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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