Youtube Thumbnail

Community

timscheuerai

youtube-thumbnail

Design a legible YouTube thumbnail whose visual promise is supported by the actual video.

Overview

Publisher	timscheuerai
Repository	`linkedin-funnel`
Skill name	`youtube-thumbnail`
Stars	60
Forks	20
Bundled files	2
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
2 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by timscheuerai on GitHub. Read the source before you install it.

Installation

Install the Youtube Thumbnail AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/timscheuerai/linkedin-funnel/tree/main/skills/youtube-thumbnail
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/timscheuerai/linkedin-funnel.git /tmp/linkedin-funnel
mkdir -p .claude/skills
cp -r /tmp/linkedin-funnel/skills/youtube-thumbnail .claude/skills/youtube-thumbnail

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Youtube Thumbnail in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Youtube Thumbnail on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Youtube Thumbnail is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Make the thumbnail promise visible

Read the video's actual content, target viewer, title and context/brand/BRAND.md. Identify one concrete idea, contrast or outcome the video can fulfill. Use authentic supplied faces/screenshots where the brief calls for them.

Sketch a few distinct compositions, then choose the one that reads clearly at small size. Text should add information to the title, not repeat all of it. Do not invent result screenshots, endorsements or emotionally misleading scenes.

For a big title over a face frame (the tool or topic name across the chest), the silver chrome text in references/silver-text-treatment.md and assets/silver-text.css is a tested starting point.

Use the available design/image tool and the actual brand rules. Verify current platform dimensions, file size and format requirements before claiming upload readiness. Keep editable source or the generation/edit brief with the export.

Inspect the thumbnail at full and small sizes for readability, cropping, contrast and factual accuracy. Use brand-review for a requested independent visual review, without spawning agents unless authorized by the user/environment.

Return the export and editable source, actual dimensions and any unverified upload constraint. Thumbnail creation alone does not upload or publish.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Youtube Thumbnail AI skill do?

Design a legible YouTube thumbnail whose visual promise is supported by the actual video.

Why use Youtube Thumbnail on TypingMind?

Because you install it once and use it with any model. Youtube Thumbnail is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Youtube Thumbnail in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/timscheuerai/linkedin-funnel/tree/main/skills/youtube-thumbnail. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Youtube Thumbnail?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Youtube Thumbnail?

As many as you like. As long as a model supports skills, you can use Youtube Thumbnail with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Youtube Thumbnail AI skill free?

Yes. It is published on GitHub by timscheuerai under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Make the thumbnail promise visible

Bundled files

Frequently asked questions

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