
Paste a video title and summary and get a thumbnail brief, a four-reviewer mobile legibility check with an issues table, and a generator-neutral image prompt.

Free: paste your TikTok/Reels/Shorts opening and get a hook score out of 100 across 6 criteria, plus 3 rewritten hooks. English & 繁中. No API key needed.

Send your short video and get its first six seconds read frame by frame: what is on screen and heard each second, where the picture freezes or the sound drops, a risk level per second with the reason, and three replacement openings to film. One report image plus the findings, for TikTok, Reels and YouTube Shorts.

Paste one competitor channel URL and get a benchmark report ending in 10 evidence-backed action items, built from public metadata on the channel's 100 most recent videos. No YouTube API key, no paid SaaS — just free open-source yt-dlp. Covers upload weekday patterns, top-video title hooks, length vs. performance, series structure, and 90-day direction in a 10-section report, with 1-5 channel comparison. Claude Code skill: 2 scripts + report template + 5-step workflow. Owner-only stats excluded.

Paste one paragraph about your channel and get a 10-rule thumbnail style guide: a proposed 3-color palette (hex codes) with contrast computed on those colors only, not your photos, text limits, one focal subject, a composition grid, an element budget and a series marker, applied to three example titles on paper.

Upload a video and get its best frames as ready YouTube thumbnails. ThumbPick scores every sampled frame for sharpness, exposure and faces (size, facing the camera, eyes open), drops near-duplicates and returns the top 8 with time codes. Then it makes three 1280x720 thumbnails with your title in large outlined type, placed off the faces, and checks each one at 168x94 and 320x180 for letter height and contrast. No title? It writes three options. Videos up to 30 minutes.

After making covers for videos that pulled nearly 200M views across YouTube, TikTok, and Instagram, I learned what actually makes someone stop scrolling and tap. The best videos still get ignored when the thumbnail is unclear, the text is hard to read, or the layout doesn't fit the feed. I built that judgment into this Skill, helping users create platform-ready covers with stronger hooks, clearer visuals, better typography, safe zones, and more click potential.

Upload one video and ffmpeg pulls candidate frames by scene change and even sampling, then scores them on sharpness, contrast, faces and colorfulness. A 2 to 6 word hook phrase goes on the chosen frame in 3 layouts (side panel, bottom stripe, top banner), giving 1280x720 JPG thumbnails A/B/C (under 2MB, YouTube spec). A comparison sheet shows full size next to the 168x94 mobile feed size, so you do not pick from the zoomed view only. Runs locally, no API key.