slack-gif-creator
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.
Profile →npx skills add anthropics/skills --skill slack-gif-creator --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Slack GIF Creator A toolkit providing utilities and knowledge for creating animated GIFs optimized for Slack. ## Slack Requirements **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 ## Core Workflow ```python from core.gif_builder import GIFBuilder from PIL import Image, ImageDraw # 1. Create builder builder = GIFBuilder(width=128, height=128, fps=10) # 2. Generate frames for i in range(12): frame = Image.new('RGB', (128, 128), (240, 248, 255)) draw = ImageDraw.Draw(frame) # Draw your animation using PIL primitives # (circles, polygons, lines, etc.) builder.add_frame(frame) # 3. Save with optimization builder.save('output.gif', num_colors=48, optimize_for_emoji=True) ``` ## Drawing Graphics ### Working with User-Uploaded Images 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: ```python from PIL import Image uploaded = Image.open
- Slack Requirements
- Core Workflow
- Drawing Graphics
- Working with User-Uploaded Images
- Drawing from Scratch
- Making Graphics Look Good
- Available Utilities
- GIFBuilder (core.gifbuilder)
- Validators (core.validators)
- Easing Functions (core.easing)
- Frame Helpers (core.framecomposer)
- Animation Concepts
- Shake/Vibrate
- Pulse/Heartbeat
pip install pillow imageio numpy
What does the slack-gif-creator skill do?
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.
How do I install it?
Run `npx skills add anthropics/skills --skill slack-gif-creator --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From anthropics/skills, a repository with 166,205 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.