After Effects Expression & Script Development
Write complex After Effects expressions and scripts
What You Can Do
You can generate, debug, and optimize After Effects expressions and scripts that automate animations, create complex motion effects, and extend AE functionality. Claude helps you write production-ready expressions from scratch, troubleshoot failing scripts, and master AE's expression language to solve motion graphics challenges faster.
Features
from simple ease-and-wheel to position tracks, scale animations, and dynamic parenting logic
identify syntax errors, logic bugs, and performance issues with step-by-step explanations
create ExtendScript (.jsx) files to batch-process compositions, organize layers, or export sequences
refactor slow expressions to reduce render time without sacrificing visual quality
understand how time, thisLayer, valueAtTime, and other AE functions work in your expressions
access pre-built expressions for common tasks: counter text, wave distortion, camera rig automation, staggered animations
ensure your expressions use correct JavaScript and AE's ExtendScript dialect
Example Output
Expression Example:
// Wiggle animation with easing
freq = 3; // frequency in Hz
amp = 50; // amplitude in pixels
wiggle(freq, amp)
Script Example:
// Change selected layers' opacity to 75%
var comp = app.project.activeItem;
for (var i = 1; i <= comp.selectedLayers.length; i++) {
comp.selectedLayers[i-1].opacity.setValue(75);
}
Common Pattern: Linear expression for counting animation frames with text layer — Claude provides full working example with composition markers.
What's Included
- SKILL.md: Complete After Effects expression and scripting reference
- Expression Template Library: 15+ ready-to-use expressions for common tasks (wiggle, counter, offset, easing)
- Script Templates: Batch operations, layer organization, export automation
- Debugging Checklist: Common expression errors and solutions
- ExtendScript Best Practices: Performance tips, error handling patterns
- Time-Based Animation Guide: Working with frameRate, time, and timecode
- Function Reference: AE expression and script functions with examples
Who It's For
- Motion graphics designers — automate keyframe generation and complex animations
- VFX artists — script repetitive compositing tasks and create dynamic effects
- Video editors — batch-process footage and automate layer workflows
- Animators — build procedural animations with expressions instead of manual keyframes
- Technical directors — extend AE with custom ExtendScript automation
Best For
- Writing and debugging expressions that move text, shapes, and cameras
- Creating automation scripts to batch-process compositions or export sequences
- Optimizing slow expressions that cause render bottlenecks
- Generating procedural animations without manual keyframing
- Troubleshooting expression errors and logic problems with detailed explanations
You might also like
Convert raw news wire copy and story notes into polished, anchor-ready scripts with proper pacing, vocal tone guidance, and delivery cues. You get timing estimates, emphasis markers, pronunciation guides, and transition language that keeps listeners engaged and maintains your station's voice throughout every segment.
by majiayu000
Generate polished broadcast scripts from talking points, verify facts against sports data in real time, and prepare anchors with comprehensive interview prep including player history and context. You'll produce show-ready scripts with proper pacing, tone optimization for on-air delivery, and talking points for live ad-libs.
by majiayu000
You'll learn to structure mobile apps using Expo Router's file-based routing system, implement native iOS controls like tabs, switches, and pickers, create smooth animations with Reanimated, and apply advanced styling with blur effects, gradients, and glassmorphism. This skill covers everything from routing fundamentals to production-ready patterns for building polished, performant applications.
by majiayu000
You can generate production-ready ExtendScript code to automate batch Photoshop workflows, process hundreds of assets with consistent results, and build custom image processing pipelines. Claude helps you debug complex scripts, optimize for performance, and solve asset management challenges without requiring deep ExtendScript expertise.
by majiayu000
You create professional video scripts for digital news segments that balance journalistic integrity with audience engagement. The skill generates platform-specific content tailored to TikTok, YouTube, LinkedIn, or broadcast formats, complete with timing cues, B-roll suggestions, and retention hooks. Each script maintains editorial standards while maximizing viewer completion rates and social sharing potential.
by majiayu000
Transform raw news copy into professional radio scripts formatted for on-air delivery with precision timing, strategic pause and emphasis cues, and spontaneous ad-lib prompts. You get industry-standard formatting that anchors can read confidently under studio pressure while sounding natural and engaging. Every script fits your broadcast window exactly, with built-in coaching notes to elevate anchor performance.
by majiayu000
Debug, optimize, and troubleshoot Blender Python scripts, add-ons, and automation workflows with precision. This skill analyzes error messages, suggests performance improvements, and provides API best practices to help you build robust Blender tools and custom workflows.
by majiayu000
You generate production-ready design briefs from client requirements, automatically check dozens of designs for brand consistency violations, and orchestrate batch workflows with approval checkpoints. This skill ensures every design aligns with your brand guidelines while accelerating your design approval cycle by weeks.
by majiayu000