How does this skill handle Slack's 64KB emoji limit?

The toolkit includes a specialized 'optimize_for_emoji' mode that uses aggressive color quantization, limits frame counts to 10-15, and removes redundant data to ensure the file stays under the strict 64KB limit.

Can I combine different animation effects?

Yes, the animation primitives are fully composable. You can layer multiple effects, such as a bounce motion combined with a shake on impact, by manipulating frames within the GIFBuilder.

What kind of visual effects are supported?

The skill supports a wide range of effects including particles, flashes, shockwaves, kaleidoscope patterns, and various easing functions for smooth, professional motion.

Does it support text rendering for emojis?

Yes, it includes a typography helper that draws text with outlines, which is essential for maintaining readability on the small 128x128 canvas used by Slack emojis.

Slack GIF Creator

Name: Slack GIF Creator
Author: ev3rlit

byev3rlit

设计工具

Generates and optimizes animated GIFs and custom emojis specifically tailored for Slack's strict file size and dimension requirements.

关于

The Slack GIF Creator skill is a comprehensive toolkit for programmatically generating high-quality animations within Claude Code. It addresses the technical challenges of Slack's upload limits, particularly the strict 64KB requirement for emojis, through intelligent color quantization and frame optimization. With a vast library of composable animation primitives—ranging from simple bounces and spins to complex particle explosions and kaleidoscope effects—it enables users to transform text descriptions into production-ready assets for team communication.

主要功能

Support for complex motion paths including arcs, waves, and circular easing
0 GitHub stars
Strict validation for Slack's 64KB emoji and 2MB message size limits
Library of 15+ animation primitives including Shake, Explode, and Morph
Advanced color quantization and duplicate frame removal for optimization
High-readability text rendering with customizable outlines and scales

使用场景

Designing high-impact reaction GIFs with physics-based motion effects
Generating custom animated emojis from text descriptions like 'excited party parrot'
Creating automated status update GIFs for CI/CD or project milestones

关于

主要功能

Support for complex motion paths including arcs, waves, and circular easing
0 GitHub stars
Strict validation for Slack's 64KB emoji and 2MB message size limits
Library of 15+ animation primitives including Shake, Explode, and Morph
Advanced color quantization and duplicate frame removal for optimization
High-readability text rendering with customizable outlines and scales

使用场景

Designing high-impact reaction GIFs with physics-based motion effects
Generating custom animated emojis from text descriptions like 'excited party parrot'
Creating automated status update GIFs for CI/CD or project milestones