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Comprehensive Guide to Model Context Protocol
/MCP: Client-Host-Server Communication
/Message Flow Architecture

Message Flow Architecture

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Message Flow Architecture

  1. Discovery Phase: Client discovers available servers through the host
  2. Capability Negotiation: Client and server agree on supported features
  3. Authentication: Secure connection establishment
  4. Request/Response Cycle: Actual tool invocation and data exchange
  5. Session Management: Maintaining connection state and handling cleanup