What are the recommended dimensions for Slack GIFs?

For custom emojis, 128x128 pixels is recommended. For standard message GIFs, 480x480 pixels is the ideal size.

What kind of animation effects are supported?

The skill supports a wide range of effects including shakes, pulses, bounces, rotations, fades, zooms, and complex particle bursts using built-in easing functions.

How does the skill handle GIF optimization?

It optimizes file size by adjusting FPS (typically 10-30), reducing the color palette to between 48 and 128 colors, and removing duplicate frames during the save process.

Can I use external images with this skill?

Yes, the skill can load user-uploaded images using PIL (Pillow), allowing you to animate existing assets or use them as frames within a larger sequence.

Slack GIF Creator

Name: Slack GIF Creator
Author: anthropics

byanthropics

•

24,065

协作工具

Generates professional, Slack-optimized animated GIFs and emojis using Python-based animation primitives and easing functions.

关于

The Slack GIF Creator skill provides Claude with a comprehensive toolkit for designing, animating, and optimizing GIFs specifically for the Slack environment. It manages technical constraints like specific dimensions (128x128 for emojis), color depth, and frame rates to ensure compatibility and fast loading. With built-in support for easing functions, frame composition, and image processing via PIL, it allows for the creation of sophisticated animations ranging from simple pulsing icons to complex particle bursts and UI-driven motion graphics.

主要功能

Advanced easing library including bounce, elastic, and cubic bezier curves for smooth motion
Slack-specific optimization for both custom emojis and inline message GIFs
24,065 GitHub stars
Automated validation tools to ensure GIFs meet platform size and performance requirements
Dynamic frame composition using PIL primitives for high-quality vector-like rendering
Efficient file size management through color palette reduction and duplicate frame removal

使用场景

Transforming static user-uploaded logos into dynamic, eye-catching reactions
Creating custom branded animated emojis for team workspace culture
Generating animated progress indicators or status alerts for Slack integrations

关于

主要功能

Advanced easing library including bounce, elastic, and cubic bezier curves for smooth motion
Slack-specific optimization for both custom emojis and inline message GIFs
24,065 GitHub stars
Automated validation tools to ensure GIFs meet platform size and performance requirements
Dynamic frame composition using PIL primitives for high-quality vector-like rendering
Efficient file size management through color palette reduction and duplicate frame removal

使用场景

Transforming static user-uploaded logos into dynamic, eye-catching reactions
Creating custom branded animated emojis for team workspace culture
Generating animated progress indicators or status alerts for Slack integrations