Video Thumbnail Generator

Synced from the ChatCut Skill catalog · Updated August 7, 2026

Input a video or timeline plus the target platform, aspect ratio, and title direction; receive a truthful, high-contrast thumbnail built from real frames and readable on mobile.

What this Skill does

Create platform-ready thumbnails from real video frames. Use when the user wants a thumbnail, cover image, YouTube cover, Shorts cover, Bilibili cover, Xiaohongshu cover, or other video poster image.

Use this Skill when

The user wants a thumbnail, cover image, YouTube cover, Shorts cover, Bilibili cover, Xiaohongshu cover, or other video poster image.

What the package contains

8 workflow steps

The ordered procedure the agent works through, from the material you hand it to the finished timeline.

5 operating rules

Constraints it holds to along the way, so the result stays predictable instead of drifting mid-edit.

5 quality checks

What it verifies before calling the work done — the pass you would otherwise run yourself.

4 defined inputs

The footage, references, and decisions this workflow expects from you up front.

How to run it

Open this Skill in ChatCut and it loads into the project you are working in. From there you describe the job in your own words — the Skill supplies the procedure, so you do not have to spell out each step, and you can redirect it at any point without starting over.

Changelog

Updated August 7, 2026 — synced from the ChatCut Skill catalog. No revisions recorded before this one.