# Changelog
## v2025.9.1
### Performance Improvements
* **Reduced Token Usage in search-symbols Tool**: Optimized the `search-symbols` tool to significantly reduce token consumption:
* Introduced lightweight `SymbolSummary` schema for search results with only essential fields (id, name, type, truncated description, tags, permissions, scopes)
* Removed heavy fields from search results: `fields`, `arguments`, `example`, `imports`, `files`, `parent`, `returnType`
* Added automatic description truncation to 200 characters with ellipsis
* Full symbol details remain available via the `describe-symbols` tool when needed
* This change maintains backward compatibility with the recommended workflow (search → describe → analyze)
## v2025.9.0
* Updated config files.
* Added scopes and permissions info.
## v2025.8.1
### Major Refactoring
This release includes a comprehensive architectural refactoring to improve code organization, maintainability, and extensibility.
#### Architecture Changes
* **Modular Server Architecture**: Refactored server implementation into a modular structure:
* Introduced `BaseServer` abstract class with unified tool management and extensibility pattern
* Separated transport implementations into `StdioServer` and `StreamableHttpServer` classes
* Implemented `modify()` pattern for registering tools, resources, and prompts
* **Session Management**: Added comprehensive session management system:
* New `SessionManager` class for managing multiple concurrent sessions
* Support for session lifecycle (create, get, delete, clear)
* Default session support for backward compatibility
* Session-aware tool execution with context passing
* **Code Organization**: Improved project structure:
* Moved server implementations to `src/server/` directory
* Organized tools into `src/tools/symbols/` directory
* Added resources system in `src/resources/` directory
* Added prompts system in `src/prompts/` directory
* Separated session management into `src/session/` directory
#### New Features
* **Resources System**: Added resource registration system for exposing static content:
* Resource registration via `registerResources()` function
* Support for multiple resource types with MIME type handling
* Resource URI generation and content retrieval
* **Prompts System**: Added prompt template system:
* `create-extend-app` prompt for generating Extend app creation workflows
* Support for repository-based prompts with autocomplete
* Scenario, template, language, and repository selection with validation
* **Enhanced Symbol Tools**: Improved symbol search and description tools:
* Better fuzzy matching using Levenshtein distance algorithm
* Unified symbol scoring system (replaces separate function/struct scoring)
* Improved search term parsing and validation
* Enhanced pagination with validation
#### Code Quality Improvements
* **Linting and Formatting**: Added code quality tools:
* ESLint configuration with Airbnb base rules and TypeScript support
* Prettier configuration for consistent code formatting
* Updated TypeScript configuration with improved module resolution (`NodeNext`)
* Added source maps and declaration maps for better debugging
* **Type Safety**: Enhanced type safety throughout:
* Comprehensive Zod schemas for validation
* Improved TypeScript configuration with stricter settings
* Better type inference and error handling
* **Configuration**: Improved configuration management:
* Centralized configuration in `src/config.ts` with Zod validation
* Support for multiple environment variable names (e.g., `MCP_TRANSPORT` or `TRANSPORT`)
* Better default values and validation
#### Functionality Migration
* **Helpers Migration**: All functionality from `src/helpers.ts` has been migrated and improved:
* `parseSearchQuery` → `parseSearchTerms` (improved parsing logic)
* `fuzzyMatch` → `fuzzyMatch` (enhanced with Levenshtein distance algorithm)
* `calculateFunctionMatchScore` + `calculateStructMatchScore` → `calculateSymbolMatchScore` (unified, more flexible)
* `paginateResults` → `paginateSymbols` (same functionality, better naming)
#### HTTP Server Enhancements
* **Security**: Enhanced HTTP server security:
* Helmet.js integration for security headers
* CORS support with configurable allowed origins
* Rate limiting (100 requests per 15 minutes)
* Request size limits (10MB)
* **Session Handling**: Improved HTTP session management:
* Session ID generation and tracking
* Transport caching per session
* Proper session cleanup on disconnect
#### Dependencies
* Updated dependencies for improved functionality and security
* Added new dependencies: `cors`, `express-rate-limit`, `helmet`, `zod`
* Updated MCP SDK to latest version
#### Breaking Changes
* **Transport Environment Variable**: The `TRANSPORT` environment variable now accepts `http` instead of `streamableHttp` (though `streamableHttp` is still accepted for backward compatibility)
* **Module System**: Changed from `ES2022`/`Bundler` to `NodeNext` module resolution
* **File Structure**: Several files have been moved or renamed - see architecture changes above
## v2025.8.0
* Updated config files.
## v2025.7.0
### Initial Release
This is the initial release of the Extend SDK MCP Server, providing Model Context Protocol integration for AccelByte Extend SDK.
#### Core Features
* **MCP Server Implementation**: Full Model Context Protocol server implementation with tool support
* **Transport Support**:
* STDIO transport (default) for local development and integration
* Streamable HTTP transport for remote server deployments
* **Docker Support**: Containerized deployment with Dockerfile and entrypoint script
#### Tools
The following MCP tools are available for searching and describing Extend SDK symbols:
* **`search_functions`** – Search for functions by name, tags, or description with fuzzy matching support
* **`search_models`** – Search for models by name, tags, or description with fuzzy matching support
* **`describe_function`** – Get detailed information about a specific function by its ID
* **`describe_model`** – Get detailed information about a specific model by its ID
* **`get_bulk_functions`** – Retrieve multiple functions with pagination (experimental)
* **`get_bulk_models`** – Retrieve multiple models with pagination (experimental)
#### Extend SDK Support
* **Multi-Language Support**: Configuration files for all Extend SDK languages:
* Go Extend SDK (default)
* Python Extend SDK
* C# Extend SDK
* Java Extend SDK
* **Symbol Definitions**: Comprehensive YAML configuration files containing function and model definitions for all Extend SDK services:
* Achievement, AMS, Basic, Challenge, Chat, CloudSave, CSM
* GameTelemetry, GDPR, Group, IAM, Inventory, Leaderboard, Legal
* Lobby, LoginQueue, Match2, Platform, Reporting, SeasonPass
* Session, SessionHistory, Social, UGC
#### Configuration
* **Environment Variables**:
* `TRANSPORT`: Transport type (`stdio` or `streamableHttp`, default: `stdio`)
* `PORT`: HTTP server port for streamable HTTP transport (default: `3000`)
* `CONFIG_DIR`: Directory containing YAML config files (default: `config/go`)
* `LOG_LEVEL`: Logging level (`debug`, `info`, `warn`, `error`, default: `info`)
* `NODE_ENV`: Environment mode (`development` or `production`)
#### Development & CI/CD
* **CI/CD Pipelines**:
* Jenkins pipeline for automated builds and deployments
* GitHub Actions workflow for container image publishing to GHCR
* **Documentation**: Comprehensive README with setup instructions for Cursor and other MCP clients
* **Development Tools**: TypeScript project with build scripts and development workflow
