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Run 1Before and after slider“In talk.mp4 slide between still6.jpg and presenter.jpg as before and after.”
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, 10 Nov
Needs
Node 22+Chromeffmpeg
Licence
Recaply licence

Before and After Slider

A line sweeps across their before picture to reveal the after, then rests in the middle.

$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 before and after slider to a talking-head video: a line sweeps across the first picture to reveal the second as they say it, then rests so both halves show. 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 shows a transformation (a room, an edit, a redesign, a garden).

By RecaplyUpdated 11 Nov

Install Before and After Slider

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

Read https://recaply.co/skills/split-slider-overlay/install.md and follow it to install the split-slider-overlay skill from split-slider-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 Before and After Slider is for

What you get

  • Your video with the overlay timed to the words, sound kept
  • Each part lands as they say it, placed from the transcript
  • 16:9, 9:16, 1:1 or 4:5

Good fit

  • When someone shows a transformation (a room, an edit, a redesign, a garden)

Not for

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

About this skill

You say

In talk.mp4 slide between still6.jpg and presenter.jpg as before and after.

It said back

The slider video is rendered: talk-graphics.mp4 in the work folder, 1920x1080, 24.3 s, 30 fps. I ran the layout check before rendering and it found no problems. The sound is the original from talk.mp4, unchanged.

  • Slider: it runs from 17.4 s to 22.4 s and covers the frame while she keeps talking. still6.jpg is the before and presenter.jpg is the after, labelled "Before" and "After". The line sweeps across and rests at the centre (the default 50%).
  • Timing: it is tied to her words "After one quarter, meeting time dropped by 40%". The transcript has no literal reveal of two pictures, so this was the closest fit.
  • Look: paper, the warm off-white panels with a tomato accent. I used the default because you didn't pick one.
  • Face: set at [50, 33] from a frame at 18 s.
  • Captions: none, since you didn't ask for them.
Show more

What it did in run 1

  1. split-slider-overlay
  2. ls; S=.claude/skills/split-slider-overlay; node $S/scripts/check.mjs
  3. ls -a && node .claude/skills/split-slider-overlay/scripts/check.mjs
  4. echo '{"video":"talk.mp4","transcript":"talk.json"}' > overlay.json && node .claude/skills/split-slider-overlay/scripts/overlay.mjs overlay.json --words; file *.jpg
  5. echo '{"video":"talk.mp4","transcript":"talk.json"}' > overlay.json && node .claude/skills/split-slider-overlay/scripts/overlay.mjs overlay.json --words
  6. node .claude/skills/split-slider-overlay/scripts/overlay.mjs overlay.json --face 18
  7. ./face-check.png
  8. cat > overlay.json <<'E' { "video": "talk.mp4", "transcript": "talk.json", "look": "paper", "face": [50, 33], "beats": [ { "beat": "slider", "cue": "After one quarter", "images": ["still6.jpg", "presenter.jpg"], "labels": ["Before", "After"], "for": 5 } ] } E node .claude/skills/split-slider-overlay/scripts/overlay.mjs overlay.json --check
  9. ./overlay.json
  10. node .claude/skills/split-slider-overlay/scripts/overlay.mjs overlay.json --check
  11. ./overlay-check.png
  12. node .claude/skills/split-slider-overlay/scripts/overlay.mjs overlay.json
  13. Done

10 Nov 2026 · Claude Code 2.1.322 with Claude Sonnet 5.5 · 1 min 34 s · $0.13 of API use

Questions

Is Before and After Slider free?

No. Before and After Slider 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 Before and After Slider?

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

What do I get when I buy Before and After Slider?

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 Before and After Slider?

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 ./split-slider-overlay with your agent's flag.

What do I get from Before and After Slider?

Your video with the overlay timed to the words, sound kept. Each part lands as they say it, placed from the transcript. 16:9, 9:16, 1:1 or 4:5.

What does Before and After Slider need?

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

How big is Before and After Slider?

13 files, about 79,859 tokens in all. The SKILL.md is about 2,196 tokens, and your agent reads it only when the job fits.

What does a run cost?

Our 1 runs took 1 min 34 s to 1 min 34 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 Before and After Slider to use it?

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