📦
Agent Development
84Build reliable Claude Code agents
Plugin agents can trigger poorly or receive excessive tool access. This skill provides templates and guidance for focused agents with clear behavior.
Documentation View
Skills slack-gif-creator
📦
slack-gif-creator
Content revision r1 Safe ⚡ Contains scripts⚙️ External commands
Create Slack-Ready Animated GIFs
Slack GIFs can fail when dimensions, file size, or frame timing are wrong. This skill helps create, optimize, and validate GIFs for Slack.
Supports: Claude Codex Code(CC)
Install with my Agent
Copy this request to your Agent. It includes the canonical Skill page and manifest.
Agent request
Review the Skillstore skill "slack-gif-creator" from https://skillstore.io/skills/slack-gif-creator.md and its manifest at https://skillstore.io/api/skills/slack-gif-creator/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.Your Agent should still show its plan and request any confirmation required by the security policy.
Agent-readable resources
Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.
Test it
Using "slack-gif-creator". Create a Slack emoji GIF of a spinning blue star.
Expected outcome:
A 128 by 128 animated GIF with a blue star, smooth rotation, reduced colors, and a Slack validation summary.
Using "slack-gif-creator". Make a launch announcement GIF for Slack.
Expected outcome:
A short message GIF with gradient background, animated shapes, optimized frame count, and file size guidance.
Using "slack-gif-creator". Can you make this uploaded image bounce as a Slack emoji?
Expected outcome:
An emoji-sized GIF derived from the image, using bounce easing and a report on dimensions, frames, and duration.
Security Audit
Safev7 • 7/7/2026 Open versioned report
Static findings were reviewed against the source files and are false positives from Markdown code fences, inline code, and benign helper names. The skill provides local GIF creation and validation utilities without prompt injection, network access, credential access, or hidden command execution.
7
Files scanned
1,280
Lines analyzed
0
Review items
0
False positives ignored
Risk Factors
⚡ Contains scripts (1)
⚙️ External commands (36)
SKILL.md:24-43 SKILL.md:43-53 SKILL.md:53-58 SKILL.md:58-63 SKILL.md:63-80 SKILL.md:80-88 SKILL.md:88-91 SKILL.md:91-113 SKILL.md:113-115 SKILL.md:115-120 SKILL.md:120-122 SKILL.md:122-124 SKILL.md:124-133 SKILL.md:133-135 SKILL.md:135-137 SKILL.md:137-148 SKILL.md:148-150 SKILL.md:150-152 SKILL.md:152-160 SKILL.md:160-166 SKILL.md:166 SKILL.md:172-178 SKILL.md:178 SKILL.md:179-184 SKILL.md:184-190 SKILL.md:190-198 SKILL.md:198 SKILL.md:199-210 SKILL.md:210 SKILL.md:211-219 SKILL.md:219-221 SKILL.md:221-222 SKILL.md:222-224 SKILL.md:224-232 SKILL.md:232-252 SKILL.md:252-254
No confirmed security findings were detected by the latest completed static and semantic audit. This does not prove the skill has no side effects.
Audited by: codex View Audit History →
Share & cite this report
Share the versioned assessment report, neutral badge, embed card, and citations. Skillstore reports evidence without deciding whether this Skill is safe.
Copy report link
https://skillstore.io/skills/slack-gif-creator/audits/7?utm_source=security_passport&utm_medium=share&utm_campaign=versioned_reportMarkdown badge
[](https://skillstore.io/skills/slack-gif-creator?utm_source=security_passport_badge)HTML badge
<a href="https://skillstore.io/skills/slack-gif-creator?utm_source=security_passport_badge"><img src="https://skillstore.io/badges/skills/slack-gif-creator/security.svg" alt="Skillstore security assessment" loading="lazy"></a>Embed card
<iframe src="https://skillstore.io/embed/skills/slack-gif-creator.html" title="Skillstore Security Assessment" sandbox="allow-popups allow-popups-to-escape-sandbox" loading="lazy" referrerpolicy="no-referrer" width="420" height="180"></iframe>Academic citations (APA · BibTeX · CFF)
APA citation
anthropics. (2026). slack-gif-creator security audit report (audit version 7) [Author version unspecified]. Skillstore. https://skillstore.io/skills/slack-gif-creator/audits/7BibTeX citation
@techreport{anthropics-slack-gif-creator-2026,
author = {anthropics},
title = {slack-gif-creator security audit report (audit version 7)},
institution = {Skillstore},
year = {2026},
number = {7},
url = {https://skillstore.io/skills/slack-gif-creator/audits/7},
note = {Author version unspecified}
}CITATION.cff
cff-version: 1.2.0
message: "If you use this Skill, cite its author and this versioned security audit report."
title: "slack-gif-creator security audit report (audit version 7)"
version: "unspecified"
type: report
authors:
- name: "anthropics"
date-released: "2026-07-07"
url: "https://skillstore.io/skills/slack-gif-creator/audits/7"
identifiers:
- type: other
value: "skillstore:slack-gif-creator:audit:7"
description: "Skillstore immutable audit report identifier"
Compare variants
9 installable variantsEach author remains a separate installable skill. The recommended variant is ranked by Skillstore evidence.
Why this variant is first
Higher Skillstore usage
Author / source Skillstore Score Evidence Confidence Skillstore usage Updated
davila7 Recommended
davila7-slack-gif-creator
Skillstore Score 79
Evidence Confidence High
Skillstore usage 10
Updated
2026-08-21
azeem-2-slack-gif-creator
Skillstore Score 79
Evidence Confidence High
Skillstore usage 9
Updated
2026-08-21
anthropics Current
slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 27
Updated
2026-08-21
zhanlincui-slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 22
Updated
2026-08-21
artemisai-slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 10
Updated
2026-08-21
sickn33-slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 8
Updated
2026-08-21
cam10001110101-slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 8
Updated
2026-08-21
dyai2025-slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 7
Updated
2026-08-21
composiohq-slack-gif-creator
Skillstore Score 78
Evidence Confidence High
Skillstore usage 7
Updated
2026-08-21
Skillstore Score
Why this score Evidence Confidence: High 55
Architecture
85
Maintainability
85
Content
70
Community
91
Spec Compliance
What You Can Build
Team Reaction Emoji
Create small animated emoji GIFs that meet Slack dimension and color requirements.
Product Launch Animation
Build short branded message GIFs with polished motion, gradients, and optimized file size.
Design Prototype Motion
Explore bounce, pulse, slide, fade, and particle effects before producing a final GIF.
Try These Prompts
Simple Slack Emoji
Create a 128 by 128 Slack emoji GIF of a bouncing star. Keep it under three seconds and validate it.
Optimize Existing Idea
Make a Slack message GIF of a pulsing checkmark with a gradient background. Use smooth easing and reduce the file size.
Use Uploaded Image
Use my uploaded image as inspiration for a Slack emoji GIF. Match the colors, animate it, and verify Slack readiness.
Custom Motion System
Create a Slack GIF with a bouncing logo, particle burst, and fade out. Explain the frame choices and validation results.
Best Practices
- Use 128 by 128 pixels for emoji GIFs and validate the result before upload.
- Keep emoji animations under three seconds with moderate frame counts.
- Use fewer colors and duplicate frame removal when file size is too large.
Avoid
- Do not rely on emoji fonts because rendering varies across platforms.
- Do not use thin one-pixel lines for important shapes or outlines.
- Do not over-optimize before checking whether the GIF already meets Slack limits.
Frequently Asked Questions
Can this create Slack emoji GIFs?
Yes. It focuses on 128 by 128 animated GIFs and includes validation for Slack emoji readiness.
Can it create larger message GIFs?
Yes. It supports larger frame sizes, including 480 by 480 message GIFs.
Does it include ready-made graphics?
No. It provides drawing utilities and guidance, but users create graphics with Pillow primitives or uploaded images.
What dependencies are required?
The skill expects Pillow, imageio, imageio-ffmpeg, and NumPy in the local Python environment.
Can it reduce GIF file size?
Yes. It can reduce colors, resize for emoji, remove duplicate frames, and lower frame counts.
Does it upload GIFs to Slack?
No. It creates and validates GIF files locally. Uploading to Slack is outside the skill.
Developer Details
Author
anthropicsLicense
Complete terms in LICENSE.txt
Skillstore revision
r1
Version notice
The author did not declare a version.
Ref
f93e9bb0daca99badb6a7e574b97737155d57cb3
Maintenance freshness
7/18/2026
Usage
23 downloads · 225 views
File structure
More from anthropics
View all📦
writing-hookify-rules
82Write Hookify Rules for Claude Code
Hook rules can be hard to write correctly across bash, file, stop, and prompt events. This skill gives Claude, Codex, and Claude Code practical guidance for creating and testing Hookify rules.
DevOps & Infrastructure View
📦
Plugin Settings
81Configure Local Plugin Settings
Plugin authors need a safe way to store per-project settings without committing user-specific state. This skill explains a local Markdown and YAML frontmatter pattern for Claude, Codex, and Claude Code plugins.
Documentation View
📦
Plugin Structure
80Build Claude Code Plugin Structures
Plugin authors need a reliable structure before adding commands, agents, skills, hooks, or MCP servers. This skill explains the expected layout, manifest fields, naming rules, and portable path patterns.
Documentation View
📦
example-skill
80Build Effective Claude Code Skills
Skill authors need a clear reference for structuring and describing plugin skills. This guide explains required files, optional resources, frontmatter, activation wording, and practical design guidelines.
Documentation View
📦
frontend-design
79Create Distinctive Frontend Designs
Generic interface patterns can make products feel interchangeable and poorly matched to their users. This skill guides intentional choices in typography, color, layout, motion, copy, and responsiveness.
Design & Creative View
Related Skills
View all📦
slack-bot-builder
78Build Slack Apps with Bolt
by sickn33
Slack apps require secure event handling, OAuth flows, and polished interactive UI. This skill guides Claude, Codex, and Claude Code through Bolt patterns, Block Kit layouts, commands, events, and installation workflows.
Communication View
📦
vercel-react-view-transitions
82Implement React View Transitions
by vercel-labs
React view transitions are easy to misplace, causing silent or noisy animations. This skill guides route, Suspense, list, and shared element animation choices.
Coding & Development View
📦
gsap
80Build GSAP Animations for HyperFrames
by heygen-com
HyperFrames animation work needs precise GSAP timing, effects, and performance choices. This skill gives focused references for tweens, timelines, typewriter text, and audio-reactive visuals.
Coding & Development View
📦
remotion-best-practices
78Build Better Remotion Videos
by remotion-dev
Remotion projects need correct patterns for media, timing, captions, and rendering. This skill gives Claude, Codex, and Claude Code focused rules and examples for React video work.
Coding & Development View
📦
image-to-video
78Animate Images with RunComfy Video Models
by runcomfy-com
Still images need the right model and prompt to become useful video clips. This skill routes image-to-video requests to RunComfy models with matching settings and examples.
Design & Creative View
📦
animate
78Add Purposeful UI Animation
by pbakaus
Static interfaces can feel abrupt and unclear during state changes. This skill guides Claude, Codex, and Claude Code to add accessible, performant motion where it improves usability.
Design & Creative View