diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/AzureAgentProvider.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/AzureAgentProvider.cs
index 562a77a8d9..0ff167d50d 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/AzureAgentProvider.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/AzureAgentProvider.cs
@@ -37,7 +37,13 @@ public sealed class AzureAgentProvider(string projectEndpoint, TokenCredential p
     /// <inheritdoc/>
     public override async Task<string> CreateConversationAsync(CancellationToken cancellationToken = default)
     {
-        PersistentAgentThread conversation = await this.GetAgentsClient().Threads.CreateThreadAsync(cancellationToken: cancellationToken).ConfigureAwait(false);
+        PersistentAgentThread conversation =
+            await this.GetAgentsClient().Threads.CreateThreadAsync(
+                messages: null,
+                toolResources: null,
+                metadata: null,
+                cancellationToken).ConfigureAwait(false);
+
         return conversation.Id;
     }
 
@@ -92,7 +98,7 @@ public sealed class AzureAgentProvider(string projectEndpoint, TokenCredential p
 
     /// <inheritdoc/>
     public override async Task<AIAgent> GetAgentAsync(string agentId, CancellationToken cancellationToken = default) =>
-        await this.GetAgentsClient().GetAIAgentAsync(agentId, chatOptions: null, cancellationToken: cancellationToken).ConfigureAwait(false);
+        await this.GetAgentsClient().GetAIAgentAsync(agentId, chatOptions: null, clientFactory: null, cancellationToken).ConfigureAwait(false);
 
     /// <inheritdoc/>
     public override async Task<ChatMessage> GetMessageAsync(string conversationId, string messageId, CancellationToken cancellationToken = default)
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/AgentProviderExtensions.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/AgentProviderExtensions.cs
index 2de25ec7dc..5b6bbbc297 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/AgentProviderExtensions.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/AgentProviderExtensions.cs
@@ -103,7 +103,7 @@ internal static class AgentProviderExtensions
             {
                 conversationId = assignValue;
 
-                await context.QueueConversationUpdateAsync(conversationId, cancellationToken: cancellationToken).ConfigureAwait(false);
+                await context.QueueConversationUpdateAsync(conversationId, cancellationToken).ConfigureAwait(false);
             }
         }
     }
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs
index aa38ee0b7a..720636178e 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Extensions/IWorkflowContextExtensions.cs
@@ -20,8 +20,17 @@ internal static class IWorkflowContextExtensions
     public static ValueTask RaiseCompletionEventAsync(this IWorkflowContext context, DialogAction action, CancellationToken cancellationToken = default) =>
         context.AddEventAsync(new DeclarativeActionCompletedEvent(action), cancellationToken);
 
-    public static ValueTask SendResultMessageAsync(this IWorkflowContext context, string id, object? result = null, CancellationToken cancellationToken = default) =>
-        context.SendMessageAsync(new ActionExecutorResult(id, result), cancellationToken: cancellationToken);
+    public static FormulaValue ReadState(this IWorkflowContext context, PropertyPath variablePath) =>
+        context.ReadState(Throw.IfNull(variablePath.VariableName), Throw.IfNull(variablePath.NamespaceAlias));
+
+    public static FormulaValue ReadState(this IWorkflowContext context, string key, string? scopeName = null) =>
+        DeclarativeContext(context).State.Get(key, scopeName);
+
+    public static ValueTask SendResultMessageAsync(this IWorkflowContext context, string id, CancellationToken cancellationToken = default) =>
+        context.SendResultMessageAsync(id, result: null, cancellationToken);
+
+    public static ValueTask SendResultMessageAsync(this IWorkflowContext context, string id, object? result, CancellationToken cancellationToken = default) =>
+        context.SendMessageAsync(new ActionExecutorResult(id, result), targetId: null, cancellationToken);
 
     public static ValueTask QueueStateResetAsync(this IWorkflowContext context, PropertyPath variablePath, CancellationToken cancellationToken = default) =>
         context.QueueStateUpdateAsync(Throw.IfNull(variablePath.VariableName), UnassignedValue.Instance, Throw.IfNull(variablePath.NamespaceAlias), cancellationToken);
@@ -29,14 +38,22 @@ internal static class IWorkflowContextExtensions
     public static ValueTask QueueStateUpdateAsync<TValue>(this IWorkflowContext context, PropertyPath variablePath, TValue? value, CancellationToken cancellationToken = default) =>
         context.QueueStateUpdateAsync(Throw.IfNull(variablePath.VariableName), value, Throw.IfNull(variablePath.NamespaceAlias), cancellationToken);
 
-    public static ValueTask QueueSystemUpdateAsync<TValue>(this IWorkflowContext context, string key, TValue? value, CancellationToken cancellationToken = default) =>
-        DeclarativeContext(context).QueueSystemUpdateAsync(key, value, cancellationToken);
+    public static async ValueTask QueueEnvironmentUpdateAsync<TValue>(this IWorkflowContext context, string key, TValue? value, CancellationToken cancellationToken = default)
+    {
+        DeclarativeWorkflowContext declarativeContext = DeclarativeContext(context);
+        await declarativeContext.UpdateStateAsync(key, value, VariableScopeNames.Environment, allowSystem: true, cancellationToken).ConfigureAwait(false);
+        declarativeContext.State.Bind();
+    }
 
-    public static FormulaValue ReadState(this IWorkflowContext context, PropertyPath variablePath) =>
-        context.ReadState(Throw.IfNull(variablePath.VariableName), Throw.IfNull(variablePath.NamespaceAlias));
+    public static async ValueTask QueueSystemUpdateAsync<TValue>(this IWorkflowContext context, string key, TValue? value, CancellationToken cancellationToken = default)
+    {
+        DeclarativeWorkflowContext declarativeContext = DeclarativeContext(context);
+        await declarativeContext.UpdateStateAsync(key, value, VariableScopeNames.System, allowSystem: true, cancellationToken).ConfigureAwait(false);
+        declarativeContext.State.Bind();
+    }
 
-    public static FormulaValue ReadState(this IWorkflowContext context, string key, string? scopeName = null) =>
-        DeclarativeContext(context).State.Get(key, scopeName);
+    public static ValueTask QueueConversationUpdateAsync(this IWorkflowContext context, string conversationId, CancellationToken cancellationToken = default) =>
+        context.QueueConversationUpdateAsync(conversationId, isExternal: false, cancellationToken);
 
     public static async ValueTask QueueConversationUpdateAsync(this IWorkflowContext context, string conversationId, bool isExternal = false, CancellationToken cancellationToken = default)
     {
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowContext.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowContext.cs
index 7d373d5962..f4b7cb14ba 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowContext.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowContext.cs
@@ -53,7 +53,7 @@ internal sealed class DeclarativeWorkflowContext : IWorkflowContext
                 // Copy keys to array to avoid modifying collection during enumeration.
                 foreach (string key in this.State.Keys(scopeName).ToArray())
                 {
-                    await this.UpdateStateAsync(key, UnassignedValue.Instance, scopeName, cancellationToken: cancellationToken).ConfigureAwait(false);
+                    await this.UpdateStateAsync(key, UnassignedValue.Instance, scopeName, allowSystem: false, cancellationToken).ConfigureAwait(false);
                 }
             }
             else
@@ -68,13 +68,7 @@ internal sealed class DeclarativeWorkflowContext : IWorkflowContext
     /// <inheritdoc/>
     public async ValueTask QueueStateUpdateAsync<T>(string key, T? value, string? scopeName = null, CancellationToken cancellationToken = default)
     {
-        await this.UpdateStateAsync(key, value, scopeName, cancellationToken: cancellationToken).ConfigureAwait(false);
-        this.State.Bind();
-    }
-
-    public async ValueTask QueueSystemUpdateAsync<TValue>(string key, TValue? value, CancellationToken cancellationToken = default)
-    {
-        await this.UpdateStateAsync(key, value, VariableScopeNames.System, allowSystem: true, cancellationToken).ConfigureAwait(false);
+        await this.UpdateStateAsync(key, value, scopeName, allowSystem: false, cancellationToken).ConfigureAwait(false);
         this.State.Bind();
     }
 
@@ -105,7 +99,7 @@ internal sealed class DeclarativeWorkflowContext : IWorkflowContext
     public ValueTask SendMessageAsync(object message, string? targetId = null, CancellationToken cancellationToken = default)
         => this.Source.SendMessageAsync(message, targetId, cancellationToken);
 
-    private ValueTask UpdateStateAsync<T>(string key, T? value, string? scopeName, bool allowSystem = true, CancellationToken cancellationToken = default)
+    public ValueTask UpdateStateAsync<T>(string key, T? value, string? scopeName, bool allowSystem, CancellationToken cancellationToken = default)
     {
         bool isManagedScope =
             scopeName is not null && // null scope cannot be managed
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowExecutor.cs
index c228533f17..52cd02f916 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowExecutor.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DeclarativeWorkflowExecutor.cs
@@ -43,6 +43,6 @@ internal sealed class DeclarativeWorkflowExecutor<TInput>(
         await options.AgentProvider.CreateMessageAsync(conversationId, input, cancellationToken).ConfigureAwait(false);
         await declarativeContext.SetLastMessageAsync(input).ConfigureAwait(false);
 
-        await context.SendResultMessageAsync(this.Id, cancellationToken: cancellationToken).ConfigureAwait(false);
+        await context.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
     }
 }
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DelegateActionExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DelegateActionExecutor.cs
index e05f0908af..1d9a2c7552 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DelegateActionExecutor.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Interpreter/DelegateActionExecutor.cs
@@ -49,7 +49,7 @@ internal class DelegateActionExecutor<TMessage> : Executor<TMessage>, IResettabl
 
         if (this._emitResult)
         {
-            await context.SendResultMessageAsync(this.Id, cancellationToken: cancellationToken).ConfigureAwait(false);
+            await context.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
         }
     }
 }
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs
index 87957b8b9d..1254440342 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/Kit/RootExecutor.cs
@@ -6,7 +6,6 @@ using System.Threading.Tasks;
 using Microsoft.Agents.AI.Workflows.Declarative.Extensions;
 using Microsoft.Agents.AI.Workflows.Declarative.Interpreter;
 using Microsoft.Agents.AI.Workflows.Declarative.PowerFx;
-using Microsoft.Bot.ObjectModel;
 using Microsoft.Extensions.AI;
 using Microsoft.Extensions.Configuration;
 
@@ -71,7 +70,7 @@ public abstract class RootExecutor<TInput> : Executor<TInput>, IResettableExecut
         await this._agentProvider.CreateMessageAsync(this._conversationId, input, cancellationToken).ConfigureAwait(false);
         await declarativeContext.SetLastMessageAsync(input).ConfigureAwait(false);
 
-        await declarativeContext.SendMessageAsync(new ActionExecutorResult(this.Id), cancellationToken: cancellationToken).ConfigureAwait(false);
+        await declarativeContext.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
     }
 
     /// <summary>
@@ -94,7 +93,7 @@ public abstract class RootExecutor<TInput> : Executor<TInput>, IResettableExecut
     {
         foreach (string variableName in variableNames)
         {
-            await context.QueueStateUpdateAsync(variableName, GetEnvironmentVariable(variableName), VariableScopeNames.Environment).ConfigureAwait(false);
+            await context.QueueEnvironmentUpdateAsync(variableName, GetEnvironmentVariable(variableName)).ConfigureAwait(false);
         }
 
         string GetEnvironmentVariable(string name)
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/CreateConversationExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/CreateConversationExecutor.cs
index 6ed1d4db32..e229046864 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/CreateConversationExecutor.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/CreateConversationExecutor.cs
@@ -17,7 +17,7 @@ internal sealed class CreateConversationExecutor(CreateConversation model, Workf
     {
         string conversationId = await agentProvider.CreateConversationAsync(cancellationToken).ConfigureAwait(false);
         await this.AssignAsync(this.Model.ConversationId?.Path, FormulaValue.New(conversationId), context).ConfigureAwait(false);
-        await context.QueueConversationUpdateAsync(conversationId, cancellationToken: cancellationToken).ConfigureAwait(false);
+        await context.QueueConversationUpdateAsync(conversationId, cancellationToken).ConfigureAwait(false);
 
         return default;
     }
diff --git a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs
index be82ca4935..9dbaa2efa1 100644
--- a/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs
+++ b/dotnet/src/Microsoft.Agents.AI.Workflows.Declarative/ObjectModel/QuestionExecutor.cs
@@ -65,7 +65,7 @@ internal sealed class QuestionExecutor(Question model, WorkflowFormulaState stat
         }
         else
         {
-            await context.SendResultMessageAsync(this.Id, result: null, cancellationToken).ConfigureAwait(false);
+            await context.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
         }
 
         return default;
@@ -75,7 +75,7 @@ internal sealed class QuestionExecutor(Question model, WorkflowFormulaState stat
     {
         int count = await this._promptCount.ReadAsync(context).ConfigureAwait(false);
         InputRequest inputRequest = new(this.FormatPrompt(this.Model.Prompt));
-        await context.SendMessageAsync(inputRequest, cancellationToken: cancellationToken).ConfigureAwait(false);
+        await context.SendMessageAsync(inputRequest, targetId: null, cancellationToken).ConfigureAwait(false);
         await this._promptCount.WriteAsync(context, count + 1).ConfigureAwait(false);
     }
 
@@ -109,7 +109,7 @@ internal sealed class QuestionExecutor(Question model, WorkflowFormulaState stat
         {
             await this.AssignAsync(this.Model.Variable?.Path, extractedValue, context).ConfigureAwait(false);
             await this._hasExecuted.WriteAsync(context, true).ConfigureAwait(false);
-            await context.SendResultMessageAsync(this.Id, result: null, cancellationToken).ConfigureAwait(false);
+            await context.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
         }
     }
 
@@ -129,7 +129,7 @@ internal sealed class QuestionExecutor(Question model, WorkflowFormulaState stat
             await this.AssignAsync(this.Model.Variable?.Path, defaultValue.ToFormula(), context).ConfigureAwait(false);
             string defaultValueResponse = this.FormatPrompt(this.Model.DefaultValueResponse);
             await context.AddEventAsync(new MessageActivityEvent(defaultValueResponse.Trim()), cancellationToken).ConfigureAwait(false);
-            await context.SendResultMessageAsync(this.Id, result: null, cancellationToken).ConfigureAwait(false);
+            await context.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
         }
         else
         {
diff --git a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/WorkflowActionExecutorTest.cs b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/WorkflowActionExecutorTest.cs
index 738b26b6f9..9b667b55f7 100644
--- a/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/WorkflowActionExecutorTest.cs
+++ b/dotnet/tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/ObjectModel/WorkflowActionExecutorTest.cs
@@ -6,7 +6,6 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Agents.AI.Workflows.Declarative.Extensions;
 using Microsoft.Agents.AI.Workflows.Declarative.Interpreter;
-using Microsoft.Agents.AI.Workflows.Declarative.Kit;
 using Microsoft.Agents.AI.Workflows.Declarative.PowerFx;
 using Microsoft.Bot.ObjectModel;
 using Microsoft.PowerFx.Types;
@@ -72,6 +71,6 @@ public abstract class WorkflowActionExecutorTest(ITestOutputHelper output) : Wor
     internal sealed class TestWorkflowExecutor() : Executor<WorkflowFormulaState>("test_workflow")
     {
         public override async ValueTask HandleAsync(WorkflowFormulaState message, IWorkflowContext context, CancellationToken cancellationToken) =>
-            await context.SendMessageAsync(new ActionExecutorResult(this.Id), cancellationToken: cancellationToken).ConfigureAwait(false);
+            await context.SendResultMessageAsync(this.Id, cancellationToken).ConfigureAwait(false);
     }
 }