AI YouTube Description Writing: Accurate Copy From Your Video
Turn a checked transcript and a short list of verified links into a useful video description. Keep channel instructions reusable without publishing invented promises or timestamps.
Updated 5 min read
An AI YouTube description writer can turn your finished video transcript into a concise summary, useful chapters, and relevant links. Give it verified material, then check the draft against the actual edit before publishing. The description should tell viewers what they will get, rather than promise a better video than the one you made.
Tools like fenbs keep the channel prompt, approved wording, and publication tasks together so your next upload starts with the same instructions. The video and transcript stay in the tools where you produce them; the reusable work record stays available across writing sessions.
How do you turn a transcript into a description?
- Use the final edit. Correct important names, numbers, and product terms in its transcript before asking for copy.
- List the viewer, the main question answered, and the specific outcome the video actually demonstrates.
- Supply an approved link list with a label and purpose for each destination. Leave missing links out.
- Ask for a short opening, an accurate summary, optional chapter suggestions, and the approved links in separate parts.
- Compare the result with the video, test every destination, and review the description on a phone before publishing.
Say you recorded a tutorial about organizing a small workshop. The transcript covers labeling bins and setting up a checkout shelf, but never compares software. The description can explain those two methods. It should not announce a software comparison just because that sounds more attractive in search.
What should you give the AI before it writes?
Supply the title, the corrected transcript, and any important visual information that the transcript misses. A silent screen recording may show a setting changing without naming it aloud. Add a short note describing what happens so the summary does not leave out the actual lesson.
Separate episode facts from channel defaults. Episode facts include the specific demonstration, guest, and resources. Defaults include your usual credit wording, contact destination, and preferred tone. Keep time-sensitive offers out of permanent defaults so they do not silently appear under later videos.
- Audience: first-time workshop owners who need a simple way to find shared tools.
- Verified coverage: bin labels, a checkout shelf, and a weekly reset routine.
- Style: direct, practical, and free of claims about guaranteed results.
- Allowed resources: the actual checklist and the relevant playlist, using supplied destinations only.
- Missing information: flag an unavailable credit or link for review instead of inventing it.
An AI brain is useful here as the work record behind repeated uploads. Save the instructions that change the next draft, rather than every experimental description you rejected.
What belongs in the opening lines?
Lead with the subject and what the viewer learns. Write the opening so it makes sense before the viewer expands the description. YouTube’s description guidance (opens in a new tab) recommends using those first lines to describe the video and giving each video its own description.
For the workshop example, try: “Set up labeled storage and a shared-tool checkout shelf using the supplies already in your shop. This walkthrough shows the layout and the weekly reset that keeps it usable.” Each sentence points to something the recording needs to contain.
Ask for two openings, then choose one by accuracy and clarity. Keep ordinary words your audience uses when describing the problem. A paragraph packed with near-identical search phrases is harder to read and can obscure what is distinctive about this episode.
Do not judge the draft by a promised ranking. YouTube describes search as considering the match among the query, title, description, and video content, alongside engagement in its performance FAQ (opens in a new tab). Accurate metadata supports that match; it does not guarantee views.
How do you stop it inventing chapters and links?
Treat generated chapter times as suggestions until you check them against the final video. Transcript timestamps can refer to the raw recording, while removed introductions or pauses change the published timing. Watch each proposed transition and choose a title that describes the section that follows.
Follow the current requirements in YouTube’s chapter instructions (opens in a new tab), including the opening timestamp and chronological order. When you do not have reliable timing, omit manual chapters until someone checks them. A shorter correct description is preferable to a convincing list of broken navigation points.
For links, compare the output character by character with your approved list. Open each destination and confirm that a viewer can actually use it. A valid-looking address might lead to an old download, a private document, or a different product than the label suggests.
Keep the approved resource destinations in fenbs Links and listings, with the episode’s link-check task beside them; how fenbs works explains that shared record.
Reuse the channel prompt without retyping it
Save the description instructions in Skills and prompts, and keep approved wording in the project context. Add a task for each upload with its remaining checks, so another assistant can draft from the same instructions without treating an unchecked link as ready.
Create a free accountFree for one person · No credit card · Works with Claude, ChatGPT, Cursor and more
What should a reusable description prompt say?
Make the prompt specific about its inputs and the boundaries of the answer. Ask the assistant to report missing information separately so review notes cannot accidentally become published copy. Keep examples clearly labeled as examples.
Write a YouTube description using only the final transcript and approved links below. Audience: [viewer and their question] Voice: [channel instructions] Return: opening lines, short coverage summary, verified resources, and suggested chapters only when checked times are supplied. Do not invent coverage, quotes, results, links, sponsorship wording, or timestamps. List missing inputs under REVIEW NOTES, outside the publishable copy. Transcript: [paste] Approved links and labels: [paste] Checked chapter times, if any: [paste]
Preserve a useful prompt across tools with portable AI memory. If the episode still needs a recordable draft, use the separate YouTube script workflow before writing its description.
How to do this with fenbs
- Create a free account and add a project for your channel or video series.
- Save the reusable description prompt in Skills and prompts. Record any channel wording a person approved in Decisions and rules.
- Add the approved resource destinations to Links and listings and create an upload task covering transcript, chapter, and link checks.
- Connect a supported assistant from Integrations. Ask it to read the project context before drafting from the final transcript you provide.
- Save progress with the chosen draft location, completed checks, and anything waiting on your approval before publication.
fenbs is free for one person, no credit card. It does not upload videos, extract transcripts, or publish descriptions to YouTube. If you only need a one-off description, a document and a careful review may be enough.
What should you check after pasting the description?
Check the saved result as a viewer. Confirm the opening is useful on mobile, the chapter navigation matches the edit, and the resource labels still describe their destinations. Remove internal review notes and any copy that refers to scenes cut from the final video.
Use a clear approval workflow when another person publishes the upload. Record exactly which description was approved, then keep later corrections visible. More practical workflows are in AI at work.