creator-thumbnail
Installation
SKILL.md
Creator Thumbnail
Step 1 — Concept (before generating anything)
From the title/topic, write one concept in three lines and confirm only if the user seems to care about direction; otherwise proceed:
- Promise — the single idea the viewer must get in 1 second (truthful to the video).
- Focal subject — one face/object, big, high contrast. Faces: strong, honest emotion.
- Headline — 0–4 words that add to the title, never repeat it. Optional.
Rules in references/thumbnail-rules.md (composition, contrast, text, honesty).
Step 2 — Generate the art (no text)
- Ratio
16:9(YouTube) or9:16(vertical cover). Size2kif a provider allows it. - Reserve space for the headline:
generous empty space on the left third for a headline. - User's face/logo/product → pass photos with
--refand say what each is for. - Ask for no text in the image; the headline goes on in Step 3.