2-Architectural-Design.md•3.84 kB
Architectural Design: GitHub Repository Analyzer MCP Server
===========================================================
System Components
-----------------
The GitHub Repository Analyzer is built with a modular architecture consisting of four main components:
### 1\. MCP Server
This is the core component that implements the Model Context Protocol and acts as the interface between LLM clients and the GitHub API. The MCP Server:
- Registers and exposes tools and resources
- Handles communication with LLM clients
- Manages authentication and session state
- Processes requests and returns responses in MCP-compatible formats
### 2\. GitHub API Client
This component handles all interactions with the GitHub API, including:
- Authentication with GitHub
- Making API requests
- Handling rate limiting
- Error management and retries
- Parsing GitHub responses
### 3\. Analysis Tools
These are specialized functions that perform specific analysis tasks:
- Repository information retrieval
- Issue listing and analysis
- Commit history extraction
- Activity metrics calculation
- Chart and visualization generation
### 4\. Data Resources
These provide access to repository data as resources:
- README content
- Repository documentation
- Other file content as needed
Component Interaction Flow
--------------------------
![System Architecture Diagram]
1. **User Request**: A user asks an LLM client (like Claude Desktop) a question about a GitHub repository
2. **Tool Discovery**: The LLM client queries the MCP Server to discover available tools
3. **Tool Selection**: The LLM determines which tools are needed to answer the user's question
4. **Tool Invocation**: The LLM client calls the appropriate tools on the MCP Server
5. **GitHub Interaction**: The MCP Server uses the GitHub API Client to retrieve requested data
6. **Data Processing**: The server processes and analyzes the raw GitHub data
7. **Response Generation**: The processed data is returned to the LLM client
8. **User Response**: The LLM client uses the data to generate an informed response for the user
Data Flow Diagram
-----------------
```
User Question → LLM Client → MCP Server → GitHub API Client → GitHub API
↓
User Response ← LLM Client ← Processed Data ← MCP Server ← Raw GitHub Data
```
Tool Architecture
-----------------
Each tool in the system follows a standard pattern:
1. **Input Definition**: Clearly defined parameters (e.g., repository name, time period)
2. **Processing Logic**: The analysis or retrieval logic that uses the GitHub API
3. **Output Formatting**: Structured response that's useful for LLM interpretation
4. **Error Handling**: Graceful handling of API limits, authentication issues, and other potential errors
Security Considerations
-----------------------
The architecture incorporates several security measures:
- GitHub API tokens are stored as environment variables, not hardcoded
- The server only exposes specific, controlled functionality
- API requests are limited to explicitly requested repositories
- Error messages are designed to avoid leaking sensitive information
Extensibility Design
--------------------
The system is designed to be extensible:
- New tools can be added by creating additional functions
- Existing tools can be enhanced without disrupting the overall architecture
- Additional API integrations could be added beyond GitHub
Checkpoint List
---------------
- [x] Understand the four main components of the system
- [x] Visualize the flow of data between components
- [x] Comprehend the standard pattern for tool implementation
- [x] Recognize the security considerations in the design
- [x] Understand how the system is designed for extensibility