Six prompts that survive the Check step, and the specific thing to check in each one. Copy a row, edit it in place, and tick Mine when you have made it yours.
The sixth row is a prompt you should not send. It is here on purpose. A library that only shows you wins teaches you nothing about the edge.
Write the prompt first, then write the check. If you cannot name what you would check, the prompt is not finished. That one habit is the difference between a prompt library and a folder of hopeful text.
Four fields, every time: Goal, Context, Source, Format. Goal is the only one you always need. Source is the one people leave out, and it is the one that decides whether the answer is grounded in your work or in nothing.
Part of Copilot on One Page, by Mathieu Kessler, independent practitioner: kesslernity.com. Checked against Microsoft's own documentation in August 2026. Free to use and print, personally or inside your business. Keep the source credit. Full terms: kesslernity.com/license.