thumbnail

thumbnail is a skill for Claude Code from kenneth-liao/ai-launchpad-marketplace. It costs 60 tokens per session (1,303 once invoked), scanned A, original, no licence file.

A tool for creating thumbnails and cover images for videos or courses, with attention to getting viewers to click.

In plain words
What is it for?
Use it to make YouTube thumbnails, course covers, and other promotional images.
Why use it?
It helps turn video or course content into a clear visual preview instead of leaving the design to guesswork.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the creator-stack plugin — 21 skills, 2 agents shipped together

Good fit Use it to make YouTube thumbnails, course covers, and other promotional images.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kenneth-liao/ai-launchpad-marketplace/thumbnail
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add kenneth-liao/ai-launchpad-marketplace --skill thumbnail
Clone the repo
git clone --depth 1 https://github.com/kenneth-liao/ai-launchpad-marketplace

Made for: Claude Code.

Or install creator-stack, the plugin that ships this one along with the rest of its 21 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for thumbnail

README.md
[![agentmods](https://agentmods.dev/badge/skills/kenneth-liao/ai-launchpad-marketplace/thumbnail/github.svg)](https://agentmods.dev/skills/kenneth-liao/ai-launchpad-marketplace/thumbnail)
Your own site
<a href="https://agentmods.dev/skills/kenneth-liao/ai-launchpad-marketplace/thumbnail"><img src="https://agentmods.dev/badge/skills/kenneth-liao/ai-launchpad-marketplace/thumbnail/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for thumbnail

Your own site · 80×15
<a href="https://agentmods.dev/skills/kenneth-liao/ai-launchpad-marketplace/thumbnail"><img src="https://agentmods.dev/badge/skills/kenneth-liao/ai-launchpad-marketplace/thumbnail.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,303 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00060 $0.01303
Opus 5 $0.00030 $0.00651
Sonnet 5 $0.00012 $0.00261
Haiku 4.5 $0.00006 $0.00130

Measured 12d ago against content hash 05e5ff83a497, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

thumbnail scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

If a company logo is not locally available, you can search for it online and download it using curl, then pass the absolute path to the downloaded image in the prompt. Save all downloaded images to `./downloads/`, making
creator-stack/skills/thumbnail/SKILL.md · 95 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 95 lines · 60 tokens per session scan A 05e5ff83a497

Subscribe to this mod's changes

thumbnail is a skill published in the GitHub repository kenneth-liao/ai-launchpad-marketplace (127 stars, last pushed 5mo ago), with no licence file. It adds 60 tokens to every session and 1,303 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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