# Design card: School news with checks **For the AI Agents workshop · filled-in example for guide 7** LeX Consultancy B.V. · 20 September 2026 This is what the card looks like once filled in. Form: **Workflow with checker and gatekeeper**, guide 7. Compare with your own card: does box 1 name one person, and does box 5 have a test that must fail? | 1. Who is it for | 2. What goes in | | --- | --- | | The communications officer who has to write every message three times (website, parent app, social) and has no time to check every version against the style guide. | Three fields: the core message (who, what, where, when), the class or year group, and the tone (informative, celebratory, urgent). | | 3. What comes out | 4. What it must stick to | | --- | --- | | If approved: three versions ready to post. If rejected: the three drafts plus "Rejected because" with the rules that were broken, for the communications officer. | The style guide from the knowledge base; the Checker (second LLM) rewrites the parent app version; the Gatekeeper (Code + IF/ELSE) measures word count, forbidden words, [FILL IN] and the hashtag. What does not pass the gate does not go out. | **5. How you know it works** | Test | What goes in | What must come out | | --- | --- | --- | | 1 | A complete message about sports day, celebratory | Approved, three versions within the word limits, with #ExampleCollege | | 2 | A message without a date | Rejected: contains [FILL IN] | | 3 (the hard one) | A message with "kindly" and "asap" | Rejected with the two forbidden words named | **What this card decided** - Boxes 1 and 2 decided the input fields and the first question of the app. - Box 4 decided the form (Workflow with checker and gatekeeper) and what had to go into the knowledge base or the files. - Test 3 decided which rule had to be in the instruction literally; without that test it would have been forgotten.