How to Write Useful YouTube Descriptions and Chapters

Structure a YouTube description with an accurate summary, verified chapters, useful links and a clear next step. Review AI drafts before publishing.

· Updated

By the SmoothyEdit team

A useful description tells viewers what the video covers and helps them find a section or resource. Start with an accurate summary, then add the details someone needs after watching.

YouTube’s description guidance recommends unique descriptions and placing the video’s topic in the opening lines. Use relevant terms naturally. Repeating keywords is not a substitute for useful information.

Describe this video first

Write one or two sentences that name the task and the result the viewer can expect. For a subtitle tutorial, that might be: “Generate local captions from a Premiere sequence, correct names and timing, then save an SRT.” Use that wording only when the video demonstrates those steps.

Put channel boilerplate and general links later. The visible preview varies across surfaces and devices, so check how the opening appears after upload rather than relying on a fixed character count.

Build chapters from the final export

Find the real section starts in the uploaded edit. A transcript of the raw recording can have different times after cuts, a new introduction or silence removal.

YouTube’s manual chapter requirements include a first timestamp at 00:00, at least three timestamps in ascending order and chapters at least ten seconds long. Chapters also depend on feature access.

For an illustrative tutorial, a chapter list could look like this:

00:00 What the workflow does
00:35 Prepare the sequence
02:10 Generate captions
04:20 Correct text and timing
06:00 Save the subtitle file

These are example times. Replace them with the actual positions in your video. Click each chapter after publishing to check it.

Add verified resources

Use real links to the tools, source material and related videos you mention. Check every URL. If a generated draft contains a product claim or a reference you did not provide, verify it before including it.

Choose one useful next action: watch the related walkthrough, download the demonstrated tool or read the supporting guide. A description does not need every channel link above its own summary.

Use Studio as a drafting step

Smoothy Studio’s description tool can draft from a transcript or summary. Review the topics, names, times and call to action before publication. Add your actual channel and resource links yourself.

A generated description is not a ranking guarantee, and editing a description does not earn a special freshness bonus automatically. Revise it when you can make it more accurate or useful. For related packaging decisions, see writing YouTube titles and planning thumbnails.