# 04-07-a-aggregate-single-record-lab-rework-checklist

- [x] replace same-JVM demo-first framing with shell-first explanatory framing
- [x] verify generated shell surface with `help` and `meta.describe`
- [x] explain the contrast with `09-aggregate`
- [x] relocate record/datastore roundtrip proofs to `cozy` scripted
- [x] close sample and reflect completion in the parent plan
