SkillsLib.ai

After Effects Motion Sequence Planner

Turn creative briefs into production-ready After Effects specs

0.0(0 reviews)
100+ downloads
Updated Nov 2026

What You Can Do

Convert creative direction and animation briefs into detailed technical specifications—including keyframe timing, expression code, and layer architectures. You get animation specs organized by scene, pre-composition strategies, and ready-to-implement After Effects workflows that cut your setup time in half.

Features

Animation timeline specification

Convert narrative briefs to frame-accurate timing, keyframe positions, and easing curves

After Effects expression code

Generate JavaScript expressions for loops, conditions, and dynamic layer behavior

Layer hierarchy planning

Create organized naming schemes, pre-composition strategies, and folder structures

Visual effect stack design

Recommend effect chains, plugin sequences, and adjustment layer placement

Motion preview documentation

Write descriptive specs that communicate intended motion to team members

Asset organization workflow

Define import specs, file naming conventions, and asset folder structures

Keyframe reference tables

Generate timing maps with frame numbers, durations, and easing functions

Project template scaffolding

Build reusable project structures for recurring animation types

Example Output

Animation Spec Example:

code
Scene 1: Logo Entrance (0:00-1:15)
- Logo scale: 0% → 100% (frames 0-30, ease: cubic out)
- Logo position: center -200px → center (frames 15-45, delay start)
- Glow effect opacity: 0% → 50% (frames 20-50)

Expressions needed:
- Wiggle loop on rotation (frequency: 2, amplitude: 5°)
- Link scale to audio level via expression

Layer Structure:

code
Composition: Main_Sequence
├─ Adjustment Layers
│  ├─ Color_Correction
│  └─ Motion_Blur
├─ Hero Assets
│  ├─ Logo [pre-comp]
│  └─ Text [pre-comp]
└─ Effects
   └─ Particle_System

What's Included

  • SKILL.md: Complete skill instructions with animation spec frameworks
  • Animation Specification Template: Structured format for scene-by-scene breakdown
  • After Effects Expression Library: Common expressions (loops, audio sync, nulls, parent constraints)
  • Layer Naming Convention Guide: Standardized naming for quick identification
  • Keyframe Timing Reference: Frame-to-duration conversion chart and easing function guide
  • Pre-Composition Checklist: Decision tree for when and how to organize into nested comps
  • Project Architecture Worksheet: Template for planning folder structure before opening AE
  • Expression Code Snippets: Copy-paste ready code for rotation loops, scale animations, and conditional effects

Who It's For

  • Motion Graphics Designers — Plan complex sequences before building in After Effects
  • Animators — Convert director notes into shot-by-shot animation specs
  • Creative Directors — Communicate visual intent to production teams with detailed specs
  • VFX Supervisors — Define effect hierarchies and expression strategies for team execution
  • Production Coordinators — Hand off pre-visualization specs to animation departments

Best For

  • Planning animation sequences — Break down 30-second spots or title sequences into actionable specs
  • Translating creative briefs — Convert vague direction into frame-accurate timing and motion descriptions
  • Generating expression code — Create JavaScript expressions for dynamic behavior without manual coding
  • Organizing complex projects — Design layer hierarchies and pre-composition strategies before production
  • Documenting motion intent — Write specs that hand off clearly to other artists or future revisions

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