• ad-creative (2.8.0 → 2.8.1): new references/short-form-video-specs.md — the vertical-video production spec + a creator-format library, distilled from Daniel Hangan's reelclaw-templates (built on HeyGen's HyperFrames; patterns credited, no code vendored). Part 1, the spec, applies to every 9:16 video the skill makes (iMessage reveals, motion ads, and the creator formats): the cross-platform safe-zone band (TikTok∩IG Reels worst case — 220px top / 500px bottom / 180px sides → a 720×1200 centered text-safe area, the single most-missed constraint), the classic TikTok caption recipe (white fill + black paint-order stroke, no background pill), static-caption auto-sizing (~58px shrinking in 2px steps to a 26px floor, re-fit after document.fonts.ready), audio defaults with the organic-vs-baked-music decision (attach the trending sound in-app for organic reach; bake music only for ads / where native sound can't attach; fade the last ~0.8s), and the deterministic-render contract. Part 2 is three creator/UGC formats the skill didn't document — Reaction + Demo (hard cut), "No Yapping" silent split-screen tutorial, and Greenscreen Reaction — each as a reusable structure with when-to-use and mechanics. SKILL.md's Generating Ad Visuals section routes to it (load before producing any vertical video) and the description gains 'UGC ad' / 'reaction ad' / 'greenscreen ad' / 'no yapping split-screen video' / 'TikTok/Reels ad format' triggers (older redundant triggers trimmed to stay within the 1024-char limit). New eval (id 12) covers the format + safe-zone + organic-music decision in one prompt. Cross-links to the video skill for framework/render choices.