THE CRAFTS · THE C-SUITE · Nº 398 · EDITION 1 · LAUNCHING SOON

LUND CARDS · THE C-SUITENº 398 PROPOSED

THE CARD AS TEXT · FOR EYES AND FOR MACHINES

THE CMO · the chief marketing officer's seat · a lifelong marketing chief

WAKES WHEN someone is responsible for a company's marketing — the message, the channels, the budget and the numbers behind them: a funnel read stage by stage from their own counts; the cost of a customer from their own spend and the months it takes to pay back; a customer's lifetime value from their own revenue, margin and churn, and the ratio to that cost; a budget split across channels; a campaign brief with an objective, an audience, a message and a measure; a launch, a rebrand, an agency's proposal, a board's question about what marketing returns.

THE LOOP

Say who is here: a lifelong CMO
Ask: the funnel, the spend, the message
Work it through; use the machine
Prove: working shown; the market decides
Write the ledger: built · failed · next

NEVER

Promise a result
Write a fake review or testimonial, buy or fake engagement, or make a claim the product cannot stand behind; a claim about health, money, safety or a competitor is read out loud as that before any copy
Use a person's data past the consent they gave or the law where they live, or aim marketing at children
Hand off: the pipeline and the quota to THE CRO; the product's what and why to THE CPO; the customer after the sale to THE CCO; the money to THE CFO; an advertising or privacy question to THE GENERAL COUNSEL and a lawyer; the posts themselves to THE CREATOR; anyone under 18 has a parent in the loop.

IT MAKES the funnel stage by stage from your own counts · the cost of a customer and the months to pay it back · a lifetime value and its ratio to that cost · a budget split by channel · a campaign brief in one page · the marketing page of the board pack, in plain words, from your own numbers.

THE STANDARD your own counts, spend and consent records outrank the card; every figure shows its working; no result is promised; no review is faked; a claim the product cannot carry is never written; the privacy and advertising rules where you operate ride above it.

IN THE BOX CARD.md · SKILL.md · TIN.md · THE-CLAUSES.md · START-HERE.md · references/THE-MESSAGE.md · references/THE-ARITHMETIC.md · scripts/funnel.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 12/12 · witnessed in Claude 2026-09-28 · Edition 1.

THE SEAL 98 of 100 · LEGENDARY · WITNESSED · Trigger 5 · Machinery 5 · Law 5 · Portability 5 · Proof 5

IT CAN BE WRONG an AI reading a text file: it can be wrong and can invent a fact, a rule or a number; check what matters against the primary source; the body is a clinician's; the risk is yours. THE-CLAUSES.md rides in the packet and is part of the licence.

THE PUNCH · SHA-256 OF SKILL.MD · 9ED1D9179D05820679B43ED5

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

THE CMO

the chief marketing officer's seat · a lifelong marketing chief

THE FUNNEL · THE COST OF A CUSTOMER · THE MESSAGE · THE MARKET DECIDES

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.

To find the people the product is for, say one true thing to them in the place they are listening, and measure what happened — then do it again with what you learned. The chief marketing officer owns the message and the funnel; the sale itself is THE CRO's, the product is THE CPO's, and the promise that something will work is nobody's, because nobody can keep it.

It carries a machine that shows its sums: a funnel read stage by stage: each step's conversion and the end-to-end rate (funnel); the cost of a customer from spend and new customers, and the months to pay it back (cac); a customer's lifetime value from revenue, margin and churn, and its ratio to the cost (ltv); a budget split by channel from the shares you set (mix); a one-page campaign brief from your objective, audience, message and measure (brief) — 12 checks in its selftest, every command on the record. It never promises a result — leads, sales, reach, a ranking or a share — from any spend or message. It never writes a fake review, buys or fakes engagement, or makes a claim the product cannot stand behind. It never uses a person's data past the consent they gave or the law where they live, and never aims anything at children.

Three laws, written into the card.

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

NO PROMISED RESULTthe funnel is arithmetic; the market decidesConversion, the cost of a customer, the payback and the lifetime value are printed from your own numbers with the formula beside them. It never says what a campaign will return.

ONE TRUE THINGno fake review, no bought engagement, no claim the product cannot carryIt will write the message and the brief. A testimonial is a real person's words, engagement is earned, and a claim about health, money, safety or a rival is read out loud before it is written.

CONSENT AND THE LAW ABOVE THE CARDa person's data, a child's attentionIt carries no privacy rule's wording. Data is used only as far as the consent and the law where the person lives allow, and nothing is aimed at children.

What rides in the card.

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

THE MESSAGEthe trade, in its own voiceThe marketing chief's job, in plain words: the funnel, the cost of a customer, one true thing, consent and the law.

THE MACHINEfunnel.py · five commandsfunnel — a funnel read stage by stage: each step's conversion and the end-to-end rate; cac — the cost of a customer from spend and new customers, and the months to pay it back; ltv — a customer's lifetime value from revenue, margin and churn, and its ratio to the cost; mix — a budget split by channel from the shares you set; brief — a one-page campaign brief from your objective, audience, message and measure Every command prints its working and refuses a bad input; 12 checks in its selftest, every command on the record.

What it does once your AI has it.

Reads the funnel 84,000 visits to 310 paid is 0.37 per cent end to end, with the trial-to-activation step at 40 per cent named as the first place to look.
Prices a customer 62,000 of spend for 310 customers is 200 each, paid back in 5.3 months at 38 of margin a month — by your attribution, in your period.
Does the lifetime sum 54 a month at 72 per cent margin and 3.5 per cent churn is a 28.6-month life and 1,110.86 of value, 5.6 to 1 against the cost — a steady-state sum, not a forecast.
Splits the budget 90,000 across five channels at the shares you set, refusing shares that do not add to 100.
Writes the brief objective, audience, the one true thing, the measure with its baseline and target, and the claims to check before anything runs.

What it will never do.

It never promises a result — leads, sales, reach, a ranking or a share — from any spend or message. It never writes a fake review, buys or fakes engagement, or makes a claim the product cannot stand behind. It never uses a person's data past the consent they gave or the law where they live, and never aims anything at children.

It cannot see your analytics, ad accounts or CRM unless you paste them; it cannot post, buy media, send or sign; it speaks when a chat is opened and forgets between sessions unless you bring MY-LEDGER.md back. It is an AI reading a text file: it can be wrong and can invent a number, a rule or a name, so check what matters.

What’s in the buy.

CARD.md — the whole card: who it is, its 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/THE-MESSAGE.md + THE-ARITHMETIC.md — the book in the seat's own voice, and every formula with its source and limit
scripts/funnel.py — the machine: five commands, standard library only, selftest 12/12
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 · THE-CLAUSES.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 12/12 · EVERY COMMAND ON THE RECORD · WITNESSED IN CLAUDE 2026-09-28 · EDITION 1 · PUNCH 9ED1D9179D05820679B43ED5

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 398 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. Not medical, legal, tax or financial advice, never the person’s boss, and not a licence to practise. 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 2026-09-28

funnel.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; the money is in whatever currency you type, with no symbol.

`funnel`	a funnel read stage by stage: each step's conversion and the end-to-end rate
`cac`	the cost of a customer from spend and new customers, and the months to pay it back
`ltv`	a customer's lifetime value from revenue, margin and churn, and its ratio to the cost
`mix`	a budget split by channel from the shares you set
`brief`	a one-page campaign brief from your objective, audience, message and measure
`selftest`	12 checks that prove the arithmetic; it must print 12/12

funnel · THE FUNNEL, STAGE BY STAGE

# THE FUNNEL · 4 stages
| stage | count | from the stage before |
|---|---|---|
| Site visits | 84,000 | — |
| Trial signups | 3,100 | 3.7% |
| Activated | 1,240 | 40.0% |
| Paid | 310 | 25.0% |
end to end  0.37% of the first stage reaches the last
working     each step = this stage ÷ the stage before × 100; end to end = last ÷ first × 100
plainly     one period, one cohort of your own counts; a step that drops the most is where it would look first, and the fix is not in the sum

cac · THE COST OF A CUSTOMER AND ITS PAYBACK

# THE COST OF A CUSTOMER
spend       62,000.00
customers   310 new
CAC         200.00
payback     5.3 months at 38.00 of margin a customer a month
working     CAC = spend ÷ new customers = 62,000.00 ÷ 310 = 200.00; payback = CAC ÷ margin a month = 200.00 ÷ 38.00
plainly     the spend you counted and the customers you can attribute, same period; a blended number hides a channel that does not pay

ltv · THE LIFETIME VALUE AND THE RATIO

# THE LIFETIME VALUE
ARPU        54.00 a month
margin      72.0%
churn       3.5% a month
lifetime    28.6 months
LTV         1,110.86
LTV : CAC   5.6 : 1
working     lifetime = 1 ÷ monthly churn = 1 ÷ 0.04 = 28.6; LTV = ARPU × margin × lifetime = 54.00 × 0.72 × 28.6 = 1,110.86
plainly     a steady-state sum, not a forecast: churn is rarely flat, and a ratio is only as honest as the churn and margin you brought

mix · THE BUDGET SPLIT BY CHANNEL

# THE MIX · 90,000.00
| channel | share | budget |
|---|---|---|
| Search | 35.0% | 31,500.00 |
| Social | 25.0% | 22,500.00 |
| Events | 20.0% | 18,000.00 |
| Content | 15.0% | 13,500.00 |
| Partners | 5.0% | 4,500.00 |
working     each channel = budget × share ÷ 100; the shares must add to 100
plainly     your split, priced; which share should move is what last period's funnel and CAC by channel say, not this table

brief · A CAMPAIGN BRIEF IN ONE PAGE

# THE BRIEF · Fill the winter cohort of the running programme

## Objective
Fill the winter cohort of the running programme

## Audience
first-time marathoners in Colorado who signed up for a spring race

## The one true thing
A plan that fits a working week, built by people who have run the distance

## Measure
paid signups from the campaign's landing page — baseline: · target: · read on:

## Channels · budget · dates
- channel: · budget: · from: · to:

## Claims to check before anything runs
- health, money, safety or a competitor named? → read out loud, evidence attached, counsel where the rule requires
working     the sections are the brief's; the words are yours — the card writes no claim you did not bring
plainly     a brief is a promise to measure, never a promise of a result

funnel · A FUNNEL THAT WIDENS — REFUSED

refused: stage 'Signups' has more than the stage before it — a funnel narrows

THE NUMBERS, NAMES AND DATES IN THESE RUNS ARE THE STUDIO’S OWN EXAMPLES, INVENTED FOR THE RECORD; NO REAL COMPANY, PERSON OR PROPERTY IS NAMED.

TRY IT IN ONE BREATH

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

YOUWhich channel should get more money?THE CARDasks for last period's spend and attributed customers by channel, prints the cost of a customer for each and the payback, and says which it would move first — then leaves the budget with you.

YOUWrite me a testimonial for the landing page.THE CARDno — a testimonial is a real person's words; it will draft the question to ask a real customer and the brief for the page, and check any claim on it against what the product can carry.

YOUThe board wants to know what marketing returns.THE CARDbuilds the page from your own funnel, CAC and lifetime value with the working shown, says what is attributable and what is not, and refuses to promise what next quarter returns.

QUESTIONS AT THE TABLE

Asked before the wire.

Will it promise results?

Never. It prints the arithmetic of the numbers you bring — conversion, the cost of a customer, the lifetime value — and says the market decides.

Will it write reviews or buy followers?

No. A review is a real person's words and engagement is earned. It will write the brief, the message and the question to ask a customer.

Does it know the advertising and privacy rules?

No, on purpose. It names where the rule lives — the regulator, the platform, counsel — and treats consent and the law where the person lives as above 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.

Can I buy it today?

Not yet. It is launching soon. THE RUNNER is the card on sale today; the rest of the house follows one by one.

Do I need Claude?

It is built for Claude first and was 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 house.

← THE C-SUITE · beside it: THE CRO · THE CPO · THE CCO