Add Ruby MCP Server Development collection (#330)

- Add Ruby MCP server best practices instruction
- Add Ruby MCP server project generator prompt
- Add Ruby MCP expert chat mode
- Add Ruby MCP development collection manifest
- Update category READMEs

Features:
- Server setup with official mcp gem
- Tool/prompt/resource handlers with classes
- Rails controller integration
- Stdio and HTTP transport support
- Input/output schemas with validation
- Tool annotations for behavior hints
- Structured content in responses
- Exception reporting and instrumentation
- Minitest test examples

Co-authored-by: Aaron Powell <me@aaron-powell.com>
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Troy Simeon Taylor 2025-10-16 20:12:10 -04:00 committed by GitHub
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@ -70,6 +70,7 @@ Custom chat modes define specific behaviors and tools for GitHub Copilot Chat, e
| [Python MCP Server Expert](chatmodes/python-mcp-expert.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fpython-mcp-expert.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fpython-mcp-expert.chatmode.md) | Expert assistant for developing Model Context Protocol (MCP) servers in Python |
| [Refine Requirement or Issue Chat Mode](chatmodes/refine-issue.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Frefine-issue.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Frefine-issue.chatmode.md) | Refine the requirement or issue with Acceptance Criteria, Technical Considerations, Edge Cases, and NFRs |
| [Requirements to Jira Epic & User Story Creator](chatmodes/atlassian-requirements-to-jira.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fatlassian-requirements-to-jira.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fatlassian-requirements-to-jira.chatmode.md) | Transform requirements documents into structured Jira epics and user stories with intelligent duplicate detection, change management, and user-approved creation workflow. |
| [Ruby MCP Expert](chatmodes/ruby-mcp-expert.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fruby-mcp-expert.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fruby-mcp-expert.chatmode.md) | Expert assistance for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem with Rails integration. |
| [Rust Beast Mode](chatmodes/rust-gpt-4.1-beast-mode.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Frust-gpt-4.1-beast-mode.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Frust-gpt-4.1-beast-mode.chatmode.md) | Rust GPT-4.1 Coding Beast Mode for VS Code |
| [Semantic Kernel .NET mode instructions](chatmodes/semantic-kernel-dotnet.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fsemantic-kernel-dotnet.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fsemantic-kernel-dotnet.chatmode.md) | Create, update, refactor, explain or work with code using the .NET version of Semantic Kernel. |
| [Semantic Kernel Python mode instructions](chatmodes/semantic-kernel-python.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fsemantic-kernel-python.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fsemantic-kernel-python.chatmode.md) | Create, update, refactor, explain or work with code using the Python version of Semantic Kernel. |

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@ -31,6 +31,7 @@ Curated collections of related prompts, instructions, and chat modes organized a
| [Power Platform MCP Connector Development](collections/power-platform-mcp-connector-development.md) | Complete toolkit for developing Power Platform custom connectors with Model Context Protocol integration for Microsoft Copilot Studio | 4 items | power-platform, mcp, copilot-studio, custom-connector, json-rpc |
| [Project Planning & Management](collections/project-planning.md) | Tools and guidance for software project planning, feature breakdown, epic management, implementation planning, and task organization for development teams. | 17 items | planning, project-management, epic, feature, implementation, task, architecture, technical-spike |
| [Python MCP Server Development](collections/python-mcp-development.md) | Complete toolkit for building Model Context Protocol (MCP) servers in Python using the official SDK with FastMCP. Includes instructions for best practices, a prompt for generating servers, and an expert chat mode for guidance. | 3 items | python, mcp, model-context-protocol, fastmcp, server-development |
| [Ruby MCP Server Development](collections/ruby-mcp-development.md) | 'Complete toolkit for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem with Rails integration support.' | 3 items | ruby, mcp, model-context-protocol, server-development, sdk, rails, gem |
| [Security & Code Quality](collections/security-best-practices.md) | Security frameworks, accessibility guidelines, performance optimization, and code quality best practices for building secure, maintainable, and high-performance applications. | 6 items | security, accessibility, performance, code-quality, owasp, a11y, optimization, best-practices |
| [Swift MCP Server Development](collections/swift-mcp-development.md) | 'Comprehensive collection for building Model Context Protocol servers in Swift using the official MCP Swift SDK with modern concurrency features.' | 3 items | swift, mcp, model-context-protocol, server-development, sdk, ios, macos, concurrency, actor, async-await |
| [Tasks by microsoft/edge-ai](collections/edge-ai-tasks.md) | Task Researcher and Task Planner for intermediate to expert users and large codebases - Brought to you by microsoft/edge-ai | 3 items | architecture, planning, research, tasks, implementation |

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@ -97,6 +97,7 @@ Team and project-specific instructions to enhance GitHub Copilot's behavior for
| [Quarkus](instructions/quarkus.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fquarkus.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fquarkus.instructions.md) | Quarkus development standards and instructions |
| [Quarkus MCP Server](instructions/quarkus-mcp-server-sse.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fquarkus-mcp-server-sse.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fquarkus-mcp-server-sse.instructions.md) | Quarkus and MCP Server with HTTP SSE transport development standards and instructions |
| [ReactJS Development Instructions](instructions/reactjs.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Freactjs.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Freactjs.instructions.md) | ReactJS development standards and best practices |
| [Ruby MCP Server Development Guidelines](instructions/ruby-mcp-server.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fruby-mcp-server.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fruby-mcp-server.instructions.md) | Best practices and patterns for building Model Context Protocol (MCP) servers in Ruby using the official MCP Ruby SDK gem. |
| [Ruby on Rails](instructions/ruby-on-rails.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fruby-on-rails.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fruby-on-rails.instructions.md) | Ruby on Rails coding conventions and guidelines |
| [Rust Coding Conventions and Best Practices](instructions/rust.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Frust.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Frust.instructions.md) | Rust programming language coding conventions and best practices |
| [Secure Coding and OWASP Guidelines](instructions/security-and-owasp.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fsecurity-and-owasp.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fsecurity-and-owasp.instructions.md) | Comprehensive secure coding instructions for all languages and frameworks, based on OWASP Top 10 and industry best practices. |

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@ -98,6 +98,7 @@ Ready-to-use prompt templates for specific development scenarios and tasks, defi
| [Refactoring Java Methods with Extract Method](prompts/java-refactoring-extract-method.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fjava-refactoring-extract-method.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fjava-refactoring-extract-method.prompt.md) | Refactoring using Extract Methods in Java Language |
| [Repo Story Time](prompts/repo-story-time.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Frepo-story-time.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Frepo-story-time.prompt.md) | Generate a comprehensive repository summary and narrative story from commit history |
| [Review And Refactor](prompts/review-and-refactor.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Freview-and-refactor.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Freview-and-refactor.prompt.md) | Review and refactor code in your project according to defined instructions |
| [Ruby MCP Server Generator](prompts/ruby-mcp-server-generator.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fruby-mcp-server-generator.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fruby-mcp-server-generator.prompt.md) | Generate a complete Model Context Protocol server project in Ruby using the official MCP Ruby SDK gem. |
| [Shuffle JSON Data](prompts/shuffle-json-data.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fshuffle-json-data.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fshuffle-json-data.prompt.md) | Shuffle repetitive JSON objects safely by validating schema consistency before randomising entries. |
| [Spring Boot Best Practices](prompts/java-springboot.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fjava-springboot.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fjava-springboot.prompt.md) | Get best practices for developing applications with Spring Boot. |
| [Spring Boot with Kotlin Best Practices](prompts/kotlin-springboot.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fkotlin-springboot.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fkotlin-springboot.prompt.md) | Get best practices for developing applications with Spring Boot and Kotlin. |

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@ -0,0 +1,346 @@
---
description: 'Expert assistance for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem with Rails integration.'
model: GPT-4.1
---
# Ruby MCP Expert
I'm specialized in helping you build robust, production-ready MCP servers in Ruby using the official Ruby SDK. I can assist with:
## Core Capabilities
### Server Architecture
- Setting up MCP::Server instances
- Configuring tools, prompts, and resources
- Implementing stdio and HTTP transports
- Rails controller integration
- Server context for authentication
### Tool Development
- Creating tool classes with MCP::Tool
- Defining input/output schemas
- Implementing tool annotations
- Structured content in responses
- Error handling with is_error flag
### Resource Management
- Defining resources and resource templates
- Implementing resource read handlers
- URI template patterns
- Dynamic resource generation
### Prompt Engineering
- Creating prompt classes with MCP::Prompt
- Defining prompt arguments
- Multi-turn conversation templates
- Dynamic prompt generation with server_context
### Configuration
- Exception reporting with Bugsnag/Sentry
- Instrumentation callbacks for metrics
- Protocol version configuration
- Custom JSON-RPC methods
## Code Assistance
I can help you with:
### Gemfile Setup
```ruby
gem 'mcp', '~> 0.4.0'
```
### Server Creation
```ruby
server = MCP::Server.new(
name: 'my_server',
version: '1.0.0',
tools: [MyTool],
prompts: [MyPrompt],
server_context: { user_id: current_user.id }
)
```
### Tool Definition
```ruby
class MyTool < MCP::Tool
tool_name 'my_tool'
description 'Tool description'
input_schema(
properties: {
query: { type: 'string' }
},
required: ['query']
)
annotations(
read_only_hint: true
)
def self.call(query:, server_context:)
MCP::Tool::Response.new([{
type: 'text',
text: 'Result'
}])
end
end
```
### Stdio Transport
```ruby
transport = MCP::Server::Transports::StdioTransport.new(server)
transport.open
```
### Rails Integration
```ruby
class McpController < ApplicationController
def index
server = MCP::Server.new(
name: 'rails_server',
tools: [MyTool],
server_context: { user_id: current_user.id }
)
render json: server.handle_json(request.body.read)
end
end
```
## Best Practices
### Use Classes for Tools
Organize tools as classes for better structure:
```ruby
class GreetTool < MCP::Tool
tool_name 'greet'
description 'Generate greeting'
def self.call(name:, server_context:)
MCP::Tool::Response.new([{
type: 'text',
text: "Hello, #{name}!"
}])
end
end
```
### Define Schemas
Ensure type safety with input/output schemas:
```ruby
input_schema(
properties: {
name: { type: 'string' },
age: { type: 'integer', minimum: 0 }
},
required: ['name']
)
output_schema(
properties: {
message: { type: 'string' },
timestamp: { type: 'string', format: 'date-time' }
},
required: ['message']
)
```
### Add Annotations
Provide behavior hints:
```ruby
annotations(
read_only_hint: true,
destructive_hint: false,
idempotent_hint: true
)
```
### Include Structured Content
Return both text and structured data:
```ruby
data = { temperature: 72, condition: 'sunny' }
MCP::Tool::Response.new(
[{ type: 'text', text: data.to_json }],
structured_content: data
)
```
## Common Patterns
### Authenticated Tool
```ruby
class SecureTool < MCP::Tool
def self.call(**args, server_context:)
user_id = server_context[:user_id]
raise 'Unauthorized' unless user_id
# Process request
MCP::Tool::Response.new([{
type: 'text',
text: 'Success'
}])
end
end
```
### Error Handling
```ruby
def self.call(data:, server_context:)
begin
result = process(data)
MCP::Tool::Response.new([{
type: 'text',
text: result
}])
rescue ValidationError => e
MCP::Tool::Response.new(
[{ type: 'text', text: e.message }],
is_error: true
)
end
end
```
### Resource Handler
```ruby
server.resources_read_handler do |params|
case params[:uri]
when 'resource://data'
[{
uri: params[:uri],
mimeType: 'application/json',
text: fetch_data.to_json
}]
else
raise "Unknown resource: #{params[:uri]}"
end
end
```
### Dynamic Prompt
```ruby
class CustomPrompt < MCP::Prompt
def self.template(args, server_context:)
user_id = server_context[:user_id]
user = User.find(user_id)
MCP::Prompt::Result.new(
description: "Prompt for #{user.name}",
messages: generate_for(user)
)
end
end
```
## Configuration
### Exception Reporting
```ruby
MCP.configure do |config|
config.exception_reporter = ->(exception, context) {
Bugsnag.notify(exception) do |report|
report.add_metadata(:mcp, context)
end
}
end
```
### Instrumentation
```ruby
MCP.configure do |config|
config.instrumentation_callback = ->(data) {
StatsD.timing("mcp.#{data[:method]}", data[:duration])
}
end
```
### Custom Methods
```ruby
server.define_custom_method(method_name: 'custom') do |params|
# Return result or nil for notifications
{ status: 'ok' }
end
```
## Testing
### Tool Tests
```ruby
class MyToolTest < Minitest::Test
def test_tool_call
response = MyTool.call(
query: 'test',
server_context: {}
)
refute response.is_error
assert_equal 1, response.content.length
end
end
```
### Integration Tests
```ruby
def test_server_handles_request
server = MCP::Server.new(
name: 'test',
tools: [MyTool]
)
request = {
jsonrpc: '2.0',
id: '1',
method: 'tools/call',
params: {
name: 'my_tool',
arguments: { query: 'test' }
}
}.to_json
response = JSON.parse(server.handle_json(request))
assert response['result']
end
```
## Ruby SDK Features
### Supported Methods
- `initialize` - Protocol initialization
- `ping` - Health check
- `tools/list` - List tools
- `tools/call` - Call tool
- `prompts/list` - List prompts
- `prompts/get` - Get prompt
- `resources/list` - List resources
- `resources/read` - Read resource
- `resources/templates/list` - List resource templates
### Notifications
- `notify_tools_list_changed`
- `notify_prompts_list_changed`
- `notify_resources_list_changed`
### Transport Support
- Stdio transport for CLI
- HTTP transport for web services
- Streamable HTTP with SSE
## Ask Me About
- Server setup and configuration
- Tool, prompt, and resource implementations
- Rails integration patterns
- Exception reporting and instrumentation
- Input/output schema design
- Tool annotations
- Structured content responses
- Server context usage
- Testing strategies
- HTTP transport with authorization
- Custom JSON-RPC methods
- Notifications and list changes
- Protocol version management
- Performance optimization
I'm here to help you build idiomatic, production-ready Ruby MCP servers. What would you like to work on?

View File

@ -0,0 +1,35 @@
id: ruby-mcp-development
name: Ruby MCP Server Development
description: 'Complete toolkit for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem with Rails integration support.'
tags: [ruby, mcp, model-context-protocol, server-development, sdk, rails, gem]
items:
- path: instructions/ruby-mcp-server.instructions.md
kind: instruction
- path: prompts/ruby-mcp-server-generator.prompt.md
kind: prompt
- path: chatmodes/ruby-mcp-expert.chatmode.md
kind: chat-mode
usage: |
recommended
This chat mode provides expert guidance for building MCP servers in Ruby.
This chat mode is ideal for:
- Creating new MCP server projects with Ruby
- Implementing tools, prompts, and resources
- Setting up stdio or HTTP transports
- Debugging schema definitions and error handling
- Learning Ruby MCP best practices with the official SDK
- Integrating with Rails applications
To get the best results, consider:
- Using the instruction file to set context for Ruby MCP development
- Using the prompt to generate initial project structure
- Switching to the expert chat mode for detailed implementation help
- Specifying whether you need stdio or Rails integration
- Providing details about what tools or functionality you need
- Mentioning if you need authentication or server_context usage
display:
ordering: manual
show_badge: true

View File

@ -0,0 +1,41 @@
# Ruby MCP Server Development
'Complete toolkit for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem with Rails integration support.'
**Tags:** ruby, mcp, model-context-protocol, server-development, sdk, rails, gem
## Items in this Collection
| Title | Type | Description |
| ----- | ---- | ----------- |
| [Ruby MCP Server Development Guidelines](../instructions/ruby-mcp-server.instructions.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fruby-mcp-server.instructions.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/instructions?url=vscode-insiders%3Achat-instructions%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Finstructions%2Fruby-mcp-server.instructions.md) | Instruction | Best practices and patterns for building Model Context Protocol (MCP) servers in Ruby using the official MCP Ruby SDK gem. |
| [Ruby MCP Server Generator](../prompts/ruby-mcp-server-generator.prompt.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fruby-mcp-server-generator.prompt.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/prompt?url=vscode-insiders%3Achat-prompt%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fprompts%2Fruby-mcp-server-generator.prompt.md) | Prompt | Generate a complete Model Context Protocol server project in Ruby using the official MCP Ruby SDK gem. |
| [Ruby MCP Expert](../chatmodes/ruby-mcp-expert.chatmode.md)<br />[![Install in VS Code](https://img.shields.io/badge/VS_Code-Install-0098FF?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fruby-mcp-expert.chatmode.md)<br />[![Install in VS Code Insiders](https://img.shields.io/badge/VS_Code_Insiders-Install-24bfa5?style=flat-square&logo=visualstudiocode&logoColor=white)](https://aka.ms/awesome-copilot/install/chatmode?url=vscode-insiders%3Achat-mode%2Finstall%3Furl%3Dhttps%3A%2F%2Fraw.githubusercontent.com%2Fgithub%2Fawesome-copilot%2Fmain%2Fchatmodes%2Fruby-mcp-expert.chatmode.md) | Chat Mode | Expert assistance for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem with Rails integration. [see usage](#ruby-mcp-expert) |
## Collection Usage
### Ruby MCP Expert
recommended
This chat mode provides expert guidance for building MCP servers in Ruby.
This chat mode is ideal for:
- Creating new MCP server projects with Ruby
- Implementing tools, prompts, and resources
- Setting up stdio or HTTP transports
- Debugging schema definitions and error handling
- Learning Ruby MCP best practices with the official SDK
- Integrating with Rails applications
To get the best results, consider:
- Using the instruction file to set context for Ruby MCP development
- Using the prompt to generate initial project structure
- Switching to the expert chat mode for detailed implementation help
- Specifying whether you need stdio or Rails integration
- Providing details about what tools or functionality you need
- Mentioning if you need authentication or server_context usage
---
*This collection includes 3 curated items for ruby mcp server development.*

View File

@ -0,0 +1,629 @@
---
description: 'Best practices and patterns for building Model Context Protocol (MCP) servers in Ruby using the official MCP Ruby SDK gem.'
applyTo: "**/*.rb, **/Gemfile, **/*.gemspec, **/Rakefile"
---
# Ruby MCP Server Development Guidelines
When building MCP servers in Ruby, follow these best practices and patterns using the official Ruby SDK.
## Installation
Add the MCP gem to your Gemfile:
```ruby
gem 'mcp'
```
Then run:
```bash
bundle install
```
## Server Setup
Create an MCP server instance:
```ruby
require 'mcp'
server = MCP::Server.new(
name: 'my_server',
version: '1.0.0'
)
```
## Adding Tools
Define tools using classes or blocks:
### Tool as Class
```ruby
class GreetTool < MCP::Tool
tool_name 'greet'
description 'Generate a greeting message'
input_schema(
properties: {
name: { type: 'string', description: 'Name to greet' }
},
required: ['name']
)
output_schema(
properties: {
message: { type: 'string' },
timestamp: { type: 'string', format: 'date-time' }
},
required: ['message']
)
annotations(
read_only_hint: true,
idempotent_hint: true
)
def self.call(name:, server_context:)
MCP::Tool::Response.new([{
type: 'text',
text: "Hello, #{name}! Welcome to MCP."
}], structured_content: {
message: "Hello, #{name}!",
timestamp: Time.now.iso8601
})
end
end
server = MCP::Server.new(
name: 'my_server',
tools: [GreetTool]
)
```
### Tool with Block
```ruby
server.define_tool(
name: 'calculate',
description: 'Perform mathematical calculations',
input_schema: {
properties: {
operation: { type: 'string', enum: ['add', 'subtract', 'multiply', 'divide'] },
a: { type: 'number' },
b: { type: 'number' }
},
required: ['operation', 'a', 'b']
},
annotations: {
read_only_hint: true,
idempotent_hint: true
}
) do |args, server_context|
operation = args['operation']
a = args['a']
b = args['b']
result = case operation
when 'add' then a + b
when 'subtract' then a - b
when 'multiply' then a * b
when 'divide'
return MCP::Tool::Response.new([{ type: 'text', text: 'Division by zero' }], is_error: true) if b == 0
a / b
else
return MCP::Tool::Response.new([{ type: 'text', text: "Unknown operation: #{operation}" }], is_error: true)
end
MCP::Tool::Response.new([{ type: 'text', text: "Result: #{result}" }])
end
```
## Adding Resources
Define resources for data access:
```ruby
# Register resources
resource = MCP::Resource.new(
uri: 'resource://data/example',
name: 'example-data',
description: 'Example resource data',
mime_type: 'application/json'
)
server = MCP::Server.new(
name: 'my_server',
resources: [resource]
)
# Define read handler
server.resources_read_handler do |params|
case params[:uri]
when 'resource://data/example'
[{
uri: params[:uri],
mimeType: 'application/json',
text: { message: 'Example data', timestamp: Time.now }.to_json
}]
else
raise "Unknown resource: #{params[:uri]}"
end
end
```
## Adding Prompts
Define prompt templates:
### Prompt as Class
```ruby
class CodeReviewPrompt < MCP::Prompt
prompt_name 'code_review'
description 'Generate a code review prompt'
arguments [
MCP::Prompt::Argument.new(
name: 'language',
description: 'Programming language',
required: true
),
MCP::Prompt::Argument.new(
name: 'focus',
description: 'Review focus area',
required: false
)
]
def self.template(args, server_context:)
language = args['language'] || 'Ruby'
focus = args['focus'] || 'general quality'
MCP::Prompt::Result.new(
description: "Code review for #{language} with focus on #{focus}",
messages: [
MCP::Prompt::Message.new(
role: 'user',
content: MCP::Content::Text.new("Please review this #{language} code with focus on #{focus}.")
),
MCP::Prompt::Message.new(
role: 'assistant',
content: MCP::Content::Text.new("I'll review the code focusing on #{focus}. Please share the code.")
)
]
)
end
end
server = MCP::Server.new(
name: 'my_server',
prompts: [CodeReviewPrompt]
)
```
### Prompt with Block
```ruby
server.define_prompt(
name: 'analyze',
description: 'Analyze a topic',
arguments: [
MCP::Prompt::Argument.new(name: 'topic', description: 'Topic to analyze', required: true),
MCP::Prompt::Argument.new(name: 'depth', description: 'Analysis depth', required: false)
]
) do |args, server_context:|
topic = args['topic']
depth = args['depth'] || 'basic'
MCP::Prompt::Result.new(
description: "Analysis of #{topic} at #{depth} level",
messages: [
MCP::Prompt::Message.new(
role: 'user',
content: MCP::Content::Text.new("Please analyze: #{topic}")
),
MCP::Prompt::Message.new(
role: 'assistant',
content: MCP::Content::Text.new("I'll provide a #{depth} analysis of #{topic}")
)
]
)
end
```
## Transport Configuration
### Stdio Transport
For local command-line applications:
```ruby
require 'mcp'
server = MCP::Server.new(
name: 'my_server',
tools: [MyTool]
)
transport = MCP::Server::Transports::StdioTransport.new(server)
transport.open
```
### HTTP Transport (Rails)
For Rails applications:
```ruby
class McpController < ApplicationController
def index
server = MCP::Server.new(
name: 'rails_server',
version: '1.0.0',
tools: [SomeTool],
prompts: [MyPrompt],
server_context: { user_id: current_user.id }
)
render json: server.handle_json(request.body.read)
end
end
```
### Streamable HTTP Transport
For Server-Sent Events:
```ruby
server = MCP::Server.new(name: 'my_server')
transport = MCP::Server::Transports::StreamableHTTPTransport.new(server)
server.transport = transport
# When tools change, notify clients
server.define_tool(name: 'new_tool') { |**args| { result: 'ok' } }
server.notify_tools_list_changed
```
## Server Context
Pass contextual information to tools and prompts:
```ruby
server = MCP::Server.new(
name: 'my_server',
tools: [AuthenticatedTool],
server_context: {
user_id: current_user.id,
request_id: request.uuid,
auth_token: session[:token]
}
)
class AuthenticatedTool < MCP::Tool
def self.call(query:, server_context:)
user_id = server_context[:user_id]
# Use user_id for authorization
MCP::Tool::Response.new([{ type: 'text', text: 'Authorized' }])
end
end
```
## Configuration
### Exception Reporting
Configure exception reporting:
```ruby
MCP.configure do |config|
config.exception_reporter = ->(exception, server_context) {
# Report to your error tracking service
Bugsnag.notify(exception) do |report|
report.add_metadata(:mcp, server_context)
end
}
end
```
### Instrumentation
Monitor MCP server performance:
```ruby
MCP.configure do |config|
config.instrumentation_callback = ->(data) {
# Log instrumentation data
Rails.logger.info("MCP: #{data.inspect}")
# Or send to metrics service
StatsD.timing("mcp.#{data[:method]}.duration", data[:duration])
StatsD.increment("mcp.#{data[:method]}.count")
}
end
```
The instrumentation data includes:
- `method`: Protocol method called (e.g., "tools/call")
- `tool_name`: Name of tool called
- `prompt_name`: Name of prompt called
- `resource_uri`: URI of resource called
- `error`: Error code if lookup failed
- `duration`: Duration in seconds
### Protocol Version
Override the protocol version:
```ruby
configuration = MCP::Configuration.new(protocol_version: '2025-06-18')
server = MCP::Server.new(name: 'my_server', configuration: configuration)
```
## Tool Annotations
Provide metadata about tool behavior:
```ruby
class DataTool < MCP::Tool
annotations(
read_only_hint: true, # Tool only reads data
destructive_hint: false, # Tool doesn't destroy data
idempotent_hint: true, # Same input = same output
open_world_hint: false # Tool operates in closed context
)
def self.call(**args, server_context:)
# Implementation
end
end
```
## Tool Output Schemas
Define expected output structure:
```ruby
class WeatherTool < MCP::Tool
output_schema(
properties: {
temperature: { type: 'number' },
condition: { type: 'string' },
humidity: { type: 'integer' }
},
required: ['temperature', 'condition']
)
def self.call(location:, server_context:)
weather_data = {
temperature: 72.5,
condition: 'sunny',
humidity: 45
}
# Validate against schema
output_schema.validate_result(weather_data)
MCP::Tool::Response.new(
[{ type: 'text', text: weather_data.to_json }],
structured_content: weather_data
)
end
end
```
## Structured Content in Responses
Return structured data with text:
```ruby
class APITool < MCP::Tool
def self.call(endpoint:, server_context:)
api_data = call_api(endpoint)
MCP::Tool::Response.new(
[{ type: 'text', text: api_data.to_json }],
structured_content: api_data
)
end
end
```
## Custom Methods
Define custom JSON-RPC methods:
```ruby
server = MCP::Server.new(name: 'my_server')
# Custom method with result
server.define_custom_method(method_name: 'add') do |params|
params[:a] + params[:b]
end
# Custom notification (returns nil)
server.define_custom_method(method_name: 'notify') do |params|
puts "Notification: #{params[:message]}"
nil
end
```
## Notifications
Send list change notifications:
```ruby
server = MCP::Server.new(name: 'my_server')
transport = MCP::Server::Transports::StreamableHTTPTransport.new(server)
server.transport = transport
# Notify when tools change
server.define_tool(name: 'new_tool') { |**args| { result: 'ok' } }
server.notify_tools_list_changed
# Notify when prompts change
server.define_prompt(name: 'new_prompt') { |args, **_| MCP::Prompt::Result.new(...) }
server.notify_prompts_list_changed
# Notify when resources change
server.notify_resources_list_changed
```
## Resource Templates
Define dynamic resources with URI templates:
```ruby
resource_template = MCP::ResourceTemplate.new(
uri_template: 'users://{user_id}/profile',
name: 'user-profile',
description: 'User profile data',
mime_type: 'application/json'
)
server = MCP::Server.new(
name: 'my_server',
resource_templates: [resource_template]
)
```
## Error Handling
Handle errors properly in tools:
```ruby
class RiskyTool < MCP::Tool
def self.call(data:, server_context:)
begin
result = risky_operation(data)
MCP::Tool::Response.new([{ type: 'text', text: result }])
rescue ValidationError => e
MCP::Tool::Response.new(
[{ type: 'text', text: "Invalid input: #{e.message}" }],
is_error: true
)
rescue => e
# Will be caught and reported by exception_reporter
raise
end
end
end
```
## Testing
Write tests for your MCP server:
```ruby
require 'minitest/autorun'
require 'mcp'
class MyToolTest < Minitest::Test
def test_greet_tool
response = GreetTool.call(name: 'Ruby', server_context: {})
assert_equal 1, response.content.length
assert_match(/Ruby/, response.content.first[:text])
refute response.is_error
end
def test_invalid_input
response = CalculateTool.call(operation: 'divide', a: 10, b: 0, server_context: {})
assert response.is_error
end
end
```
## Client Usage
Build MCP clients to connect to servers:
```ruby
require 'mcp'
require 'faraday'
# HTTP transport
http_transport = MCP::Client::HTTP.new(
url: 'https://api.example.com/mcp',
headers: { 'Authorization' => "Bearer #{token}" }
)
client = MCP::Client.new(transport: http_transport)
# List tools
tools = client.tools
tools.each do |tool|
puts "Tool: #{tool.name}"
puts "Description: #{tool.description}"
end
# Call a tool
response = client.call_tool(
tool: tools.first,
arguments: { message: 'Hello, world!' }
)
```
## Best Practices
1. **Use classes for complex tools** - Better organization and testability
2. **Define input/output schemas** - Ensure type safety and validation
3. **Add annotations** - Help clients understand tool behavior
4. **Include structured content** - Provide both text and structured data
5. **Use server_context** - Pass authentication and request context
6. **Configure exception reporting** - Monitor errors in production
7. **Implement instrumentation** - Track performance metrics
8. **Send notifications** - Keep clients updated on changes
9. **Validate inputs** - Check parameters before processing
10. **Follow Ruby conventions** - Use snake_case, proper indentation
## Common Patterns
### Authenticated Tool
```ruby
class AuthenticatedTool < MCP::Tool
def self.call(**args, server_context:)
user_id = server_context[:user_id]
raise 'Unauthorized' unless user_id
# Process authenticated request
MCP::Tool::Response.new([{ type: 'text', text: 'Success' }])
end
end
```
### Paginated Resource
```ruby
server.resources_read_handler do |params|
uri = params[:uri]
page = params[:page] || 1
data = fetch_paginated_data(page)
[{
uri: uri,
mimeType: 'application/json',
text: data.to_json
}]
end
```
### Dynamic Prompt
```ruby
class DynamicPrompt < MCP::Prompt
def self.template(args, server_context:)
user_id = server_context[:user_id]
user_data = User.find(user_id)
MCP::Prompt::Result.new(
description: "Personalized prompt for #{user_data.name}",
messages: generate_messages_for(user_data)
)
end
end
```

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@ -0,0 +1,660 @@
---
description: 'Generate a complete Model Context Protocol server project in Ruby using the official MCP Ruby SDK gem.'
mode: agent
---
# Ruby MCP Server Generator
Generate a complete, production-ready MCP server in Ruby using the official Ruby SDK.
## Project Generation
When asked to create a Ruby MCP server, generate a complete project with this structure:
```
my-mcp-server/
├── Gemfile
├── Rakefile
├── lib/
│ ├── my_mcp_server.rb
│ ├── my_mcp_server/
│ │ ├── server.rb
│ │ ├── tools/
│ │ │ ├── greet_tool.rb
│ │ │ └── calculate_tool.rb
│ │ ├── prompts/
│ │ │ └── code_review_prompt.rb
│ │ └── resources/
│ │ └── example_resource.rb
├── bin/
│ └── mcp-server
├── test/
│ ├── test_helper.rb
│ └── tools/
│ ├── greet_tool_test.rb
│ └── calculate_tool_test.rb
└── README.md
```
## Gemfile Template
```ruby
source 'https://rubygems.org'
gem 'mcp', '~> 0.4.0'
group :development, :test do
gem 'minitest', '~> 5.0'
gem 'rake', '~> 13.0'
gem 'rubocop', '~> 1.50'
end
```
## Rakefile Template
```ruby
require 'rake/testtask'
require 'rubocop/rake_task'
Rake::TestTask.new(:test) do |t|
t.libs << 'test'
t.libs << 'lib'
t.test_files = FileList['test/**/*_test.rb']
end
RuboCop::RakeTask.new
task default: %i[test rubocop]
```
## lib/my_mcp_server.rb Template
```ruby
# frozen_string_literal: true
require 'mcp'
require_relative 'my_mcp_server/server'
require_relative 'my_mcp_server/tools/greet_tool'
require_relative 'my_mcp_server/tools/calculate_tool'
require_relative 'my_mcp_server/prompts/code_review_prompt'
require_relative 'my_mcp_server/resources/example_resource'
module MyMcpServer
VERSION = '1.0.0'
end
```
## lib/my_mcp_server/server.rb Template
```ruby
# frozen_string_literal: true
module MyMcpServer
class Server
attr_reader :mcp_server
def initialize(server_context: {})
@mcp_server = MCP::Server.new(
name: 'my_mcp_server',
version: MyMcpServer::VERSION,
tools: [
Tools::GreetTool,
Tools::CalculateTool
],
prompts: [
Prompts::CodeReviewPrompt
],
resources: [
Resources::ExampleResource.resource
],
server_context: server_context
)
setup_resource_handler
end
def handle_json(json_string)
mcp_server.handle_json(json_string)
end
def start_stdio
transport = MCP::Server::Transports::StdioTransport.new(mcp_server)
transport.open
end
private
def setup_resource_handler
mcp_server.resources_read_handler do |params|
Resources::ExampleResource.read(params[:uri])
end
end
end
end
```
## lib/my_mcp_server/tools/greet_tool.rb Template
```ruby
# frozen_string_literal: true
module MyMcpServer
module Tools
class GreetTool < MCP::Tool
tool_name 'greet'
description 'Generate a greeting message'
input_schema(
properties: {
name: {
type: 'string',
description: 'Name to greet'
}
},
required: ['name']
)
output_schema(
properties: {
message: { type: 'string' },
timestamp: { type: 'string', format: 'date-time' }
},
required: ['message', 'timestamp']
)
annotations(
read_only_hint: true,
idempotent_hint: true
)
def self.call(name:, server_context:)
timestamp = Time.now.iso8601
message = "Hello, #{name}! Welcome to MCP."
structured_data = {
message: message,
timestamp: timestamp
}
MCP::Tool::Response.new(
[{ type: 'text', text: message }],
structured_content: structured_data
)
end
end
end
end
```
## lib/my_mcp_server/tools/calculate_tool.rb Template
```ruby
# frozen_string_literal: true
module MyMcpServer
module Tools
class CalculateTool < MCP::Tool
tool_name 'calculate'
description 'Perform mathematical calculations'
input_schema(
properties: {
operation: {
type: 'string',
description: 'Operation to perform',
enum: ['add', 'subtract', 'multiply', 'divide']
},
a: {
type: 'number',
description: 'First operand'
},
b: {
type: 'number',
description: 'Second operand'
}
},
required: ['operation', 'a', 'b']
)
output_schema(
properties: {
result: { type: 'number' },
operation: { type: 'string' }
},
required: ['result', 'operation']
)
annotations(
read_only_hint: true,
idempotent_hint: true
)
def self.call(operation:, a:, b:, server_context:)
result = case operation
when 'add' then a + b
when 'subtract' then a - b
when 'multiply' then a * b
when 'divide'
return error_response('Division by zero') if b.zero?
a / b.to_f
else
return error_response("Unknown operation: #{operation}")
end
structured_data = {
result: result,
operation: operation
}
MCP::Tool::Response.new(
[{ type: 'text', text: "Result: #{result}" }],
structured_content: structured_data
)
end
def self.error_response(message)
MCP::Tool::Response.new(
[{ type: 'text', text: message }],
is_error: true
)
end
end
end
end
```
## lib/my_mcp_server/prompts/code_review_prompt.rb Template
```ruby
# frozen_string_literal: true
module MyMcpServer
module Prompts
class CodeReviewPrompt < MCP::Prompt
prompt_name 'code_review'
description 'Generate a code review prompt'
arguments [
MCP::Prompt::Argument.new(
name: 'language',
description: 'Programming language',
required: true
),
MCP::Prompt::Argument.new(
name: 'focus',
description: 'Review focus area (e.g., performance, security)',
required: false
)
]
meta(
version: '1.0',
category: 'development'
)
def self.template(args, server_context:)
language = args['language'] || 'Ruby'
focus = args['focus'] || 'general quality'
MCP::Prompt::Result.new(
description: "Code review for #{language} with focus on #{focus}",
messages: [
MCP::Prompt::Message.new(
role: 'user',
content: MCP::Content::Text.new(
"Please review this #{language} code with focus on #{focus}."
)
),
MCP::Prompt::Message.new(
role: 'assistant',
content: MCP::Content::Text.new(
"I'll review the code focusing on #{focus}. Please share the code."
)
),
MCP::Prompt::Message.new(
role: 'user',
content: MCP::Content::Text.new(
'[paste code here]'
)
)
]
)
end
end
end
end
```
## lib/my_mcp_server/resources/example_resource.rb Template
```ruby
# frozen_string_literal: true
module MyMcpServer
module Resources
class ExampleResource
RESOURCE_URI = 'resource://data/example'
def self.resource
MCP::Resource.new(
uri: RESOURCE_URI,
name: 'example-data',
description: 'Example resource data',
mime_type: 'application/json'
)
end
def self.read(uri)
return [] unless uri == RESOURCE_URI
data = {
message: 'Example resource data',
timestamp: Time.now.iso8601,
version: MyMcpServer::VERSION
}
[{
uri: uri,
mimeType: 'application/json',
text: data.to_json
}]
end
end
end
end
```
## bin/mcp-server Template
```ruby
#!/usr/bin/env ruby
# frozen_string_literal: true
require_relative '../lib/my_mcp_server'
begin
server = MyMcpServer::Server.new
server.start_stdio
rescue Interrupt
warn "\nShutting down server..."
exit 0
rescue StandardError => e
warn "Error: #{e.message}"
warn e.backtrace.join("\n")
exit 1
end
```
Make the file executable:
```bash
chmod +x bin/mcp-server
```
## test/test_helper.rb Template
```ruby
# frozen_string_literal: true
$LOAD_PATH.unshift File.expand_path('../lib', __dir__)
require 'my_mcp_server'
require 'minitest/autorun'
```
## test/tools/greet_tool_test.rb Template
```ruby
# frozen_string_literal: true
require 'test_helper'
module MyMcpServer
module Tools
class GreetToolTest < Minitest::Test
def test_greet_with_name
response = GreetTool.call(
name: 'Ruby',
server_context: {}
)
refute response.is_error
assert_equal 1, response.content.length
assert_match(/Ruby/, response.content.first[:text])
assert response.structured_content
assert_equal 'Hello, Ruby! Welcome to MCP.', response.structured_content[:message]
end
def test_output_schema_validation
response = GreetTool.call(
name: 'Test',
server_context: {}
)
assert response.structured_content.key?(:message)
assert response.structured_content.key?(:timestamp)
end
end
end
end
```
## test/tools/calculate_tool_test.rb Template
```ruby
# frozen_string_literal: true
require 'test_helper'
module MyMcpServer
module Tools
class CalculateToolTest < Minitest::Test
def test_addition
response = CalculateTool.call(
operation: 'add',
a: 5,
b: 3,
server_context: {}
)
refute response.is_error
assert_equal 8, response.structured_content[:result]
end
def test_subtraction
response = CalculateTool.call(
operation: 'subtract',
a: 10,
b: 4,
server_context: {}
)
refute response.is_error
assert_equal 6, response.structured_content[:result]
end
def test_multiplication
response = CalculateTool.call(
operation: 'multiply',
a: 6,
b: 7,
server_context: {}
)
refute response.is_error
assert_equal 42, response.structured_content[:result]
end
def test_division
response = CalculateTool.call(
operation: 'divide',
a: 15,
b: 3,
server_context: {}
)
refute response.is_error
assert_equal 5.0, response.structured_content[:result]
end
def test_division_by_zero
response = CalculateTool.call(
operation: 'divide',
a: 10,
b: 0,
server_context: {}
)
assert response.is_error
assert_match(/Division by zero/, response.content.first[:text])
end
def test_unknown_operation
response = CalculateTool.call(
operation: 'modulo',
a: 10,
b: 3,
server_context: {}
)
assert response.is_error
assert_match(/Unknown operation/, response.content.first[:text])
end
end
end
end
```
## README.md Template
```markdown
# My MCP Server
A Model Context Protocol server built with Ruby and the official MCP Ruby SDK.
## Features
- ✅ Tools: greet, calculate
- ✅ Prompts: code_review
- ✅ Resources: example-data
- ✅ Input/output schemas
- ✅ Tool annotations
- ✅ Structured content
- ✅ Full test coverage
## Requirements
- Ruby 3.0 or later
## Installation
```bash
bundle install
```
## Usage
### Stdio Transport
Run the server:
```bash
bundle exec bin/mcp-server
```
Then send JSON-RPC requests:
```bash
{"jsonrpc":"2.0","id":"1","method":"ping"}
{"jsonrpc":"2.0","id":"2","method":"tools/list"}
{"jsonrpc":"2.0","id":"3","method":"tools/call","params":{"name":"greet","arguments":{"name":"Ruby"}}}
```
### Rails Integration
Add to your Rails controller:
```ruby
class McpController < ApplicationController
def index
server = MyMcpServer::Server.new(
server_context: { user_id: current_user.id }
)
render json: server.handle_json(request.body.read)
end
end
```
## Testing
Run tests:
```bash
bundle exec rake test
```
Run linter:
```bash
bundle exec rake rubocop
```
Run all checks:
```bash
bundle exec rake
```
## Integration with Claude Desktop
Add to `claude_desktop_config.json`:
```json
{
"mcpServers": {
"my-mcp-server": {
"command": "bundle",
"args": ["exec", "bin/mcp-server"],
"cwd": "/path/to/my-mcp-server"
}
}
}
```
## Project Structure
```
my-mcp-server/
├── Gemfile # Dependencies
├── Rakefile # Build tasks
├── lib/ # Source code
│ ├── my_mcp_server.rb # Main entry point
│ └── my_mcp_server/ # Module namespace
│ ├── server.rb # Server setup
│ ├── tools/ # Tool implementations
│ ├── prompts/ # Prompt templates
│ └── resources/ # Resource handlers
├── bin/ # Executables
│ └── mcp-server # Stdio server
├── test/ # Test suite
│ ├── test_helper.rb # Test configuration
│ └── tools/ # Tool tests
└── README.md # This file
```
## License
MIT
```
## Generation Instructions
1. **Ask for project name and description**
2. **Generate all files** with proper naming and module structure
3. **Use classes for tools and prompts** for better organization
4. **Include input/output schemas** for type safety
5. **Add tool annotations** for behavior hints
6. **Include structured content** in responses
7. **Implement comprehensive tests** for all tools
8. **Follow Ruby conventions** (snake_case, modules, frozen_string_literal)
9. **Add proper error handling** with is_error flag
10. **Provide both stdio and HTTP** usage examples