ClaudSkills / Growth & Marketing / conversion

Thumbnail Gen

Q: How do I install the Thumbnail Gen Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/thumbnail-gen/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Q: Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

Q: When should I use the Thumbnail Gen skill?

Use Thumbnail Gen when your Claude Code task falls under the Growth & Marketing category — specifically in the conversion area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. 'use Thumbnail Gen' or describe the task and let Claude pick). Browse related skills at https://claudskills.com/category/growth/.

Q: What is a Claude Code skill and how does the Thumbnail Gen skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Thumbnail Gen is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Growth & Marketing category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Growth & Marketing · Sub-category: conversion · Last updated: 2026-05-21

ai:gemini

Genera prompt pronti per modelli di image generation moderni (Gemini 3 Pro, ChatGPT Image 2, Ideogram, Flux 1.1 Pro, Midjourney v7) per creare thumbnail YouTube 16:9 (1280×720) del podcast Risorse Artificiali con testo integrato nel prompt, template differenziati numerato vs intervista, regole anti-necrologio. Use case: iterazioni creative aggiuntive su una thumbnail non convincente (3 varianti alternative), generazione thumbnail per rilanci (invocata da `interview-relaunch` Passaggio 3), produzione visual non-episodio (social graphics, cover articoli indipendenti). Per nuovi episodi del podcast usa direttamente `podcast-promo` v4.0 che include brief thumbnail + 3 prompt pronti al Passaggio 13 (non serve invocare separatamente).

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

<!-- CHANGELOG v1.2 (2026-04-22): Demote scope: non più nel flusso standard nuovo episodio. La skill podcast-promo v4.0 ha assorbito la generazione prompt thumbnail come Passaggio 13 inline (3 prompt pronti per Ideogram/Gemini 3 Pro/ChatGPT Image 2 direttamente nel file promo consolidato). Questa skill thumbnail-gen resta primaria per: - Iterazioni creative aggiuntive (se i 3 prompt di podcast-promo non ti convincono, invoca questa per produrre altre 3 varianti esplorando diversi toni/colori/angoli) - Rilanci retroattivi: invocata da interview-relaunch al Passaggio 3 con parametri…

What this skill does

Thumbnail Gen is a community-contributed Claude Code skill in the conversion sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/thumbnail-gen/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Thumbnail Gen Claude Code skill is built for growth marketers, product-led growth teams, founders running experiments, and performance marketing teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 178,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/thumbnail-gen
curl -L https://claudskills.com/skills/thumbnail-gen/SKILL.md \
  -o ~/.claude/skills/thumbnail-gen/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/thumbnail-gen/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/thumbnail-gen/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\thumbnail-gen\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Thumbnail Gen Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/thumbnail-gen/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Thumbnail Gen skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Thumbnail Gen skill?

Use Thumbnail Gen when your Claude Code task falls under the Growth & Marketing category — specifically in the conversion area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Thumbnail Gen" or describe the task and let Claude pick). Browse related skills at /category/growth/.

What is a Claude Code skill and how does the Thumbnail Gen skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Thumbnail Gen is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Growth & Marketing category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Thumbnail Gen [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/thumbnail-gen/

BibTeX

@misc{thumbnail-gen-2026,
  author    = {ClaudSkills},
  title     = {Thumbnail Gen [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/thumbnail-gen/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge

[![ClaudSkills](https://claudskills.com/badge/thumbnail-gen.svg)](https://claudskills.com/skills/thumbnail-gen/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-09 — free static scan against the OWASP Agentic Skills Top 10.

No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
✓ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/thumbnail-gen/#security)

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Browse all Growth & Marketing skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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