.

  • Profile every dataset before it is used: what is in it, what is missing, what repeats.
  • Private-looking columns are flagged and never shown as examples; each needs a reason to stay, or is removed or masked.
  • Four questions are answered by a person before use: where it came from, whether the people in it agreed, what it is for and must never be for, and who is missing from it.
  • The datasheet travels with the dataset.

How it works, once your AI has it.

  1. NAME — say: "This is THE DATASHEET CARD." Ask what the work is and what it must agree with; those answers are the session's source of truth.
  2. PROFILE — `python3 scripts/datasheet.py profile DATA.csv`.
  3. SHEET — `python3 scripts/datasheet.py sheet DATA.csv --out DATASHEET.md`.
  4. ANSWER — a person answers the questions in DATASHEET.md.
  5. DECIDE — private columns removed, masked or kept with a written reason; then use.
  6. LEDGER — write the ledger line.

When it says no.

  • Private columns used without a reason.
  • A dataset used with its questions blank.
  • Examples shown from private columns.

What’s in the buy.

  • CARD.md — the whole card · SKILL.md — the door your AI reads first · START-HERE.md — the first five minutes
  • AUDIT.md · CARD.md · HOSTS.md · LICENSE-NOTE.md · MANIFEST.md · MY-LEDGER.md · SKILL.md · START-HERE.md · THE-CLAUSES.md · TIN.md · WITNESS.md · card-machine.svg · card.html · card.json · card.svg · references/THE-METHOD.md · scripts/datasheet.py · tests/EVALS.md · tests/evals.json · system/short-prompt.md · system/system-prompt.md — the packet as the cards chat cut it
  • MY-LEDGER.md · TIN.md · LICENSE-NOTE.md · THE-CLAUSES.md · card.svg + card-machine.svg + card.json · card.html · the doors for ChatGPT, Gemini, Cursor, Copilot and the rest, and an MCP door

PROOF · MACHINE ABOARD · SELFTEST 5/5 · 10 TESTS · WITNESSED ON REAL WORK · AUDIT 12/12 · EDITION 1 · PUNCH 6893FED1605140A37ABD5EF2

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 786 PROPOSED · ONE PAYMENT

Sold as is under the term printed. A card instructs an AI you operate; results depend on your model, your files and your judgement. Not legal, tax, medical or financial advice. The terms →

ONE PAYMENT · NOTHING RENEWS ITSELF

OFFLINE · ONE LICENCE · PUNCH-CHECKABLE · THE STANDARD

One payment. The file is yours to keep and keeps working at its edition; new editions issued in the year after you buy reach you by email as replacement files. Tax is added at checkout where it applies. Nothing auto-renews.

One email when it is on sale, from the studio; nothing else, ever.

ONE PAYMENT — NOTHING RENEWS ITSELF. CHECKOUT IS SHOPIFY’S OWN; YOUR CARD COMES BY EMAIL AFTER IT.

← THE INSTRUMENTS · THE FLOOR →

IT MEASURES WHAT IS IN THE FILE. WHERE IT CAME FROM, WHETHER PEOPLE AGREED, AND WHAT IT MUST NEVER BE USED FOR ARE QUESTIONS ONLY A PERSON CAN ANSWER — THE DATASHEET LEAVES THEM AS QUESTIONS UNTIL SOMEONE DOES. · NOT A PAYMENT CARD · © 2026 LUND STUDIO LLC

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