Canonical manifest schema
plugin.json targets the official 1.0.0 schema.
Agent Plugins specification §5.2
Slack GIF Creator Agent Plugin
Create animated emoji and message GIFs with practical size guidance, reusable Pillow utilities, easing functions, frame helpers, optimization controls, and validation checks.
0 repository stars Apache-2.0 Updated Aug 8, 2026
Reviewed seed
animated
for chat.
Short loops, deliberate motion, compact palettes, and validation tuned for expressive workplace messages.
Installation
Copy the plugin and install its Python requirements
Sparse-clone the complete plugin directory, install the packages listed in requirements.txt, and run generated scripts where the bundled core package can be imported.
Terminal · Git sparse checkout
git clone --filter=blob:none --sparse https://github.com/chenmiaohero/Portable-Agent-Plugins.git
cd Portable-Agent-Plugins
git sparse-checkout set plugins/slack-gif-creatorConfirm plugin.json is at the package root.
Install Pillow, imageio, and NumPy in the working environment.
Run the bundled validator on the exported GIF before sharing it.
Explainable standards check
Conforms to Agent Plugins 1.0.0
Official latest version: 1.0.0 (Working Draft). The value is read from the official specification and cached for one day.
This is a static package-format check, not a security audit, quality score, malware scan, or guarantee of client compatibility.
Required name and naming rules
The plugin name “slack-gif-creator” satisfies the 1–64 character naming rules.
Agent Plugins specification §§5.3 and 5.5
Closed top-level schema
No unknown top-level manifest fields were found.
Agent Plugins specification §5.2
Manifest field types
All present metadata and extension fields use permitted JSON types.
Agent Plugins specification §§5.2–5.6
Root plugin.json file
A regular plugin.json file exists at the plugin root.
Agent Plugins specification §§4.1 and 5.1
Agent Skills discovery and format
1 immediate-child Agent Skill discovered; every SKILL.md passed required frontmatter and naming checks.
Agent Plugins specification §7.1 and Agent Skills specification
MCP configuration
No root mcp.json is present; MCP is optional and its absence is conforming.
Agent Plugins specification §§6.2 and 7.2
Capabilities
What can you do with Slack GIF Creator?
Turn a simple motion idea into a chat-ready animated GIF.
Use this plugin when an agent needs to draw, animate, compress, and validate a custom GIF for an emoji-sized reaction or a larger message attachment.
- Target practical dimensions for emoji and message GIFs.
- Build frames from Pillow drawing primitives or user-provided images.
- Apply easing functions for bounce, pulse, shake, slide, spin, and zoom motion.
- Compose reusable backgrounds, shapes, stars, circles, and text.
- Reduce frame count, palette size, dimensions, and duplicate frames when needed.
- Validate the finished GIF against common Slack-oriented constraints.
- Keep emoji loops short and visually readable at small sizes.
Build frames with reusable utilities
Assemble animations with a GIF builder, frame helpers, drawing primitives, and smooth interpolation functions.
Polish motion and graphics
Combine layered shapes, strong outlines, depth, contrast, and expressive motion instead of settling for placeholder visuals.
Validate before sharing
Inspect dimensions and optimization settings, remove redundant frames, and confirm the exported file is ready for its intended use.
Practical workflow
From animation concept to optimized GIF
Pass 01 / Animate
Plan and render the loop
Choose the output size, frame rate, duration, and motion concept, then draw or transform each frame with Pillow.
Pass 02 / Optimize
Export, validate, and refine
Save with an appropriate palette, remove duplicate frames when useful, validate the file, and tune motion or size until it is chat-ready.
Package contents
What is included in Slack GIF Creator?
Slack GIF Creator declares 1 Skill, 0 MCP configurations, and 2 additional resources. The included-file links below point to the reviewed source repository.
Agent Skills
1
slack-gif-creator
MCP servers
0
No runtime service
Package format
Agent Plugins
Official latest 1.0.0
Synced source content
Repository README
This README snapshot is stored by Agent Plugins Hub and refreshed by the daily GitHub synchronization pipeline. Remote images and embedded content are not loaded.
This repository does not currently provide a README snapshot. The plugin instructions below remain available.
Source documentation
Slack GIF Creator workflow and utilities
Rendered from the linked GitHub source. Raw HTML is disabled, scripts cannot execute, remote images are omitted, and external links open separately.
What this plugin does
Slack GIF Creator combines animation guidance with Python utilities for building compact animated emoji and message GIFs. It covers frame composition, easing, export optimization, and validation.
Practical workflow
Choose the target dimensions and a short animation concept. Generate frames with Pillow, use the bundled easing and frame helpers for smoother motion, then export through the GIF builder with a palette and frame rate appropriate for the intended size.
Optimization and validation
When the file is too large, reduce its duration, frames per second, dimensions, or color count, and remove duplicate frames. Run the bundled validator after export and inspect the loop at its actual display size.
Dependencies
The included requirements file declares Pillow, imageio, and NumPy. Review generated Python code and user-provided images before processing them in your environment.
Source
This portable package is maintained in chenmiaohero/Portable-Agent-Plugins from a pinned Apache-2.0 upstream Skill.
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