Excel MCP Server (uses Excel App, 100% Compatibility)

using PolyType; using StreamJsonRpc; namespace Sbroenne.ExcelMcp.Service.Rpc; /// <summary> /// Typed RPC interface for CLI↔daemon communication over named pipes. /// Replaces the hand-rolled newline-delimited JSON protocol with StreamJsonRpc (JSON-RPC 2.0). /// /// The interface has a single method that delegates to <see cref="ExcelMcpService.ProcessAsync"/>, /// preserving the existing command routing while gaining: /// - Proper error propagation (JSON-RPC error objects instead of swallowed exceptions) /// - Standard protocol (JSON-RPC 2.0 with Content-Length framing) /// - Type safety (compile-time contract between client and server) /// - Testability via <c>Nerdbank.FullDuplexStream.CreatePair()</c> /// </summary> [JsonRpcContract] [GenerateShape(IncludeMethods = MethodShapeFlags.PublicInstance)] public partial interface IExcelDaemonRpc { /// <summary> /// Sends a command to the daemon for execution. /// Wraps <see cref="ExcelMcpService.ProcessAsync"/> over the pipe transport. /// </summary> /// <param name="request">The service request with command, sessionId, and args.</param> /// <returns>The service response indicating success/failure with optional result data.</returns> Task<ServiceResponse> ProcessCommandAsync(ServiceRequest request); }