Implemented JSON-RPC 2.0 protocol handler for MCP communication, enabling AI agents to communicate with ColaFlow using the Model Context Protocol. **Implementation:** - JSON-RPC 2.0 data models (Request, Response, Error, ErrorCode) - MCP protocol models (Initialize, Capabilities, ClientInfo, ServerInfo) - McpProtocolHandler with method routing and error handling - Method handlers: initialize, resources/list, tools/list, tools/call - ASP.NET Core middleware for /mcp endpoint - Service registration and dependency injection setup **Testing:** - 28 unit tests covering protocol parsing, validation, and error handling - Integration tests for initialize handshake and error responses - All tests passing with >80% coverage **Changes:** - Created ColaFlow.Modules.Mcp.Contracts project - Created ColaFlow.Modules.Mcp.Domain project - Created ColaFlow.Modules.Mcp.Application project - Created ColaFlow.Modules.Mcp.Infrastructure project - Created ColaFlow.Modules.Mcp.Tests project - Registered MCP module in ColaFlow.API Program.cs - Added /mcp endpoint via middleware **Acceptance Criteria Met:** ✅ JSON-RPC 2.0 messages correctly parsed ✅ Request validation (jsonrpc: "2.0", method, params, id) ✅ Error responses conform to JSON-RPC 2.0 spec ✅ Invalid requests return proper error codes (-32700, -32600, -32601, -32602) ✅ MCP initialize method implemented ✅ Server capabilities returned (resources, tools, prompts) ✅ Protocol version negotiation works (1.0) ✅ Request routing to method handlers ✅ Unit test coverage > 80% ✅ All tests passing **Story**: docs/stories/sprint_5/story_5_1.md 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
33 lines
846 B
C#
33 lines
846 B
C#
using Microsoft.Extensions.Logging;
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namespace ColaFlow.Modules.Mcp.Application.Handlers;
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/// <summary>
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/// Handler for the 'tools/list' MCP method
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/// </summary>
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public class ToolsListMethodHandler : IMcpMethodHandler
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{
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private readonly ILogger<ToolsListMethodHandler> _logger;
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public string MethodName => "tools/list";
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public ToolsListMethodHandler(ILogger<ToolsListMethodHandler> logger)
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{
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_logger = logger;
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}
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public Task<object?> HandleAsync(object? @params, CancellationToken cancellationToken)
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{
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_logger.LogDebug("Handling tools/list request");
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// TODO: Implement in Story 5.11 (Core MCP Tools)
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// For now, return empty list
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var response = new
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{
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tools = Array.Empty<object>()
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};
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return Task.FromResult<object?>(response);
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}
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}
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