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mujez/claude-skills

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A curated collection of open-source skills for Claude Code, Anthropic's official CLI for Claude. These skills extend Claude Code with domain-specific expertise, enabling it to follow best practices,...

Overview

A curated collection of open-source skills for Claude Code, Anthropic's official CLI for Claude. These skills extend Claude Code with domain-specific expertise, enabling it to follow best practices, enforce standards, and produce higher-quality output across a wide range of engineering and content disciplines. Skills are structured prompt files that give Claude Code deep, reusable expertise in specific domains. When a skill is installed, Claude Code automatically activates it based on the context of your task — no manual invocation needed. Each skill contains: - — The core prompt with rules, patterns, and standards - — Supporting material (checklists, patterns, service catalogs) - — Concrete examples and templates 2. Copy the skills you need into your Claude Code skills directory: 3. Claude Code will automatically detect and use the installed skills based on your task context. Each skill follows a consistent directory structure: Contributions are welcome.

README

Claude Code Skills

A curated collection of open-source skills for Claude Code, Anthropic’s official CLI for Claude. These skills extend Claude Code with domain-specific expertise, enabling it to follow best practices, enforce standards, and produce higher-quality output across a wide range of engineering and content disciplines.

Scan and verify skills before installing them at skillshield.io — Scan. Score. Shield.

What Are Claude Code Skills?

Skills are structured prompt files that give Claude Code deep, reusable expertise in specific domains. When a skill is installed, Claude Code automatically activates it based on the context of your task — no manual invocation needed. Each skill contains:

  • SKILL.md — The core prompt with rules, patterns, and standards
  • references/ — Supporting material (checklists, patterns, service catalogs)
  • examples/ — Concrete examples and templates

Available Skills

Skill Description
golang-backend Expert Go backend engineering — APIs, concurrency, database patterns, testing, and project structure for Go 1.22+
frontend-react Modern React development — React 19+, TypeScript, Next.js 15+, Tailwind CSS, state management, testing, and accessibility
gcp-platform Google Cloud Platform infrastructure — GKE, Cloud Run, Cloud SQL, Terraform, IAM, networking, and cost optimization
security-engineering Application and infrastructure security — OWASP Top 10, auth patterns, threat modeling, DevSecOps, and cryptography
github-actions CI/CD with GitHub Actions — workflow design, caching, OIDC auth, security scanning, reusable workflows, and deployment patterns
argocd-helm GitOps with ArgoCD and Helm — chart development, ApplicationSets, Argo Rollouts, secrets management, and multi-cluster deployments
seo-optimization SEO and AI search optimization — on-page SEO, technical SEO, structured data, Core Web Vitals, and AI Engine Optimization (AEO)
brand-guidelines Brand identity and design systems — color systems, typography, design tokens, voice and tone, and brand compliance reviews
mideast-fintech-content Fintech content for GCC markets — ERP/EFP content, regulatory context (ZATCA, SAMA), localized messaging for Saudi Arabia, UAE, and the Gulf region

Installation

  1. Clone this repository:
git clone https://github.com/mujez/claude-skills.git
  1. Copy the skills you need into your Claude Code skills directory:
# Copy a single skill
cp -r claude-skills/skills/golang-backend ~/.claude/skills/

# Or copy all skills
cp -r claude-skills/skills/* ~/.claude/skills/
  1. Claude Code will automatically detect and use the installed skills based on your task context.

Skill Structure

Each skill follows a consistent directory structure:

skills/
  skill-name/
    SKILL.md              # Core skill prompt
    references/           # Supporting reference material
      patterns.md
      checklists.md
    examples/             # Concrete examples and templates
      components.md
      services.md

Contributing

Contributions are welcome. To add a new skill or improve an existing one:

  1. Fork the repository
  2. Create a new branch for your changes
  3. Follow the existing skill structure (SKILL.md + references/ + examples/)
  4. Submit a pull request with a clear description of the skill and what it covers

Guidelines

  • Keep SKILL.md focused and actionable — rules over theory
  • Include concrete examples in the examples/ directory
  • Add reference material (checklists, patterns) in references/
  • Test the skill with Claude Code before submitting

Security — Verify Skills Before You Install

AI agent skills run with significant permissions on your machine. Malicious or poorly written skills can expose credentials, exfiltrate data, or modify agent behavior persistently. Known attack vectors include:

  • Credential theft — skills accessing API keys, SSH keys, wallet private keys, and .env files
  • Unsandboxed execution — skills running with full host permissions by default
  • Memory poisoning — modifying agent memory files for persistent, multi-stage attacks
  • Supply chain compromise — typosquatting and dependency hijacking through skill references
  • Social engineering — malicious skills disguised with professional documentation and legitimate-looking functionality

Always verify skills before installing them. Use SkillShield.io to scan any skill repository and get a security score before adding it to your environment. All skills in this repository have been reviewed and are open source for full transparency.

Read more: From SKILL.md to Shell Access — Threat Modeling Agent Skills (Snyk)

Discover More Skills

Visit skillshield.io to browse, scan, and discover community-contributed skills for Claude Code. Every listed skill includes a security score so you can make informed decisions before installing.

Built by Mujez

This project is maintained by Mujez, an AI-native accounting and financial platform built in Riyadh, Saudi Arabia for the GCC region.

At Mujez, we build AI-powered financial software — invoicing, bank reconciliation, accounts receivable/payable, payroll, and reporting — all designed for Saudi Arabia and the Gulf from day one, with full ZATCA e-invoicing compliance and Arabic RTL support.

Why we open-sourced these skills: The developer community in Egypt and the Middle East is growing fast. Egypt has one of the largest and most talented developer populations in the region, and alongside Saudi Arabia, the UAE, and the broader GCC, the entire area is investing heavily in AI and technology. Yet developers here still lack access to the same quality of tooling and shared knowledge that mature ecosystems take for granted. We built these skills internally to ship better software faster — and we’re releasing them because we believe the region’s developers deserve the same advantage.

We want to help grow a culture of open source and knowledge sharing starting from Egypt and reaching across the Middle East. Whether you’re building a startup in Cairo, fintech in Riyadh, deploying infrastructure in Dubai, or shipping a React app in Amman — these skills are for you. Use them, improve them, and contribute back.

Get involved:

  • Star this repo and share it with your team
  • Submit new skills via pull request
  • Join the conversation at mujez.ai
  • Scan and discover more skills at skillshield.io

License

This project is open source. See the LICENSE file for details.

View this README on GitHub

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Install

npx skillfish add mujez/claude-skills