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ProtocolReferenceMCPAG-UI

coffeeshop-agent

by thangchung

Reference .NET implementations of A2A, MCP, and AG-UI protocols

C#
Updated Nov 28, 2025
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Summary

Implements .NET reference components for agent-to-agent (A2A) communication, Microsoft Communication Protocol (MCP), and AG-UI. Provides protocol handlers, message models, and sample workflows so .NET services can participate in multi-agent conversations and UI-driven agent sessions. Includes C# SDK pieces and example integrations that make it easier to adopt Microsoft Agent Framework conventions in production stacks. See the Agent-to-Agent Protocol (A2A) and Model Context Protocol (MCP) references to align with core interoperability.

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Why It Matters

As agents interact directly, standardized protocols are the backbone of reliable trust signals and reproducible evaluations. This repo gives .NET teams a clear, interoperable implementation of A2A, MCP and AG-UI conventions so agent interactions can be logged, audited, and measured consistently. That consistency is essential for building agent track records, running A2A evaluation, and integrating reputation tooling across heterogeneous systems. For broader compatibility, also explore the Open Agent Specification (Agent Spec).

When to Use

.NET and Microsoft-centric teams implementing protocol-compliant agent communication and UI integration for multi-agent systems. Leverage the AG-UI Protocol to streamline UI-driven agent sessions alongside A2A.

Real-World Examples

  • Implement standard A2A messaging for .NET agents to enable cross-agent delegation and logging
  • Integrate AG-UI protocol flows so web UIs can drive and observe agent sessions
  • Add protocol-compliant hooks to capture agent interaction data for reputation and A2A evaluation
Topics
a2a-protocolag-ui-protocolagent-frameworkagentic-aiagentsaidotnetmcpmicrosoftmicrosoft-agent-framework+3 more
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microsoft-agent-framework
Keywords
a2a-protocolmulti-agent trustmcpag-ui-protocol
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