php-sdk/CHANGELOG.md

CHANGELOG

0.1

• Add Model Context Protocol (MCP) implementation for LLM-application communication
• Add JSON-RPC based protocol handling with JsonRpcHandler
• Add three core MCP capabilities:
  • Resources: File-like data readable by clients (API responses, file contents)
  • Tools: Functions callable by LLMs (with user approval)
  • Prompts: Pre-written templates for specific tasks
• Add multiple transport implementations:
  • Symfony Console Transport for testing and CLI applications
  • Stream Transport supporting Server-Sent Events (SSE) and HTTP streaming
  • STDIO transport for command-line interfaces
• Add capability chains for organizing features:
  • ToolChain for tool management
  • ResourceChain for resource management
  • PromptChain for prompt template management
• Add Server component managing transport connections
• Add request/notification handlers for MCP operations
• Add standardized interface enabling LLMs to interact with external systems
• Add support for building LLM "plugins" with extra context capabilities