What types of animation effects can I generate?

You can create a wide range of effects including pulsing, shaking, bouncing, rotating, fading, and even complex particle explosions.

Does this skill require external image assets?

No, it can draw graphics from scratch using PIL primitives, but it also supports using user-uploaded images as a base for animations.

How does it handle Slack's file size limits?

The skill includes optimization strategies like reducing color palettes (48-128 colors), lowering FPS, and removing duplicate frames to minimize file size.

What are the optimal dimensions for Slack GIFs created with this skill?

For custom Slack emojis, the skill recommends 128x128 pixels. For standard message GIFs, it uses 480x480 pixels.

Slack GIF Creator

Name: Slack GIF Creator
Author: boku-miyaji

byboku-miyaji

0•

Design Tools

Generates and optimizes animated GIFs tailored for Slack emojis and message attachments using advanced animation utilities.

The Slack GIF Creator skill provides a specialized toolkit for building high-quality, Slack-optimized animations directly within the Claude environment. It bridges the gap between raw programmatic drawing and platform-specific requirements, offering built-in knowledge of Slack's dimension and file size constraints. Whether creating custom team emojis from scratch using PIL primitives or animating user-uploaded assets, this skill handles the heavy lifting of frame assembly, easing functions for smooth motion, and strict optimization to ensure every GIF is ready for immediate upload to Slack.

Key Features

010 GitHub stars

02Slack-specific validation for emoji (128x128) and message (480x480) formats

03Pre-defined animation patterns like pulsing, shaking, spinning, and particle bursts

04Automated optimization strategies including color reduction and duplicate frame removal

05Comprehensive drawing toolkit for stars, polygons, gradients, and complex shapes

06Advanced easing library for bounce, elastic, and smooth motion effects

Use Cases

01Creating custom animated Slack emojis from simple text descriptions

02Generating dynamic progress or status-tracking GIFs for team channels

03Transforming static logos or brand assets into optimized Slack animations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add boku-miyaji/claude_dev slack-gif-creator

For use in Claude.ai and ChatGPT

Download Skill