One buyer
A card that serves everyone cannot identify a reachable channel or a meaningful commitment.
Free private tool
Build an economic method card before you build more inventory.
Name the buyer, mechanism, first test, and stop rule. Export a clean record in Markdown or JSON.
Privacy: the card is generated and stored locally in your browser. Its contents are not submitted to The Value Bureau.
Method inputs
Make the mechanism and decision visible.
Live method card
Export the decision structure.
The exported record is a hypothesis, not evidence. Attach experiment results and sources before changing its status.
Use it well
Three rules prevent a neat card from becoming false confidence.
One primary metric
Supporting metrics can explain the funnel. One primary metric decides the test.
Write the stop rule first
Archive conditions written before launch are harder to negotiate away after weak results.