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slack-gif-creator SKILL.md skillA

This file is byte-identical to the first copy the registry indexed, one of 11 indexed copies. Same content hash, so the same checks give both the same grade.

slack-gif-creator from osrim/ski is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add osrim/ski/slack-gif-creator@git:20260927.e6d3d84

Pins git:20260927.e6d3d84 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: osrim/ski
Path: cli/testdata/benign-skills/anthropic-skills/slack-gif-creator/SKILL.md
Versions recorded: 1
Latest version: git:20260927.e6d3d84, committed Sep 27, 2026
Size: 7,841 bytes
Repository stars: 8
License: MIT

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.".

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# 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
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add osrim/ski/slack-gif-creator@sha256:2efca615ce55a3ed

The line at the top of this page pins the label git:20260927.e6d3d84, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_tuxsrtdx6667wce4.svg)](https://markdownregistry.com/a/art_tuxsrtdx6667wce4)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 27, 2026.

version	committed	commit	size	audit
git:20260927.e6d3d84 latest	2026-09-27	e6d3d84	7,841 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (7841 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

osrim/ski · 8 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_tuxsrtdx6667wce4
GET https://markdownregistry.com/api/v1/resolve?ref=osrim/ski/slack-gif-creator
GET https://markdownregistry.com/api/v1/blob/2efca615ce55a3edd8fc05c779068a8085816617991987e446606403cd3abb22

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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