thumbnail-concept-generator SKILL.md skillA
thumbnail-concept-generator from nicepkg/ai-workflow is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nicepkg/ai-workflow/thumbnail-concept-generator@git:20260118.be84779Pins git:20260118.be84779 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nicepkg/ai-workflow
- Path
workflows/video-creator-workflow/.claude/skills/thumbnail-concept-generator/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260118.be84779, committed Jan 18, 2026
- Size
- 10,236 bytes
- Repository stars
- 291
- License
- MIT
Generate thumbnail concepts and ideas for YouTube, TikTok, and other video platforms. Creates detailed visual briefs with composition, text, colors, and emotion suggestions. Use when planning thumbnails, improving CTR, or briefing designers.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Thumbnail Concept Generator Create click-worthy thumbnail concepts that maximize CTR. ## Thumbnail Psychology ``` 📊 THUMBNAIL IMPACT: - 90% of top-performing videos have custom thumbnails - Thumbnails are responsible for ~50% of a video's click-through rate - Viewers decide in <2 seconds whether to click KEY PRINCIPLE: Thumbnail must work at SMALL sizes (mobile, sidebar) ``` ## Thumbnail Elements ### 1. Faces & Emotions ``` EMOTION SCALE (from most to least effective): 1. 😱 Shock/Surprise - Wide eyes, open mouth 2. 🤔 Curiosity - Raised eyebrow, intrigued look 3. 😄 Joy/Excitement - Genuine smile, energy 4. 😤 Frustration/Anger - Visible emotion 5. 🤯 Mind-blown - Exaggerated reaction 6. 😢 Sadness - For emotional content FACE RULES: - Eyes should be visible and expressive - Face takes up 30-50% of thumbnail - Direct eye contact with camera - Avoid sunglasses/obstructions ``` ### 2. Text Overlay ``` TEXT RULES: - Maximum 3-4 words - Large, bold, readable at small size - Contrasting colors (white on dark, dark on light) - Don't repeat the title exactly - Use outline/shadow for readability EFFECTIVE TEXT: ✅ "IT WORKED" / "$10K" / "DON'T BUY" / "vs" …
Read the whole file at its exact version.
How to install
mdr add nicepkg/ai-workflow/thumbnail-concept-generator@sha256:3e419316ca9a1a8eThe line at the top of this page pins the label git:20260118.be84779, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_uemq5eir73n6eerp)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jan 18, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (10236 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nicepkg/ai-workflow · 291 stars · license MIT · pushed 2026-01-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uemq5eir73n6eerp GET https://markdownregistry.com/api/v1/resolve?ref=nicepkg/ai-workflow/thumbnail-concept-generator GET https://markdownregistry.com/api/v1/blob/3e419316ca9a1a8e683363c0186cde980970ae3be0236f71ca0d417cec4e1638
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.