Verification — fw-10-virtual-list

A module is complete when these pass against measured or observed output, not when the prose has been read.

  • 100,000 rows with a small DOM window; fixed then dynamic heights
  • Scroll anchoring keeps the anchored row stable
  • All five failure-lab items completed
  • transform vs top choice justified from bi-09
  • Accessibility consequences documented with a mitigation

Gate (§44) — for every source-reading exercise in this module

  • Why does this code exist?
  • What invariant does it maintain?
  • Who calls it?
  • What does it call?
  • Which process and thread executes it?
  • What happens if it is removed?
  • How is it tested?
  • What simpler design would fail, and why?

Record