Does it provide feedback if a GIF is too large?

Yes, the built-in validators automatically check dimensions and file sizes, warning you if a GIF exceeds Slack's message or emoji constraints before you finish.

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

It employs aggressive optimization strategies including reducing the color palette to 32-48 colors, limiting frame counts to 10-15, and using automated size validators to ensure compliance.

Can I combine multiple animations for a single GIF?

Yes, the animation primitives are designed to be composable. You can easily layer effects, such as applying a shake on impact during a bounce animation.

Is text readability maintained in small emoji sizes?

The toolkit includes specialized typography helpers that add outlines to text, significantly improving legibility at the 128x128 resolution used by Slack emojis.

What animation effects are available in the toolkit?

The skill provides a wide range of primitives including shake, bounce, spin, pulse, fade, zoom, explode, wiggle, slide, flip, morph, and kaleidoscope effects.

Slack GIF Creator

Name: Slack GIF Creator
Author: Microck

byMicrock

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Design Tools

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

The Slack GIF Creator skill is a specialized toolkit designed to help developers create high-quality, lightweight animations directly within their workflow. It solves the common frustration of Slack's rigid file requirements—especially the difficult 64KB limit for custom emojis—by providing automated validators, aggressive color optimization, and a library of composable animation primitives. From simple shakes and bounces to complex particle effects and kaleidoscopes, this skill allows for programmatic creation of Slack-ready assets that look professional and load instantly.

Key Features

01Library of composable animation primitives including Shake, Bounce, Zoom, and Morph

0281 GitHub stars

03Advanced visual effects including particle systems, flashes, and mirror modes

04High-readability typography helpers with outlines for small-scale text

05Strict validation for Slack's 2MB message and 64KB emoji size limits

06Aggressive color quantization and frame optimization for small file sizes

Use Cases

01Creating optimized technical demo GIFs for Slack channel updates

02Generating custom animated reaction emojis from text descriptions

03Automating the production of branded Slack emoji packs for organizations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add microck/ordinary-claude-skills slack-gif-creator

For use in Claude.ai and ChatGPT

Download Skill