v1.7.2

What's Changed

• Fix array schema generation to include required 'items' property by @gambtho in #10

New Contributors

• @gambtho made their first contribution in #10

Full Changelog: v1.7.1...v1.7.2

v1.7.1

Full Changelog: v1.7.0...v1.7.1

v1.7.0

Full Changelog: v1.6.5...v1.7.0

v1.6.5

Full Changelog: v1.6.4...v1.6.5

v1.6.4

🚀 Embedded Transport Implementation

This release introduces a complete embedded transport implementation for zero-overhead in-process MCP communication.

✨ New Features

• Embedded Transport: Direct in-process communication using Go channels with no serialization overhead
• Client Integration: New WithEmbedded() option for seamless client configuration
• Server Integration: New AsEmbedded() method following the same pattern as other transports
• Full MCP Protocol Support: Complete bidirectional communication for all MCP operations

🔧 Implementation Details

• Thread-safe concurrent operations using atomic operations and sync.Map
• Proper JSON-RPC 2.0 message handling and notification routing
• Clean channel-based architecture eliminating mutex usage
• Comprehensive integration tests covering tools, resources, prompts, and sampling

📚 Examples

• Complete embedded transport example demonstrating all MCP capabilities
• Integration tests showing concurrent operations and notification handling

🎯 Use Cases

Perfect for:

• Library integration scenarios
• Testing and development environments
• High-performance in-process MCP communication
• Scenarios where network overhead should be eliminated

🧪 Testing

• All existing tests continue to pass
• New comprehensive integration tests added
• Example application demonstrates full functionality

This embedded transport provides the fastest possible MCP communication method while maintaining full protocol compatibility.

v1.6.3

Full Changelog: v1.6.2...v1.6.3

v1.6.2

🚀 New Features

Embedded Transport

• Added in-process embedded transport for zero-overhead communication
• Client adapter following the same pattern as other transports
• Perfect for testing, library integration, and embedded use cases

📦 New Components

• transport/embedded/ - Core embedded transport implementation
• client/embedded_transport.go - Client adapter for embedded transport
• examples/embedded/ - Working example demonstrating usage

🔧 Usage

// Create transport pair
serverTransport, clientTransport := embedded.NewTransportPair()

// Use with MCP server
server := server.NewServer("my-app")

// Use with MCP client  
client := client.NewEmbeddedTransport(clientTransport)

✅ Compatibility

• Full backward compatibility maintained
• All existing tests pass
• No breaking changes

🎯 Use Cases

• Testing: Fast, reliable test environments
• Library Integration: Embed MCP servers directly in applications
• Microservices: In-process communication between components
• Development: Quick prototyping without network setup

v1.6.1

Full Changelog: v1.6.0...v1.6.1

v1.6.0

Full Changelog: v1.5.5...v1.6.0

v1.5.5

🚀 MCP Session Architecture Implementation

✨ New Features

• Enhanced ClientInfo struct with Env and Roots fields for comprehensive session data
• ClientSession convenience methods: Env(), Roots(), Capabilities() for easy access
• Transport-aware session data extraction - environment from transport headers/process, not init params
• Automated workspace root fetching following complete MCP protocol flow
• Proper response handling with request tracking for roots/list requests

🔧 Implementation Details

• Server automatically detects client roots capability and sends roots/list requests
• Workspace roots extracted from both clientInfo during initialization AND via automated roots/list
• Environment data correctly sourced from transport layer per MCP specification
• Full MCP compliance across all three protocol versions (2024-11-05, 2025-03-26, draft)

🧪 Testing & Quality

• Added comprehensive MCP compliance tests for all three protocol specifications
• Added session integration tests with complete flow verification
• Enhanced workspace roots testing with URI-to-path conversion validation
• All 500+ tests passing across all packages and protocol versions

📚 Documentation

• Added MCP_Session_Architecture.md with detailed implementation notes
• Documented key discovery: roots are client capability given to server for file access awareness

✅ Compliance & Standards

• Maintains pure API contract - exactly one method per operation
• Follows Go development rules: minimal locks, test-first approach, idiomatic patterns
• Zero breaking changes - seamless integration with existing functionality

This release provides production-ready session management and automated root fetching while maintaining full backward compatibility.