System.CommandLine Example

cli.cs

using System.CommandLine;

var queryArgument = new Argument<string?>(
            name: "query",
            description: "Ask magi your query!",
            getDefaultValue: () => null);

var rootCommand = new RootCommand("magi - Microsoft Graph API's AI");
rootCommand.AddArgument(queryArgument);

var configFileArgument = new Option<string?>(
    name: "--config",
    description: "magi uses this file as the config.",
    getDefaultValue: () => null
);
rootCommand.AddGlobalOption(configFileArgument);

rootCommand.SetHandler(async (query, configFile) =>
{
   // LLM + Microsoft Graph API here
}, queryArgument, configFileArgument);

return await rootCommand.InvokeAsync(args);