How does this skill optimize GIF file sizes?

It implements color reduction (limiting to 48-128 colors), duplicate frame removal, and FPS adjustments to keep file sizes low enough for Slack's upload limits.

Can I animate my own uploaded images?

Absolutely. You can use PIL to load your own images as frames, and use the skill's GIFBuilder to assemble, resize, and optimize them into a final Slack-ready GIF.

What Python dependencies are required?

The skill requires the Pillow (PIL), imageio, and numpy packages to handle advanced image processing, mathematical calculations, and GIF encoding.

Does it support non-linear animations?

Yes, it includes a variety of easing functions such as ease_in, ease_out, bounce_out, and elastic_out to create professional, fluid motion instead of basic linear movement.

What are the recommended dimensions for Slack emojis?

Slack emojis are best optimized at 128x128 pixels. This skill defaults to those dimensions and provides built-in validation to ensure they meet Slack's requirements.

Slack GIF Creator

Name: Slack GIF Creator
Author: xiaxingxiaowei1983

byxiaxingxiaowei1983

0•

デザインツール

Generates and optimizes animated GIFs specifically tailored for Slack emojis and messages using Python-based drawing and easing utilities.

The Slack GIF Creator skill provides a comprehensive toolkit for building high-quality, lightweight animated GIFs within the Claude Code environment. It includes specialized utilities for frame composition, physics-based easing functions (like bounce and elastic motion), and strict validation tools to ensure compatibility with Slack's unique file size and dimension constraints. Whether you are creating custom emojis from scratch using PIL primitives or animating uploaded assets, this skill automates the technical complexities of GIF production and optimization for seamless team communication.

主な機能

01Built-in easing library including bounce, elastic, and cubic interpolation for smooth motion.

02Specialized GIFBuilder for Slack-optimized frame assembly and color reduction.

03Frame composer helpers for drawing gradients, stars, and complex polygons from scratch.

04Advanced optimization strategies to minimize file size while maintaining visual clarity.

050 GitHub stars

06Automated validation tools to verify GIF compliance with Slack emoji and message specs.

ユースケース

01Creating instructional message-based GIFs (480x480) for team documentation or software demos.

02Designing custom, high-polish animated Slack emojis (128x128) from text or vector-style shapes.

03Automating the animation of brand assets or user-uploaded images for internal Slack communications.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add xiaxingxiaowei1983/ai slack-gif-creator

For use in Claude.ai and ChatGPT

主な機能

01Built-in easing library including bounce, elastic, and cubic interpolation for smooth motion.

02Specialized GIFBuilder for Slack-optimized frame assembly and color reduction.

03Frame composer helpers for drawing gradients, stars, and complex polygons from scratch.

04Advanced optimization strategies to minimize file size while maintaining visual clarity.

050 GitHub stars

06Automated validation tools to verify GIF compliance with Slack emoji and message specs.

ユースケース

01Creating instructional message-based GIFs (480x480) for team documentation or software demos.

02Designing custom, high-polish animated Slack emojis (128x128) from text or vector-style shapes.

03Automating the animation of brand assets or user-uploaded images for internal Slack communications.