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73d2a06
Initial check-in for the A2A Agent implementation
markwallace-microsoft 1f90951
Merge branch 'main' into users/markwallace/a2a_agent
markwallace-microsoft 21c1858
Fix warning
markwallace-microsoft b8b3bf6
Add A2A Client and Server samples
markwallace-microsoft 0196641
Mark assembly as experimental
markwallace-microsoft aba8ada
Fix warnings
markwallace-microsoft d1297dd
Fix warnings
markwallace-microsoft 384de1d
Skip .net8.0 build for A2AClientServer
markwallace-microsoft 8469ddc
Skip .net8.0 build for A2AClientServer
markwallace-microsoft 192ebee
Skip .net8.0 build for A2AClientServer
markwallace-microsoft 908af44
Undo changes
markwallace-microsoft f2516dd
Bump package versions and add readme
markwallace-microsoft d2ba0d8
Revert to just net8.0
markwallace-microsoft 4edfb35
Merge Shawn's changes and support ChatCompletion or AzureAI agents
markwallace-microsoft 7d6ce75
Merge branch 'main' into users/markwallace/a2a_agent
markwallace-microsoft 84acb02
Fix formatting
markwallace-microsoft bec3c2d
Fix formatting
markwallace-microsoft 41a1d31
Merge branch 'main' into users/markwallace/a2a_agent
markwallace-microsoft 7940e93
Rename configu property
markwallace-microsoft 2244207
Merge branch 'users/markwallace/a2a_agent' of https://github.com/mark…
markwallace-microsoft b2439f5
Start work on streaming support
markwallace-microsoft 2ba30e3
Merge latest from main and resolve merge conflicts
markwallace-microsoft 3898ebe
Merge branch 'main' into users/markwallace/a2a_agent
markwallace-microsoft 9458511
Update the .slnx file
markwallace-microsoft 47d7e69
Merge branch 'main' into users/markwallace/a2a_agent
markwallace-microsoft 6844e8b
Update to new client API
markwallace-microsoft bf32517
Upgrade to latest SharpA2A
markwallace-microsoft bbf19ca
Merge branch 'main' into users/markwallace/a2a_agent
markwallace-microsoft a05b44d
Cleanup samples and test
markwallace-microsoft ea68957
Update the A2A demo README
markwallace-microsoft ea42d2e
Add unit tests
markwallace-microsoft 8a4d4ff
Add unit tests
markwallace-microsoft 513d831
Merge branch 'users/markwallace/a2a_agent' of https://github.com/mark…
markwallace-microsoft 059e6eb
Merge branch 'main' into users/markwallace/a2a_agent
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25 changes: 25 additions & 0 deletions
25
dotnet/samples/Demos/A2AClientServer/A2AClient/A2AClient.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <UserSecretsId>5ee045b0-aea3-4f08-8d31-32d1a6f8fed0</UserSecretsId> | ||
| <NoWarn>$(NoWarn);CS1591;VSTHRD111;CA2007;SKEXP0110</NoWarn> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| <PackageReference Include="SharpA2A.Core" /> | ||
| <PackageReference Include="SharpA2A.AspNetCore" /> | ||
| <PackageReference Include="System.CommandLine" /> | ||
| <PackageReference Include="Microsoft.Extensions.Hosting" /> | ||
| </ItemGroup> | ||
|
|
||
| <ItemGroup> | ||
| <ProjectReference Include="..\..\..\..\src\Agents\A2A\Agents.A2A.csproj" /> | ||
| <ProjectReference Include="..\..\..\..\src\Agents\Core\Agents.Core.csproj" /> | ||
| <ProjectReference Include="..\..\..\..\src\Connectors\Connectors.OpenAI\Connectors.OpenAI.csproj" /> | ||
| </ItemGroup> | ||
|
|
||
| </Project> | ||
76 changes: 76 additions & 0 deletions
76
dotnet/samples/Demos/A2AClientServer/A2AClient/HostClientAgent.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| // Copyright (c) Microsoft. All rights reserved. | ||
|
|
||
| using Microsoft.Extensions.Logging; | ||
| using Microsoft.SemanticKernel; | ||
| using Microsoft.SemanticKernel.Agents; | ||
| using Microsoft.SemanticKernel.Agents.A2A; | ||
| using SharpA2A.Core; | ||
|
|
||
| namespace A2A; | ||
|
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| internal sealed class HostClientAgent | ||
| { | ||
| internal HostClientAgent(ILogger logger) | ||
| { | ||
| this._logger = logger; | ||
| } | ||
| internal async Task InitializeAgentAsync(string modelId, string apiKey, string baseAddress) | ||
| { | ||
| try | ||
| { | ||
| this._logger.LogInformation("Initializing Semantic Kernel agent with model: {ModelId}", modelId); | ||
|
|
||
| // Connect to the remote agents via A2A | ||
| var agentPlugin = KernelPluginFactory.CreateFromFunctions("AgentPlugin", | ||
| [ | ||
| AgentKernelFunctionFactory.CreateFromAgent(await this.CreateAgentAsync($"{baseAddress}/currency/")), | ||
| AgentKernelFunctionFactory.CreateFromAgent(await this.CreateAgentAsync($"{baseAddress}/invoice/")) | ||
| ]); | ||
|
|
||
| // Define the TravelPlannerAgent | ||
| var builder = Kernel.CreateBuilder(); | ||
| builder.AddOpenAIChatCompletion(modelId, apiKey); | ||
| builder.Plugins.Add(agentPlugin); | ||
| var kernel = builder.Build(); | ||
|
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| this.Agent = new ChatCompletionAgent() | ||
| { | ||
| Kernel = kernel, | ||
| Name = "HostClient", | ||
| Instructions = | ||
| """ | ||
| You specialize in handling queries for users and using your tools to provide answers. | ||
| """, | ||
| Arguments = new KernelArguments(new PromptExecutionSettings() { FunctionChoiceBehavior = FunctionChoiceBehavior.Auto() }), | ||
| }; | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| this._logger.LogError(ex, "Failed to initialize HostClientAgent"); | ||
| throw; | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// The associated <see cref="Agent"/> | ||
| /// </summary> | ||
| public Agent? Agent { get; private set; } | ||
|
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| #region private | ||
| private readonly ILogger _logger; | ||
|
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| private async Task<A2AAgent> CreateAgentAsync(string agentUri) | ||
| { | ||
| var httpClient = new HttpClient | ||
| { | ||
| BaseAddress = new Uri(agentUri) | ||
| }; | ||
|
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| var client = new A2AClient(httpClient); | ||
| var cardResolver = new A2ACardResolver(httpClient); | ||
| var agentCard = await cardResolver.GetAgentCardAsync(); | ||
|
|
||
| return new A2AAgent(client, agentCard); | ||
| } | ||
| #endregion | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| // Copyright (c) Microsoft. All rights reserved. | ||
|
|
||
| using System.CommandLine; | ||
| using System.CommandLine.Invocation; | ||
| using System.Reflection; | ||
| using Microsoft.Extensions.Configuration; | ||
| using Microsoft.Extensions.Logging; | ||
| using Microsoft.SemanticKernel; | ||
| using Microsoft.SemanticKernel.Agents; | ||
|
|
||
| namespace A2A; | ||
|
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||
| public static class Program | ||
| { | ||
| public static async Task<int> Main(string[] args) | ||
| { | ||
| // Create root command with options | ||
| var rootCommand = new RootCommand("A2AClient") | ||
| { | ||
| s_agentOption, | ||
| }; | ||
|
|
||
| // Replace the problematic line with the following: | ||
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|
||
| rootCommand.SetHandler(RunCliAsync); | ||
|
|
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| // Run the command | ||
| return await rootCommand.InvokeAsync(args); | ||
| } | ||
|
|
||
| public static async System.Threading.Tasks.Task RunCliAsync(InvocationContext context) | ||
| { | ||
| string agent = context.ParseResult.GetValueForOption<string>(s_agentOption)!; | ||
|
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| await RunCliAsync(agent); | ||
| } | ||
|
|
||
| #region private | ||
| private static readonly Option<string> s_agentOption = new( | ||
| "--agent", | ||
| getDefaultValue: () => "http://localhost:10000", | ||
| description: "Agent URL"); | ||
|
|
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| private static async System.Threading.Tasks.Task RunCliAsync(string agentUrl) | ||
| { | ||
| // Set up the logging | ||
| using var loggerFactory = LoggerFactory.Create(builder => | ||
| { | ||
| builder.AddConsole(); | ||
| builder.SetMinimumLevel(LogLevel.Information); | ||
| }); | ||
| var logger = loggerFactory.CreateLogger("A2AClient"); | ||
|
|
||
| // Retrieve configuration settings | ||
| IConfigurationRoot configRoot = new ConfigurationBuilder() | ||
| .AddEnvironmentVariables() | ||
| .AddUserSecrets(Assembly.GetExecutingAssembly()) | ||
| .Build(); | ||
| string apiKey = configRoot["OPENAI_API_KEY"] ?? throw new ArgumentException("OPENAI_API_KEY must be provided"); | ||
| string modelId = configRoot["OPENAI_CHAT_MODEL_ID"] ?? "gpt-4.1"; | ||
| string baseAddress = configRoot["AGENT_URL"] ?? "http://localhost:5000"; | ||
|
|
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| // Create the Host agent | ||
| var hostAgent = new HostClientAgent(logger); | ||
| await hostAgent.InitializeAgentAsync(modelId, apiKey, baseAddress); | ||
|
|
||
| try | ||
| { | ||
| while (true) | ||
| { | ||
| // Get user message | ||
| Console.Write("\nUser (:q or quit to exit): "); | ||
| string? message = Console.ReadLine(); | ||
| if (string.IsNullOrWhiteSpace(message)) | ||
| { | ||
| Console.WriteLine("Request cannot be empty."); | ||
| continue; | ||
| } | ||
|
|
||
| if (message == ":q" || message == "quit") | ||
| { | ||
| break; | ||
| } | ||
|
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||
| Console.ForegroundColor = ConsoleColor.Cyan; | ||
| await foreach (AgentResponseItem<ChatMessageContent> response in hostAgent.Agent!.InvokeAsync(message)) | ||
| { | ||
| Console.WriteLine($"Agent: {response.Message.Content}"); | ||
| } | ||
| Console.ResetColor(); | ||
| } | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| logger.LogError(ex, "An error occurred while running the A2AClient"); | ||
| return; | ||
| } | ||
| } | ||
| #endregion | ||
| } | ||
23 changes: 23 additions & 0 deletions
23
dotnet/samples/Demos/A2AClientServer/A2AServer/A2AServer.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
|
|
||
| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <UserSecretsId>5ee045b0-aea3-4f08-8d31-32d1a6f8fed0</UserSecretsId> | ||
| <NoWarn>$(NoWarn);CS1591;VSTHRD111;CA2007;SKEXP0110</NoWarn> | ||
| </PropertyGroup> | ||
|
|
||
| <ItemGroup> | ||
| <PackageReference Include="SharpA2A.Core" /> | ||
| <PackageReference Include="SharpA2A.AspNetCore" /> | ||
| </ItemGroup> | ||
|
|
||
| <ItemGroup> | ||
| <ProjectReference Include="..\..\..\..\src\Agents\A2A\Agents.A2A.csproj" /> | ||
| <ProjectReference Include="..\..\..\..\src\Agents\Core\Agents.Core.csproj" /> | ||
| <ProjectReference Include="..\..\..\..\src\Connectors\Connectors.OpenAI\Connectors.OpenAI.csproj" /> | ||
| </ItemGroup> | ||
|
|
||
| </Project> |
51 changes: 51 additions & 0 deletions
51
dotnet/samples/Demos/A2AClientServer/A2AServer/A2AServer.http
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| @host = http://localhost:5000 | ||
|
|
||
| ### Query agent card for the invoice agent | ||
| GET {{host}}/invoice/.well-known/agent.json | ||
|
|
||
| ### Send a task to the invoice agent | ||
| POST {{host}}/invoice | ||
| Content-Type: application/json | ||
|
|
||
| { | ||
| "id": "1", | ||
| "jsonrpc": "2.0", | ||
| "method": "task/send", | ||
| "params": { | ||
| "id": "12345", | ||
| "message": { | ||
| "role": "user", | ||
| "parts": [ | ||
| { | ||
| "type": "text", | ||
| "text": "Show me all invoices for Contoso?" | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } | ||
|
|
||
| ### Query agent card for the currency agent | ||
| GET {{host}}/currency/.well-known/agent.json | ||
|
|
||
| ### Send a task to the currency agent | ||
| POST {{host}}/currency | ||
| Content-Type: application/json | ||
|
|
||
| { | ||
| "id": "1", | ||
| "jsonrpc": "2.0", | ||
| "method": "task/send", | ||
| "params": { | ||
| "id": "12345", | ||
| "message": { | ||
| "role": "user", | ||
| "parts": [ | ||
| { | ||
| "type": "text", | ||
| "text": "What is the current exchange rather for Dollars to Euro?" | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| } |
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Do we need the asp.net package in the client? I would have expected it's only required for the server?