Does it support text rendering in small GIFs?

Yes, it includes a typography helper specifically designed for small scales, adding outlines and using optimized scaling to ensure text remains legible in 128x128 emoji formats.

What formats are supported for the base images?

The toolkit works with common image objects and emoji data, allowing you to build frames from scratch or manipulate existing visual assets before compiling them into a GIF.

Can I combine different animation effects like bounce and spin?

Yes, the animation primitives are designed to be composable. You can apply multiple transformations—such as moving an object while it pulses—to create complex creative visions.

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

The skill employs aggressive optimization strategies, including limiting color palettes to 32-48 colors, reducing frame counts, and providing a real-time validator to ensure the final file is under the strict limit.

Slack GIF Creator

Name: Slack GIF Creator
Author: bkootaz

bybkootaz

0•

设计工具

Generates and optimizes animated GIFs and custom emoji specifically tailored for Slack's unique file size and dimension constraints.

The Slack GIF Creator is a specialized toolkit designed to help developers and designers build high-quality, lightweight animations for Slack environments. It provides a library of composable animation primitives—such as shakes, bounces, and morphs—alongside strict validation tools to ensure content meets Slack's 64KB emoji limit or 2MB message limit. Whether you are creating reactive emojis or informational message GIFs, this skill streamlines the process of rendering, optimizing color palettes, and validating file sizes to ensure seamless uploads every time.

主要功能

01Automatic validation for Slack's message (2MB) and emoji (64KB) size constraints

02Composable animation primitives including Shake, Bounce, Spin, Morph, and Kaleidoscope effects

03Specialized typography tools with high-contrast outlines for readability at small resolutions

040 GitHub stars

05Integrated GIF builder for frame assembly, duplicate frame removal, and size estimation

06Aggressive color quantization and optimization specifically for small-scale emoji GIFs

使用场景

01Creating custom animated reaction emojis that meet the strict 64KB Slack upload limit

02Generating feature announcement or 'how-to' GIFs optimized for Slack channel dimensions

03Automating the creation of branded 'success' or 'alert' animations for team notification bots

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bkootaz/https-github.com-anthropics-skills slack-gif-creator

For use in Claude.ai and ChatGPT

主要功能

01Automatic validation for Slack's message (2MB) and emoji (64KB) size constraints

02Composable animation primitives including Shake, Bounce, Spin, Morph, and Kaleidoscope effects

03Specialized typography tools with high-contrast outlines for readability at small resolutions

040 GitHub stars

05Integrated GIF builder for frame assembly, duplicate frame removal, and size estimation

06Aggressive color quantization and optimization specifically for small-scale emoji GIFs

使用场景

01Creating custom animated reaction emojis that meet the strict 64KB Slack upload limit

02Generating feature announcement or 'how-to' GIFs optimized for Slack channel dimensions

03Automating the creation of branded 'success' or 'alert' animations for team notification bots

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add bkootaz/https-github.com-anthropics-skills slack-gif-creator

For use in Claude.ai and ChatGPT