svrnty-mcp-client/samples/CodexMcpClient/Program.cs

using Svrnty.MCP.Client.Core.Exceptions;
using Svrnty.MCP.Client.Core.Models;
using Svrnty.MCP.Client.Infrastructure;

Console.WriteLine("=== Svrnty.MCP.Client - CODEX Example ===\n");

// Step 1: Configure MCP servers
var serverConfigs = new List<McpServerConfig>
{
    new McpServerConfig
    {
        Name = "codex-server",
        Transport = new StdioTransportConfig
        {
            Type = "Stdio",
            Command = "dotnet",
            Args = new[] { "run", "--project", "/home/svrnty/codex/Svrnty.MCP.Server/samples/CodexMcpServer/CodexMcpServer.csproj" }
        },
        Timeout = TimeSpan.FromSeconds(30),
        Enabled = true
    }
};

// Step 2: Create and initialize the MCP client
await using var mcpClient = new McpClient(serverConfigs);

try
{
    Console.WriteLine("Connecting to MCP servers...");
    await mcpClient.ConnectAllAsync();

    var connectedServers = await mcpClient.GetConnectedServersAsync();
    Console.WriteLine($"✓ Connected to {connectedServers.Count()} server(s)\n");

    // Step 3: List available tools from each server
    foreach (var server in connectedServers)
    {
        Console.WriteLine($"--- Tools from '{server.Name}' ---");

        try
        {
            var tools = await mcpClient.ListToolsAsync(server.Name);

            foreach (var tool in tools)
            {
                Console.WriteLine($"  • {tool.Name}");
                Console.WriteLine($"    Description: {tool.Description}");
            }

            Console.WriteLine();
        }
        catch (McpConnectionException ex)
        {
            Console.WriteLine($"  Error listing tools: {ex.Message}\n");
        }
    }

    // Step 4: Example - Search CODEX (if tool exists)
    Console.WriteLine("--- Example: Searching CODEX ---");

    try
    {
        var searchResult = await mcpClient.CallToolAsync(
            serverName: "codex-server",
            toolName: "search_codex",
            arguments: new Dictionary<string, object>
            {
                ["query"] = "Model Context Protocol",
                ["maxResults"] = 5
            }
        );

        if (searchResult.IsSuccess)
        {
            Console.WriteLine("✓ Search successful!");
            Console.WriteLine($"Results:\n{searchResult.Content}");
        }
        else
        {
            Console.WriteLine($"✗ Search failed: {searchResult.Error}");
        }
    }
    catch (ServerNotFoundException ex)
    {
        Console.WriteLine($"✗ Server not found: {ex.Message}");
    }
    catch (ToolNotFoundException ex)
    {
        Console.WriteLine($"✗ Tool not found: {ex.Message}");
    }
    catch (McpConnectionException ex)
    {
        Console.WriteLine($"✗ Connection error: {ex.Message}");
    }

    Console.WriteLine("\n--- Example: Health Check ---");

    // Step 5: Health check example
    foreach (var server in connectedServers)
    {
        try
        {
            await mcpClient.PingAsync(server.Name);
            Console.WriteLine($"✓ {server.Name} is healthy");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"✗ {server.Name} is unhealthy: {ex.Message}");
        }
    }

    Console.WriteLine("\nDisconnecting from all servers...");
    await mcpClient.DisconnectAllAsync();
    Console.WriteLine("✓ Disconnected successfully");
}
catch (Exception ex)
{
    Console.WriteLine($"\n✗ Error: {ex.Message}");
    Console.WriteLine($"Stack trace: {ex.StackTrace}");
    return 1;
}

Console.WriteLine("\n=== Example Complete ===");
return 0;