HomeCasa YouTube video SEO: title, description, chapters and thumbnail brief
Optimize a YouTube video with titles, a description, timestamped chapters, tags and a thumbnail brief based on its script or transcript. Designed for ChatGPT, Claude and Gemini. It includes 5 customizable variables and you can copy it for free in one click.
Intermediate · Text · Pending editorial review
Prompt
Act as a YouTube SEO and channel strategy specialist.
Video details:
- Topic: {{topic}}
- Channel and audience: {{channel}}
- Main keyword: {{keyword}}
- Approximate length: {{length}}
- Script, transcript or summary: {{transcript}}
Deliverables:
1. Five titles of max 60 characters, with the keyword in the first half and a clear promise. Show the character count and recommend one.
2. Optimized description:
- The first two lines (about 150 characters) must sum up the video's value and include the keyword naturally.
- A 150-250 word body with related terms.
- A links block with [FILL IN: link] placeholders.
- A short subscribe call to action.
3. Timestamped chapters starting at 00:00, each with a descriptive title, based only on the content provided. If I do not have exact times, mark each one [verify timestamp].
4. 10-15 tags ordered from most specific to most general.
5. Thumbnail brief: 3 concepts with on-screen text (max 4 words), main expression or element, composition and color contrast. The text should complement the title, not repeat it.
6. One pinned-comment question idea to spark discussion.
Constraints:
- The title and thumbnail must match what the video actually delivers: no misleading clickbait.
- Do not invent data, results or partnerships. If the video is sponsored, remind me to tick the paid promotion box.
- If the transcript is not enough to build chapters, ask me for more detail.
Format: sections with headings and copy-paste-ready lists.How to use it
Paste the auto-generated transcript from YouTube Studio or your script into the variable. Check the timestamps against the video before publishing: chapters only appear if the first starts at 00:00 and there are at least three.
Usage example
Topic: how to make sourdough bread without a stand mixer · Channel: home cooking for beginners · Keyword: sourdough bread · Length: 14 minutes.
Sample output
Titles (max 60 characters)
| Title | Characters |
|---|---|
| Budget Gaming PC: How to Build One Under $800 | 45 |
| Budget Gaming PC Build for Beginners, Step by Step | 50 |
| My $800 Budget Gaming PC: Parts and Full Build | 46 |
Recommended: the first one; the keyword comes first and the promise is clear.
Description (opening lines)
Build a budget gaming PC for under $800, even if you've never opened a computer. I'll show you how to pick the parts and put them together step by step.
🔗 Parts list: [FILL IN: link] 🔗 Windows install video: [FILL IN: link]
Chapters
00:00 What we're building
01:30 Choosing the CPU and motherboard [verify timestamp]
04:10 Graphics card and RAM [verify timestamp]
07:45 Step-by-step build [verify timestamp]
15:20 First boot and testing [verify timestamp]Thumbnail: concept 1
- Text: "Only $800?"
- Main element: the finished PC powered on, with a surprised face beside it.
- Contrast: dark background with RGB lighting, yellow text.
If the video is sponsored, remember to tick the paid promotion box…
Key facts
- Category
- Social media · YouTube
- Output type
- Text
- Level
- Intermediate
- Designed for
- ChatGPT, Claude and Gemini
- Verified in
- Pending editorial verification
- Variables
- Video topic, Channel and audience, Main keyword, Length and Script or transcript
- Language
- English
- Price
- Free, no sign-up
- Updated
- Nov 7, 2026
Frequently asked questions
Do tags still matter on YouTube?
Very little: YouTube says they mainly help when your topic is commonly misspelled. The title, thumbnail and description weigh far more, which is why the prompt focuses on them.
What if I do not have a transcript?
Paste a section-by-section summary with approximate times. The AI will mark chapter times as [verify timestamp] so you can adjust them. Remember that YouTube needs at least three chapters, starting at 00:00.
What is this prompt for?
Optimize a YouTube video with titles, a description, timestamped chapters, tags and a thumbnail brief based on its script or transcript.
Which AI tools does it work with?
It is designed for ChatGPT, Claude and Gemini. We have not verified it in these tools yet, so results may vary between them.
How do I customize the prompt?
Click “Customize” and fill in the variables (Video topic, Channel and audience, Main keyword, Length and Script or transcript). The text updates instantly and you can then copy it in one click. Values are stored only in your browser.
Do I need experience to use it?
It is intermediate: it helps to know the topic so you can provide good context and review the result critically.
Is this prompt free?
Yes. Every HomeCasa Prompts prompt is free, with no sign-up or subscription. You can also use them in professional projects.
Can I trust the AI output?
Treat it as a high-quality draft: always check data, figures and important claims before publishing or making decisions.