Tweak the file-based MCP server sample (#1019)

samples/FileBasedMcpServer/Program.cs

@@ -1,4 +1,4 @@
-#!/usr/bin/env -S dotnet run --
+#!/usr/bin/env dotnet
 #:package Microsoft.Extensions.Hosting
 #:project ../../src/ModelContextProtocol/ModelContextProtocol.csproj
 

samples/FileBasedMcpServer/README.md

@@ -1,64 +1,59 @@
 # File-Based MCP Server Sample
 
-This sample demonstrates how to create a complete MCP (Model Context Protocol) server using .NET 10's file-based programs feature. Unlike traditional .NET projects that require a `.csproj` file, file-based programs allow you to write and run complete applications in a single `.cs` file.
+This sample demonstrates how to create a complete MCP (Model Context Protocol) server using [.NET 10's file-based programs feature](https://learn.microsoft.com/dotnet/csharp/fundamentals/tutorials/file-based-programs). Unlike traditional .NET projects that require a `.csproj` file, file-based programs allow you to write and run complete applications in a single `.cs` file.
-
-## Requirements
-
-- .NET 10 SDK (RC2 or later)
-- No project file required!
 
 ## Running the Sample
 
 Simply run the Program.cs file directly:
 
 ```bash
-dotnet run Program.cs
+./Program.cs
 ```
 
 The server will start and listen for MCP messages on stdin/stdout (stdio transport).
 
-### Making it Executable (Unix/Linux/macOS)
-
-On Unix-like systems, you can make the file executable:
-
-```bash
-chmod +x Program.cs
-./Program.cs
-```
-
-Note: The shebang line uses `/usr/bin/env` to locate `dotnet`, so ensure it's in your PATH.
-
 ## Testing the Server
 
-You can test the server by using `@modelcontextprotocol/inspector`, any stdio-compatible client, or sending JSON-RPC messages to stdin. Here's an example:
+You can test the server by using `@modelcontextprotocol/inspector`, any stdio-compatible client, or sending JSON-RPC messages to stdin.
+
+### Using the Inspector
 
-### Initialize the server:
 ```bash
-echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test-client","version":"1.0"}}}' | dotnet run Program.cs
+npx @modelcontextprotocol/inspector ./Program.cs
 ```
 
-### List available tools:
+### Using STDIN
+
+#### Initialize the server
+
+```bash
+echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test-client","version":"1.0"}}}' | ./Program.cs
+```
+
+#### List available tools
+
 ```bash
 (
   echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test-client","version":"1.0"}}}'
   sleep 0.5
   echo '{"jsonrpc":"2.0","id":2,"method":"tools/list","params":{}}'
   sleep 1
-) | dotnet run Program.cs 2>/dev/null | grep '^{' | jq .
+) | ./Program.cs 2>/dev/null | grep '^{' | jq .
 ```
 
-### Call the echo tool:
+#### Call the echo tool
+
 ```bash
 (
   echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test-client","version":"1.0"}}}'
   sleep 0.5
   echo '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"echo","arguments":{"message":"Hello, MCP!"}}}'
   sleep 1
-) | dotnet run Program.cs 2>/dev/null | grep '^{' | jq .
+) | ./Program.cs 2>/dev/null | grep '^{' | jq .
 ```
 
 ## Reference
 
-- [File-Based Programs Tutorial](https://learn.microsoft.com/en-us/dotnet/csharp/fundamentals/tutorials/file-based-programs)
+- [File-Based Programs Tutorial](https://learn.microsoft.com/dotnet/csharp/fundamentals/tutorials/file-based-programs)
-- [C# Preprocessor Directives for File-Based Apps](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/preprocessor-directives#file-based-apps)
+- [C# Preprocessor Directives for File-Based Apps](https://learn.microsoft.com/dotnet/csharp/language-reference/preprocessor-directives#file-based-apps)
 - [Model Context Protocol Specification](https://modelcontextprotocol.io/specification/)