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Motion Designer

  • 433 installs
  • 37 repo stars
  • Updated February 26, 2026
  • ncklrs/startup-os-skills

motion-designer is a Remotion video specification skill that turns vague video ideas into scene-by-scene motion specs with timing and audio for developers who need structured plans before writing React composition code.

About

motion-designer is a startup-os-skills guide that applies decades of After Effects and motion graphics knowledge to Remotion video specifications. Before any React code is written, the skill produces scene-by-scene breakdowns with visual descriptions, frame-level animation timing, background music strategy, sound effect placement, transition design, and visual hierarchy notes. It applies the 12 Disney animation principles, a four-phase emotional arc (hook, build, peak, resolve), and layered audio design across background music, SFX, ambient texture, and voiceover. Seven rules reference files cover scene composition, timing, audio, sound effects, transitions, visual hierarchy, and storytelling flow. Output maps directly to Remotion Sequence components, useCurrentFrame(), spring(), and interpolate() patterns via the remotion-best-practices skill for implementation.

  • Produces scene-by-scene Remotion-oriented specs with visual hierarchy and narrative intent per frame
  • Defines frame-accurate timing, pacing, and transition design between scenes
  • Recommends background music mood and energy plus placed sound effects with exact timing
  • Applies motion-graphics storytelling: rhythm, emotional resonance, and After Effects–style craft
  • Triggers on create-a-video, motion-graphics planning, and spec-out-a-video requests

Motion Designer by the numbers

  • 433 all-time installs (skills.sh)
  • +9 installs in the week ending Jul 26, 2026 (Skillselion tracking)
  • Ranked #421 of 1,337 Generative Media skills by installs in the Skillselion catalog
  • Security screen: MEDIUM risk (skills.sh audit)
  • Data as of Jul 31, 2026 (Skillselion catalog sync)
npx skills add https://github.com/ncklrs/startup-os-skills --skill motion-designer

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Listed on Skillselion
Installs433
repo stars37
Security audit3 / 3 scanners passed
Last updatedFebruary 26, 2026
Repositoryncklrs/startup-os-skills

How do you spec a Remotion video before coding?

Turn a vague video idea into a Remotion-ready scene-by-scene spec with timing, audio, and motion before anyone writes React composition code.

Who is it for?

Frontend developers and motion designers planning Remotion marketing videos, explainers, or product demos who need detailed specs before React implementation.

Skip if: Developers who need finished rendered video files immediately without a specification phase or teams not using Remotion React compositions.

When should I use this skill?

A developer asks to create a video, design motion graphics, plan video content, or spec out a Remotion animation before implementation.

What you get

Scene-by-scene video specification documents with frame timing, audio strategy, SFX placement, transition notes, and Remotion technical parameters.

  • Scene-by-scene video specs
  • Audio and SFX timing sheets
  • Remotion technical parameters

By the numbers

  • Applies 12 Disney animation principles to video specifications
  • Includes 7 rules reference files for composition, timing, audio, and transitions
  • Defines 6 common video type templates from 1-3s micro-interactions to 2-5min tutorials

Files

SKILL.mdMarkdownGitHub ↗

Motion Designer

Expert motion design guidance for creating compelling, engaging videos. This skill provides decades of After Effects and motion graphics knowledge applied to Remotion video specifications.

Philosophy

Great motion design combines three elements:

1. Visual storytelling — Every frame serves the narrative 2. Rhythmic timing — Motion follows natural rhythms and music beats 3. Emotional resonance — Design choices evoke intended feelings

How This Skill Works

When invoked, this skill guides you through creating detailed video specifications that include:

  • Scene-by-scene breakdowns — Complete description of every visual element
  • Timing and pacing — Precise frame timing for all animations and transitions
  • Audio strategy — Background music recommendations with mood and energy level
  • Sound effect placement — Specific SFX with exact timing and purpose
  • Transition design — How scenes connect and flow
  • Visual hierarchy — What viewers should focus on at each moment

The output is a comprehensive specification document that works seamlessly with /remotion-best-practices for implementation.

Core Frameworks

The 12 Principles of Animation (Disney)

1. Squash and Stretch — Gives weight and flexibility 2. Anticipation — Prepares the audience for action 3. Staging — Directs attention to most important elements 4. Straight Ahead vs Pose-to-Pose — Two animation approaches 5. Follow Through and Overlapping Action — Natural motion continues 6. Slow In and Slow Out — Easing creates realistic movement 7. Arcs — Natural movement follows curved paths 8. Secondary Action — Supporting details add life 9. Timing — Speed creates personality and mood 10. Exaggeration — Pushes reality for impact 11. Solid Drawing — Three-dimensional forms 12. Appeal — Design is engaging and pleasing

Motion Design Arc

Every engaging video follows an emotional arc:

Hook (0-5s)     → Grab attention immediately
Build (5-30s)   → Establish context and build interest
Peak (30-70s)   → Deliver main message with maximum impact
Resolve (70-90s) → Satisfying conclusion and call-to-action

Audio Design Layers

Professional motion graphics use layered audio:

1. Background Music — Sets mood and energy (40-60% volume) 2. Sound Effects — Emphasizes actions and transitions (60-80% volume) 3. Ambient Texture — Subtle background presence (20-30% volume) 4. Voiceover/Dialog — If applicable (80-100% volume)

Timing Theory

Motion graphics timing follows natural rhythms:

  • 24-30 FPS — Standard video frame rates
  • 2-frame rule — Minimum duration for something to register
  • 0.3s (9 frames) — Minimum for comfortable reading
  • 0.5s (15 frames) — Sweet spot for UI micro-interactions
  • 1-2s — Comfortable transition duration
  • 3-5s — Scene duration for complex information
  • 8-12s — Maximum attention span without change

Video Specification Format

When creating a video spec, use this structure:

1. Overview

  • Title — Clear, descriptive name
  • Duration — Total length in seconds
  • Dimensions — Width x height (typically 1920x1080)
  • Frame Rate — 30 fps (standard)
  • Style — Visual aesthetic description
  • Mood — Emotional tone

2. Audio Strategy

  • Background Music
  • Style/genre
  • Mood and energy level
  • Key moments to sync with
  • Volume envelope (fades, ducks)
  • Sound Effects
  • List of all SFX needed
  • Timing for each (in seconds)
  • Purpose of each effect

3. Scene Breakdown

For each scene, specify:

## Scene N: [Name] (Xs - Ys, Duration: Zs)

**Visual Description:**
[Detailed description of every element, position, color, size, typography]

**Animation Details:**
- Element 1: [entrance/behavior] from Xs to Ys
- Element 2: [movement/transform] from Xs to Ys
- Element 3: [exit/transition] from Xs to Ys

**Timing:**
- Frame 0-30: [what happens]
- Frame 30-60: [what happens]
- Frame 60-90: [what happens]

**Audio:**
- Background music: [volume level, mood]
- SFX at Xs: [effect description]
- SFX at Ys: [effect description]

**Transitions:**
[How this scene transitions to the next]

**Focus Points:**
[What should draw viewer attention]

4. Technical Specifications

Include Remotion-specific guidance:

  • Composition dimensions and FPS
  • Color palette (hex codes)
  • Typography (fonts, sizes, weights)
  • Animation types (spring, interpolate, easing)
  • Spring configurations for different effects
  • Asset requirements (images, icons, etc.)

Integration with Remotion Best Practices

This skill produces specifications that map directly to Remotion implementation:

  • Scene descriptions → Remotion <Sequence> components
  • Timing details → Frame-based animation with useCurrentFrame()
  • Animation detailsspring() and interpolate() configurations
  • Audio placements<Audio> components with timing
  • Transitions → Transition patterns from remotion-best-practices

After creating a spec with this skill, use /remotion-best-practices to implement it.

Common Video Types

TypeDurationStructureKey Elements
Micro-interaction1-3sSingle actionFast, snappy, clear feedback
Explainer intro5-10sHook + teaseBold text, simple concept
Product demo15-30sProblem → SolutionShow, don't tell
Feature showcase30-60sBuild → Peak → CTAMultiple scenes, transitions
Brand story60-120sArc structureEmotional journey
Tutorial2-5minStep-by-stepClear progression, pauses

Sound Effect Categories

UI/Interaction

  • Whoosh — Transitions, reveals
  • Pop — Buttons, checkmarks, success
  • Click — Selections, interactions
  • Swoosh — Fast movements, swipes

Emphasis

  • Impact — Important moments, reveals
  • Boom — Big reveals, launches
  • Ding — Achievements, completions
  • Chime — Notifications, alerts

Ambient

  • Hum — Background technology feel
  • Texture — Subtle atmosphere
  • Riser — Building anticipation
  • Reverb tail — Spacious, dramatic

Anti-Patterns

  • Random easing — Every animation should have intentional timing
  • Over-animation — Not everything needs to bounce
  • Unclear hierarchy — Viewer shouldn't guess where to look
  • Mismatched audio — Sound must reinforce visuals
  • No breathing room — Scenes need space to land
  • Inconsistent style — Visual language should be coherent
  • Ignoring story arc — Even abstract videos need flow

Quality Checklist

Before finalizing a video spec:

  • [ ] Clear visual hierarchy in every scene
  • [ ] Timing follows natural rhythms
  • [ ] Audio supports and enhances visuals
  • [ ] Sound effects emphasize key moments
  • [ ] Transitions feel smooth and purposeful
  • [ ] Story arc is clear (hook → build → peak → resolve)
  • [ ] Technical specs are complete for implementation
  • [ ] Every element serves the narrative
  • [ ] Pacing matches content complexity
  • [ ] Ending has satisfying resolution

Expert Tips

Timing

  • Action should land on music beats when possible
  • Use the "rule of thirds" for timing: 1/3 anticipation, 1/3 action, 1/3 follow-through
  • Vary timing to create rhythm (avoid mechanical repetition)

Visual Design

  • Use contrast to guide attention (color, size, motion)
  • Limit palette to 3-5 colors for cohesion
  • Typography hierarchy: headline → subhead → body
  • White space is a design element, not empty space

Audio Design

  • Duck background music when SFX play (-6dB to -12dB)
  • Layer 2-3 SFX for rich, full sound
  • Use silence strategically for impact
  • Fade in/out music, don't hard cut

Animation

  • Spring animations feel natural (damping: 200 for smooth, 20 for bouncy)
  • Use easing for mechanical UI elements
  • Group animations: stagger by 5-10 frames for flow
  • Exit animations should be faster than entrances (3:2 ratio)

When to Consult Rules

For detailed guidance on specific aspects:

  • rules/scene-composition.md — Visual hierarchy and staging
  • rules/timing-pacing.md — Frame timing and rhythm
  • rules/audio-design.md — Music and audio strategy
  • rules/sound-effects.md — SFX selection and placement
  • rules/transitions.md — Scene transitions and flow
  • rules/visual-hierarchy.md — Directing attention
  • rules/storytelling-flow.md — Narrative structure
  • rules/camera-movement.md — Virtual camera techniques

Related skills

How it compares

Pick motion-designer over remotion-best-practices when you need a creative scene-by-scene spec first; use remotion-best-practices for the React implementation pass.

FAQ

What does motion-designer output?

motion-designer outputs detailed video specification documents with scene breakdowns, frame-level timing, background music strategy, sound effect placements, transition design, color palettes, typography, and Remotion-specific spring and interpolate guidance before any React code

How does motion-designer connect to Remotion?

motion-designer maps scene descriptions to Remotion Sequence components, useCurrentFrame() timing, spring() and interpolate() animations, and Audio components. After spec completion, developers implement with the remotion-best-practices skill.

Is Motion Designer safe to install?

skills.sh reports 3 of 3 security scanners passed. Review the Security Audits panel on this page before installing in production.

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