float-mcp

# Float MCP Server - Bug Fixes and Code Quality Improvements ## Executive Summary The Float MCP Server code review has identified 89+ critical issues requiring systematic resolution across security, performance, architecture, and maintainability. This PRD outlines a structured approach to address these issues through phased implementation. ## Project Goals 1. **Security Hardening**: Eliminate all critical security vulnerabilities including API key exposure, race conditions, and information leakage 2. **Performance Optimization**: Resolve memory leaks, implement caching, and optimize algorithmic complexity 3. **Architecture Consolidation**: Unify dual tool architecture and implement proper separation of concerns 4. **Type Safety Enhancement**: Fix type inconsistencies and unsafe assertions throughout codebase 5. **Production Readiness**: Ensure robust error handling, resource cleanup, and scalability ## Scope ### In Scope - Fix all 8 critical security vulnerabilities - Resolve 22 high-priority performance and runtime issues - Address 40+ medium-priority architectural and maintainability concerns - Implement comprehensive testing strategy - Documentation and deployment improvements ### Out of Scope - Major feature additions or API changes - Complete rewrite or technology stack changes - Third-party integrations beyond Float API ## Success Criteria 1. **Security**: Zero high-risk vulnerabilities in security audit 2. **Performance**: Sub-500ms response times for 95% of API calls 3. **Reliability**: 99.9% uptime with proper error handling and recovery 4. **Maintainability**: Consolidated architecture with single tool pattern 5. **Type Safety**: Zero `any` types and proper generic constraints throughout ## Technical Requirements ### Phase 1: Critical Security & Bug Fixes (Week 1) - Remove API keys from repository history - Fix race conditions in rate limiting - Resolve parameter destructuring bugs - Implement proper resource cleanup - Add request timeout handling ### Phase 2: Performance & Memory Optimization (Weeks 2-3) - Implement caching layer for API responses - Add connection pooling and request deduplication - Fix memory leaks in global state management - Optimize algorithmic complexity issues - Add circuit breaker patterns ### Phase 3: Architecture Consolidation (Weeks 4-6) - Choose and implement single tool pattern - Refactor God objects and implement dependency injection - Separate transport from business logic - Standardize error handling across layers - Implement proper configuration management ### Phase 4: Type Safety & Quality Improvements (Weeks 7-8) - Eliminate unsafe type assertions - Standardize ID types across schemas - Add comprehensive generic type constraints - Implement runtime validation improvements - Add integration and performance tests ## Risk Assessment ### High Risk Areas - API key removal from git history (potential service disruption) - Rate limiting refactoring (could affect API quota management) - Architecture consolidation (large code changes) - Memory leak fixes (require careful testing) ### Mitigation Strategies - Staged rollout with comprehensive testing - Feature flags for new implementations - Rollback plans for each major change - Extensive monitoring and logging during deployment ## Success Metrics 1. **Code Quality**: ESLint/TypeScript errors reduced to zero 2. **Test Coverage**: 90%+ coverage for critical paths 3. **Performance**: Memory usage stable under load testing 4. **Security**: Clean security audit results 5. **Developer Experience**: Reduced cognitive complexity metrics ## Timeline - **Phase 1**: 1 week (Critical fixes) - **Phase 2**: 2 weeks (Performance optimization) - **Phase 3**: 3 weeks (Architecture consolidation) - **Phase 4**: 2 weeks (Quality improvements) - **Total**: 8 weeks for complete resolution ## Resources Required - Senior TypeScript/Node.js developer (primary) - Security review specialist (consulting) - QA engineer for testing strategy - DevOps engineer for deployment pipeline ## Dependencies - Float API access maintained during refactoring - No breaking changes to MCP protocol interface - Backwards compatibility for existing tool configurations - Coordination with any concurrent feature development