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Run 1Chapter stamp“Stamp "01 The cost" and "02 What we tried" in a corner of talk.mp4.”
Runs in
  • Claude Code
  • Codex
  • Cursor
  • Gemini CLI
  • GitHub Copilot
  • OpenCode
Generates with
Your agent's model
Tested with
Claude Code 2.1.322Claude Sonnet 5.51 real run, 9 Nov
Needs
Node 22+Chromeffmpeg
Licence
Recaply licence

Chapter Stamp

A small chapter stamp lands in a corner over the video while the speaker stays on screen.

$9.99once, yours to keep

Every premium skill and prompt, one plan$19.99 a month. Cancel any time. What you get when you buy

Payments are non-refundable. See our Terms of service.

Adds a small chapter stamp in a corner of a talking-head video, with a number and title, while the speaker stays on screen: a quiet way to mark sections. Timed to the words they say, on their own footage, with their sound kept; 16:9, 9:16, 1:1 or 4:5. Renders locally with Chrome and ffmpeg: no video model, no key and no cost. Use when someone wants to mark sections of a talking-head video without covering the speaker (a podcast clip, an interview, a long explainer).

By RecaplyUpdated 11 Nov

Install Chapter Stamp

After the download, ask your agent to add it, or run the line yourself.

Read https://recaply.co/skills/chapter-stamp-overlay/install.md and follow it to install the chapter-stamp-overlay skill from chapter-stamp-overlay.zip.

Paste it into your agent. It reads our install steps, finds the ZIP you downloaded and adds the skill for you.

New to skills? How to install a skill

Similar skills

All 735 skills

Who Chapter Stamp is for

What you get

  • Your video with the overlay timed to the words, sound kept
  • A compact stamp pops into a corner with the part number and title, holds while they start the section, then leaves
  • 16:9, 9:16, 1:1 or 4:5

Good fit

  • When someone wants to mark sections of a talking-head video without covering the speaker (a podcast clip, an interview, a long explainer)

Not for

  • Footage with nobody speaking
  • Cutting or re-editing the video itself

About this skill

You say

Stamp "01 The cost" and "02 What we tried" in a corner of talk.mp4.

It said back

Both stamps are in the top-left corner of talk.mp4. The check found no layout problems, and the render finished without errors.

Output: work1/talk-graphics.mp4, 1920×1080, 30 fps, 24.3 s. The speaker's sound is untouched. The source is 1280×720, so the output is upscaled to 1080p.

Show more

What it did in run 1

  1. chapter-stamp-overlay
  2. ls -la && node .claude/skills/chapter-stamp-overlay/scripts/check.mjs
  3. echo '{"video":"talk.mp4","transcript":"talk.json"}' > overlay.json && node .claude/skills/chapter-stamp-overlay/scripts/overlay.mjs overlay.json --words
  4. cat > overlay.json <<'E' {"video":"talk.mp4","transcript":"talk.json","look":"paper","face":[50,35], "beats":[ {"beat":"chapter","cue":"First, the cost","place":"over","pos":"tl","number":"01","title":"The cost","for":3.5}, {"beat":"chapter","cue":"So we tried three things","place":"over","pos":"tl","number":"02","title":"What we tried","for":3.5}]} E S=.claude/skills/chapter-stamp-overlay/scripts/overlay.mjs node $S overlay.json --face && node $S overlay.json --check
  5. node .claude/skills/chapter-stamp-overlay/scripts/overlay.mjs overlay.json --face; node .claude/skills/chapter-stamp-overlay/scripts/overlay.mjs overlay.json --check
  6. ./overlay.json
  7. ./face-check.png
  8. sed -i '' 's/"face": \[50, 38\]/"face": [48, 32]/' overlay.json && node .claude/skills/chapter-stamp-overlay/scripts/overlay.mjs overlay.json --check
  9. ./overlay-check.png
  10. ./overlay.json
  11. node .claude/skills/chapter-stamp-overlay/scripts/overlay.mjs overlay.json --check
  12. ./overlay-check.png
  13. node .claude/skills/chapter-stamp-overlay/scripts/overlay.mjs overlay.json
  14. Done

9 Nov 2026 · Claude Code 2.1.322 with Claude Sonnet 5.5 · 1 min 36 s · $0.12 of API use

Questions

Is Chapter Stamp free?

No. Chapter Stamp costs $9.99 once and stays in your Recaply account, or it comes with the Recaply plan ($19.99 a month), which opens every premium skill and prompt.

Which agents can use Chapter Stamp?

Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode.

What do I get when I buy Chapter Stamp?

A ZIP of the whole skill folder (105 KB): the SKILL.md your agent follows and its 12 other files, the references, templates and scripts it uses. You download it from this page whenever you need it, and install it in Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode. The Recaply plan opens it too, with every other premium skill and prompt.

How do I install Chapter Stamp?

Buy it, then download the ZIP from this page. For Claude Code, unzip it into .claude/skills/ in your project. For Codex, Cursor and Gemini CLI, unzip it and run npx skills add ./chapter-stamp-overlay with your agent's flag.

What do I get from Chapter Stamp?

Your video with the overlay timed to the words, sound kept. A compact stamp pops into a corner with the part number and title, holds while they start the section, then leaves. 16:9, 9:16, 1:1 or 4:5.

What does Chapter Stamp need?

Node 22+, Chrome and ffmpeg, and no API key. Each use costs nothing beyond your agent.

How big is Chapter Stamp?

13 files, about 80,016 tokens in all. The SKILL.md is about 2,353 tokens, and your agent reads it only when the job fits.

What does a run cost?

Our 1 runs took 1 min 36 s to 1 min 36 s and $0.12 to $0.12 of API use each, in Claude Code with claude-sonnet-5-5. On a Claude plan, a run counts toward your usage instead.

Do I have to name Chapter Stamp to use it?

Type /chapter-stamp-overlay first to make sure it loads. Without it, Claude Code may judge a small job simple enough to do without the skill.