Do I need external design software to use this?

No, the skill provides programmatic tools for drawing shapes, rendering text, and managing animation frames directly within the Claude Code environment.

How does it ensure my GIF won't be rejected by Slack?

It features built-in validators that check dimensions, total file size, and duration against Slack’s known platform requirements before you complete the generation process.

Does this skill handle Slack's strict 64KB emoji limit?

Yes, it includes specialized optimization strategies, such as color reduction and frame limiting, specifically designed to compress animations under the 64KB limit for Slack emojis.

Can I combine different animation effects?

Absolutely. The skill uses composable primitives, allowing you to layer multiple effects—like combining a 'bounce' with a 'shake'—to create complex, custom movements.

What file format does this skill output?

The skill focuses on creating high-quality, optimized .gif files that meet Slack's specific dimension and color depth requirements for both messages and custom emojis.

Slack GIF Creator

Name: Slack GIF Creator
Author: Microck

byMicrock

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デザインツール

Generates and optimizes animated GIFs and custom emoji for Slack with built-in validation for platform constraints.

概要

The Slack GIF Creator is a specialized Claude Code Skill designed to streamline the production of animated assets specifically tailored for Slack environments. It provides a comprehensive suite of composable animation primitives—such as shakes, bounces, and kaleidoscopes—alongside rigorous validation tools that ensure files adhere to Slack’s strict size limits, including the challenging 64KB limit for custom emojis. By automating the complex balance of color quantization, frame rate management, and dimension scaling, this skill enables developers to programmatically create high-quality, expressive animations that are guaranteed to work in Slack right out of the box.

主な機能

Aggressive optimization tools for the strict 64KB Slack emoji file size limit
81 GitHub stars
Platform-specific validation for Slack message and emoji GIF constraints
Library of composable animation primitives including bounce, shake, morph, and zoom
Enhanced typography rendering with outlines for readability on small-scale icons
Pre-configured color palettes and visual effect systems like particles and flashes

ユースケース

Designing optimized reaction GIFs that stay under Slack's 2MB message upload limit
Creating custom animated Slack emojis from simple text descriptions or emoji base layers
Programmatically generating brand-aligned Slack assets using consistent color palettes

概要

主な機能

Aggressive optimization tools for the strict 64KB Slack emoji file size limit
81 GitHub stars
Platform-specific validation for Slack message and emoji GIF constraints
Library of composable animation primitives including bounce, shake, morph, and zoom
Enhanced typography rendering with outlines for readability on small-scale icons
Pre-configured color palettes and visual effect systems like particles and flashes

ユースケース

Designing optimized reaction GIFs that stay under Slack's 2MB message upload limit
Creating custom animated Slack emojis from simple text descriptions or emoji base layers
Programmatically generating brand-aligned Slack assets using consistent color palettes