Slack Gif Creator

Need to generate animated GIFs that actually work in Slack? This gives you a GIFBuilder class, easing functions for smooth motion, and validators to check Slack's specific requirements (128x128 for emoji, certain color limits). You draw frames with PIL primitives like ellipses and polygons, then the toolkit handles optimization. The docs are solid on animation concepts like bounce, pulse, and particle bursts, plus it pushes you to make things look polished with thick lines and gradients instead of basic shapes. It's not a template library, more like guardrails and utilities so you don't have to remember Slack's quirks while coding frame-by-frame animations.

skills.sh installs: 450
GitHub stars: 39.4K
last updated: Jun 3, 2026

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Install

$ npx -y skills add sickn33/antigravity-awesome-skills --skill slack-gif-creator --agent claude-code

Installs into .claude/skills of the current project.

Files

Slack GIF Creator

A toolkit providing utilities and knowledge for creating animated GIFs optimized for Slack.

Catalog modification notice: clarified Slack recommendations and validator limits, corrected GIF duration/format checks and basic builder input handling. The bundled Apache-2.0 license text is retained; this review does not establish missing upstream authorship metadata.

Run from the resolved skill root (or add it to the Python module path), using an isolated environment and the bundled requirements. Decode untrusted images with bounded dimensions/frame counts and retain Pillow decompression-bomb protections. Export to a new task-local path; sharing/uploading requires the requested workspace and permission. Avoid flashing animations and provide a still preview.