What you'll get
This skill helps you create polished, animated GIFs that work perfectly in Slack. Whether you need a custom emoji, a reaction GIF, or a fun animation for your team chat, it handles the sizing, optimization, and visual polish. You describe what you want, and the AI creates it — no design software or animation experience needed.
Step 1 — Get the skill source URL
The Slack GIF Creator skill lives at:
Step 2 — Add it to your AI agent
Copy one of these prompts and paste it into your AI tool. The agent will fetch and install the skill for you.
Claude Code
Add the agent skill from https://github.com/anthropics/skills/tree/main/skills/slack-gif-creator to my project.
Cursor
Install this agent skill: https://github.com/anthropics/skills/tree/main/skills/slack-gif-creator
Codex
Add this skill to .codex/skills/: https://github.com/anthropics/skills/tree/main/skills/slack-gif-creator
Gemini CLI
Add the skill at https://github.com/anthropics/skills/tree/main/skills/slack-gif-creator to my .gemini/skills/ directory.
OpenCode
Install this agent skill from https://github.com/anthropics/skills/tree/main/skills/slack-gif-creator
Windsurf
Add this skill: https://github.com/anthropics/skills/tree/main/skills/slack-gif-creator
Step 3 — Try these prompts
Once the skill is installed, ask your AI things like:
- You need a custom emoji for your team's Slack workspace
- You want a fun reaction GIF that's perfectly sized for Slack messages
- Creating branded or inside-joke animations for your company chat
- You have an idea for an animation but no design tools or skills to make it
What this skill does
- Creates animated GIFs sized correctly for Slack (128x128 for emoji, 480x480 for messages)
- Generates smooth animations like bounces, spins, pulses, fades, and particle bursts
- Optimizes file size and color palettes so GIFs upload and display properly
- Validates GIFs against Slack's requirements and ensures they'll work
- Builds custom graphics from scratch or animates images you provide