Skill Details
Runtime
(gpt-6-astra)
Example user message
[userMessage]: Research an English long-form YouTube video for new creators about making readable thumbnails without misleading viewers. Use current official YouTube guidance, including https://support.google.com/youtube/answer/12340300?hl=en and https://support.google.com/youtube/answer/72431?hl=en. Audience: first-time creators. I can film a desk with a camera and make original sample graphics, but I have no channel analytics or presenter photo. Give one practical angle, a short outline, two title options and one matching 16:9 image-generation prompt. Keep the complete response under 550 words. Do not claim that any design guarantees higher CTR.
Example agent response
Research Status
Researched 23 October 2026. Inspected three official YouTube Help pages as text; no videos watched or competitor thumbnails inspected. This is a planned English, long-form concept for first-time creators. No analytics or presenter photo are available.
Evidence Brief
YouTube recommends readable fonts and avoiding overly complex designs. Thumbnail & title tips. YouTube Help
Titles should accurately represent the video and put important words early. This supports a clear instructional promise. YouTube Help
YouTube recommends 16:9 for video thumbnails; 1280 × 720 below is a working canvas, not its current maximum-resolution recommendation. Custom thumbnails. YouTube Help
Thumbnails must not imply viewers will see something absent from the video. Thumbnails policy. YouTube Help
Recommended Angle
Build one thumbnail, then check readability and honesty. Demonstrate simplifying an original camera-on-desk graphic and checking every visual promise against filmed content. This fits your equipment and gives beginners a repeatable process; it is an editorial recommendation, not a proven performance formula.
Content Outline
Hook — planned: Shrink a deliberately cluttered original graphic: “Can you tell what this video actually contains?”
Choose: Film the desk and camera; identify one subject the video genuinely demonstrates.
Simplify: Rebuild the sample with a larger subject, fewer decorative elements and short, contrasting text. Show each edit.
Verify: Inspect the graphic at small size, then match its subject, overlay and title to the footage. Explain what you removed and why.
Title Options
Recommended: Make Clear, Honest YouTube Thumbnails: A Beginner’s Guide
Alternate: Build Your First Readable Thumbnail, Step by Step
Thumbnail Direction
One dominant original camera graphic on a desk-inspired background. Overlay: CLEAR & HONEST. Use this same sample in the planned demonstration.
YouTube Thumbnail Prompt
Create a native 16:9 YouTube thumbnail on a 1280 × 720 working canvas for an English beginner tutorial about readable, truthful thumbnails. Use one dominant subject: a large, original illustration of an unbranded camera resting on a pale wooden desk, viewed from a slightly elevated three-quarter angle. Position the camera on the right-center, with a bold recognizable silhouette and restrained lens detail. Leave generous negative space on the left for the exact overlay “CLEAR & HONEST” in two lines of large, heavy, easy-to-read sans-serif lettering. Use warm ivory text against a deep navy background, with a restrained amber accent behind the camera. Combine crisp graphic edges with subtle matte texture and soft directional lighting. Keep the background quiet and uncluttered. Maintain at least eight percent safe margins and leave the lower-right duration area empty. This is a conceptual sample graphic to be recreated in the tutorial. Include no people, logos, interface screenshots, arrows, analytics, performance figures, extra text, or before-and-after claims.
Alignment Check
Title → planned tutorial; camera visual → available desk footage and original sample; overlay → planned readability and content-match checks. No performance outcome is promised.
Next Step
Create and film the sample. Test overlay size only with novice viewers for legibility; add the exact lettering manually if generation distorts it.
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GPT-6-ASTRA
Turn a YouTube topic, script or video brief into source-backed research, a focused content angle, title options and a matching thumbnail prompt. Includes visual-to-content checks, exact overlay instructions and a supplied-material-only fallback. This fully editable skill requires web access for live research; no channel connection is needed.
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Added 1 hour ago
