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

0•

设计工具

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

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

01Support for complex motion paths including arcs, waves, and circular easing

020 GitHub stars

03Strict validation for Slack's 64KB emoji and 2MB message size limits

04Library of 15+ animation primitives including Shake, Explode, and Morph

05Advanced color quantization and duplicate frame removal for optimization

06High-readability text rendering with customizable outlines and scales

使用场景

01Designing high-impact reaction GIFs with physics-based motion effects

02Generating custom animated emojis from text descriptions like 'excited party parrot'

03Creating automated status update GIFs for CI/CD or project milestones

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add ev3rlit/doodle slack-gif-creator

For use in Claude.ai and ChatGPT

Download Skill