---
name: thumbnail-ultrathink
description: "YouTube employee · Assisted thumbnail judgment for choosing a high-impact visual story before rendering. Deconstructs relevant references, creates three materially different thumbnail visual stories, rejects objectively weak concepts, explains close calls, records the human's selection and reason, and produces a renderer-neutral concept brief. USE WHEN the user says 'analyze this thumbnail', 'why does this thumbnail work', 'thumbnail ideas', 'three thumbnail visual stories', 'choose a thumbnail concept', 'design a thumbnail concept', 'whiteboard thumbnail', 'visual metaphor', or needs a thumbnail that communicates in one second. Do NOT use for a complete YouTube production package (youtube-strategy), image rendering alone, or post-publish analytics."
---

# thumbnail-ultrathink — MCP loader

Load the licensed instructions before doing this job:

`get_skill(skill_id="thumbnail-ultrathink", path="SKILL.md", section="contents")`

The tool prefix varies by host. Search available and lazy-loaded tools for any name ending in `get_skill`. If none exists, run the local `check-setup` skill and follow its repair. Do not improvise install commands or versions, and never ask for a license key in chat.

Follow the returned routing map. Fetch only the section this run needs, then fetch each workflow, reference, template, example, or script it names with the same `skill_id` and exact remote path. Those files live on the AIEB server, not local disk. If a fetched instruction says to run a script, fetch it first and follow its safety instructions.

If the server returns a 🔒, entitlement, or setup message, relay its explanation and next action once. Do not retry a locked call, reconstruct paid content, or claim setup is fixed before a live fetch succeeds.