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Run 1Side list that builds“In talk.mp4, list the three things we tried beside me, one by one, and stress the written updates.”
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

Side List That Builds

The speaker steps aside and a list builds point by point as they talk through it.

$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 list that builds point by point beside a person talking to camera, each point appearing the moment they say it, with one point stressed at the end. 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 walks through a few points, tips or reasons in a talking-head video and wants them to appear one by one beside them.

By RecaplyUpdated 11 Nov

Install Side List That Builds

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

Read https://recaply.co/skills/building-list-overlay/install.md and follow it to install the building-list-overlay skill from building-list-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 Side List That Builds is for

What you get

  • Your video with the overlay timed to the words, sound kept
  • The speaker slides to one half and a list grows on the other, one point at a time, in time with their words
  • 16:9, 9:16, 1:1 or 4:5

Good fit

  • When someone walks through a few points, tips or reasons in a talking-head video and wants them to appear one by one beside them

Not for

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

About this skill

You say

In talk.mp4, list the three things we tried beside me, one by one, and stress the written updates.

It said back

I've rendered talk-graphics.mp4 (1920×1080, 24.3 s, 30 fps). The three things appear in a list beside you, each as you say it. Your sound is untouched.

The list runs from 9.5 s to 19.5 s. The check found no layout problems, and I looked at the settled frame. You're on the right and the list is on the left, with your face clear of it. It uses the paper look (warm off-white panel, black type, tomato accent) and the heading "What we tried". It starts as you say "So we tried three things".

Show more

What it did in run 1

  1. building-list-overlay
  2. ls -la && node .claude/skills/building-list-overlay/scripts/check.mjs
  3. echo '{"video":"talk.mp4","transcript":"talk.json","beats":[]}' > overlay.json && node .claude/skills/building-list-overlay/scripts/overlay.mjs overlay.json --words
  4. cat > overlay.json <<'E' { "video": "talk.mp4", "transcript": "talk.json", "look": "paper", "beats": [ { "beat": "list", "cue": "So we tried three things", "title": "What we tried", "points": ["Written updates on Friday", "One shared board", "15-minute call, only when stuck"], "cues": ["Written updates on Friday", "one shared board", "15-minute call"], "focus": 0, "until": "something is stuck" } ] } E S=.claude/skills/building-list-overlay/scripts/overlay.mjs node $S overlay.json --face
  5. ./face-check.png
  6. ./overlay.json
  7. node .claude/skills/building-list-overlay/scripts/overlay.mjs overlay.json --face
  8. ./face-check.png
  9. ./overlay.json
  10. node .claude/skills/building-list-overlay/scripts/overlay.mjs overlay.json --check
  11. ./overlay-check.png
  12. ./overlay.json
  13. node .claude/skills/building-list-overlay/scripts/overlay.mjs overlay.json --check && node .claude/skills/building-list-overlay/scripts/overlay.mjs overlay.json && ls -la *.mp4
  14. Done

9 Nov 2026 · Claude Code 2.1.322 with Claude Sonnet 5.5 · 1 min 43 s · $0.13 of API use

Questions

Is Side List That Builds free?

No. Side List That Builds 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 Side List That Builds?

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

What do I get when I buy Side List That Builds?

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 Side List That Builds?

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 ./building-list-overlay with your agent's flag.

What do I get from Side List That Builds?

Your video with the overlay timed to the words, sound kept. The speaker slides to one half and a list grows on the other, one point at a time, in time with their words. 16:9, 9:16, 1:1 or 4:5.

What does Side List That Builds need?

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

How big is Side List That Builds?

13 files, about 79,983 tokens in all. The SKILL.md is about 2,321 tokens, and your agent reads it only when the job fits.

What does a run cost?

Our 1 runs took 1 min 43 s to 1 min 43 s and $0.13 to $0.13 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 Side List That Builds to use it?

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