No sample engagement for IRB / ECB TRIM

The IRB pack computes seven metrics over a graded population and its master scale, and since that was built there is a report path behind it: /irb-intake persists the book against the scale it was graded under, report/this platform assembles the run, and /validation-report has an IRB branch that produces the memo report/this platform has been able to build since that was built. WHAT IS STILL ABSENT IS A SAMPLE ENGAGEMENT, which is a different thing and a smaller one: a sample needs a bundled graded population, a bundled master rating scale with plausible provenance, and a set of planted findings a reader can see the product catch. Every other family's sample plants at least three. Fabricating an IRB portfolio well enough to plant meaningful findings in — grade-level default rates that fail a Jeffreys test for a reason a validator would recognise — is its own story, and shipping a thin one would demonstrate the product on evidence that does not behave like a bank's. Until then this screen says so rather than showing a sample that proves nothing. Corrected 8 Sep 2026 (twice): this entry said SIX metrics for the week after the pack gained a seventh and said no memo builder existed for the week after one landed — found while writing the scoping note for this family, which is why that document now has a test — and then said there was no report path for the hours after one landed, which is why this note now names the rename.