generate-youtube-thumbnail SKILL.md skillA
generate-youtube-thumbnail from novoads/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novoads/agent-skills/generate-youtube-thumbnail@git:20260930.c0004d7Pins git:20260930.c0004d7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novoads/agent-skills
- Path
skills/generate-youtube-thumbnail/SKILL.md- Versions recorded
- 7
- Latest version
- git:20260930.c0004d7, committed Sep 30, 2026
- First version recorded
- Aug 13, 2026
- Size
- 14,887 bytes
- Repository stars
- 28
- License
- MIT
Generate high-CTR YouTube thumbnails using Nano Banana Pro via the Novoads API. Handles reference image upload, character likeness alignment, proven CTR-tested prompt formulas, and bounded batch generation. Use when the user asks to create a YouTube thumbnail, video thumbnail, A/B test thumbnail variations, or refers to thumbnail design with their face, brand assets, or product photos.
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
# Generate YouTube Thumbnail A reusable workflow for creating YouTube thumbnails via Novoads' `POST /v1/images` with `nano-banana-pro`, with proper character likeness and proven CTR formulas. ## When to use this skill Trigger on phrases like: - "make me a YouTube thumbnail" - "create a thumbnail for this video" - "I need thumbnail variations / A/B tests" - "remake this thumbnail with my face" - "generate 10 thumbnail concepts" - "thumbnail with [me / my product / my brand]" ## Read order Paths below are **relative to this skill's own folder**, and every file they name ships inside it. That holds wherever the folder lands: the repo, the `.claude/skills/` and `.cursor/skills/` copies `sync-skill.sh` makes, or a standalone install of just this skill. 1. **This file** — workflow, decision tree, batch generation 2. `prompting/guide.md` — likeness alignment, expressions cheat sheet, prompt structure 3. `prompting/formulas.md` — 5 proven thumbnail formulas with templates 4. `scripts/generate-batch.sh` — the batch script (upload once → generate → download) For the API contract itself — error codes, rate limits, the upload flow — the `novoads-api` …
Read the whole file at its exact version.
How to install
mdr add novoads/agent-skills/generate-youtube-thumbnail@sha256:12c16f7bf0aa588bThe line at the top of this page pins the label git:20260930.c0004d7, 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_kctxpsurokhto3s7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Aug 13, 2026 and Sep 30, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260930.c0004d7 latest | 2026-09-30 | c0004d7 | 14,887 B | A | view · diff |
| git:20260911.9e39357 | 2026-09-11 | 9e39357 | 14,795 B | A | view · diff |
| git:20260910.cd04517 | 2026-09-10 | cd04517 | 14,795 B | A | view · diff |
| git:20260814.0cfabea | 2026-08-14 | 0cfabea | 14,784 B | A | view · diff |
| git:20260814.62e1e32 | 2026-08-14 | 62e1e32 | 14,787 B | A | view · diff |
| git:20260814.227c71d | 2026-08-14 | 227c71d | 14,787 B | A | view · diff |
| git:20260813.5c277a4 | 2026-08-13 | 5c277a4 | 14,422 B | A | view |
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 (14887 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
novoads/agent-skills · 28 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_kctxpsurokhto3s7 GET https://markdownregistry.com/api/v1/resolve?ref=novoads/agent-skills/generate-youtube-thumbnail GET https://markdownregistry.com/api/v1/blob/12c16f7bf0aa588b51699baaaed877901ae135aff05148323bd7a017064ff6ef
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.