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motion-canvas

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Production pipeline for Motion Canvas — TypeScript-based programmatic vector animation with real-time preview. Use when users want explainer videos, technical demos, timeline-based motion graphics, code animations, animated UI mockups, or synchronized voice-over scenes built with Motion Canvas.

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How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/dracohu2025-cloud/draco-skills-collection/blob/HEAD/Ark%20Agent%20Plan%20Version/motion-canvas/SKILL.md

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Motion Canvas Production Pipeline

Motion Canvas sits between Manim and Remotion.

  • Manim thinks in objects + transforms
  • Remotion thinks in React components per frame
  • Motion Canvas thinks in scenes + timeline + reactive properties

Use this skill when the user wants code-driven animation but prefers TypeScript, real-time preview, scene choreography, vector motion graphics, or synced narration.

Best fit

Choose Motion Canvas when the task looks like one of these:

  • animated explainers
  • technical demos and mechanism walkthroughs
  • data visualization with staged reveals
  • animated UI / product mockups
  • code walkthroughs with highlighted ranges
  • timeline-synced narration

Avoid it when the real need is:

  • pure math / formula-heavy proof animation → prefer manim-video
  • bulk React template videos / content factory → prefer Remotion-style workflow
  • browser-interactive art toy / open-ended generative sketch → prefer p5js

Core mental model

A Motion Canvas project is:

  1. project.ts — declares scenes, fps, size, optional audio
  2. scene generator — function* (view) { ... }
  3. nodes — Rect, Circle, Txt, Line, Code, Img, layouts
  4. refs — access nodes later with createRef() / createRefArray()
  5. signals — reactive values you can read, set, and animate
  6. timeline flow — yield*, all(), sequence(), waitFor(), waitUntil()

The key move is simple:

Set up scene state, then drive properties over time with yield*.

Bootstrap

Current scaffold route validated here:

npx @motion-canvas/create@latest
cd <project>
npm install
npm start

The create package currently exists as @motion-canvas/create; npm view on this machine reports it as “Quickly scaffold Motion Canvas projects”.

CLI gotcha validated here

  • npx create-motion-canvas@latest failed against the current npm mirror because that package name does not exist there.
  • npx @motion-canvas/create@latest is the working package route.
  • Calling npx @motion-canvas/create@latest --help on this machine still dropped into an interactive Project name prompt instead of printing normal help.

So for automation, do not assume a harmless --help or non-interactive probe. Treat the scaffold command as interactive unless you have re-verified the exact flags in a PTY.

Typical structure:

project/
├── src/
│   ├── project.ts
│   └── scenes/
│       └── intro.tsx
├── package.json
└── vite.config.ts

Authoring rules

1. One scene, one idea

If you are explaining a mechanism, do not jam five concepts into one scene. Motion Canvas is strong at staged reveals. Use that.

2. Start from the final visual story

Before coding, state:

  • what appears first
  • what changes next
  • what the viewer should understand by the end of the scene

3. Prefer refs + named helpers over anonymous chaos

If a node will move later, give it a ref. If an animation pattern repeats, wrap it in a generator helper.

4. Animate meaningfully

Do not animate everything just because you can. Use motion to direct attention.

5. Keep scenes composable

Short scenes with clean entrances/exits beat one giant timeline blob.

Workflow

  1. Plan — scene list, key beats, narration markers, visual hierarchy
  2. Scaffold — create project, wire project.ts, create scene files
  3. Block — place the main nodes with static layout first
  4. Animate — add yield* timing, then parallel/stagger effects
  5. Sync — use waitUntil() / duration markers if narration matters
  6. Preview — iterate in the editor before worrying about final render
  7. Render — export once timing and layout are stable

Minimum working example

import {makeScene2D, Circle} from '@motion-canvas/2d';
import {all, createRef} from '@motion-canvas/core';

export default makeScene2D(function* (view) {
  const circle = createRef<Circle>();

  view.add(
    <Circle
      ref={circle}
      size={180}
      fill={'#3b82f6'}
      opacity={0}
      scale={0.6}
    />,
  );

  yield* all(
    circle().opacity(1, 0.6),
    circle().scale(1, 0.6),
    circle().position.x(240, 1.2),
  );
});

This already shows the whole model:

  • add a node to view
  • store a ref
  • animate properties over time with yield*

High-value patterns

  • Sequential: yield* a(); yield* b();
  • Parallel: yield* all(a(), b(), c())
  • Staggered: yield* sequence(0.1, ...anims)
  • Pause: yield* waitFor(0.5)
  • Narration marker: yield* waitUntil('beat-name')
  • Reactive value: const x = createSignal(0) then yield* x(100, 1)
  • Code walkthrough: use Code node and animate selection() / code.replace()

Critical pitfalls

  • scene imports need the ?scene suffix in project.ts
  • refs are functions: use circle() rather than circle
  • node properties are signals; many can be read, set, or animated the same way
  • if layout is still moving, do not polish easing yet
  • if a scene feels muddy, split it rather than stacking more effects

Deliverables

For real work, default to producing:

  • project source
  • at least one clean scene per concept
  • a short README or notes with run/render commands
  • exported preview or final render if requested

References

Load these on demand:

  • references/core-concepts.md
  • references/patterns.md
  • references/selection-guide.md
  • templates/scene-starter.tsx
  • templates/project-starter.ts