How it works
- Connect Trello's MCP server at https://mcp.trello.com/v1 to your AI assistant or coding agent, then sign in and approve access to your experiment board.
- Install the ExpLint MCP at https://explint.com/mcp to enable your agent to audit tests.
- Run the prompt below to audit these plans before the work starts.
How the check runs
- It opens each card in your Ideas list for the name, description, checklists, and labels, since a card often spreads its plan across all four.
- It sends that text to ExpLint with
explint__lint, which returns errors, warnings, and passes, each finding naming the rule behind it. - On approval it comments the findings and the draft on the card, and it can move the card to your Ready list once a fresh check comes back clean.
Copy and paste this prompt
Change the words in square brackets to name your own project, board, or test.
Use Trello MCP tools to read every card in [Ideas] on board [board name]. Lint each card's title, description, and checklist with explint.com against project [your ExpLint project name]. Show card names with errors and warnings, grouped by most common gaps. Do not change cards yet. On my approval, comment findings and a suggested rewrite on the card, lint the rewrite, and report whether errors cleared.
What ExpLint looks for
ExpLint ships over 24 rules, and a project switches each one on or off or rewrites it in plain English. These are the rules the plans this guide reads break most often. An error means the test cannot answer its question as written, and a warning means the result will be hard to judge when it comes in.
| Rule | Level | In plain words |
|---|---|---|
| hypothesis/is-falsifiable | error | A card that describes a change and a hope gives the board nothing a finished test could contradict. |
| hypothesis/is-based-on-evidence | error | The card should point at a metric reading, a support thread, or an earlier test, because an idea with no source is the one the lint marks. |
| metrics/has-one-primary-metric | error | One number has to decide the result, and a card that names three wins cannot be judged by any of them. |
| duration/covers-full-business-cycles | error | The card should say how many full weeks the test runs, since a label and a due date do not tell the next person what the window covers. |



