slack-gif-creator

A skill in anthropics/skills · 184,498 stars on GitHub

Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."

Security grade of this SKILL.md: SAFE · how we grade

How to install slack-gif-creator

npx skills add anthropics/skills --skill slack-gif-creator -a claude-code

The skills CLI copies this one skill into Claude Code (use -a for another agent). Or read its SKILL.md on GitHub.

What the SKILL.md says

A toolkit providing utilities and knowledge for creating animated GIFs optimized for Slack. Dimensions: Emoji GIFs: 128x128 (recommended). Message GIFs: 480x480. Parameters: FPS: 10-30 (lower is smaller file size). Colors: 48-128 (fewer = smaller file size). Duration: Keep under 3 seconds for emoji GIFs. If a user uploads an image, consider whether they want to: Use it directly (e.g., "animate this", "split this into frames"). Use it as inspiration (e.g., "make something like this"). Load and work with images using PIL: When drawing graphics from scratch, use PIL ImageDraw primitives: Don't use: Emoji fonts (unreliable across platforms) or assume pre-packaged graphics exist in this skill. Graphics should look polished and creative, not basic. Here's how: Use thicker lines - Always set width=2 or higher for outlines and lines. Thin lines (width=1) look choppy and amateurish.

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