# scenario-video-editing

MCP skill for editing existing Scenario footage with tool models instead of new generations. Handles LUT grading, trimming, split cuts, reversing, and background removal.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 383 installs · ★ 1141
- Author: scenario-labs
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/scenario-labs/skills/tree/HEAD/skills/scenario-video-editing/SKILL.md
- Updated: 2026-10-23
- HTML: https://affpapa.org/en/nevibecode/skills/scenario-video-editing

## What it does

This skill routes video editing tasks to deterministic Scenario tool models via MCP rather than regenerating clips from scratch. Every image post-processing tool has a video twin with `-video` appended to its identifier. You can run color correction, apply 3D LUT grading, or add grain to existing footage.

Field names differ across sibling tools. Video Cut uses `outputFormat`, while Resize Video expects `videoOutputFormat`. Video jobs often exceed standard execution windows. Because of that, runs should launch with `wait=false` and track status through `jobs_wait`.

Run costs scale with footage length. You should always trim unwanted frames before running color passes. Clips with alpha transparency cannot export as MP4: removal models output transparency only inside WebM or ProRes 4444 MOV containers.

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add scenario-labs/skills --skill scenario-video-editing -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/scenario-video-editing/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/scenario-video-editing/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add scenario-labs/skills --skill scenario-video-editing -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/scenario-video-editing/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add scenario-labs/skills --skill scenario-video-editing -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/scenario-video-editing/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install scenario-labs/skills scenario-video-editing
```

2. **Manually: put the files in place**
- File: `.github/skills/scenario-video-editing/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add scenario-labs/skills --skill scenario-video-editing -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/scenario-labs/skills --path skills/scenario-video-editing
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/scenario-video-editing/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add scenario-labs/skills --skill scenario-video-editing -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/scenario-labs/skills/tree/HEAD/skills/scenario-video-editing/SKILL.md

## When to use it
- trim footage to specific start and end points
- split a video into multiple segments at cut points
- apply 3D LUT color grading to a clip
- extract video backgrounds with alpha transparency
- reverse clip playback using dedicated tool models

## Example prompts
- Trim this footage to the target time range using model_scenario-video-cut.
- Apply a 3D LUT grade to the clip with model_scenario-postprocessing-lut-video.
- Reverse playback on the current video clip.

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: be96b8a35ca1a3ff.

BEGIN THIRD-PARTY FILE be96b8a35ca1a3ff
```text
---
name: scenario-video-editing
description: "Use when editing footage that already exists on Scenario through MCP with a tool model instead of a new generation: 3D LUT grading, color correction, film grain, vignette, blur, sharpen, glow, tint, desaturate, posterize, solarize, cubism, crystallize, oilify, chromatic aberration or dodge and burn on a clip; trimming to a time range, splitting at cut points, reversing, resizing, re-encoding, frame extraction, image sequences, background removal, segmentation masks, subjects as layers."
license: MIT
---

# Scenario Video Editing

## Overview

Every image post-processing effect has a video twin, and each is a `model_run` on a tool model: one
clip in, a few numbers, one clip out. Generating or restyling footage, lipsync, dubbing and
upscaling are `scenario-video`; concatenating, compositing and captioning a cut are
`scenario-video-assembly`; the still-image side is `scenario-image-editing`. Connection and the core
loop: `scenario`. If a sibling skill named here is missing from your available skills, ask the user
to install it (`npx skills add scenario-labs/skills --skill <name>`); unattended, proceed from tool
schemas and flag the gap.

## The twin rule

A video effect's id is the image id with `-video` appended, its file field is `video` rather than
`image`, and the knobs are identical: `model_scenario-postprocessing-lut-video` takes the same
`lutStyle` enum and `lutIntensity` as `model_scenario-postprocessing-lut`. All eighteen have twins,
from blur and color correction through oilify, posterize and vignette.

One twin differs: Dissolve (Video) blends the clip with a still `dissolveImage`, not a second clip;
crossfading two clips is a concat transition.

## Quick reference

| Need                  | Model or query                                                           |
| --------------------- | ------------------------------------------------------------------------ |
| Grade or stylize      | `filters={"tags": ["Post Processing"]}`, plus the effect name as `query` |
| Trim to a range       | `model_scenario-video-cut` (`startTime`, `endTime`)                      |
| Cut into segments     | `model_scenario-video-split` (`cutPoints`; N points give N+1 clips)      |
| Rescale or re-encode  | `model_scenario-resize-video`                                            |
| Play a clip backwards | `model_reverse-video`                                                    |
| Frames out, frames in | `model_scenario-video-to-image-seq`, `model_scenario-image-seq-to-video` |
| Subjects as layers    | `model_scenario-video-layers-extractor`                                  |
| Masks, cutouts        | `recommend` with the need in the user's own words                        |
```
END THIRD-PARTY FILE be96b8a35ca1a3ff

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