# Remotion Rule: Trimming

> Remotion skill rule: Trimming patterns for Remotion - cut the beginning or end of animations. Part of the official Remotion Agent Skill for programmatic video in React.

## Install

Save the content below to `.claude/skills/` or append to your `CLAUDE.md`:

## Quick Use

```bash
npx skills add remotion-dev/skills
```

This rule activates automatically when working with trimming in a Remotion project.

---

## Intro

Trimming patterns for Remotion - cut the beginning or end of animations. Part of the [Remotion AI Skill](https://tokrepo.com/en/workflows/57997ead-c8fa-409c-916f-28bbc0adc8d9) — the official Agent Skill for programmatic video creation in React.

**Best for**: Developers using Remotion for trimming
**Works with**: Claude Code, OpenAI Codex, Cursor

---

## Rule Content

Use `<Sequence>` with a negative `from` value to trim the start of an animation.

## Trim the Beginning

A negative `from` value shifts time backwards, making the animation start partway through:

```tsx
import { Sequence, useVideoConfig } from "remotion";

const fps = useVideoConfig();

<Sequence from={-0.5 * fps}>
  <MyAnimation />
</Sequence>;
```

The animation appears 15 frames into its progress - the first 15 frames are trimmed off.
Inside `<MyAnimation>`, `useCurrentFrame()` starts at 15 instead of 0.

## Trim the End

Use `durationInFrames` to unmount content after a specified duration:

```tsx
<Sequence durationInFrames={1.5 * fps}>
  <MyAnimation />
</Sequence>
```

The animation plays for 45 frames, then the component unmounts.

## Trim and Delay

Nest sequences to both trim the beginning and delay when it appears:

```tsx
<Sequence from={30}>
  <Sequence from={-15}>
    <MyAnimation />
  </Sequence>
</Sequence>
```

The inner sequence trims 15 frames from the start, and the outer sequence delays the result by 30 frames.

---

## Source & Thanks

> Created by [Remotion](https://github.com/remotion-dev). Licensed under MIT.
> [remotion-dev/skills](https://github.com/remotion-dev/skills) — Rule: `trimming`

Part of the [Remotion AI Skill](https://tokrepo.com/en/workflows/57997ead-c8fa-409c-916f-28bbc0adc8d9) collection on TokRepo.

---
Source: https://tokrepo.com/en/workflows/de485e69-f6b1-41e6-8205-5f5de565e400
Author: Skill Factory