MCP TriliumNext

# MCP TriliumNext Server - Implementation Plan ## Overview Building a Model Context Protocol (MCP) server for TriliumNext note-taking application from scratch, incorporating best practices and proper architecture. ## Phase 1: Project Foundation ### 1.1 Project Structure Setup - Initialize `package.json` with MCP SDK dependencies - Create `src/` directory for source code - Set up configuration files (`.env.example`, `.gitignore`) - Establish proper Node.js module structure ### 1.2 Dependencies - `@modelcontextprotocol/sdk`: Core MCP functionality - `axios`: HTTP client for TriliumNext API calls - Development dependencies for TypeScript support ## Phase 2: Core MCP Server Implementation ### 2.1 Basic Server Skeleton ```javascript class TriliumMCPServer { constructor() { // Server initialization with proper capabilities // Environment variable configuration // Transport setup for stdio communication } } ``` ### 2.2 Essential Tools Implementation Following MCP best practices for tool design: #### `create_note` - **Purpose**: Create new notes in TriliumNext - **Inputs**: title (required), content (required), type (optional), parentNoteId (optional) - **Validation**: Title length, content sanitization, valid note types - **Output**: Note ID and success confirmation #### `search_notes` - **Purpose**: Search through TriliumNext notes - **Inputs**: query (required), limit (optional, default 10) - **Validation**: Query string sanitization, reasonable limits - **Output**: Array of matching notes with titles and IDs #### `get_note` - **Purpose**: Retrieve specific note details - **Inputs**: noteId (required) - **Validation**: Valid noteId format - **Output**: Note metadata and content #### `update_note` - **Purpose**: Update existing note content - **Inputs**: noteId (required), content (required) - **Validation**: Note existence, content sanitization - **Output**: Update confirmation ### 2.3 Error Handling Strategy - Input validation for all parameters - Graceful handling of TriliumNext API errors - Clear, user-friendly error messages - Proper HTTP status code interpretation ## Phase 3: Resources and Advanced Features ### 3.1 MCP Resources Implementation Following MCP resource patterns: #### Recent Notes Resource - **URI**: `trilium://recent-notes` - **Purpose**: Access to recently modified notes - **Format**: JSON array of note objects #### Note Tree Resource - **URI**: `trilium://note-tree/{noteId}` - **Purpose**: Hierarchical structure of notes - **Format**: Tree structure with parent-child relationships #### Search Templates Resource - **URI**: `trilium://search-templates` - **Purpose**: Predefined search queries for common use cases - **Format**: JSON array of search template objects ### 3.2 Authentication and Security - Environment-based authentication token configuration - Secure token handling (no logging of sensitive data) - Input sanitization to prevent injection attacks - Rate limiting considerations ### 3.3 Performance Optimizations - Async/await pattern for all API calls - Error retry logic with exponential backoff - Caching strategy for frequently accessed data - Connection pooling for HTTP requests ## Phase 4: Testing and Documentation ### 4.1 Testing Strategy - MCP Inspector integration for interactive testing - Sample request/response documentation - TriliumNext connectivity validation - Error scenario testing ### 4.2 Documentation Components #### Setup Guide - Installation instructions - Environment variable configuration - TriliumNext authentication setup - Claude Desktop integration guide #### Usage Examples - Tool usage examples with sample inputs/outputs - Resource access patterns - Common workflow demonstrations - Troubleshooting guide #### API Reference - Complete tool schema documentation - Resource URI specifications - Error code reference - Configuration options ## Implementation Principles ### MCP Best Practices Integration - **User Control**: Clear tool descriptions and required approvals - **Security**: Input validation and secure credential handling - **Composability**: Modular tool and resource design - **Observability**: Comprehensive logging and error reporting ### Code Quality Standards - Clear, descriptive function and variable names - Comprehensive error handling - Input validation for all user inputs - Consistent code formatting and structure ### TriliumNext Integration - Respect TriliumNext API rate limits - Handle all documented note types properly - Support hierarchical note structures - Maintain data consistency ## Success Criteria 1. All tools function correctly with TriliumNext API 2. Proper error handling for edge cases 3. Clear documentation for setup and usage 4. Successful integration with MCP Inspector 5. Claude Desktop compatibility 6. Security best practices implemented ## File Structure ``` mcp-triliumnext/ ├── src/ │ ├── index.js # Main server implementation │ ├── tools/ # Individual tool implementations │ ├── resources/ # Resource handlers │ └── utils/ # Utility functions ├── docs/ │ ├── implementation-plan.md │ ├── mcp-fundamentals.md │ └── api-reference.md ├── package.json ├── .env.example ├── .gitignore └── README.md ``` This plan ensures a robust, well-documented MCP server that follows best practices and provides comprehensive TriliumNext integration.