From 33f3b02d4170a58a37a11bb21c71211135d598c4 Mon Sep 17 00:00:00 2001
From: Jacob Alber <jaalber@microsoft.com>
Date: Mon, 20 Apr 2026 12:25:15 -0400
Subject: [PATCH] refactor: remove ignore YieldsMessageAttribute

- the correct one to use is YieldsOutputAttribute
- fixes a comment that mistakenly refers to `.YieldsMessage()` which does not exist.
---
 .../Analysis/SemanticAnalyzer.cs              |  2 +-
 .../Attributes/YieldsMessageAttribute.cs      | 49 -------------------
 2 files changed, 1 insertion(+), 50 deletions(-)
 delete mode 100644 dotnet/src/Microsoft.Agents.AI.Workflows/Attributes/YieldsMessageAttribute.cs

diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Generators/Analysis/SemanticAnalyzer.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Generators/Analysis/SemanticAnalyzer.cs
index 66b67bffdf..7fcbdb18ca 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Generators/Analysis/SemanticAnalyzer.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Generators/Analysis/SemanticAnalyzer.cs
@@ -254,7 +254,7 @@ internal static class SemanticAnalyzer
 
     /// <summary>
     /// Combines ClassProtocolInfo results into an AnalysisResult for classes that only have IO attributes
-    /// (no [MessageHandler] methods). This generates only .SendsMessage/.YieldsMessage calls in the protocol
+    /// (no [MessageHandler] methods). This generates only .SendsMessage/.YieldsOutput calls in the protocol
     /// configuration.
     /// </summary>
     /// <remarks>
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows/Attributes/YieldsMessageAttribute.cs b/dotnet/src/Microsoft.Agents.AI.Workflows/Attributes/YieldsMessageAttribute.cs
deleted file mode 100644
index 82ca9106b7..0000000000
--- a/dotnet/src/Microsoft.Agents.AI.Workflows/Attributes/YieldsMessageAttribute.cs
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright (c) Microsoft. All rights reserved.
-
-using System;
-using Microsoft.Shared.Diagnostics;
-
-namespace Microsoft.Agents.AI.Workflows;
-
-/// <summary>
-/// Declares that an executor may yield messages of the specified type as workflow outputs.
-/// </summary>
-/// <remarks>
-/// <para>
-/// Apply this attribute to an <see cref="Executor"/> class to declare the types of messages
-/// it may yield via <see cref="IWorkflowContext.YieldOutputAsync"/>. This information is used
-/// for protocol validation and documentation.
-/// </para>
-/// <para>
-/// This attribute can be applied multiple times to declare multiple output types.
-/// It is inherited by derived classes, allowing base executors to declare common output types.
-/// </para>
-/// </remarks>
-/// <example>
-/// <code>
-/// [YieldsMessage(typeof(FinalResult))]
-/// [YieldsMessage(typeof(StreamChunk))]
-/// public partial class MyExecutor : Executor
-/// {
-///     // ...
-/// }
-/// </code>
-/// </example>
-[AttributeUsage(AttributeTargets.Class, AllowMultiple = true, Inherited = true)]
-public sealed class YieldsMessageAttribute : Attribute
-{
-    /// <summary>
-    /// Gets the type of message that the executor may yield.
-    /// </summary>
-    public Type Type { get; }
-
-    /// <summary>
-    /// Initializes a new instance of the <see cref="YieldsMessageAttribute"/> class.
-    /// </summary>
-    /// <param name="type">The type of message that the executor may yield.</param>
-    /// <exception cref="ArgumentNullException"><paramref name="type"/> is <see langword="null"/>.</exception>
-    public YieldsMessageAttribute(Type type)
-    {
-        this.Type = Throw.IfNull(type);
-    }
-}