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

The skill uses an 'Emoji Mode' in its GIFBuilder that applies aggressive color quantization (32-48 colors), limits frame counts, and simplifies designs to ensure the final file meets Slack's strict 64KB requirement.

What is the recommended size for a Slack message GIF versus an emoji?

For messages, the toolkit targets 480x480 pixels under 2MB. For emojis, it enforces a strict 128x128 pixel dimension and a sub-64KB file size for successful uploading.

Does this skill require external image processing libraries?

The skill is designed to work within a Python environment, typically utilizing PIL (Pillow) for frame rendering and its own internal logic for animation and Slack validation.

Can I layer multiple animations together?

Yes, the animation primitives are composable. You can combine building blocks like 'bounce' and 'shake' or 'rotate' and 'pulse' to create complex, custom motion paths for your objects.

Slack GIF Creator

Name: Slack GIF Creator
Author: frostant

byfrostant

•

Design Tools

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

The Slack GIF Creator is a comprehensive toolkit designed to help Claude build production-ready animations for Slack workspaces. It addresses the technical challenges of Slack's strict 64KB emoji limit and 2MB message limit by providing specialized validators, color quantization tools, and a library of composable animation primitives. Whether you need a simple bouncing emoji or a complex kaleidoscopic message GIF, this skill provides the building blocks to create, optimize, and validate assets for seamless Slack integration.

Key Features

01Composable animation primitives including shake, bounce, morph, and kaleidoscope

02Aggressive 64KB optimization engine specifically for custom Slack emoji

03Integrated particle systems and visual impact effects like flashes and shockwaves

04Typography helpers with outlines for high-readability text in small formats

05Strict Slack-specific validators for file size, dimensions, and FPS constraints

061 GitHub stars

Use Cases

01Automating the generation of status-indicator emojis with specific motion patterns

02Creating custom branded Slack emoji reactions that meet the 64KB upload limit

03Building high-impact animated announcement GIFs for internal team communication

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add frostant/awesome-claude-skills slack-gif-creator

For use in Claude.ai and ChatGPT

Download Skill