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ATC Agentic Toolkit

Standardize and accelerate AI-assisted development across teams

A curated collection of prompts, skills, plugins, and best practices for AI coding agents. The ATC Agentic Toolkit provides production-ready configurations and reusable components for Claude Code and GitHub Copilot, with a focus on .NET development and enterprise patterns.

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📑 Table of Contents

• ATC Agentic Toolkit
  • 📑 Table of Contents
  • 💡 What is ATC Agentic Toolkit?
  • 🚀 Quick Start
  • 🔌 Available Plugins
  • 📁 Project Structure
  • 🛠️ Plugin Development
  • ✅ Requirements
  • 📚 Documentation
    • 📘 Guides
    • ✨ Best Practices
    • 📖 Reference
  • 🔧 Troubleshooting
  • 🤝 How to contribute

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💡 What is ATC Agentic Toolkit?

AI coding assistants like Claude Code and GitHub Copilot are transforming software development, but without standardized configurations, teams face:

• Inconsistent agent behavior across projects and developers
• Repeated context setup for common tasks
• Lost productivity gains from reinventing prompts and workflows
• Knowledge silos where effective patterns aren't shared

ATC Agentic Toolkit solves this by providing:

• Reusable Components - Skills and plugins that work out of the box
• Team Consistency - Standardized configurations that ensure predictable AI behavior
• Enterprise-Ready - Production patterns for .NET, Azure, and enterprise development
• Extensible Framework - Custom marketplace system for distributing internal tooling

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🚀 Quick Start

🖥️ Copilot CLI / Claude Code

1. Launch Copilot CLI or Claude Code
2. Add the marketplace:

   /plugin marketplace add atc-net/atc-agentic-toolkit
   

3. Install a plugin:

   /plugin install <plugin>@atc-agentic-toolkit
   

4. Restart to load the new plugins
5. View available skills:

   /skills
   

6. View available agents:

   /agents
   

7. Update plugin (on demand):

   /plugin update <plugin>@atc-agentic-toolkit
   

🆚 VS Code / VS Code Insiders (Preview)

[!IMPORTANT] VS Code plugin support is a preview feature and subject to change. You may need to enable it first.

// settings.json
{
  "chat.plugins.enabled": true,
  "chat.plugins.marketplaces": ["atc-net/atc-agentic-toolkit"]
}

Once configured, type /plugins in Copilot Chat or use the @agentPlugins filter in Extensions to browse and install plugins from the marketplace.

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🔌 Available Plugins

Plugin	Description
common	Common base skills including documentation generators, implementation planning, and utility tools
dotnet	C#/.NET development skills including refactoring, testing, async patterns, and NuGet management
azure	Azure services skills covering 200+ cloud services, IoT, AI, data, networking, and more
aspire	Aspire distributed application orchestration skills
git	Git workflow utilities including commit message generators and PR descriptions
github	GitHub platform skills including CI/CD workflow conventions for GitHub Actions and GitHub issue management
playwright	Browser automation and testing skills using Playwright
web	Web development skills covering HTML, CSS, JavaScript, web APIs, security, performance, and accessibility
bicep	Azure Bicep IaC best practices, naming conventions, modularization, and security patterns
docker	Docker and containerization best practices covering Dockerfile optimization, multi-stage builds, security, and orchestration
powershell	PowerShell cmdlet development and scripting best practices based on Microsoft guidelines
security	Security best practices and OWASP Top 10 guidelines for secure coding across all languages and frameworks
hooks	Automation hooks for Claude Code sessions (Claude Code only)

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📁 Project Structure

graph TD
    A[atc-agentic-toolkit] --> B[plugins/]
    A --> C[.claude-plugin/]
    A --> G[.github/plugin/]
    A --> D[docs/]
    A --> H[.claude/plugins/hooks/]

    B --> E["plugin-name/"]
    E --> F[skills/]
    E --> I[agents/]
    E --> K[plugin.json]

    C --> J[marketplace.json]
    G --> L[marketplace.json]

    D --> M[guides/]
    D --> N[best-practices/]
    D --> O[reference/]