> ## Documentation Index
> Fetch the complete documentation index at: https://docs.concourse.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Call out key definitions and assumptions

Concourse can use your memories, but it helps to be explicit when it matters.

* "Use our finance definition of Active Customer, not raw signups."
* "Treat expansion as upgrades within the same logo only."
* "Use GAAP revenue, not billing-based revenue."

If you see something off, correct it once:

* "When I say Active Customer, I mean customers with at least one invoice in the last 90 days."

Concourse can turn that into a reusable memory so future prompts stay consistent.