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babylon-mcp/ROADMAP.md
Michael Mainguy a3e027ef02 Initial commit: Babylon MCP server 
- MCP server infrastructure with Express and SSE transport
- Repository management for BabylonJS repos (Documentation, Babylon.js, havok)
- Comprehensive test suite with 100% coverage (87 tests passing)
- All code meets standards (files <100 lines, functions <20 lines)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-22 14:42:47 -06:00

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Babylon MCP Server - Development Roadmap

Vision

Build an MCP (Model Context Protocol) server that helps developers working with Babylon.js by providing intelligent documentation search and sandbox examples. The MCP server serves as a canonical, token-efficient source for Babylon.js framework information when using AI agents, while incorporating community feedback to continuously improve search relevance.

Documentation Source

Phase 1: Core MCP Infrastructure & Documentation Indexing

Goal: Establish foundational MCP server with documentation search from the canonical GitHub source

1.1 MCP Server Setup

  • Install and configure MCP SDK (@modelcontextprotocol/sdk)
  • Implement MCP server with HTTP transport (SSE)
  • Define MCP server metadata and capabilities
  • Create basic server lifecycle management (startup, shutdown, error handling)

1.2 Documentation Repository Integration

  • Clone and set up local copy of BabylonJS/Documentation repository
  • Implement automated git pull mechanism for updates
  • Parse documentation file structure (markdown files, code examples)
  • Extract metadata from documentation files (titles, categories, versions)
  • Create documentation change detection system

1.3 Search Index Implementation

  • Design indexing strategy for markdown documentation
  • Implement vector embeddings for semantic search (consider OpenAI embeddings or local alternatives)
  • Create full-text search index (SQLite FTS5 or similar)
  • Index code examples separately from prose documentation
  • Implement incremental index updates (only reindex changed files)

1.4 Basic Documentation Search Tool

  • Implement MCP tool: search_babylon_docs
    • Input: search query, optional filters (category, API section)
    • Output: ranked documentation results with context snippets and file paths
  • Return results in token-efficient format (concise snippets vs full content)
  • Add relevance scoring based on semantic similarity and keyword matching
  • Implement result deduplication

1.5 Documentation Retrieval Tool

  • Implement MCP tool: get_babylon_doc
    • Input: specific documentation file path or topic identifier
    • Output: full documentation content optimized for AI consumption
  • Format content to minimize token usage while preserving clarity
  • Include related documentation links in results

Phase 2: Sandbox Examples Integration

Goal: Enable discovery and search of Babylon.js Playground examples

2.1 Playground Data Source

  • Research Babylon.js Playground structure and API
  • Identify authoritative source for playground examples
  • Determine if examples are in Documentation repo or need separate scraping
  • Design data model for playground examples

2.2 Example Indexing

  • Implement scraper/parser for playground examples
  • Extract: title, description, code, tags, dependencies
  • Index example code with semantic understanding
  • Link examples to related documentation topics
  • Store example metadata efficiently

2.3 Example Search Tool

  • Implement MCP tool: search_babylon_examples
    • Input: search query, optional filters (features, complexity)
    • Output: ranked examples with descriptions and playground URLs
  • Return code snippets in token-efficient format
  • Add "similar examples" recommendations
  • Include difficulty/complexity indicators

Phase 3: Token Optimization & Caching

Goal: Minimize token usage for AI agents while maintaining quality

3.1 Response Optimization

  • Implement smart content summarization for long documentation
  • Create tiered response system (summary → detailed → full content)
  • Remove redundant information from responses
  • Optimize markdown formatting for AI consumption
  • Add token count estimates to responses

3.2 Intelligent Caching

  • Implement query result caching (Redis or in-memory)
  • Cache frequently accessed documentation sections
  • Add cache invalidation on documentation updates
  • Track cache hit rates and optimize cache strategy
  • Implement cache warming for popular queries

3.3 Context Management

  • Implement MCP resource: babylon_context
    • Provides common context (current version, key concepts) for AI agents
    • Reduces need to repeatedly fetch basic information
  • Create canonical response templates for common questions
  • Add version-specific context handling

Phase 4: Feedback Collection System

Goal: Allow users to provide feedback on search result usefulness

4.1 Database Design

  • Choose database (SQLite for simplicity, PostgreSQL for production scale)
  • Design schema for:
    • Search queries and returned results
    • User feedback (usefulness scores, relevance ratings)
    • Query-result effectiveness mappings
    • Anonymous session tracking

4.2 Feedback Submission

  • Implement MCP tool: provide_feedback
    • Input: result identifier, query, usefulness score (1-5), optional comment
    • Output: confirmation and feedback ID
  • Store feedback with query context
  • Implement basic spam prevention
  • Add feedback submission via Express REST API (optional web interface)

4.3 Feedback Analytics Foundation

  • Create queries for feedback aggregation
  • Implement basic feedback score calculations
  • Design feedback reporting structure
  • Add feedback data export capabilities

Phase 5: Learning & Ranking Optimization

Goal: Use collected feedback to improve search result relevance

5.1 Feedback-Driven Ranking

  • Integrate feedback scores into search ranking algorithm
  • Implement boost factors for highly-rated results
  • Add penalty factors for low-rated results
  • Create decay function (recent feedback weighted higher)
  • Test ranking improvements with historical queries

5.2 Query Understanding

  • Analyze successful searches to identify patterns
  • Implement query expansion based on feedback
  • Add synonym detection for common Babylon.js terms
  • Create query-to-topic mapping
  • Implement "did you mean" suggestions

5.3 Result Quality Monitoring

  • Track result click-through rates (if applicable)
  • Identify zero-result queries for improvement
  • Monitor feedback trends over time
  • Create alerts for sudden quality drops
  • Implement A/B testing framework for ranking changes

Phase 6: Feature Requests & Community Engagement

Goal: Enable users to suggest improvements and vote on feature requests

6.1 Suggestion Collection

  • Extend database schema for feature requests/improvements
  • Implement MCP tool: submit_suggestion
    • Input: suggestion text, category (documentation, example, feature)
    • Output: suggestion ID for tracking
  • Add suggestion categorization and tagging
  • Implement duplicate detection for similar suggestions

6.2 Voting System

  • Implement MCP tool: vote_on_suggestion
    • Input: suggestion ID, vote (up/down)
    • Output: updated vote count
  • Design anonymous voting with abuse prevention
  • Add vote weight based on user activity (optional)
  • Implement vote aggregation and trending calculations

6.3 Suggestion Discovery

  • Implement MCP tool: browse_suggestions
    • Input: filters (category, status, sort order)
    • Output: paginated list of suggestions with vote counts
  • Add search within suggestions
  • Create status tracking (new, under review, implemented, rejected)
  • Add suggestion updates and resolution tracking

6.4 Community Dashboard (Optional)

  • Create web interface for browsing suggestions
  • Add suggestion detail pages with discussion
  • Implement suggestion status updates by maintainers
  • Add notification system for suggestion updates

Phase 7: Advanced Features & Quality

Goal: Enhance capabilities and ensure production readiness

7.1 Multi-Version Support

  • Detect Babylon.js versions in Documentation repo
  • Index documentation for multiple versions separately
  • Add version parameter to search tools
  • Implement version comparison capabilities
  • Create migration guides between versions

7.2 Code-Aware Search

  • Implement code pattern search in examples
  • Add TypeScript/JavaScript syntax understanding
  • Create API signature search
  • Add "find usage examples" for specific APIs
  • Implement code-to-documentation linking

7.3 Performance & Scalability

  • Optimize search query performance (< 500ms p95)
  • Implement connection pooling for database
  • Add request queuing for high load
  • Optimize memory usage for large indexes
  • Implement graceful degradation under load

7.4 Testing & Quality Assurance

  • Write unit tests for core indexing and search logic
  • Create integration tests for MCP tools
  • Add end-to-end tests for critical workflows
  • Implement regression testing for ranking changes
  • Add performance benchmarks and monitoring

Phase 8: Deployment & Operations

Goal: Make the server production-ready and maintainable

8.1 Deployment Infrastructure

  • Create Dockerfile for containerization
  • Set up docker-compose for local development
  • Implement configuration management (environment variables)
  • Create database migration system
  • Add health check endpoints

8.2 Automation & CI/CD

  • Set up GitHub Actions for testing
  • Implement automated builds and releases
  • Create automated documentation update workflow
  • Add automated index rebuilding schedule
  • Implement version tagging and release notes

8.3 Monitoring & Observability

  • Add structured logging (JSON format)
  • Implement metrics collection (Prometheus-compatible)
  • Create performance dashboards
  • Add error tracking and alerting
  • Implement trace logging for debugging

8.4 Documentation & Onboarding

  • Write installation guide for MCP server
  • Create configuration documentation
  • Document all MCP tools with examples
  • Add troubleshooting guide
  • Create developer contribution guide

Technical Architecture Decisions

MCP Implementation

  • SDK: @modelcontextprotocol/sdk (official TypeScript SDK)
  • Transport: HTTP with Server-Sent Events (SSE) on port 3001
  • MCP Endpoint: /mcp/sse
  • Tools: search_babylon_docs, get_babylon_doc, search_babylon_examples, provide_feedback, submit_suggestion, vote_on_suggestion, browse_suggestions
  • Resources: babylon_context (common framework information)

Search & Indexing

  • Vector Search: OpenAI embeddings or local model (all-MiniLM-L6-v2)
  • Full-Text Search: SQLite FTS5 for simplicity, Elasticsearch for scale
  • Hybrid Approach: Combine semantic and keyword search for best results

Data Storage

  • Primary Database: SQLite (development/small scale) → PostgreSQL (production)
  • Cache: Redis for query results and frequently accessed docs
  • File Storage: Local clone of BabylonJS/Documentation repository

Token Optimization Strategy

  • Return concise snippets by default (50-200 tokens)
  • Offer detailed responses on demand
  • Cache common context to avoid repetition
  • Use efficient markdown formatting
  • Implement smart content truncation

Security & Privacy

  • Anonymous feedback collection (no PII)
  • Rate limiting on all MCP tools
  • Input validation and sanitization
  • Secure database access patterns
  • No authentication required (open access)

Success Metrics

Phase 1-2 (Core Functionality)

  • Documentation indexing: 100% of BabylonJS/Documentation repo
  • Search response time: < 500ms p95
  • Search relevance: > 80% of queries return useful results
  • Token efficiency: Average response < 300 tokens

Phase 3-5 (Optimization & Feedback)

  • Cache hit rate: > 60%
  • Feedback collection rate: > 5% of searches
  • Ranking improvement: Increase in positive feedback over time
  • Query success rate: < 5% zero-result queries

Phase 6-8 (Community & Production)

  • Suggestion collection: Active community participation
  • Uptime: > 99%
  • Documentation freshness: < 24 hour lag from repo updates
  • Test coverage: > 80% of core functionality

Future Enhancements (Post-Launch)

  • Integration with Babylon.js GitHub issues for additional context
  • Real-time collaborative debugging sessions
  • Visual search for shader/rendering effects
  • Performance optimization recommendations based on best practices
  • Integration with TypeScript Language Server for IDE features
  • Multi-language documentation support
  • Community-contributed solutions and patterns library
  • Interactive tutorial generation based on user goals