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YouTube Thumbnail

The YouTube Thumbnail Maker That Lives Inside Your AI Assistant

On-brand, click-ready 1280x720 thumbnails from a single prompt, produced by the AI you already use.

Instant download · Single-seat license · No subscription · Claude, Claude Code, Cursor, Codex
Mia
AgentMia
Created byBruno Ashford
What this skill does

It turns a video topic into an on-brand, high-contrast 1280x720 YouTube thumbnail (plus a matching vertical story), proposing headline options first and composing the final art with pixel-perfect text.

Apps needed

Any AI assistant that can read a SKILL.md file: Claude, Claude Code, Cursor, or Codex. No separate app, no subscription, and no API key to manage.

Works with

ClaudeChatGPTCursorGitHub CopilotGeminiDeepSeekOpenClawClaudeChatGPTCursorGitHub CopilotGeminiDeepSeekOpenClaw

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YouTube ThumbnailInstant download · license included · no subscription

This YouTube thumbnail maker is a skill, not another web app: a single SKILL.md file you drop into the AI assistant you already run. Instead of dragging boxes in a design tool, you tell your assistant the video topic and it acts like an AI thumbnail generator plus an art director in one. It first proposes ready-to-pick headline options built to earn clicks (curiosity, numbers, authority, FOMO), then generates a clean on-brand scene and cr, aves the text with perfect spelling and spacing so it stays legible at small sizes. The result is a professional 1280x720 thumbnail that keeps a consistent look across every video, without design or coding skills.

What you gain
  • Thumbnails that hold your brand look and colors across every upload, so your channel reads as one identity
  • Higher click potential from headlines engineered for curiosity, contrast, and legibility at small sizes
  • Sharp, correctly spelled text every time (no crooked type, no typos baked into an image)
  • A full ready-to-upload 1280x720 file, plus a matching vertical story for Shorts and social promotion
  • Speed: go from a topic to finished art in one conversation, without opening a separate editor
  • You stay in control: it shows headline options and asks before generating anything
How it works, step by step
  • 1
    Drop the skill into your assistant

    Add the single SKILL.md file to Claude, Claude Code, Cursor, or Codex. Nothing to install, no account to create, no API key to paste.

  • 2
    Give it your video topic

    Tell it what the video is about, or point it at your script or outline. That is all the input it needs to start.

  • 3
    Pick a headline

    It proposes a set of headline options in a proven three-part shape (short tag + context line + one or two hero words + closing line), tuned for click-through. You choose one, edit it, or ask for more.

  • 4
    It builds the on-brand scene

    Using your brand palette, fonts, and an optional reference face or logo, it composes a clean high-contrast background with room for the headline. It confirms the plan before it generates anything that costs credits.

  • 5
    It craves the text and brand marks

    The chosen headline, wordmark, and logo are placed with exact spacing and spelling on top of the scene, kept clear of the YouTube timestamp corner so nothing gets covered.

  • 6
    You get the finished files

    A ready-to-upload 1280x720 PNG lands in your project, and on request a matching 1080x1920 story for Shorts or promo. Ask for variations any time.

What it generates
  • A ready-to-upload 1280x720 YouTube thumbnail (PNG)
  • A shortlist of click-ready headline options for the video
  • A matching 1080x1920 vertical story for Shorts and social promotion
  • On-brand scene art with consistent palette, fonts, and logo placement
  • Alternate versions and headline swaps on request
Variations

Close-up hero

A single well-lit face or subject on one side with the headline in the negative space, the layout that reads best on a phone screen.

Concept scene

A themed background (a command-center look, a product context, an abstract tech scene) that hints at the video subject while keeping the headline dominant.

Story for Shorts

The finished thumbnail reused as a vertical 1080x1920 promo card with a badge, title, call to action, and handle for Shorts and social feeds.

What is in the download

SKILL.md · README.txt · LICENSE.txt — Single-seat commercial use. Do not resell or redistribute the file. Compatible with Claude, Claude Code, Cursor, Codex.

FAQ
What is the YouTube Thumbnail skill?

It is a SKILL.md file you add to your AI assistant that turns a video topic into a finished, on-brand 1280x720 thumbnail. It proposes headlines first, builds a clean scene, and places the text with perfect spelling, so you get upload-ready art from a single conversation.

Does it work with Claude, Cursor, and Codex?

Yes. It runs in any assistant that reads a SKILL.md, including Claude, Claude Code, Cursor, and Codex. You use the same AI you already work in.

Do I need to install anything or have an API key?

No separate app, no subscription, and no API key to manage. You drop in the single skill file and start describing your video.

Do I need design or coding skills?

None. You describe the topic in plain language, pick a headline the skill suggests, and it handles layout, contrast, brand colors, and typography for you.

Will my thumbnails stay on brand across videos?

Yes. You give it your palette, fonts, and an optional logo or reference face, and it keeps every thumbnail consistent so your channel reads as one identity.

Can it make a version for Shorts?

Yes. On request it reuses the same thumbnail to produce a matching 1080x1920 vertical story with a badge, title, and call to action, ready for Shorts and social promotion.

New to AI skills?

An AI skill is a small, reusable instruction file (a SKILL.md) that teaches an AI assistant to do one job well. YouTube Thumbnail is exactly that: a Claude skill / AI agent skill you drop into your own assistant and run on demand, with no app, no subscription and no lock-in. You own the file forever.

It runs in Claude, Claude Code, Cursor, Codex and any assistant that reads a SKILL.md or a system prompt. Because it is just text, it is fully portable, and if it needs something to run, youtube thumbnail asks you for it first instead of inventing.

Creators reach for it as a podcast clips AI and an AI podcast clip generator, to turn a podcast into Shorts and to pull podcast highlights automatically, finding the best podcast moments without scrubbing the whole episode.

How to install and run it
  1. Download the file after checkout you get the SKILL.md plus a short README and your license.
  2. Add it to your AI drop SKILL.md into your skills folder (for example .claude/skills/) or paste its contents as a custom instruction.
  3. Run it ask your AI to use YouTube Thumbnail, give it what it asks for, and it does the work.
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