Surfaces six real traps an agent learns the expensive way: full-frame
videos need BOTH HTML width/height attrs AND `!important` CSS because
the runtime applies inline size from intrinsic dimensions; preview-scrub
matters more than a 60-minute render for visual bugs; legibility comes
from scrims + text-shadow, not from lowering video opacity; downloaded
stock needs dense keyframes (-g 30) before render or parallel capture
times out; --workers 1 is mandatory for video-heavy compositions; the
deterministic-font compiler silently replaces unmapped families like
Space Grotesk, use Outfit/Inter/JetBrains Mono/Poppins instead. Each
gotcha documented with the fix-at-author-time pattern so the next agent
ships a clean first render.
calesthio
b6ce481073