Slack Gif Creator

Creates animated GIFs that meet Slack's specific requirements for custom emoji and message animations. Gives you a GIFBuilder class, easing functions for smooth motion, and validators to check if your output will actually work in Slack before you upload it. The approach is flexible: you draw frames using PIL primitives (circles, polygons, gradients) and the skill handles optimization with color reduction and duplicate frame removal. Includes recipes for common animation patterns like bounce, pulse, and particle bursts. Honestly most useful for the Slack dimension constraints and the easing functions, since raw PIL animations tend to look pretty janky without interpolation.

Install to Claude Code

npx -y skills add aiskillstore/marketplace --skill slack-gif-creator --agent claude-code