Quality
Determinism, verify warnings, and layout metrics make diagram edits reviewable.
verify.ok is a gate, not a promise of visual perfection. Include SVG/PNG/ASCII artifacts for human review when the change is visual.
Warnings are tiered so an agent knows how to react: structural problems can block a safe return and should be fixed first; geometric warnings ask for visual review; lint warnings mean a smaller or cleaner edit. Every code has a page under warnings with what triggers it and how to clear it.
Evidence is curated, not raw private prompts: rely on CI, deterministic layout metrics, and generated artifacts to review a change. Private eval prompts and holdbacks are not public site content.