Python: Add BaseAgent implementation for Claude Agent SDK (#3509)

* Added ClaudeAgent implementation

* Updated streaming logic

* Small updates

* Small update

* Fixes

* Small fix

* Naming improvements

* Updated imports

* Addressed comments

* Updated package versions

.devcontainer/dotnet/devcontainer.json

@@ -1,16 +1,34 @@
 {
   "name": "C# (.NET)",
-  "image": "mcr.microsoft.com/devcontainers/dotnet:10.0",
+  //"image": "mcr.microsoft.com/devcontainers/dotnet",
+  // Workaround for https://github.com/devcontainers/images/issues/1752
+  "build": {
+    "dockerfile": "dotnet.Dockerfile"
+  },
   "features": {
-    "ghcr.io/devcontainers/features/dotnet:2.4.0": {},
-    "ghcr.io/devcontainers/features/powershell:1.5.1": {},
-    "ghcr.io/devcontainers/features/azure-cli:1.2.8": {},
-    "ghcr.io/devcontainers/features/docker-in-docker:2.12.4": {}
+    "ghcr.io/devcontainers/features/azure-cli:1.2.9": {},
+    "ghcr.io/devcontainers/features/github-cli:1": {
+      "version": "2"
+    },
+    "ghcr.io/devcontainers/features/powershell:1": {
+      "version": "latest"
+    },
+    "ghcr.io/azure/azure-dev/azd:0": {
+      "version": "latest"
+    },
+    "ghcr.io/devcontainers/features/dotnet:2": {
+      "version": "none",
+      "dotnetRuntimeVersions": "10.0",
+      "aspNetCoreRuntimeVersions": "10.0"
+    },
+    "ghcr.io/devcontainers/features/copilot-cli:1": {}
   },
   "workspaceFolder": "/workspaces/agent-framework/dotnet/",
   "customizations": {
     "vscode": {
       "extensions": [
+        "GitHub.copilot",
+        "GitHub.vscode-github-actions",
         "ms-dotnettools.csdevkit",
         "vscode-icons-team.vscode-icons",
         "ms-windows-ai-studio.windows-ai-studio"

.devcontainer/dotnet/dotnet.Dockerfile

@@ -0,0 +1,5 @@
+FROM mcr.microsoft.com/devcontainers/universal:latest
+
+# Remove Yarn repository with expired GPG key to prevent apt-get update failures
+# Tracking issue: https://github.com/devcontainers/images/issues/1752
+RUN rm -f /etc/apt/sources.list.d/yarn.list

.github/CODEOWNERS

@@ -2,3 +2,6 @@
 # https://docs.github.com/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
 
 python/packages/azurefunctions/ @microsoft/agentframework-durabletask-developers
+python/packages/durabletask/ @microsoft/agentframework-durabletask-developers
+python/samples/getting_started/azure_functions/ @microsoft/agentframework-durabletask-developers
+python/samples/getting_started/durabletask/ @microsoft/agentframework-durabletask-developers

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Documentation
+    url: https://aka.ms/agent-framework
+    about: Check out the official documentation for guides and API reference.
+  - name: Discussions
+    url: https://github.com/microsoft/agent-framework/discussions
+    about: Ask questions about Agent Framework.

.github/ISSUE_TEMPLATE/dotnet-issue.yml

@@ -0,0 +1,70 @@
+name: .NET Bug Report
+description: Report a bug in the Agent Framework .NET SDK
+title: ".NET: [Bug]: "
+labels: ["bug", ".NET"]
+type: bug
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Please provide a clear and detailed description of the bug.
+      placeholder: |
+        - What happened?
+        - What did you expect to happen?
+        - Steps to reproduce the issue
+    validations:
+      required: true
+
+  - type: textarea
+    id: code-sample
+    attributes:
+      label: Code Sample
+      description: If applicable, provide a minimal code sample that demonstrates the issue.
+      placeholder: |
+        ```csharp
+        // Your code here
+        ```
+      render: markdown
+    validations:
+      required: false
+
+  - type: textarea
+    id: error-messages
+    attributes:
+      label: Error Messages / Stack Traces
+      description: Include any error messages or stack traces you received.
+      placeholder: |
+        ```
+        Paste error messages or stack traces here
+        ```
+      render: markdown
+    validations:
+      required: false
+
+  - type: input
+    id: dotnet-packages
+    attributes:
+      label: Package Versions
+      description: List the Microsoft.Agents.* packages and versions you are using
+      placeholder: "e.g., Microsoft.Agents.AI.Abstractions: 1.0.0, Microsoft.Agents.AI.OpenAI: 1.0.0"
+    validations:
+      required: true
+
+  - type: input
+    id: dotnet-version
+    attributes:
+      label: .NET Version
+      description: What version of .NET are you using?
+      placeholder: "e.g., .NET 8.0"
+    validations:
+      required: false
+
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional Context
+      description: Add any other context or screenshots that might be helpful.
+      placeholder: "Any additional information..."
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature-request.yml

@@ -0,0 +1,51 @@
+name: Feature Request
+description: Request a new feature for Microsoft Agent Framework
+title: "[Feature]: "
+type: feature
+body:
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Please describe the feature you'd like and why it would be useful.
+      placeholder: |
+        Describe the feature you're requesting:
+        - What problem does it solve?
+        - What would the expected behavior be?
+        - Are there any alternatives you've considered?
+    validations:
+      required: true
+
+  - type: textarea
+    id: code-sample
+    attributes:
+      label: Code Sample
+      description: If applicable, provide a code sample showing how you'd like to use this feature.
+      placeholder: |
+        ```python
+        # Your code here
+        ```
+
+        or
+
+        ```csharp
+        // Your code here
+        ```
+      render: markdown
+    validations:
+      required: false
+
+  - type: dropdown
+    id: language
+    attributes:
+      label: Language/SDK
+      description: Which language/SDK does this feature apply to?
+      options:
+        - Both
+        - .NET
+        - Python
+        - Other / Not Applicable
+      default: 0
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/python-issue.yml

@@ -0,0 +1,70 @@
+name: Python Bug Report
+description: Report a bug in the Agent Framework Python SDK
+title: "Python: [Bug]: "
+labels: ["bug", "Python"]
+type: bug
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Please provide a clear and detailed description of the bug.
+      placeholder: |
+        - What happened?
+        - What did you expect to happen?
+        - Steps to reproduce the issue
+    validations:
+      required: true
+
+  - type: textarea
+    id: code-sample
+    attributes:
+      label: Code Sample
+      description: If applicable, provide a minimal code sample that demonstrates the issue.
+      placeholder: |
+        ```python
+        # Your code here
+        ```
+      render: markdown
+    validations:
+      required: false
+
+  - type: textarea
+    id: error-messages
+    attributes:
+      label: Error Messages / Stack Traces
+      description: Include any error messages or stack traces you received.
+      placeholder: |
+        ```
+        Paste error messages or stack traces here
+        ```
+      render: markdown
+    validations:
+      required: false
+
+  - type: input
+    id: python-packages
+    attributes:
+      label: Package Versions
+      description: List the agent-framework-* packages and versions you are using
+      placeholder: "e.g., agent-framework-core: 1.0.0, agent-framework-azure-ai: 1.0.0"
+    validations:
+      required: true
+
+  - type: input
+    id: python-version
+    attributes:
+      label: Python Version
+      description: What version of Python are you using?
+      placeholder: "e.g., Python 3.11"
+    validations:
+      required: false
+
+  - type: textarea
+    id: additional-context
+    attributes:
+      label: Additional Context
+      description: Add any other context or screenshots that might be helpful.
+      placeholder: "Any additional information..."
+    validations:
+      required: false

.github/actions/azure-functions-integration-setup/action.yml

@@ -12,7 +12,7 @@ runs:
             docker rm -f dts-emulator
           fi
           echo "Starting Durable Task Scheduler Emulator"
-          docker run -d --name dts-emulator -p 8080:8080 -p 8082:8082 mcr.microsoft.com/dts/dts-emulator:latest
+          docker run -d --name dts-emulator -p 8080:8080 -p 8082:8082 -e DTS_USE_DYNAMIC_TASK_HUBS=true mcr.microsoft.com/dts/dts-emulator:latest
           echo "Waiting for Durable Task Scheduler Emulator to be ready"
           timeout 30 bash -c 'until curl --silent http://localhost:8080/healthz; do sleep 1; done'
           echo "Durable Task Scheduler Emulator is ready"
@@ -28,6 +28,18 @@ runs:
           echo "Waiting for Azurite (Azure Storage emulator) to be ready"
           timeout 30 bash -c 'until curl --silent http://localhost:10000/devstoreaccount1; do sleep 1; done'
           echo "Azurite (Azure Storage emulator) is ready"
+      - name: Start Redis
+        shell: bash
+        run: |
+          if [ "$(docker ps -aq -f name=redis)" ]; then
+            echo "Stopping and removing existing Redis"
+            docker rm -f redis
+          fi
+          echo "Starting Redis"
+          docker run -d --name redis -p 6379:6379 redis:latest
+          echo "Waiting for Redis to be ready"
+          timeout 30 bash -c 'until docker exec redis redis-cli ping | grep -q PONG; do sleep 1; done'
+          echo "Redis is ready"
       - name: Install Azure Functions Core Tools
         shell: bash
         run: |

.github/copilot-instructions.md

@@ -14,6 +14,8 @@ Here are some general guidelines that apply to all code.
 
 - The top of all *.cs files should have a copyright notice: `// Copyright (c) Microsoft. All rights reserved.`
 - All public methods and classes should have XML documentation comments.
+- After adding, modifying or deleting code, run `dotnet build`, and then fix any reported build errors.
+- After adding or modifying code, run `dotnet format` to automatically fix any formatting errors.
 
 ### C# Sample Code Guidelines
 

.github/upgrades/prompts/SemanticKernelToAgentFramework.md

@@ -105,7 +105,7 @@ After completing migration, verify these specific items:
 1. **Compilation**: Execute `dotnet build` on all modified projects - zero errors required
 2. **Namespace Updates**: Confirm all `using Microsoft.SemanticKernel.Agents` statements are replaced
 3. **Method Calls**: Verify all `InvokeAsync` calls are changed to `RunAsync`
-4. **Return Types**: Confirm handling of `AgentRunResponse` instead of `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>`
+4. **Return Types**: Confirm handling of `AgentResponse` instead of `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>`
 5. **Thread Creation**: Validate all thread creation uses `agent.GetNewThread()` pattern
 6. **Tool Registration**: Ensure `[KernelFunction]` attributes are removed and `AIFunctionFactory.Create()` is used
 7. **Options Configuration**: Verify `AgentRunOptions` or `ChatClientAgentRunOptions` replaces `AgentInvokeOptions`
@@ -119,7 +119,7 @@ Agent Framework provides functionality for creating and managing AI agents throu
 Key API differences:
 - Agent creation: Remove Kernel dependency, use direct client-based creation
 - Method names: `InvokeAsync` → `RunAsync`, `InvokeStreamingAsync` → `RunStreamingAsync`
-- Return types: `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>` → `AgentRunResponse`
+- Return types: `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>` → `AgentResponse`
 - Thread creation: Provider-specific constructors → `agent.GetNewThread()`
 - Tool registration: `KernelPlugin` system → Direct `AIFunction` registration
 - Options: `AgentInvokeOptions` → Provider-specific run options (e.g., `ChatClientAgentRunOptions`)
@@ -166,8 +166,8 @@ Replace these method calls:
 | `thread.DeleteAsync()` | Provider-specific cleanup | Use provider client directly |
 
 Return type changes:
-- `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>` → `AgentRunResponse`
-- `IAsyncEnumerable<StreamingChatMessageContent>` → `IAsyncEnumerable<AgentRunResponseUpdate>`
+- `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>` → `AgentResponse`
+- `IAsyncEnumerable<StreamingChatMessageContent>` → `IAsyncEnumerable<AgentResponseUpdate>`
 </api_changes>
 
 <configuration_changes>
@@ -191,8 +191,8 @@ Agent Framework changes these behaviors compared to Semantic Kernel Agents:
 1. **Thread Management**: Agent Framework automatically manages thread state. Semantic Kernel required manual thread updates in some scenarios (e.g., OpenAI Responses).
 
 2. **Return Types**:
-   - Non-streaming: Returns single `AgentRunResponse` instead of `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>`
-   - Streaming: Returns `IAsyncEnumerable<AgentRunResponseUpdate>` instead of `IAsyncEnumerable<StreamingChatMessageContent>`
+   - Non-streaming: Returns single `AgentResponse` instead of `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>`
+   - Streaming: Returns `IAsyncEnumerable<AgentResponseUpdate>` instead of `IAsyncEnumerable<StreamingChatMessageContent>`
 
 3. **Tool Registration**: Agent Framework uses direct function registration without requiring `[KernelFunction]` attributes.
 
@@ -397,7 +397,7 @@ await foreach (AgentResponseItem<ChatMessageContent> item in agent.InvokeAsync(u
 
 **With this Agent Framework non-streaming pattern:**
 ```csharp
-AgentRunResponse result = await agent.RunAsync(userInput, thread, options);
+AgentResponse result = await agent.RunAsync(userInput, thread, options);
 Console.WriteLine(result);
 ```
 
@@ -411,7 +411,7 @@ await foreach (StreamingChatMessageContent update in agent.InvokeStreamingAsync(
 
 **With this Agent Framework streaming pattern:**
 ```csharp
-await foreach (AgentRunResponseUpdate update in agent.RunStreamingAsync(userInput, thread, options))
+await foreach (AgentResponseUpdate update in agent.RunStreamingAsync(userInput, thread, options))
 {
     Console.Write(update);
 }
@@ -420,8 +420,8 @@ await foreach (AgentRunResponseUpdate update in agent.RunStreamingAsync(userInpu
 **Required changes:**
 1. Replace `agent.InvokeAsync()` with `agent.RunAsync()`
 2. Replace `agent.InvokeStreamingAsync()` with `agent.RunStreamingAsync()`
-3. Change return type handling from `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>` to `AgentRunResponse`
-4. Change streaming type from `StreamingChatMessageContent` to `AgentRunResponseUpdate`
+3. Change return type handling from `IAsyncEnumerable<AgentResponseItem<ChatMessageContent>>` to `AgentResponse`
+4. Change streaming type from `StreamingChatMessageContent` to `AgentResponseUpdate`
 5. Remove `await foreach` for non-streaming calls
 6. Access message content directly from result object instead of iterating
 </api_changes>
@@ -661,7 +661,7 @@ await foreach (var result in agent.InvokeAsync(input, thread, options))
 ```csharp
 ChatClientAgentRunOptions options = new(new ChatOptions { MaxOutputTokens = 1000 });
 
-AgentRunResponse result = await agent.RunAsync(input, thread, options);
+AgentResponse result = await agent.RunAsync(input, thread, options);
 Console.WriteLine(result);
 
 // Access underlying content when needed:
@@ -689,7 +689,7 @@ await foreach (var result in agent.InvokeAsync(input, thread, options))
 
 **With this Agent Framework non-streaming usage pattern:**
 ```csharp
-AgentRunResponse result = await agent.RunAsync(input, thread, options);
+AgentResponse result = await agent.RunAsync(input, thread, options);
 Console.WriteLine($"Tokens: {result.Usage.TotalTokenCount}");
 ```
 
@@ -709,7 +709,7 @@ await foreach (StreamingChatMessageContent response in agent.InvokeStreamingAsyn
 
 **With this Agent Framework streaming usage pattern:**
 ```csharp
-await foreach (AgentRunResponseUpdate update in agent.RunStreamingAsync(input, thread, options))
+await foreach (AgentResponseUpdate update in agent.RunStreamingAsync(input, thread, options))
 {
     if (update.Contents.OfType<UsageContent>().FirstOrDefault() is { } usageContent)
     {
@@ -839,7 +839,7 @@ var agentOptions = new ChatClientAgentRunOptions(new ChatOptions
 {
     MaxOutputTokens = 8000,
     // Breaking glass to access provider-specific options
-    RawRepresentationFactory = (_) => new OpenAI.Responses.ResponseCreationOptions()
+    RawRepresentationFactory = (_) => new OpenAI.Responses.CreateResponseOptions()
     {
         ReasoningOptions = new()
         {

.github/workflows/codeql-analysis.yml

@@ -32,7 +32,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/dotnet-build-and-test.yml

@@ -35,19 +35,25 @@ jobs:
       contents: read
       pull-requests: read
     outputs:
-      dotnetChanges: ${{ steps.filter.outputs.dotnet}}
+      dotnetChanges: ${{ steps.filter.outputs.dotnet }}
+      cosmosDbChanges: ${{ steps.filter.outputs.cosmosdb }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: dorny/paths-filter@v3
         id: filter
         with:
           filters: |
             dotnet:
               - 'dotnet/**'
+            cosmosdb:
+              - 'dotnet/src/Microsoft.Agents.AI.CosmosNoSql/**'
       # run only if 'dotnet' files were changed
       - name: dotnet tests
         if: steps.filter.outputs.dotnet == 'true'
         run: echo "Dotnet file"
+      - name: dotnet CosmosDB tests
+        if: steps.filter.outputs.cosmosdb == 'true'
+        run: echo "Dotnet CosmosDB changes"
       # run only if not 'dotnet' files were changed
       - name: not dotnet tests
         if: steps.filter.outputs.dotnet != 'true'
@@ -68,7 +74,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     environment: ${{ matrix.environment }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
             persist-credentials: false
             sparse-checkout: |
@@ -78,8 +84,18 @@ jobs:
               python
               workflow-samples
 
+      # Start Cosmos DB Emulator for all integration tests and only for unit tests when CosmosDB changes happened)
+      - name: Start Azure Cosmos DB Emulator
+        if: ${{ runner.os == 'Windows' && (needs.paths-filter.outputs.cosmosDbChanges == 'true' || (github.event_name != 'pull_request' && matrix.integration-tests)) }}
+        shell: pwsh
+        run: |
+          Write-Host "Launching Azure Cosmos DB Emulator"
+          Import-Module "$env:ProgramFiles\Azure Cosmos DB Emulator\PSModules\Microsoft.Azure.CosmosDB.Emulator"
+          Start-CosmosDbEmulator -NoUI -Key "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
+          echo "COSMOS_EMULATOR_AVAILABLE=true" >> $env:GITHUB_ENV
+
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v5.0.1
+        uses: actions/setup-dotnet@v5.1.0
         with:
           global-json-file: ${{ github.workspace }}/dotnet/global.json
       - name: Build dotnet solutions
@@ -124,16 +140,6 @@ jobs:
           popd
           rm -rf "$TEMP_DIR"
 
-      # Start Cosmos DB Emulator for Cosmos-based unit tests (only on Windows)
-      - name: Start Azure Cosmos DB Emulator
-        if: runner.os == 'Windows'
-        shell: pwsh
-        run: |
-          Write-Host "Launching Azure Cosmos DB Emulator"
-          Import-Module "$env:ProgramFiles\Azure Cosmos DB Emulator\PSModules\Microsoft.Azure.CosmosDB.Emulator"
-          Start-CosmosDbEmulator -NoUI -Key "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
-          echo "COSMOS_EMULATOR_AVAILABLE=true" >> $env:GITHUB_ENV
-
       - name: Run Unit Tests
         shell: bash
         run: |
@@ -141,7 +147,7 @@ jobs:
           for project in $UT_PROJECTS; do
             # Query the project's target frameworks using MSBuild with the current configuration
             target_frameworks=$(dotnet msbuild $project -getProperty:TargetFrameworks -p:Configuration=${{ matrix.configuration }} -nologo 2>/dev/null | tr -d '\r')
-            
+
             # Check if the project supports the target framework
             if [[ "$target_frameworks" == *"${{ matrix.targetFramework }}"* ]]; then
               if [[ "${{ matrix.targetFramework }}" == "${{ env.COVERAGE_FRAMEWORK }}" ]]; then
@@ -159,8 +165,8 @@ jobs:
           COSMOSDB_KEY: C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==
 
       - name: Log event name and matrix integration-tests
-        shell: bash 
-        run: echo "github.event_name:${{ github.event_name }} matrix.integration-tests:${{ matrix.integration-tests }} github.event.action:${{ github.event.action }} github.event.pull_request.merged:${{ github.event.pull_request.merged }}" 
+        shell: bash
+        run: echo "github.event_name:${{ github.event_name }} matrix.integration-tests:${{ matrix.integration-tests }} github.event.action:${{ github.event.action }} github.event.pull_request.merged:${{ github.event.pull_request.merged }}"
 
       - name: Azure CLI Login
         if: github.event_name != 'pull_request' && matrix.integration-tests
@@ -186,10 +192,10 @@ jobs:
           for project in $INTEGRATION_TEST_PROJECTS; do
             # Query the project's target frameworks using MSBuild with the current configuration
             target_frameworks=$(dotnet msbuild $project -getProperty:TargetFrameworks -p:Configuration=${{ matrix.configuration }} -nologo 2>/dev/null | tr -d '\r')
-            
+
             # Check if the project supports the target framework
             if [[ "$target_frameworks" == *"${{ matrix.targetFramework }}"* ]]; then
-              dotnet test -f ${{ matrix.targetFramework }} -c ${{ matrix.configuration }} $project --no-build -v Normal --logger trx
+              dotnet test -f ${{ matrix.targetFramework }} -c ${{ matrix.configuration }} $project --no-build -v Normal --logger trx --filter "Category!=IntegrationDisabled"
             else
               echo "Skipping $project - does not support target framework ${{ matrix.targetFramework }} (supports: $target_frameworks)"
             fi
@@ -225,7 +231,7 @@ jobs:
 
       - name: Upload coverage report artifact
         if: matrix.targetFramework == env.COVERAGE_FRAMEWORK
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: CoverageReport-${{ matrix.os }}-${{ matrix.targetFramework }}-${{ matrix.configuration }} # Artifact name
           path: ./TestResults/Reports # Directory containing files to upload

.github/workflows/dotnet-format.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Check out code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           persist-credentials: false

.github/workflows/label-issues.yml

@@ -45,19 +45,58 @@ jobs:
               labels.push("triage")
             }
 
-            // Check if the body or the title contains the word 'python' (case-insensitive)
-            if ((body != null && body.match(/python/i)) || (title != null && title.match(/python/i))) {
-              // Add the 'python' label to the array
-              labels.push("python")
+            // Helper function to extract field value from issue form body
+            // Issue forms format fields as: ### Field Name\n\nValue
+            function getFormFieldValue(body, fieldName) {
+              if (!body) return null
+              const regex = new RegExp(`###\\s*${fieldName}\\s*\\n\\n([^\\n#]+)`, 'i')
+              const match = body.match(regex)
+              return match ? match[1].trim() : null
             }
 
-            // Check if the body or the title contains the words 'dotnet', '.net', 'c#' or 'csharp' (case-insensitive)
-            if ((body != null && body.match(/.net/i)) || (title != null && title.match(/.net/i)) ||
-                (body != null && body.match(/dotnet/i)) || (title != null && title.match(/dotnet/i)) ||
-                (body != null && body.match(/C#/i)) || (title != null && title.match(/C#/i)) ||
-                (body != null && body.match(/csharp/i)) || (title != null && title.match(/csharp/i))) {
-              // Add the '.NET' label to the array
-              labels.push(".NET")
+            // Check for language from issue form dropdown first
+            const languageField = getFormFieldValue(body, 'Language')
+            let languageLabelAdded = false
+
+            if (languageField) {
+              if (languageField === 'Python') {
+                labels.push("python")
+                languageLabelAdded = true
+              } else if (languageField === '.NET') {
+                labels.push(".NET")
+                languageLabelAdded = true
+              }
+              // 'None / Not Applicable' - don't add any language label
+            }
+
+            // Fallback: Check if the body or the title contains the word 'python' (case-insensitive)
+            // Only if language wasn't already determined from the form field
+            if (!languageLabelAdded) {
+              if ((body != null && body.match(/python/i)) || (title != null && title.match(/python/i))) {
+                // Add the 'python' label to the array
+                labels.push("python")
+              }
+
+              // Check if the body or the title contains the words 'dotnet', '.net', 'c#' or 'csharp' (case-insensitive)
+              if ((body != null && body.match(/\.net/i)) || (title != null && title.match(/\.net/i)) ||
+                  (body != null && body.match(/dotnet/i)) || (title != null && title.match(/dotnet/i)) ||
+                  (body != null && body.match(/C#/i)) || (title != null && title.match(/C#/i)) ||
+                  (body != null && body.match(/csharp/i)) || (title != null && title.match(/csharp/i))) {
+                // Add the '.NET' label to the array
+                labels.push(".NET")
+              }
+            }
+
+            // Check for issue type from issue form dropdown
+            const issueTypeField = getFormFieldValue(body, 'Type of Issue')
+            if (issueTypeField) {
+              if (issueTypeField === 'Bug') {
+                labels.push("bug")
+              } else if (issueTypeField === 'Feature Request') {
+                labels.push("enhancement")
+              } else if (issueTypeField === 'Question') {
+                labels.push("question")
+              }
             }
 
             // Add the labels to the issue (only if there are labels to add)

.github/workflows/markdown-link-check.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-22.04
     # check out the latest version of the code
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/merge-gatekeeper.yml

@@ -29,3 +29,4 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           timeout: 3600
           interval: 30
+          ignored: CodeQL,CodeQL analysis (csharp)

.github/workflows/python-check-coverage.py

@@ -0,0 +1,266 @@
+#!/usr/bin/env python3
+# Copyright (c) Microsoft. All rights reserved.
+"""Check Python test coverage against threshold for enforced modules.
+
+This script parses a Cobertura XML coverage report and enforces a minimum
+coverage threshold on specific modules. Non-enforced modules are reported
+for visibility but don't block the build.
+
+Usage:
+    python python-check-coverage.py <coverage-xml-path> <threshold>
+
+Example:
+    python python-check-coverage.py python-coverage.xml 85
+"""
+
+import sys
+import xml.etree.ElementTree as ET
+from dataclasses import dataclass
+
+# =============================================================================
+# ENFORCED MODULES CONFIGURATION
+# =============================================================================
+# Add or remove modules from this set to control which packages must meet
+# the coverage threshold. Only these modules will fail the build if below
+# threshold. Other modules are reported for visibility only.
+#
+# Module paths should match the package paths as they appear in the coverage
+# report (e.g., "packages.azure-ai.agent_framework_azure_ai" for packages/azure-ai).
+# Sub-modules can be included by specifying their full path.
+# =============================================================================
+ENFORCED_MODULES: set[str] = {
+    "packages.azure-ai.agent_framework_azure_ai",
+    # Add more modules here as coverage improves:
+    # "packages.core.agent_framework",
+    # "packages.core.agent_framework._workflows",
+    # "packages.anthropic.agent_framework_anthropic",
+}
+
+
+@dataclass
+class PackageCoverage:
+    """Coverage data for a single package."""
+
+    name: str
+    line_rate: float
+    branch_rate: float
+    lines_valid: int
+    lines_covered: int
+    branches_valid: int
+    branches_covered: int
+
+    @property
+    def line_coverage_percent(self) -> float:
+        """Return line coverage as a percentage."""
+        return self.line_rate * 100
+
+    @property
+    def branch_coverage_percent(self) -> float:
+        """Return branch coverage as a percentage."""
+        return self.branch_rate * 100
+
+
+def parse_coverage_xml(xml_path: str) -> tuple[dict[str, PackageCoverage], float, float]:
+    """Parse Cobertura XML and extract per-package coverage data.
+
+    Args:
+        xml_path: Path to the Cobertura XML coverage report.
+
+    Returns:
+        A tuple of (packages_dict, overall_line_rate, overall_branch_rate).
+    """
+    tree = ET.parse(xml_path)
+    root = tree.getroot()
+
+    # Get overall coverage from root element
+    overall_line_rate = float(root.get("line-rate", 0))
+    overall_branch_rate = float(root.get("branch-rate", 0))
+
+    packages: dict[str, PackageCoverage] = {}
+
+    for package in root.findall(".//package"):
+        package_path = package.get("name", "unknown")
+
+        line_rate = float(package.get("line-rate", 0))
+        branch_rate = float(package.get("branch-rate", 0))
+
+        # Count lines and branches from classes within this package
+        lines_valid = 0
+        lines_covered = 0
+        branches_valid = 0
+        branches_covered = 0
+
+        for class_elem in package.findall(".//class"):
+            for line in class_elem.findall(".//line"):
+                lines_valid += 1
+                if int(line.get("hits", 0)) > 0:
+                    lines_covered += 1
+                # Branch coverage from line elements
+                if line.get("branch") == "true":
+                    condition_coverage = line.get("condition-coverage", "")
+                    if condition_coverage:
+                        # Parse "X% (covered/total)" format
+                        try:
+                            coverage_parts = condition_coverage.split("(")[1].rstrip(")").split("/")
+                            branches_covered += int(coverage_parts[0])
+                            branches_valid += int(coverage_parts[1])
+                        except (IndexError, ValueError):
+                            # Ignore malformed condition-coverage strings; treat this line as having no branch data.
+                            pass
+
+        # Use full package path as the key (no aggregation)
+        packages[package_path] = PackageCoverage(
+            name=package_path,
+            line_rate=line_rate if lines_valid == 0 else lines_covered / lines_valid,
+            branch_rate=branch_rate if branches_valid == 0 else branches_covered / branches_valid,
+            lines_valid=lines_valid,
+            lines_covered=lines_covered,
+            branches_valid=branches_valid,
+            branches_covered=branches_covered,
+        )
+
+    return packages, overall_line_rate, overall_branch_rate
+
+
+def format_coverage_value(coverage: float, threshold: float, is_enforced: bool) -> str:
+    """Format a coverage value with optional pass/fail indicator.
+
+    Args:
+        coverage: Coverage percentage (0-100).
+        threshold: Minimum required coverage percentage.
+        is_enforced: Whether this module is enforced.
+
+    Returns:
+        Formatted string like "85.5%" or "85.5% ✅" or "75.0% ❌".
+    """
+    formatted = f"{coverage:.1f}%"
+    if is_enforced:
+        icon = "✅" if coverage >= threshold else "❌"
+        formatted = f"{formatted} {icon}"
+    return formatted
+
+
+def print_coverage_table(
+    packages: dict[str, PackageCoverage],
+    threshold: float,
+    overall_line_rate: float,
+    overall_branch_rate: float,
+) -> None:
+    """Print a formatted coverage summary table.
+
+    Args:
+        packages: Dictionary of package name to coverage data.
+        threshold: Minimum required coverage percentage.
+        overall_line_rate: Overall line coverage rate (0-1).
+        overall_branch_rate: Overall branch coverage rate (0-1).
+    """
+    print("\n" + "=" * 80)
+    print("PYTHON TEST COVERAGE REPORT")
+    print("=" * 80)
+
+    # Overall coverage
+    print(f"\nOverall Line Coverage:   {overall_line_rate * 100:.1f}%")
+    print(f"Overall Branch Coverage: {overall_branch_rate * 100:.1f}%")
+    print(f"Threshold:               {threshold}%")
+
+    # Package table
+    print("\n" + "-" * 110)
+    print(f"{'Package':<80} {'Lines':<15} {'Line Cov':<15}")
+    print("-" * 110)
+
+    # Sort: enforced modules first, then alphabetically
+    sorted_packages = sorted(
+        packages.values(),
+        key=lambda p: (p.name not in ENFORCED_MODULES, p.name),
+    )
+
+    for pkg in sorted_packages:
+        is_enforced = pkg.name in ENFORCED_MODULES
+        enforced_marker = "[ENFORCED] " if is_enforced else ""
+        line_cov = format_coverage_value(pkg.line_coverage_percent, threshold, is_enforced)
+        lines_info = f"{pkg.lines_covered}/{pkg.lines_valid}"
+        package_label = f"{enforced_marker}{pkg.name}"
+
+        print(f"{package_label:<80} {lines_info:<15} {line_cov:<15}")
+
+    print("-" * 110)
+
+
+def check_coverage(xml_path: str, threshold: float) -> bool:
+    """Check if all enforced modules meet the coverage threshold.
+
+    Args:
+        xml_path: Path to the Cobertura XML coverage report.
+        threshold: Minimum required coverage percentage.
+
+    Returns:
+        True if all enforced modules pass, False otherwise.
+    """
+    packages, overall_line_rate, overall_branch_rate = parse_coverage_xml(xml_path)
+
+    print_coverage_table(packages, threshold, overall_line_rate, overall_branch_rate)
+
+    # Check enforced modules
+    failed_modules: list[str] = []
+    missing_modules: list[str] = []
+
+    for module_name in ENFORCED_MODULES:
+        if module_name not in packages:
+            missing_modules.append(module_name)
+            continue
+
+        pkg = packages[module_name]
+        if pkg.line_coverage_percent < threshold:
+            failed_modules.append(f"{module_name} ({pkg.line_coverage_percent:.1f}%)")
+
+    # Report results
+    if missing_modules:
+        print(f"\n❌ FAILED: Enforced modules not found in coverage report: {', '.join(missing_modules)}")
+        return False
+
+    if failed_modules:
+        print(f"\n❌ FAILED: The following enforced modules are below {threshold}% coverage threshold:")
+        for module in failed_modules:
+            print(f"   - {module}")
+        print("\nTo fix: Add more tests to improve coverage for the failing modules.")
+        return False
+
+    if ENFORCED_MODULES:
+        found_enforced = [m for m in ENFORCED_MODULES if m in packages]
+        if found_enforced:
+            print(f"\n✅ PASSED: All enforced modules meet the {threshold}% coverage threshold.")
+
+    return True
+
+
+def main() -> int:
+    """Main entry point.
+
+    Returns:
+        Exit code: 0 for success, 1 for failure.
+    """
+    if len(sys.argv) != 3:
+        print(f"Usage: {sys.argv[0]} <coverage-xml-path> <threshold>")
+        print(f"Example: {sys.argv[0]} python-coverage.xml 85")
+        return 1
+
+    xml_path = sys.argv[1]
+    try:
+        threshold = float(sys.argv[2])
+    except ValueError:
+        print(f"Error: Invalid threshold value: {sys.argv[2]}")
+        return 1
+
+    try:
+        success = check_coverage(xml_path, threshold)
+        return 0 if success else 1
+    except FileNotFoundError:
+        print(f"Error: Coverage file not found: {xml_path}")
+        return 1
+    except ET.ParseError as e:
+        print(f"Error: Failed to parse coverage XML: {e}")
+        return 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())

.github/workflows/python-code-quality.yml

@@ -27,7 +27,7 @@ jobs:
     env:
       UV_PYTHON: ${{ matrix.python-version }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up python and install the project
@@ -39,7 +39,7 @@ jobs:
         env:
           # Configure a constant location for the uv cache
           UV_CACHE_DIR: /tmp/.uv-cache
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           path: ~/.cache/pre-commit
           key: pre-commit|${{ matrix.python-version }}|${{ hashFiles('python/.pre-commit-config.yaml') }}

.github/workflows/python-docs.yml

@@ -24,7 +24,7 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up uv
         uses: astral-sh/setup-uv@v7
         with:

.github/workflows/python-lab-tests.yml

@@ -24,7 +24,7 @@ jobs:
     outputs:
       pythonChanges: ${{ steps.filter.outputs.python}}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: dorny/paths-filter@v3
         id: filter
         with:
@@ -59,7 +59,7 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up python and install the project
         id: python-setup

.github/workflows/python-merge-tests.yml

@@ -28,7 +28,7 @@ jobs:
     outputs:
       pythonChanges: ${{ steps.filter.outputs.python}}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: dorny/paths-filter@v3
         id: filter
         with:
@@ -75,7 +75,7 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up python and install the project
         id: python-setup
         uses: ./.github/actions/python-setup
@@ -97,7 +97,7 @@ jobs:
         id: azure-functions-setup
       - name: Test with pytest
         timeout-minutes: 10
-        run: uv run poe all-tests -n logical --dist loadfile --dist worksteal --timeout 300 --retries 3 --retry-delay 10
+        run: uv run poe all-tests -n logical --dist loadfile --dist worksteal --timeout 900 --retries 3 --retry-delay 10
         working-directory: ./python
       - name: Test core samples
         timeout-minutes: 10
@@ -135,7 +135,7 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up python and install the project
         id: python-setup
         uses: ./.github/actions/python-setup
@@ -154,7 +154,7 @@ jobs:
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
       - name: Test with pytest
         timeout-minutes: 10
-        run: uv run poe azure-ai-tests -n logical --dist loadfile --dist worksteal --timeout 300 --retries 3 --retry-delay 10
+        run: uv run --directory packages/azure-ai poe integration-tests -n logical --dist loadfile --dist worksteal --timeout 300 --retries 3 --retry-delay 10
         working-directory: ./python
       - name: Test Azure AI samples
         timeout-minutes: 10

.github/workflows/python-release.yml

@@ -23,7 +23,7 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up python and install the project
         id: python-setup
         uses: ./.github/actions/python-setup

.github/workflows/python-test-coverage-report.yml

@@ -19,9 +19,9 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Download coverage report
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v7
         with:
           github-token: ${{ secrets.GH_ACTIONS_PR_WRITE }}
           run-id: ${{ github.event.workflow_run.id }}
@@ -34,9 +34,16 @@ jobs:
         # because the workflow_run event does not have access to the PR number
         # The PR number is needed to post the comment on the PR
         run: |
-          PR_NUMBER=$(cat pr_number)
-          echo "PR number: $PR_NUMBER"
-          echo "PR_NUMBER=$PR_NUMBER" >> $GITHUB_ENV
+          if [ ! -s pr_number ]; then
+            echo "PR number file 'pr_number' is missing or empty"
+            exit 1
+          fi
+          PR_NUMBER=$(head -1 pr_number | tr -dc '0-9')
+          if [ -z "$PR_NUMBER" ]; then
+            echo "PR number file 'pr_number' does not contain a valid PR number"
+            exit 1
+          fi
+          echo "PR_NUMBER=$PR_NUMBER" >> "$GITHUB_ENV"
       - name: Pytest coverage comment
         id: coverageComment
         uses: MishaKav/pytest-coverage-comment@v1.2.0

.github/workflows/python-test-coverage.yml

@@ -9,6 +9,8 @@ on:
 env:
   # Configure a constant location for the uv cache
   UV_CACHE_DIR: /tmp/.uv-cache
+  # Coverage threshold percentage for enforced modules
+  COVERAGE_THRESHOLD: 85
 
 jobs:
   python-tests-coverage:
@@ -20,7 +22,7 @@ jobs:
     env:
       UV_PYTHON: "3.10"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # Save the PR number to a file since the workflow_run event
       # in the coverage report workflow does not have access to it
       - name: Save PR number
@@ -37,8 +39,10 @@ jobs:
           UV_CACHE_DIR: /tmp/.uv-cache
       - name: Run all tests with coverage report
         run: uv run poe all-tests-cov --cov-report=xml:python-coverage.xml -q --junitxml=pytest.xml
+      - name: Check coverage threshold
+        run: python ${{ github.workspace }}/.github/workflows/python-check-coverage.py python-coverage.xml ${{ env.COVERAGE_THRESHOLD }}
       - name: Upload coverage report
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           path: |
             python/python-coverage.xml

.github/workflows/python-tests.yml

@@ -27,7 +27,7 @@ jobs:
       run:
         working-directory: python
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up python and install the project
         id: python-setup
         uses: ./.github/actions/python-setup

.gitignore

@@ -206,15 +206,17 @@ agents.md
 WARP.md
 **/memory-bank/
 **/projectBrief.md
+**/tmpclaude*
 
 # Azurite storage emulator files
-*/__azurite_db_blob__.json
-*/__azurite_db_blob_extent__.json
-*/__azurite_db_queue__.json
-*/__azurite_db_queue_extent__.json
-*/__azurite_db_table__.json
+*/__azurite_db_blob__.json*
+*/__azurite_db_blob_extent__.json*
+*/__azurite_db_queue__.json*
+*/__azurite_db_queue_extent__.json*
+*/__azurite_db_table__.json*
 */__blobstorage__/
 */__queuestorage__/
+*/AzuriteConfig
 
 # Azure Functions local settings
 local.settings.json
@@ -226,3 +228,4 @@ local.settings.json
 
 # Database files
 *.db
+python/dotnet-ref

agent-samples/README.md

@@ -1,3 +1,3 @@
 # Declarative Agents
 
-This folder contains sample agent definitions than be ran using the declarative agent support, for python see the [declarative agent python sample folder](../python/samples/getting_started/declarative/).
+This folder contains sample agent definitions that can be run using the declarative agent support, for python see the [declarative agent python sample folder](../python/samples/getting_started/declarative/).

agent-samples/openai/OpenAIResponses.yaml

@@ -10,19 +10,19 @@ model:
         temperature: 0.9
         topP: 0.95
     connection:
-        kind: ApiKey
-        key: =Env.OPENAI_API_KEY
+        kind: key
+        apiKey: =Env.OPENAI_APIKEY
 outputSchema:
     properties:
         language:
-            type: string
+            kind: string
             required: true
             description: The language of the answer.
         answer:
-            type: string
+            kind: string
             required: true
             description: The answer text.
         type:
-            type: string
+            kind: string
             required: true
             description: The type of the response.

docs/decisions/0001-agent-run-response.md

@@ -64,7 +64,7 @@ Approaches observed from the compared SDKs:
 | AutoGen | **Approach 1** Separates messages into Agent-Agent (maps to Primary) and Internal (maps to Secondary) and these are returned as separate properties on the agent response object.  See [types of messages](https://microsoft.github.io/autogen/stable/user-guide/agentchat-user-guide/tutorial/messages.html#types-of-messages) and [Response](https://microsoft.github.io/autogen/stable/reference/python/autogen_agentchat.base.html#autogen_agentchat.base.Response) | **Approach 2** Returns a stream of internal events and the last item is a Response object. See [ChatAgent.on_messages_stream](https://microsoft.github.io/autogen/stable/reference/python/autogen_agentchat.base.html#autogen_agentchat.base.ChatAgent.on_messages_stream) |
 | OpenAI Agent SDK | **Approach 1** Separates new_items (Primary+Secondary) from final output (Primary) as separate properties on the [RunResult](https://github.com/openai/openai-agents-python/blob/main/src/agents/result.py#L39) | **Approach 1** Similar to non-streaming, has a way of streaming updates via a method on the response object which includes all data, and then a separate final output property on the response object which is populated only when the run is complete. See [RunResultStreaming](https://github.com/openai/openai-agents-python/blob/main/src/agents/result.py#L136) |
 | Google ADK | **Approach 2** [Emits events](https://google.github.io/adk-docs/runtime/#step-by-step-breakdown) with [FinalResponse](https://github.com/google/adk-java/blob/main/core/src/main/java/com/google/adk/events/Event.java#L232) true (Primary) / false (Secondary) and callers have to filter out those with false to get just the final response message | **Approach 2** Similar to non-streaming except [events](https://google.github.io/adk-docs/runtime/#streaming-vs-non-streaming-output-partialtrue) are emitted with [Partial](https://github.com/google/adk-java/blob/main/core/src/main/java/com/google/adk/events/Event.java#L133) true to indicate that they are streaming messages. A final non partial event is also emitted. |
-| AWS (Strands) | **Approach 3** Returns an [AgentResult](https://strandsagents.com/latest/api-reference/agent/#strands.agent.agent_result.AgentResult) (Primary) with messages and a reason for the run's completion. | **Approach 2** [Streams events](https://strandsagents.com/latest/api-reference/agent/#strands.agent.agent.Agent.stream_async) (Primary+Secondary) including, response text, current_tool_use, even data from "callbacks" (strands plugins) |
+| AWS (Strands) | **Approach 3** Returns an [AgentResult](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent_result/) (Primary) with messages and a reason for the run's completion. | **Approach 2** [Streams events](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent/#strands.agent.agent.Agent.stream_async) (Primary+Secondary) including, response text, current_tool_use, even data from "callbacks" (strands plugins) |
 | LangGraph | **Approach 2** A mixed list of all [messages](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) | **Approach 2** A mixed list of all [messages](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) |
 | Agno | **Combination of various approaches** Returns a [RunResponse](https://docs.agno.com/reference/agents/run-response) object with text content, messages (essentially chat history including inputs and instructions), reasoning and thinking text properties. Secondary events could potentially be extracted from messages. | **Approach 2** Returns [RunResponseEvent](https://docs.agno.com/reference/agents/run-response#runresponseevent-types-and-attributes) objects including tool call, memory update, etc, information, where the [RunResponseCompletedEvent](https://docs.agno.com/reference/agents/run-response#runresponsecompletedevent) has similar properties to RunResponse|
 | A2A | **Approach 3** Returns a [Task or Message](https://a2aproject.github.io/A2A/latest/specification/#71-messagesend) where the message is the final result (Primary) and task is a reference to a long running process. | **Approach 2** Returns a [stream](https://a2aproject.github.io/A2A/latest/specification/#72-messagestream) that contains task updates (Secondary) and a final message (Primary) |
@@ -163,8 +163,8 @@ foreach (var update in response.Messages)
 ### Option 2 Run: Container with Primary and Secondary Properties, RunStreaming: Stream of Primary + Secondary
 
 Run returns a new response type that has separate properties for the Primary Content and the Secondary Updates leading up to it.
-The Primary content is available in the `AgentRunResponse.Messages` property while Secondary updates are in a new `AgentRunResponse.Updates` property.
-`AgentRunResponse.Text` returns the Primary content text.
+The Primary content is available in the `AgentResponse.Messages` property while Secondary updates are in a new `AgentResponse.Updates` property.
+`AgentResponse.Text` returns the Primary content text.
 
 Since streaming would still need to return an `IAsyncEnumerable` of updates, the design would differ from non-streaming.
 With non-streaming Primary and Secondary content is split into separate lists, while with streaming it's combined in one stream.
@@ -232,24 +232,24 @@ await foreach (var update in responses)
 ```csharp
 class Agent
 {
-    public abstract Task<AgentRunResponse> RunAsync(
+    public abstract Task<AgentResponse> RunAsync(
         IReadOnlyCollection<ChatMessage> messages,
         AgentThread? thread = null,
         AgentRunOptions? options = null,
         CancellationToken cancellationToken = default);
 
-    public abstract IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    public abstract IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(
         IReadOnlyCollection<ChatMessage> messages,
         AgentThread? thread = null,
         AgentRunOptions? options = null,
         CancellationToken cancellationToken = default);
 }
 
-class AgentRunResponse : ChatResponse
+class AgentResponse : ChatResponse
 {
 }
 
-public class AgentRunResponseUpdate : ChatResponseUpdate
+public class AgentResponseUpdate : ChatResponseUpdate
 {
 }
 ```
@@ -265,20 +265,20 @@ The new types could also exclude properties that make less sense for agents, lik
 ```csharp
 class Agent
 {
-    public abstract Task<AgentRunResponse> RunAsync(
+    public abstract Task<AgentResponse> RunAsync(
         IReadOnlyCollection<ChatMessage> messages,
         AgentThread? thread = null,
         AgentRunOptions? options = null,
         CancellationToken cancellationToken = default);
 
-    public abstract IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    public abstract IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(
         IReadOnlyCollection<ChatMessage> messages,
         AgentThread? thread = null,
         AgentRunOptions? options = null,
         CancellationToken cancellationToken = default);
 }
 
-class AgentRunResponse // Compare with ChatResponse
+class AgentResponse // Compare with ChatResponse
 {
     public string Text { get; } // Aggregation of TextContent from messages.
 
@@ -294,12 +294,12 @@ class AgentRunResponse // Compare with ChatResponse
     public AdditionalPropertiesDictionary? AdditionalProperties { get; set; }
 }
 
-// Not Included in AgentRunResponse compared to ChatResponse
+// Not Included in AgentResponse compared to ChatResponse
 public ChatFinishReason? FinishReason { get; set; }
 public string? ConversationId { get; set; }
 public string? ModelId { get; set; }
 
-public class AgentRunResponseUpdate // Compare with ChatResponseUpdate
+public class AgentResponseUpdate // Compare with ChatResponseUpdate
 {
     public string Text { get; } // Aggregation of TextContent from Contents.
 
@@ -317,7 +317,7 @@ public class AgentRunResponseUpdate // Compare with ChatResponseUpdate
     public AdditionalPropertiesDictionary? AdditionalProperties { get; set; }
 }
 
-// Not Included in AgentRunResponseUpdate compared to ChatResponseUpdate
+// Not Included in AgentResponseUpdate compared to ChatResponseUpdate
 public ChatFinishReason? FinishReason { get; set; }
 public string? ConversationId { get; set; }
 public string? ModelId { get; set; }
@@ -360,7 +360,7 @@ public class ChatFinishReason
 ### Option 2: Add another property on responses for AgentRun
 
 ```csharp
-class AgentRunResponse
+class AgentResponse
 {
     ...
     public AgentRun RunReference { get; set; } // Reference to long running process
@@ -368,7 +368,7 @@ class AgentRunResponse
 }
 
 
-public class AgentRunResponseUpdate
+public class AgentResponseUpdate
 {
     ...
     public AgentRun RunReference { get; set; } // Reference to long running process
@@ -424,7 +424,7 @@ Note that where an agent doesn't support structured output, it may also be possi
 See [Structured Outputs Support](#structured-outputs-support) for a comparison on what other agent frameworks and protocols support.
 
 To support a good user experience for structured outputs, I'm proposing that we follow the pattern used by MEAI.
-We would add a generic version of `AgentRunResponse<T>`, that allows us to get the agent result already deserialized into our preferred type.
+We would add a generic version of `AgentResponse<T>`, that allows us to get the agent result already deserialized into our preferred type.
 This would be coupled with generic overload extension methods for Run that automatically builds a schema from the supplied type and updates
 the run options.
 
@@ -438,14 +438,14 @@ class Movie
     public int ReleaseYear { get; set; }
 }
 
-AgentRunResponse<Movie[]> response = agent.RunAsync<Movie[]>("What are the top 3 children's movies of the 80s.");
+AgentResponse<Movie[]> response = agent.RunAsync<Movie[]>("What are the top 3 children's movies of the 80s.");
 Movie[] movies = response.Result
 ```
 
 If we only support requesting a schema at agent creation time or where an agent has a built in schema, the following would be the preferred approach:
 
 ```csharp
-AgentRunResponse response = agent.RunAsync("What are the top 3 children's movies of the 80s.");
+AgentResponse response = agent.RunAsync("What are the top 3 children's movies of the 80s.");
 Movie[] movies = response.TryParseStructuredOutput<Movie[]>();
 ```
 
@@ -463,7 +463,7 @@ Option 2 chosen so that we can vary Agent responses independently of Chat Client
 ### StructuredOutputs Decision
 
 We will not support structured output per run request, but individual agents are free to allow this on the concrete implementation or at construction time.
-We will however add support for easily extracting a structured output type from the `AgentRunResponse`.
+We will however add support for easily extracting a structured output type from the `AgentResponse`.
 
 ## Addendum 1: AIContext Derived Types for different response types / Gap Analysis (Work in progress)
 
@@ -495,8 +495,8 @@ We need to decide what AIContent types, each agent response type will be mapped
 | SDK | Structured Outputs support |
 |-|-|
 | AutoGen | **Approach 1** Supports [configuring an agent](https://microsoft.github.io/autogen/stable/user-guide/agentchat-user-guide/tutorial/agents.html#structured-output) at agent creation. |
-| Google ADK | **Approach 1** Both [input and output shemas can be specified for LLM Agents](https://google.github.io/adk-docs/agents/llm-agents/#structuring-data-input_schema-output_schema-output_key) at construction time. This option is specific to this agent type and other agent types do not necessarily support |
-| AWS (Strands) | **Approach 2** Supports a special invocation method called [structured_output](https://strandsagents.com/latest/api-reference/agent/#strands.agent.agent.Agent.structured_output) |
+| Google ADK | **Approach 1** Both [input and output schemas can be specified for LLM Agents](https://google.github.io/adk-docs/agents/llm-agents/#structuring-data-input_schema-output_schema-output_key) at construction time. This option is specific to this agent type and other agent types do not necessarily support |
+| AWS (Strands) | **Approach 2** Supports a special invocation method called [structured_output](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent/#strands.agent.agent.Agent.structured_output) |
 | LangGraph | **Approach 1** Supports [configuring an agent](https://langchain-ai.github.io/langgraph/agents/agents/?h=structured#6-configure-structured-output) at agent construction time, and a [structured response](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) can be retrieved as a special property on the agent response |
 | Agno | **Approach 1** Supports [configuring an agent](https://docs.agno.com/examples/getting-started/structured-output) at agent construction time |
 | A2A | **Informal Approach 2** Doesn't formally support schema negotiation, but [hints can be provided via metadata](https://a2a-protocol.org/latest/specification/#97-structured-data-exchange-requesting-and-providing-json) at invocation time |
@@ -508,7 +508,7 @@ We need to decide what AIContent types, each agent response type will be mapped
 |-|-|
 | AutoGen | Supports a [stop reason](https://microsoft.github.io/autogen/stable/reference/python/autogen_agentchat.base.html#autogen_agentchat.base.TaskResult.stop_reason) which is a freeform text string |
 | Google ADK | [No equivalent present](https://github.com/google/adk-python/blob/main/src/google/adk/events/event.py) |
-| AWS (Strands) | Exposes a [stop_reason](https://strandsagents.com/latest/api-reference/types/#strands.types.event_loop.StopReason) property on the [AgentResult](https://strandsagents.com/latest/api-reference/agent/#strands.agent.agent_result.AgentResult) class with options that are tied closely to LLM operations. |
+| AWS (Strands) | Exposes a [stop_reason](https://strandsagents.com/latest/documentation/docs/api-reference/python/types/event_loop/#strands.types.event_loop.StopReason) property on the [AgentResult](https://strandsagents.com/latest/documentation/docs/api-reference/python/agent/agent_result/) class with options that are tied closely to LLM operations. |
 | LangGraph | No equivalent present, output contains only [messages](https://langchain-ai.github.io/langgraph/agents/run_agents/#output-format) |
 | Agno | [No equivalent present](https://docs.agno.com/reference/agents/run-response) |
 | A2A | No equivalent present, response only contains a [message](https://a2a-protocol.org/latest/specification/#64-message-object) or [task](https://a2a-protocol.org/latest/specification/#61-task-object). |

docs/decisions/0005-python-naming-conventions.md

@@ -54,7 +54,7 @@ The table below represents the majority of the naming changes discussed in issue
 | *Mcp* & *Http* | *MCP* & *HTTP* | accepted | Acronyms should be uppercased in class names, according to PEP 8. | None |
 | `agent.run_streaming` | `agent.run_stream` | accepted | Shorter and more closely aligns with AutoGen and Semantic Kernel names for the same methods. | None |
 | `workflow.run_streaming` | `workflow.run_stream` | accepted | In sync with `agent.run_stream` and shorter and more closely aligns with AutoGen and Semantic Kernel names for the same methods. | None |
-| AgentRunResponse & AgentRunResponseUpdate | AgentResponse & AgentResponseUpdate | rejected | Rejected, because it is the response to a run invocation and AgentResponse is too generic. | None |
+| AgentResponse & AgentResponseUpdate | AgentResponse & AgentResponseUpdate | rejected | Rejected, because it is the response to a run invocation and AgentResponse is too generic. | None |
 | *Content | * | rejected | Rejected other content type renames (removing `Content` suffix) because it would reduce clarity and discoverability. | Item was also considered, but rejected as it is very similar to Content, but would be inconsistent with dotnet. |
 | ChatResponse & ChatResponseUpdate | Response & ResponseUpdate | rejected | Rejected, because Response is too generic. | None |
 

docs/decisions/0006-userapproval.md

@@ -161,11 +161,11 @@ while (response.ApprovalRequests.Count > 0)
     response = await agent.RunAsync(messages, thread);
 }
 
-class AgentRunResponse
+class AgentResponse
 {
     ...
 
-    // A new property on AgentRunResponse to aggregate the ApprovalRequestContent items from
+    // A new property on AgentResponse to aggregate the ApprovalRequestContent items from
     // the response messages (Similar to the Text property).
     public IEnumerable<ApprovalRequestContent> ApprovalRequests { get; set; }
 
@@ -251,11 +251,11 @@ while (response.UserInputRequests.Any())
     response = await agent.RunAsync(messages, thread);
 }
 
-class AgentRunResponse
+class AgentResponse
 {
     ...
 
-    // A new property on AgentRunResponse to aggregate the UserInputRequestContent items from
+    // A new property on AgentResponse to aggregate the UserInputRequestContent items from
     // the response messages (Similar to the Text property).
     public IReadOnlyList<UserInputRequestContent> UserInputRequests { get; set; }
 
@@ -366,11 +366,11 @@ while (response.UserInputRequests.Any())
     response = await agent.RunAsync(messages, thread);
 }
 
-class AgentRunResponse
+class AgentResponse
 {
     ...
 
-    // A new property on AgentRunResponse to aggregate the UserInputRequestContent items from
+    // A new property on AgentResponse to aggregate the UserInputRequestContent items from
     // the response messages (Similar to the Text property).
     public IEnumerable<UserInputRequestContent> UserInputRequests { get; set; }
 

docs/decisions/0007-agent-filtering-middleware.md

@@ -115,7 +115,7 @@ public class AIAgent
         }
     }
 
-    public async Task<AgentRunResponse> RunAsync(
+    public async Task<AgentResponse> RunAsync(
         IReadOnlyCollection<ChatMessage> messages,
         AgentThread? thread = null,
         AgentRunOptions? options = null,
@@ -135,7 +135,7 @@ public class AIAgent
         return context.Response ?? throw new InvalidOperationException("Agent execution did not produce a response");
     }
 
-    protected abstract Task<AgentRunResponse> ExecuteCoreLogicAsync(
+    protected abstract Task<AgentResponse> ExecuteCoreLogicAsync(
         IReadOnlyCollection<ChatMessage> messages,
         AgentThread? thread,
         AgentRunOptions? options,
@@ -190,7 +190,7 @@ internal sealed class GuardrailCallbackAgent : DelegatingAIAgent
 
     public GuardrailCallbackAgent(AIAgent innerAgent) : base(innerAgent) { }
 
-    public override async Task<AgentRunResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
+    public override async Task<AgentResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
     {
         var filteredMessages = this.FilterMessages(messages);
         Console.WriteLine($"Guardrail Middleware - Filtered messages: {new ChatResponse(filteredMessages).Text}");
@@ -202,14 +202,14 @@ internal sealed class GuardrailCallbackAgent : DelegatingAIAgent
         return response;
     }
 
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default)
+    public override async IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         var filteredMessages = this.FilterMessages(messages);
         await foreach (var update in this.InnerAgent.RunStreamingAsync(filteredMessages, thread, options, cancellationToken))
         {
             if (update.Text != null)
             {
-                yield return new AgentRunResponseUpdate(update.Role, this.FilterContent(update.Text));
+                yield return new AgentResponseUpdate(update.Role, this.FilterContent(update.Text));
             }
             else
             {
@@ -252,7 +252,7 @@ internal sealed class RunningCallbackHandlerAgent : DelegatingAIAgent
         this._func = func;
     }
 
-    public override async Task<AgentRunResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
+    public override async Task<AgentResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
     {
         var context = new AgentInvokeCallbackContext(this, messages, thread, options, isStreaming: false, cancellationToken);
 
@@ -469,7 +469,7 @@ public sealed class CallbackEnabledAgent : DelegatingAIAgent
         this._callbacksProcessor = callbackMiddlewareProcessor ?? new();
     }
 
-    public override async Task<AgentRunResponse> RunAsync(
+    public override async Task<AgentResponse> RunAsync(
         IEnumerable<ChatMessage> messages,
         AgentThread? thread = null,
         AgentRunOptions? options = null,
@@ -541,7 +541,7 @@ public abstract class AgentContext
 public class AgentRunContext : AgentContext
 {
     public IList<ChatMessage> Messages { get; set; }
-    public AgentRunResponse? Response { get; set; }
+    public AgentResponse? Response { get; set; }
     public AgentThread? Thread { get; }
 
     public AgentRunContext(AIAgent agent, IList<ChatMessage> messages, AgentThread? thread, AgentRunOptions? options)

docs/decisions/0009-support-long-running-operations.md

@@ -687,7 +687,7 @@ This section considers different options for exposing the `RunId`, `Status`, and
 #### 4.1. As AIContent
 
 The `AsyncRunContent` class will represent a long-running operation initiated and managed by an agent/LLM.
-Items of this content type will be returned in a chat message as part of the `AgentRunResponse` or `ChatResponse`
+Items of this content type will be returned in a chat message as part of the `AgentResponse` or `ChatResponse`
 response to represent the long-running operation.
 
 The `AsyncRunContent` class has two properties: `RunId` and `Status`. The `RunId` identifies the 
@@ -1162,29 +1162,29 @@ For cancellation and deletion of long-running operations, new methods will be ad
 public abstract class AIAgent
 {
     // Existing methods...
-    public Task<AgentRunResponse> RunAsync(string message, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default) { ... }
-    public IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(string message, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default) { ... }
+    public Task<AgentResponse> RunAsync(string message, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default) { ... }
+    public IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(string message, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default) { ... }
 
     // New methods for uncommon operations
-    public virtual Task<AgentRunResponse?> CancelRunAsync(string id, AgentCancelRunOptions? options = null, CancellationToken cancellationToken = default)
+    public virtual Task<AgentResponse?> CancelRunAsync(string id, AgentCancelRunOptions? options = null, CancellationToken cancellationToken = default)
     {
-        return Task.FromResult<AgentRunResponse?>(null);
+        return Task.FromResult<AgentResponse?>(null);
     }
 
-    public virtual Task<AgentRunResponse?> DeleteRunAsync(string id, AgentDeleteRunOptions? options = null, CancellationToken cancellationToken = default)
+    public virtual Task<AgentResponse?> DeleteRunAsync(string id, AgentDeleteRunOptions? options = null, CancellationToken cancellationToken = default)
     {
-        return Task.FromResult<AgentRunResponse?>(null);
+        return Task.FromResult<AgentResponse?>(null);
     }
 }
 
 // Agent that supports update and cancellation
 public class CustomAgent : AIAgent
 {
-    public override async Task<AgentRunResponse?> CancelRunAsync(string id, AgentCancelRunOptions? options = null, CancellationToken cancellationToken = default)
+    public override async Task<AgentResponse?> CancelRunAsync(string id, AgentCancelRunOptions? options = null, CancellationToken cancellationToken = default)
     {
         var response = await this._client.CancelRunAsync(id, options?.Thread?.ConversationId);
 
-        return ConvertToAgentRunResponse(response); 
+        return ConvertToAgentResponse(response); 
     }
 
     // No overload for DeleteRunAsync as it's not supported by the underlying API
@@ -1195,7 +1195,7 @@ AIAgent agent = new CustomAgent();
 
 AgentThread thread = agent.GetNewThread();
 
-AgentRunResponse response = await agent.RunAsync("What is the capital of France?");
+AgentResponse response = await agent.RunAsync("What is the capital of France?");
 
 response = await agent.CancelRunAsync(response.ResponseId, new AgentCancelRunOptions { Thread = thread });
 ```
@@ -1251,10 +1251,10 @@ public class AgentRunOptions
 AIAgent agent = ...; // Get an instance of an AIAgent
 
 // Start a long-running execution for the prompt if supported by the underlying API
-AgentRunResponse response = await agent.RunAsync("<prompt>", new AgentRunOptions { AllowLongRunningResponses = true });
+AgentResponse response = await agent.RunAsync("<prompt>", new AgentRunOptions { AllowLongRunningResponses = true });
 
 // Start a quick prompt
-AgentRunResponse response = await agent.RunAsync("<prompt>");
+AgentResponse response = await agent.RunAsync("<prompt>");
 ```
 
 **Pros:** 
@@ -1279,7 +1279,7 @@ Below are the details of the option selected for chat clients that is also selec
 #### 3.1 Continuation Token of a Custom Type
 
 This option suggests using `ContinuationToken` to encapsulate all properties representing a long-running operation. The continuation token will be returned by agents in the 
-`ContinuationToken` property of the `AgentRunResponse` and `AgentRunResponseUpdate` responses to indicate that the response is part of a long-running operation. A null value 
+`ContinuationToken` property of the `AgentResponse` and `AgentResponseUpdate` responses to indicate that the response is part of a long-running operation. A null value 
 of the property will indicate that the response is not part of a long-running operation or the long-running operation has been completed. Callers will set the token in the
 `ContinuationToken` property of the `AgentRunOptions` class in follow-up calls to the `Run{Streaming}Async` methods to indicate that they want to "continue" the long-running
 operation identified by the token.
@@ -1313,18 +1313,18 @@ public class AgentRunOptions
     public ResponseContinuationToken? ContinuationToken { get; set; }
 }
 
-public class AgentRunResponse
+public class AgentResponse
 {
     public ResponseContinuationToken? ContinuationToken { get; }
 }
  
-public class AgentRunResponseUpdate
+public class AgentResponseUpdate
 {
     public ResponseContinuationToken? ContinuationToken { get; }
 }
 
 // Usage example
-AgentRunResponse response = await agent.RunAsync("What is the capital of France?");
+AgentResponse response = await agent.RunAsync("What is the capital of France?");
 
 AgentRunOptions options = new() { ContinuationToken = response.ContinuationToken };
 

docs/decisions/0010-ag-ui-support.md

@@ -36,7 +36,7 @@ Chosen option: "Current approach with internal event types and framework-native
 
 - Protects consumers from protocol changes by keeping AG-UI events internal
 - Maintains framework abstractions through conversion at boundaries
-- Uses existing framework types (AgentRunResponseUpdate, ChatMessage) for public API
+- Uses existing framework types (AgentResponseUpdate, ChatMessage) for public API
 - Focuses on core text streaming functionality
 - Leverages existing properties (ConversationId, ResponseId, ErrorContent) instead of custom types
 - Provides bidirectional client and server support
@@ -69,7 +69,7 @@ Chosen option: "Current approach with internal event types and framework-native
 
 3. **Agent Factory Pattern** - `MapAGUIAgent` uses factory function `(messages) => AIAgent` to allow request-specific agent configuration supporting multi-tenancy
 
-4. **Bidirectional Conversion Architecture** - Symmetric conversion logic in shared namespace compiled into both packages for server (`AgentRunResponseUpdate` → AG-UI events) and client (AG-UI events → `AgentRunResponseUpdate`)
+4. **Bidirectional Conversion Architecture** - Symmetric conversion logic in shared namespace compiled into both packages for server (`AgentResponseUpdate` → AG-UI events) and client (AG-UI events → `AgentResponseUpdate`)
 
 5. **Thread Management** - `AGUIAgentThread` stores only `ThreadId` with thread ID communicated via `ConversationId`; applications manage persistence for parity with other implementations and to be compliant with the protocol. Future extensions will support having the server manage the conversation.
 

docs/decisions/0011-create-get-agent-api.md

@@ -0,0 +1,368 @@
+---
+status: proposed
+contact: dmytrostruk
+date: 2025-12-12
+deciders: dmytrostruk, markwallace-microsoft, eavanvalkenburg, giles17
+---
+
+# Create/Get Agent API
+
+## Context and Problem Statement
+
+There is a misalignment between the create/get agent API in the .NET and Python implementations.
+
+In .NET, the `CreateAIAgent` method can create either a local instance of an agent or a remote instance if the backend provider supports it. For remote agents, once the agent is created, you can retrieve an existing remote agent by using the `GetAIAgent` method. If a backend provider doesn't support remote agents, `CreateAIAgent` just initializes a new local agent instance and `GetAIAgent` is not available. There is also a `BuildAIAgent` method, which is an extension for the `ChatClientBuilder` class from `Microsoft.Extensions.AI`. It builds pipelines of `IChatClient` instances with an `IServiceProvider`. This functionality does not exist in Python, so `BuildAIAgent` is out of scope.
+
+In Python, there is only one `create_agent` method, which always creates a local instance of the agent. If the backend provider supports remote agents, the remote agent is created only on the first `agent.run()` invocation.
+
+Below is a short summary of different providers and their APIs in .NET:
+
+| Package | Method | Behavior | Python support |
+|---|---|---|---|
+| Microsoft.Agents.AI | `CreateAIAgent` (based on `IChatClient`) | Creates a local instance of `ChatClientAgent`. | Yes (`create_agent` in `BaseChatClient`). |
+| Microsoft.Agents.AI.Anthropic | `CreateAIAgent` (based on `IBetaService` and `IAnthropicClient`) | Creates a local instance of `ChatClientAgent`. | Yes (`AnthropicClient` inherits `BaseChatClient`, which exposes `create_agent`). |
+| Microsoft.Agents.AI.AzureAI (V2) | `GetAIAgent` (based on `AIProjectClient` with `AgentReference`) | Creates a local instance of `ChatClientAgent`. | Partial (Python uses `create_agent` from `BaseChatClient`). |
+| Microsoft.Agents.AI.AzureAI (V2) | `GetAIAgent`/`GetAIAgentAsync` (with `Name`/`ChatClientAgentOptions`) | Fetches `AgentRecord` via HTTP, then creates a local `ChatClientAgent` instance. | No |
+| Microsoft.Agents.AI.AzureAI (V2) | `CreateAIAgent`/`CreateAIAgentAsync` (based on `AIProjectClient`) | Creates a remote agent first, then wraps it into a local `ChatClientAgent` instance. | No |
+| Microsoft.Agents.AI.AzureAI.Persistent (V1) | `GetAIAgent` (based on `PersistentAgentsClient` with `PersistentAgent`) | Creates a local instance of `ChatClientAgent`. | Partial (Python uses `create_agent` from `BaseChatClient`). |
+| Microsoft.Agents.AI.AzureAI.Persistent (V1) | `GetAIAgent`/`GetAIAgentAsync` (with `AgentId`) | Fetches `PersistentAgent` via HTTP, then creates a local `ChatClientAgent` instance. | No |
+| Microsoft.Agents.AI.AzureAI.Persistent (V1) | `CreateAIAgent`/`CreateAIAgentAsync` | Creates a remote agent first, then wraps it into a local `ChatClientAgent` instance. | No |
+| Microsoft.Agents.AI.OpenAI | `GetAIAgent` (based on `AssistantClient` with `Assistant`) | Creates a local instance of `ChatClientAgent`. | Partial (Python uses `create_agent` from `BaseChatClient`). |
+| Microsoft.Agents.AI.OpenAI | `GetAIAgent`/`GetAIAgentAsync` (with `AgentId`) | Fetches `Assistant` via HTTP, then creates a local `ChatClientAgent` instance. | No |
+| Microsoft.Agents.AI.OpenAI | `CreateAIAgent`/`CreateAIAgentAsync` (based on `AssistantClient`) | Creates a remote agent first, then wraps it into a local `ChatClientAgent` instance. | No |
+| Microsoft.Agents.AI.OpenAI | `CreateAIAgent` (based on `ChatClient`) | Creates a local instance of `ChatClientAgent`. | Yes (`create_agent` in `BaseChatClient`). |
+| Microsoft.Agents.AI.OpenAI | `CreateAIAgent` (based on `OpenAIResponseClient`) | Creates a local instance of `ChatClientAgent`. | Yes (`create_agent` in `BaseChatClient`). |
+
+Another difference between Python and .NET implementation is that in .NET `CreateAIAgent`/`GetAIAgent` methods are implemented as extension methods based on underlying SDK client, like `AIProjectClient` from Azure AI or `AssistantClient` from OpenAI:
+
+```csharp
+// Definition
+public static ChatClientAgent CreateAIAgent(
+    this AIProjectClient aiProjectClient,
+    string name,
+    string model,
+    string instructions,
+    string? description = null,
+    IList<AITool>? tools = null,
+    Func<IChatClient, IChatClient>? clientFactory = null,
+    IServiceProvider? services = null,
+    CancellationToken cancellationToken = default)
+{ }
+
+// Usage
+AIProjectClient aiProjectClient = new(new Uri(endpoint), new AzureCliCredential()); // Initialization of underlying SDK client
+
+var newAgent = await aiProjectClient.CreateAIAgentAsync(name: AgentName, model: deploymentName, instructions: AgentInstructions, tools: [tool]); // ChatClientAgent creation from underlying SDK client
+
+// Alternative usage (same as extension method, just explicit syntax)
+var newAgent = await AzureAIProjectChatClientExtensions.CreateAIAgentAsync(
+    aiProjectClient,
+    name: AgentName,
+    model: deploymentName,
+    instructions: AgentInstructions,
+    tools: [tool]);
+```
+
+Python doesn't support extension methods. Currently `create_agent` method is defined on `BaseChatClient`, but this method only creates a local instance of `ChatAgent` and it can't create remote agents for providers that support it for a couple of reasons:
+
+- It's defined as non-async.
+- `BaseChatClient` implementation is stateful for providers like Azure AI or OpenAI Assistants. The implementation stores agent/assistant metadata like `AgentId` and `AgentName`, so currently it's not possible to create different instances of `ChatAgent` from a single `BaseChatClient` in case if the implementation is stateful.
+
+## Decision Drivers
+
+- API should be aligned between .NET and Python.
+- API should be intuitive and consistent between backend providers in .NET and Python.
+
+## Considered Options
+
+Add missing implementations on the Python side. This should include the following:
+
+### agent-framework-azure-ai (both V1 and V2)
+
+- Add a `get_agent` method that accepts an underlying SDK agent instance and creates a local instance of `ChatAgent`.
+- Add a `get_agent` method that accepts an agent identifier, performs an additional HTTP request to fetch agent data, and then creates a local instance of `ChatAgent`.
+- Override the `create_agent` method from `BaseChatClient` to create a remote agent instance and wrap it into a local `ChatAgent`.
+
+.NET:
+
+```csharp
+var agent1 = new AIProjectClient(...).GetAIAgent(agentInstanceFromSdkType); // Creates a local ChatClientAgent instance from Azure.AI.Projects.OpenAI.AgentReference 
+var agent2 = new AIProjectClient(...).GetAIAgent(agentName); // Fetches agent data, creates a local ChatClientAgent instance
+var agent3 = new AIProjectClient(...).CreateAIAgent(...); // Creates a remote agent, returns a local ChatClientAgent instance
+```
+
+### agent-framework-core (OpenAI Assistants)
+
+- Add a `get_agent` method that accepts an underlying SDK agent instance and creates a local instance of `ChatAgent`.
+- Add a `get_agent` method that accepts an agent name, performs an additional HTTP request to fetch agent data, and then creates a local instance of `ChatAgent`.
+- Override the `create_agent` method from `BaseChatClient` to create a remote agent instance and wrap it into a local `ChatAgent`.
+
+.NET:
+
+```csharp
+var agent1 = new AssistantClient(...).GetAIAgent(agentInstanceFromSdkType); // Creates a local ChatClientAgent instance from OpenAI.Assistants.Assistant
+var agent2 = new AssistantClient(...).GetAIAgent(agentId); // Fetches agent data, creates a local ChatClientAgent instance
+var agent3 = new AssistantClient(...).CreateAIAgent(...); // Creates a remote agent, returns a local ChatClientAgent instance
+```
+
+### Possible Python implementations
+
+Methods like `create_agent` and `get_agent` should be implemented separately or defined on some stateless component that will allow to create multiple agents from the same instance/place.
+
+Possible options:
+
+#### Option 1: Module-level functions
+
+Implement free functions in the provider package that accept the underlying SDK client as the first argument (similar to .NET extension methods, but expressed in Python).
+
+Example:
+
+```python
+from agent_framework.azure import create_agent, get_agent
+
+ai_project_client = AIProjectClient(...)
+
+# Creates a remote agent first, then returns a local ChatAgent wrapper
+created_agent = await create_agent(
+    ai_project_client,
+    name="",
+    instructions="",
+    tools=[tool],
+)
+
+# Gets an existing remote agent and returns a local ChatAgent wrapper
+first_agent = await get_agent(ai_project_client, agent_id=agent_id)
+
+# Wraps an SDK agent instance (no extra HTTP call)
+second_agent = get_agent(ai_project_client, agent_reference)
+```
+
+Pros:
+
+- Naturally supports async `create_agent` / `get_agent`.
+- Supports multiple agents per SDK client.
+- Closest conceptual match to .NET extension methods while staying Pythonic.
+
+Cons:
+
+- Discoverability is lower (users need to know where the functions live).
+- Verbose when creating multiple agents (client must be passed every time):
+
+  ```python
+  agent1 = await azure_agents.create_agent(client, name="Agent1", ...)
+  agent2 = await azure_agents.create_agent(client, name="Agent2", ...)
+  ```
+
+#### Option 2: Provider object
+
+Introduce a dedicated provider type that is constructed from the underlying SDK client, and exposes async `create_agent` / `get_agent` methods.
+
+Example:
+
+```python
+from agent_framework.azure import AzureAIAgentProvider
+
+ai_project_client = AIProjectClient(...)
+provider = AzureAIAgentProvider(ai_project_client)
+
+agent = await provider.create_agent(
+    name="",
+    instructions="",
+    tools=[tool],
+)
+
+agent = await provider.get_agent(agent_id=agent_id)
+agent = provider.get_agent(agent_reference=agent_reference)
+```
+
+Pros:
+
+- High discoverability and clear grouping of related behavior.
+- Keeps SDK clients unchanged and supports multiple agents per SDK client.
+- Concise when creating multiple agents (client passed once):
+
+  ```python
+  provider = AzureAIAgentProvider(ai_project_client)
+  agent1 = await provider.create_agent(name="Agent1", ...)
+  agent2 = await provider.create_agent(name="Agent2", ...)
+  ```
+
+Cons:
+
+- Adds a new public concept/type for users to learn.
+
+#### Option 3: Inheritance (SDK client subclass)
+
+Create a subclass of the underlying SDK client and add `create_agent` / `get_agent` methods.
+
+Example:
+
+```python
+class ExtendedAIProjectClient(AIProjectClient):
+    async def create_agent(self, *, name: str, model: str, instructions: str, **kwargs) -> ChatAgent:
+        ...
+
+    async def get_agent(self, *, agent_id: str | None = None, sdk_agent=None, **kwargs) -> ChatAgent:
+        ...
+
+client = ExtendedAIProjectClient(...)
+agent = await client.create_agent(name="", instructions="")
+```
+
+Pros:
+
+- Discoverable and ergonomic call sites.
+- Mirrors the .NET “methods on the client” feeling.
+
+Cons:
+
+- Many SDK clients are not designed for inheritance; SDK upgrades can break subclasses.
+- Users must opt into subclass everywhere.
+- Typing/initialization can be tricky if the SDK client has non-trivial constructors.
+
+#### Option 4: Monkey patching
+
+Attach `create_agent` / `get_agent` methods to an SDK client class (or instance) at runtime.
+
+Example:
+
+```python
+def _create_agent(self, *, name: str, model: str, instructions: str, **kwargs) -> ChatAgent:
+    ...
+
+AIProjectClient.create_agent = _create_agent  # monkey patch
+```
+
+Pros:
+
+- Produces “extension method-like” call sites without wrappers or subclasses.
+
+Cons:
+
+- Fragile across SDK updates and difficult to type-check.
+- Surprising behavior (global side effects), potential conflicts across packages.
+- Harder to support/debug, especially in larger apps and test suites.
+
+## Decision Outcome
+
+Implement `create_agent`/`get_agent`/`as_agent` API via **Option 2: Provider object**.
+
+### Rationale
+
+| Aspect | Option 1 (Functions) | Option 2 (Provider) |
+|--------|----------------------|---------------------|
+| Multiple implementations | One package may contain V1, V2, and other agent types. Function names like `create_agent` become ambiguous - which agent type does it create? | Each provider class is explicit: `AzureAIAgentsProvider` vs `AzureAIProjectAgentProvider` |
+| Discoverability | Users must know to import specific functions from the package | IDE autocomplete on provider instance shows all available methods |
+| Client reuse | SDK client must be passed to every function call: `create_agent(client, ...)`, `get_agent(client, ...)` | SDK client passed once at construction: `provider = Provider(client)` |
+
+**Option 1 example:**
+```python
+from agent_framework.azure import create_agent, get_agent
+agent1 = await create_agent(client, name="Agent1", ...)  # Which agent type, V1 or V2?
+agent2 = await create_agent(client, name="Agent2", ...)  # Repetitive client passing
+```
+
+**Option 2 example:**
+```python
+from agent_framework.azure import AzureAIProjectAgentProvider
+provider = AzureAIProjectAgentProvider(client)  # Clear which service, client passed once
+agent1 = await provider.create_agent(name="Agent1", ...)
+agent2 = await provider.create_agent(name="Agent2", ...)
+```
+
+### Method Naming
+
+| Operation | Python | .NET | Async |
+|-----------|--------|------|-------|
+| Create on service | `create_agent()` | `CreateAIAgent()` | Yes |
+| Get from service | `get_agent(id=...)` | `GetAIAgent(agentId)` | Yes |
+| Wrap SDK object | `as_agent(reference)` | `AsAIAgent(agentInstance)` | No |
+
+The method names (`create_agent`, `get_agent`) do not explicitly mention "service" or "remote" because:
+- In Python, the provider class name explicitly identifies the service (`AzureAIAgentsProvider`, `OpenAIAssistantProvider`), making additional qualifiers in method names redundant.
+- In .NET, these are extension methods on `AIProjectClient` or `AssistantClient`, which already imply service operations.
+
+### Provider Class Naming
+
+| Package | Provider Class | SDK Client | Service |
+|---------|---------------|------------|---------|
+| `agent_framework.azure` | `AzureAIProjectAgentProvider` | `AIProjectClient` | Azure AI Agent Service, based on Responses API (V2) |
+| `agent_framework.azure` | `AzureAIAgentsProvider` | `AgentsClient` | Azure AI Agent Service (V1) |
+| `agent_framework.openai` | `OpenAIAssistantProvider` | `AsyncOpenAI` | OpenAI Assistants API |
+
+> **Note:** Azure AI naming is temporary. Final naming will be updated according to Azure AI / Microsoft Foundry renaming decisions.
+
+### Usage Examples
+
+#### Azure AI Agent Service V2 (based on Responses API)
+
+```python
+from agent_framework.azure import AzureAIProjectAgentProvider
+from azure.ai.projects import AIProjectClient
+
+client = AIProjectClient(endpoint, credential)
+provider = AzureAIProjectAgentProvider(client)
+
+# Create new agent on service
+agent = await provider.create_agent(name="MyAgent", model="gpt-4", instructions="...")
+
+# Get existing agent by name
+agent = await provider.get_agent(agent_name="MyAgent")
+
+# Wrap already-fetched SDK object (no HTTP calls)
+agent_ref = await client.agents.get("MyAgent")
+agent = provider.as_agent(agent_ref)
+```
+
+#### Azure AI Persistent Agents V1
+
+```python
+from agent_framework.azure import AzureAIAgentsProvider
+from azure.ai.agents import AgentsClient
+
+client = AgentsClient(endpoint, credential)
+provider = AzureAIAgentsProvider(client)
+
+agent = await provider.create_agent(name="MyAgent", model="gpt-4", instructions="...")
+agent = await provider.get_agent(agent_id="persistent-agent-456")
+agent = provider.as_agent(persistent_agent)
+```
+
+#### OpenAI Assistants
+
+```python
+from agent_framework.openai import OpenAIAssistantProvider
+from openai import OpenAI
+
+client = OpenAI()
+provider = OpenAIAssistantProvider(client)
+
+agent = await provider.create_agent(name="MyAssistant", model="gpt-4", instructions="...")
+agent = await provider.get_agent(assistant_id="asst_123")
+agent = provider.as_agent(assistant)
+```
+
+#### Local-Only Agents (No Provider)
+
+Current method `create_agent` (python) / `CreateAIAgent` (.NET) can be renamed to `as_agent` (python) / `AsAIAgent` (.NET) to emphasize the conversion logic rather than creation/initialization logic and to avoid collision with `create_agent` method for remote calls.
+
+```python
+from agent_framework import ChatAgent
+from agent_framework.openai import OpenAIChatClient
+
+# Convert chat client to ChatAgent (no remote service involved)
+client = OpenAIChatClient(model="gpt-4")
+agent = client.as_agent(name="LocalAgent", instructions="...") # instead of create_agent
+```
+
+### Adding New Agent Types
+
+Python:
+
+1. Create provider class in appropriate package.
+2. Implement `create_agent`, `get_agent`, `as_agent` as applicable.
+
+.NET:
+
+1. Create static class for extension methods.
+2. Implement `CreateAIAgentAsync`, `GetAIAgentAsync`, `AsAIAgent` as applicable.

docs/decisions/0012-python-typeddict-options.md

@@ -0,0 +1,129 @@
+---
+# These are optional elements. Feel free to remove any of them.
+status: proposed
+contact: eavanvalkenburg
+date: 2026-01-08
+deciders: eavanvalkenburg, markwallace-microsoft,  sphenry, alliscode, johanst, brettcannon
+consulted: taochenosu, moonbox3, dmytrostruk, giles17
+---
+
+# Leveraging TypedDict and Generic Options in Python Chat Clients
+
+## Context and Problem Statement
+
+The Agent Framework Python SDK provides multiple chat client implementations for different providers (OpenAI, Anthropic, Azure AI, Bedrock, Ollama, etc.). Each provider has unique configuration options beyond the common parameters defined in `ChatOptions`. Currently, developers using these clients lack type safety and IDE autocompletion for provider-specific options, leading to runtime errors and a poor developer experience.
+
+How can we provide type-safe, discoverable options for each chat client while maintaining a consistent API across all implementations?
+
+## Decision Drivers
+
+- **Type Safety**: Developers should get compile-time/static analysis errors when using invalid options
+- **IDE Support**: Full autocompletion and inline documentation for all available options
+- **Extensibility**: Users should be able to define custom options that extend provider-specific options
+- **Consistency**: All chat clients should follow the same pattern for options handling
+- **Provider Flexibility**: Each provider can expose its unique options without affecting the common interface
+
+## Considered Options
+
+- **Option 1: Status Quo - Class `ChatOptions` with `**kwargs`**
+- **Option 2: TypedDict with Generic Type Parameters**
+
+### Option 1: Status Quo - Class `ChatOptions` with `**kwargs`
+
+The current approach uses a base `ChatOptions` Class with common parameters, and provider-specific options are passed via `**kwargs` or loosely typed dictionaries.
+
+```python
+# Current usage - no type safety for provider-specific options
+response = await client.get_response(
+    messages=messages,
+    temperature=0.7,
+    top_k=40,
+    random=42, # No validation
+)
+```
+
+**Pros:**
+- Simple implementation
+- Maximum flexibility
+
+**Cons:**
+- No type checking for provider-specific options
+- No IDE autocompletion for available options
+- Runtime errors for typos or invalid options
+- Documentation must be consulted for each provider
+
+### Option 2: TypedDict with Generic Type Parameters (Chosen)
+
+Each chat client is parameterized with a TypeVar bound to a provider-specific `TypedDict` that extends `ChatOptions`. This enables full type safety and IDE support.
+
+```python
+# Provider-specific TypedDict
+class AnthropicChatOptions(ChatOptions, total=False):
+    """Anthropic-specific chat options."""
+    top_k: int
+    thinking: ThinkingConfig
+    # ... other Anthropic-specific options
+
+# Generic chat client
+class AnthropicChatClient(ChatClientBase[TAnthropicChatOptions]):
+    ...
+
+client = AnthropicChatClient(...)
+
+# Usage with full type safety
+response = await client.get_response(
+    messages=messages,
+    options={
+        "temperature": 0.7,
+        "top_k": 40,
+        "random": 42,  # fails type checking and IDE would flag this
+    }
+)
+
+# Users can extend for custom options
+class MyAnthropicOptions(AnthropicChatOptions, total=False):
+    custom_field: str
+
+
+client = AnthropicChatClient[MyAnthropicOptions](...)
+
+# Usage of custom options with full type safety
+response = await client.get_response(
+    messages=messages,
+    options={
+        "temperature": 0.7,
+        "top_k": 40,
+        "custom_field": "value",
+    }
+)
+
+```
+
+**Pros:**
+- Full type safety with static analysis
+- IDE autocompletion for all options
+- Compile-time error detection
+- Self-documenting through type hints
+- Users can extend options for their specific needs or advances in models
+
+**Cons:**
+- More complex implementation
+- Some type: ignore comments needed for TypedDict field overrides
+- Minor: Requires TypeVar with default (Python 3.13+ or typing_extensions)
+
+> [NOTE!]
+> In .NET this is already achieved through overloads on the `GetResponseAsync` method for each provider-specific options class, e.g., `AnthropicChatOptions`, `OpenAIChatOptions`, etc. So this does not apply to .NET.
+
+### Implementation Details
+
+1. **Base Protocol**: `ChatClientProtocol[TOptions]` is generic over options type, with default set to `ChatOptions` (the new TypedDict)
+2. **Provider TypedDicts**: Each provider defines its options extending `ChatOptions`
+    They can even override fields with type=None to indicate they are not supported.
+3. **TypeVar Pattern**: `TProviderOptions = TypeVar("TProviderOptions", bound=TypedDict, default=ProviderChatOptions, contravariant=True)`
+4. **Option Translation**: Common options are kept in place,and explicitly documented in the Options class how they are used. (e.g., `user` → `metadata.user_id`) in `_prepare_options` (for Anthropic) to preserve easy use of common options.
+
+## Decision Outcome
+
+Chosen option: **"Option 2: TypedDict with Generic Type Parameters"**, because it provides full type safety, excellent IDE support with autocompletion, and allows users to extend provider-specific options for their use cases. Extended this Generic to ChatAgents in order to also properly type the options used in agent construction and run methods.
+
+See [typed_options.py](../../python/samples/getting_started/chat_client/typed_options.py) for a complete example demonstrating the usage of typed options with custom extensions.

docs/decisions/0013-python-get-response-simplification.md

@@ -0,0 +1,258 @@
+---
+status: Accepted
+contact: eavanvalkenburg
+date: 2026-01-06
+deciders: markwallace-microsoft, dmytrostruk, taochenosu, alliscode, moonbox3, sphenry
+consulted: sergeymenshykh, rbarreto, dmytrostruk, westey-m
+informed:
+---
+
+# Simplify Python Get Response API into a single method
+
+## Context and Problem Statement
+
+Currently chat clients must implement two separate methods to get responses, one for streaming and one for non-streaming. This adds complexity to the client implementations and increases the maintenance burden. This was likely done because the .NET version cannot do proper typing with a single method, in Python this is possible and this for instance is also how the OpenAI python client works, this would then also make it simpler to work with the Python version because there is only one method to learn about instead of two.
+
+## Implications of this change
+
+### Current Architecture Overview
+
+The current design has **two separate methods** at each layer:
+
+| Layer | Non-streaming | Streaming |
+|-------|---------------|-----------|
+| **Protocol** | `get_response()` → `ChatResponse` | `get_streaming_response()` → `AsyncIterable[ChatResponseUpdate]` |
+| **BaseChatClient** | `get_response()` (public) | `get_streaming_response()` (public) |
+| **Implementation** | `_inner_get_response()` (private) | `_inner_get_streaming_response()` (private) |
+
+### Key Usage Areas Identified
+
+#### 1. **ChatAgent** (_agents.py)
+- `run()` → calls `self.chat_client.get_response()`
+- `run_stream()` → calls `self.chat_client.get_streaming_response()`
+
+These are parallel methods on the agent, so consolidating the client methods would **not break** the agent API. You could keep `agent.run()` and `agent.run_stream()` unchanged while internally calling `get_response(stream=True/False)`.
+
+#### 2. **Function Invocation Decorator** (_tools.py)
+This is **the most impacted area**. Currently:
+- `_handle_function_calls_response()` decorates `get_response`
+- `_handle_function_calls_streaming_response()` decorates `get_streaming_response`
+- The `use_function_invocation` class decorator wraps **both methods separately**
+
+**Impact**: The decorator logic is almost identical (~200 lines each) with small differences:
+- Non-streaming collects response, returns it
+- Streaming yields updates, returns async iterable
+
+With a unified method, you'd need **one decorator** that:
+- Checks the `stream` parameter
+- Uses `@overload` to determine return type
+- Handles both paths with conditional logic
+- The new decorator could be applied just on the method, instead of the whole class.
+
+This would **reduce code duplication** but add complexity to a single function.
+
+#### 3. **Observability/Instrumentation** (observability.py)
+Same pattern as function invocation:
+- `_trace_get_response()` wraps `get_response`
+- `_trace_get_streaming_response()` wraps `get_streaming_response`
+- `use_instrumentation` decorator applies both
+
+**Impact**: Would need consolidation into a single tracing wrapper.
+
+#### 4. **Chat Middleware** (_middleware.py)
+The `use_chat_middleware` decorator also wraps both methods separately with similar logic.
+
+#### 5. **AG-UI Client** (_client.py)
+Wraps both methods to unwrap server function calls:
+```python
+original_get_streaming_response = chat_client.get_streaming_response
+original_get_response = chat_client.get_response
+```
+
+#### 6. **Provider Implementations** (all subpackages)
+All subclasses implement both `_inner_*` methods, except:
+- OpenAI Assistants Client (and similar clients, such as Foundry Agents V1) - it implements `_inner_get_response` by calling `_inner_get_streaming_response`
+
+### Implications of Consolidation
+
+| Aspect | Impact |
+|--------|--------|
+| **Type Safety** | Overloads work well: `@overload` with `Literal[True]` → `AsyncIterable`, `Literal[False]` → `ChatResponse`. Runtime return type based on `stream` param. |
+| **Breaking Change** | **Major breaking change** for anyone implementing custom chat clients. They'd need to update from 2 methods to 1 (or 2 inner methods to 1). |
+| **Decorator Complexity** | All 3 decorator systems (function invocation, middleware, observability) would need refactoring to handle both paths in one wrapper. |
+| **Code Reduction** | Significant reduction in _tools.py (~200 lines of near-duplicate code) and other decorators. |
+| **Samples/Tests** | Many samples call `get_streaming_response()` directly - would need updates. |
+| **Protocol Simplification** | `ChatClientProtocol` goes from 2 methods + 1 property to 1 method + 1 property. |
+
+### Recommendation
+
+The consolidation makes sense architecturally, but consider:
+
+1. **The overload pattern with `stream: bool`** works well in Python typing:
+   ```python
+   @overload
+   async def get_response(self, messages, *, stream: Literal[True] = True, ...) -> AsyncIterable[ChatResponseUpdate]: ...
+   @overload
+   async def get_response(self, messages, *, stream: Literal[False] = False, ...) -> ChatResponse: ...
+   ```
+
+2. **The decorator complexity** is the biggest concern. The current approach of separate decorators for separate methods is cleaner than conditional logic inside one wrapper.
+
+## Decision Drivers
+
+- Reduce code needed to implement a Chat Client, simplify the public API for chat clients
+- Reduce code duplication in decorators and middleware
+- Maintain type safety and clarity in method signatures
+
+## Considered Options
+
+1. Status quo: Keep separate methods for streaming and non-streaming
+2. Consolidate into a single `get_response` method with a `stream` parameter
+3. Option 2 plus merging `agent.run` and `agent.run_stream` into a single method with a `stream` parameter as well
+
+## Option 1: Status Quo
+- Good: Clear separation of streaming vs non-streaming logic
+- Good: Aligned with .NET design, although it is already `run` for Python and `RunAsync` for .NET
+- Bad: Code duplication in decorators and middleware
+- Bad: More complex client implementations
+
+## Option 2: Consolidate into Single Method
+- Good: Simplified public API for chat clients
+- Good: Reduced code duplication in decorators
+- Good: Smaller API footprint for users to get familiar with
+- Good: People using OpenAI directly already expect this pattern
+- Bad: Increased complexity in decorators and middleware
+- Bad: Less alignment with .NET design (`get_response(stream=True)` vs `GetStreamingResponseAsync`)
+
+## Option 3: Consolidate + Merge Agent and Workflow Methods
+- Good: Further simplifies agent and workflow implementation
+- Good: Single method for all chat interactions
+- Good: Smaller API footprint for users to get familiar with
+- Good: People using OpenAI directly already expect this pattern
+- Good: Workflows internally already use a single method (_run_workflow_with_tracing), so would eliminate public API duplication as well, with hardly any code changes
+- Bad: More breaking changes for agent users
+- Bad: Increased complexity in agent implementation
+- Bad: More extensive misalignment with .NET design (`run(stream=True)` vs `RunStreamingAsync` in addition to `get_response` change)
+
+## Misc
+
+Smaller questions to consider:
+- Should default be `stream=False` or `stream=True`? (Current is False)
+    - Default to `False` makes it simpler for new users, as non-streaming is easier to handle.
+    - Default to `False` aligns with existing behavior.
+    - Streaming tends to be faster, so defaulting to `True` could improve performance for common use cases.
+    - Should this differ between ChatClient, Agent and Workflows? (e.g., Agent and Workflow defaults to streaming, ChatClient to non-streaming)
+
+## Decision Outcome
+
+Chosen Option: **Option 3: Consolidate + Merge Agent and Workflow Methods**
+
+Since this is the most pythonic option and it reduces the API surface and code duplication the most, we will go with this option.
+We will keep the default of `stream=False` for all methods to maintain backward compatibility and simplicity for new users.
+
+# Appendix
+## Code Samples for Consolidated Method
+
+### Python - Option 3: Direct ChatClient + Agent with Single Method
+
+```python
+# Copyright (c) Microsoft. All rights reserved.
+
+import asyncio
+from random import randint
+from typing import Annotated
+
+from agent_framework import ChatAgent
+from agent_framework.openai import OpenAIChatClient
+from pydantic import Field
+
+
+def get_weather(
+    location: Annotated[str, Field(description="The location to get the weather for.")],
+) -> str:
+    """Get the weather for a given location."""
+    conditions = ["sunny", "cloudy", "rainy", "stormy"]
+    return f"The weather in {location} is {conditions[randint(0, 3)]} with a high of {randint(10, 30)}°C."
+
+
+async def main() -> None:
+    # Example 1: Direct ChatClient usage with single method
+    client = OpenAIChatClient()
+    message = "What's the weather in Amsterdam and in Paris?"
+
+    # Non-streaming usage
+    print(f"User: {message}")
+    response = await client.get_response(message, tools=get_weather)
+    print(f"Assistant: {response.text}")
+
+    # Streaming usage - same method, different parameter
+    print(f"\nUser: {message}")
+    print("Assistant: ", end="")
+    async for chunk in client.get_response(message, tools=get_weather, stream=True):
+        if chunk.text:
+            print(chunk.text, end="")
+    print("")
+
+    # Example 2: Agent usage with single method
+    agent = ChatAgent(
+        chat_client=client,
+        tools=get_weather,
+        name="WeatherAgent",
+        instructions="You are a weather assistant.",
+    )
+    thread = agent.get_new_thread()
+
+    # Non-streaming agent
+    print(f"\nUser: {message}")
+    result = await agent.run(message, thread=thread) # default would be stream=False
+    print(f"{agent.name}: {result.text}")
+
+    # Streaming agent - same method, different parameter
+    print(f"\nUser: {message}")
+    print(f"{agent.name}: ", end="")
+    async for update in agent.run(message, thread=thread, stream=True):
+        if update.text:
+            print(update.text, end="")
+    print("")
+
+
+if __name__ == "__main__":
+    asyncio.run(main())
+```
+
+### .NET - Current pattern for comparison
+
+```csharp
+// Copyright (c) Microsoft. All rights reserved.
+
+using Azure.AI.OpenAI;
+using Azure.Identity;
+using Microsoft.Agents.AI;
+using OpenAI.Chat;
+
+var endpoint = Environment.GetEnvironmentVariable("AZURE_OPENAI_ENDPOINT")
+    ?? throw new InvalidOperationException("AZURE_OPENAI_ENDPOINT is not set.");
+var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT_NAME") ?? "gpt-4o-mini";
+
+AIAgent agent = new AzureOpenAIClient(
+    new Uri(endpoint),
+    new AzureCliCredential())
+    .GetChatClient(deploymentName)
+    .CreateAIAgent(
+        instructions: "You are good at telling jokes about pirates.",
+        name: "PirateJoker");
+
+// Non-streaming: Returns a string directly
+Console.WriteLine("=== Non-streaming ===");
+string result = await agent.RunAsync("Tell me a joke about a pirate.");
+Console.WriteLine(result);
+
+// Streaming: Returns IAsyncEnumerable<AgentUpdate>
+Console.WriteLine("\n=== Streaming ===");
+await foreach (AgentUpdate update in agent.RunStreamingAsync("Tell me a joke about a pirate."))
+{
+    Console.Write(update);
+}
+Console.WriteLine();
+
+```

docs/decisions/0014-feature-collections.md

@@ -0,0 +1,423 @@
+---
+status: accepted
+contact: westey-m
+date: 2025-01-21
+deciders: sergeymenshykh, markwallace, rbarreto, westey-m, stephentoub
+consulted: reubenbond
+informed:
+---
+
+# Feature Collections
+
+## Context and Problem Statement
+
+When using agents, we often have cases where we want to pass some arbitrary services or data to an agent or some component in the agent execution stack.
+These services or data are not necessarily known at compile time and can vary by the agent stack that the user has built.
+E.g., there may be an agent decorator or chat client decorator that was added to the stack by the user, and an arbitrary payload needs to be passed to that decorator.
+
+Since these payloads are related to components that are not integral parts of the agent framework, they cannot be added as strongly typed settings to the agent run options.
+However, the payloads could be added to the agent run options as loosely typed 'features', that can be retrieved as needed.
+
+In some cases certain classes of agents may support the same capability, but not all agents do.
+Having the configuration for such a capability on the main abstraction would advertise the functionality to all users, even if their chosen agent does not support it.
+The user may type test for certain agent types, and call overloads on the appropriate agent types, with the strongly typed configuration.
+Having a feature collection though, would be an alternative way of passing such configuration, without needing to type check the agent type.
+All agents that support the functionality would be able to check for the configuration and use it, simplifying the user code.
+If the agent does not support the capability, that configuration would be ignored.
+
+### Sample Scenario 1 - Per Run ChatMessageStore Override for hosting Libraries
+
+We are building an agent hosting library, that can host any agent built using the agent framework.
+Where an agent is not built on a service that uses in-service chat history storage, the hosting library wants to force the agent to use
+the hosting library's chat history storage implementation.
+This chat history storage implementation may be specifically tailored to the type of protocol that the hosting library uses, e.g. conversation id based storage or response id based storage.
+The hosting library does not know what type of agent it is hosting, so it cannot provide a strongly typed parameter on the agent.
+Instead, it adds the chat history storage implementation to a feature collection, and if the agent supports custom chat history storage, it retrieves the implementation from the feature collection and uses it.
+
+```csharp
+// Pseudo-code for an agent hosting library that supports conversation id based hosting.
+public async Task<string> HandleConversationsBasedRequestAsync(AIAgent agent, string conversationId, string userInput)
+{
+    var thread = await this._threadStore.GetOrCreateThread(conversationId);
+
+    // The hosting library can set a per-run chat message store via Features that only applies for that run.
+    // This message store will load and save messages under the conversation id provided.
+    ConversationsChatMessageStore messageStore = new(this._dbClient, conversationId);
+    var response = await agent.RunAsync(
+        userInput,
+        thread,
+        options: new AgentRunOptions()
+        {
+            Features = new AgentFeatureCollection().WithFeature<ChatMessageStore>(messageStore)
+        });
+
+    await this._threadStore.SaveThreadAsync(conversationId, thread);
+    return response.Text;
+}
+
+// Pseudo-code for an agent hosting library that supports response id based hosting.
+public async Task<(string responseMessage, string responseId)> HandleResponseIdBasedRequestAsync(AIAgent agent, string previousResponseId, string userInput)
+{
+    var thread = await this._threadStore.GetOrCreateThreadAsync(previousResponseId);
+
+    // The hosting library can set a per-run chat message store via Features that only applies for that run.
+    // This message store will buffer newly added messages until explicitly saved after the run.
+    ResponsesChatMessageStore messageStore = new(this._dbClient, previousResponseId);
+
+    var response = await agent.RunAsync(
+        userInput,
+        thread,
+        options: new AgentRunOptions()
+        {
+            Features = new AgentFeatureCollection().WithFeature<ChatMessageStore>(messageStore)
+        });
+
+    // Since the message store may not actually have been used at all (if the agent's underlying chat client requires service-based chat history storage),
+    // we may not have anything to save back to the database.
+    // We still want to generate a new response id though, so that we can save the updated thread state under that id.
+    // We should also use the same id to save any buffered messages in the message store if there are any.
+    var newResponseId = this.GenerateResponseId();
+    if (messageStore.HasBufferedMessages)
+    {
+        await messageStore.SaveBufferedMessagesAsync(newResponseId);
+    }
+    
+    // Save the updated thread state under the new response id that was generated by the store.
+    await this._threadStore.SaveThreadAsync(newResponseId, thread);
+    return (response.Text, newResponseId);
+}
+```
+
+### Sample Scenario 2 - Structured output
+
+Currently our base abstraction does not support structured output, since the capability is not supported by all agents.
+For those agents that don't support structured output, we could add an agent decorator that takes the response from the underlying agent, and applies structured output parsing on top of it via an additional LLM call.
+
+If we add structured output configuration as a feature, then any agent that supports structured output could retrieve the configuration from the feature collection and apply it, and where it is not supported, the configuration would simply be ignored.
+
+We could add a simple StructuredOutputAgentFeature that can be added to the list of features and also be used to return the generated structured output.
+
+```csharp
+internal class StructuredOutputAgentFeature
+{
+    public Type? OutputType { get; set; }
+
+    public JsonSerializerOptions? SerializerOptions { get; set; }
+
+    public bool? UseJsonSchemaResponseFormat { get; set; }
+
+    // Contains the result of the structured output parsing request.
+    public ChatResponse? ChatResponse { get; set; }
+}
+```
+
+We can add a simple decorator class that does the chat client invocation.
+
+```csharp
+public class StructuredOutputAgent : DelegatingAIAgent
+{
+    private readonly IChatClient _chatClient;
+    public StructuredOutputAgent(AIAgent innerAgent, IChatClient chatClient)
+        : base(innerAgent)
+    {
+        this._chatClient = Throw.IfNull(chatClient);
+    }
+
+    public override async Task<AgentRunResponse> RunAsync(
+        IEnumerable<ChatMessage> messages,
+        AgentThread? thread = null,
+        AgentRunOptions? options = null,
+        CancellationToken cancellationToken = default)
+    {
+        // Run the inner agent first, to get back the text response we want to convert.
+        var response = await base.RunAsync(messages, thread, options, cancellationToken).ConfigureAwait(false);
+
+        if (options?.Features?.TryGet<StructuredOutputAgentFeature>(out var responseFormatFeature) is true
+            && responseFormatFeature.OutputType is not null)
+        {
+            // Create the chat options to request structured output.
+            ChatOptions chatOptions = new()
+            {
+                ResponseFormat = ChatResponseFormat.ForJsonSchema(responseFormatFeature.OutputType, responseFormatFeature.SerializerOptions)
+            };
+
+            // Invoke the chat client to transform the text output into structured data.
+            // The feature is updated with the result.
+            // The code can be simplified by adding a non-generic structured output GetResponseAsync
+            // overload that takes Type as input.
+            responseFormatFeature.ChatResponse = await this._chatClient.GetResponseAsync(
+                messages: new[]
+                {
+                    new ChatMessage(ChatRole.System, "You are a json expert and when provided with any text, will convert it to the requested json format."),
+                    new ChatMessage(ChatRole.User, response.Text)
+                },
+                options: chatOptions,
+                cancellationToken: cancellationToken).ConfigureAwait(false);
+        }
+
+        return response;
+    }
+}
+```
+
+Finally, we can add an extension method on `AIAgent` that can add the feature to the run options and check the feature for the structured output result and add the deserialized result to the response.
+
+```csharp
+public static async Task<AgentRunResponse<T>> RunAsync<T>(
+    this AIAgent agent,
+    IEnumerable<ChatMessage> messages,
+    AgentThread? thread = null,
+    JsonSerializerOptions? serializerOptions = null,
+    AgentRunOptions? options = null,
+    bool? useJsonSchemaResponseFormat = null,
+    CancellationToken cancellationToken = default)
+{
+    // Create the structured output feature.
+    var structuredOutputFeature = new StructuredOutputAgentFeature();
+    structuredOutputFeature.OutputType = typeof(T);
+    structuredOutputFeature.UseJsonSchemaResponseFormat = useJsonSchemaResponseFormat;
+
+    // Run the agent.
+    options ??= new AgentRunOptions();
+    options.Features ??= new AgentFeatureCollection();
+    options.Features.Set(structuredOutputFeature);
+
+    var response = await agent.RunAsync(messages, thread, options, cancellationToken).ConfigureAwait(false);
+
+    // Deserialize the JSON output.
+    if (structuredOutputFeature.ChatResponse is not null)
+    {
+        var typed = new ChatResponse<T>(structuredOutputFeature.ChatResponse, serializerOptions ?? AgentJsonUtilities.DefaultOptions);
+        return new AgentRunResponse<T>(response, typed.Result);
+    }
+
+    throw new InvalidOperationException("No structured output response was generated by the agent.");
+}
+```
+
+We can then use the extension method with any agent that supports structured output or that has
+been decorated with the `StructuredOutputAgent` decorator.
+
+```csharp
+agent = new StructuredOutputAgent(agent, chatClient);
+
+AgentRunResponse<PersonInfo> response = await agent.RunAsync<PersonInfo>([new ChatMessage(
+    ChatRole.User,
+    "Please provide information about John Smith, who is a 35-year-old software engineer.")]);
+```
+
+## Implementation Options
+
+Three options were considered for implementing feature collections:
+
+- **Option 1**: FeatureCollections similar to ASP.NET Core
+- **Option 2**: AdditionalProperties Dictionary
+- **Option 3**: IServiceProvider
+
+Here are some comparisons about their suitability for our use case:
+
+| Criteria         | Feature Collection | Additional Properties | IServiceProvider |
+|------------------|--------------------|-----------------------|------------------|
+|Ease of use       |✅ Good             |❌ Bad                |✅ Good           |
+|User familiarity  |❌ Bad              |✅ Good               |✅ Good           |
+|Type safety       |✅ Good             |❌ Bad                |✅ Good           |
+|Ability to modify registered options when progressing down the stack|✅ Supported|✅ Supported|❌ Not-Supported (IServiceProvider is read-only)|
+|Already available in MEAI stack|❌ No|✅ Yes|❌ No|
+|Ambiguity with existing AdditionalProperties|❌ Yes|✅ No|❌ Yes|
+
+## IServiceProvider
+
+Service Collections and Service Providers provide a very popular way to register and retrieve services by type and could be used as a way to pass features to agents and chat clients.
+
+However, since IServiceProvider is read-only, it is not possible to modify the registered services when progressing down the execution stack.
+E.g. an agent decorator cannot add additional services to the IServiceProvider passed to it when calling into the inner agent.
+
+IServiceProvider also does not expose a way to list all services contained in it, making it difficult to copy services from one provider to another.
+
+This lack of mutability makes IServiceProvider unsuitable for our use case, since we will not be able to use it to build sample scenario 2.
+
+## AdditionalProperties dictionary
+
+The AdditionalProperties dictionary is already available on various options classes in the agent framework as well as in the MEAI stack and
+allows storing arbitrary key/value pairs, where the key is a string and the value is an object.
+
+While FeatureCollection uses Type as a key, AdditionalProperties uses string keys.
+This means that users need to agree on string keys to use for specific features, however it is also possible to use Type.FullName as a key by convention
+to avoid key collisions, which is an easy convention to follow.
+
+Since the value of AdditionalProperties is of type object, users need to cast the value to the expected type when retrieving it, which is also
+a drawback, but when using the convention of using Type.FullName as a key, there is at least a clear expectation of what type to cast to.
+
+```csharp
+// Setting a feature
+options.AdditionalProperties[typeof(MyFeature).FullName] = new MyFeature();
+
+// Retrieving a feature
+if (options.AdditionalProperties.TryGetValue(typeof(MyFeature).FullName, out var featureObj)
+    && featureObj is MyFeature myFeature)
+{
+    // Use myFeature
+}
+```
+
+It would also be possible to add extension methods to simplify setting and getting features from AdditionalProperties.
+Having a base class for features should help make this more feature rich.
+
+```csharp
+// Setting a feature, this can use Type.FullName as the key.
+options.AdditionalProperties
+    .WithFeature(new MyFeature());
+
+// Retrieving a feature, this can use Type.FullName as the key.
+if (options.AdditionalProperties.TryGetFeature<MyFeature>(out var myFeature))
+{
+    // Use myFeature
+}
+```
+
+It would also be possible to add extension methods for a feature to simplify setting and getting features from AdditionalProperties.
+
+```csharp
+// Setting a feature
+options.AdditionalProperties
+    .WithMyFeature(new MyFeature());
+// Retrieving a feature
+if (options.AdditionalProperties.TryGetMyFeature(out var myFeature))
+{
+    // Use myFeature
+}
+```
+
+## Feature Collection
+
+If we choose the feature collection option, we need to decide on the design of the feature collection itself.
+
+### Feature Collections extension points
+
+We need to decide the set of actions that feature collections would be supported for. Here is the suggested list of actions:
+
+**MAAI.AIAgent:**
+
+1. GetNewThread
+    1. E.g. this would allow passing an already existing storage id for the thread to use, or an initialized custom chat message store to use.
+1. DeserializeThread
+    1. E.g. this would allow passing an already existing storage id for the thread to use, or an initialized custom chat message store to use.
+1. Run / RunStreaming
+    1. E.g. this would allow passing an override chat message store just for that run, or a desired schema for a structured output middleware component.
+
+**MEAI.ChatClient:**
+
+1. GetResponse / GetStreamingResponse
+
+### Reconciling with existing AdditionalProperties
+
+If we decide to add feature collections, separately from the existing AdditionalProperties dictionaries, we need to consider how to explain to users when to use each one.
+One possible approach though is to have the one use the other under the hood.
+AdditionalProperties could be stored as a feature in the feature collection.
+
+Users would be able to retrieve additional properties from the feature collection, in addition to retrieving it via a dedicated AdditionalProperties property.
+E.g. `features.Get<AdditionalPropertiesDictionary>()`
+
+One challenge with this approach is that when setting a value in the AdditionalProperties dictionary, the feature collection would need to be created first if it does not already exist.
+
+```csharp
+public class AgentRunOptions
+{
+    public AdditionalPropertiesDictionary? AdditionalProperties { get; set; }
+    public IAgentFeatureCollection? Features { get; set; }
+}
+
+var options = new AgentRunOptions();
+// This would need to create the feature collection first, if it does not already exist.
+options.AdditionalProperties ??= new AdditionalPropertiesDictionary();
+```
+
+Since IAgentFeatureCollection is an interface, AgentRunOptions would need to have a concrete implementation of the interface to create, meaning that the user cannot decide.
+It also means that if the user doesn't realise that AdditionalProperties is implemented using feature collections, they may set a value on AdditionalProperties, and then later overwrite the entire feature collection, losing the AdditionalProperties feature.
+
+Options to avoid these issues:
+
+1. Make `Features` readonly.
+    1. This would prevent the user from overwriting the feature collection after setting AdditionalProperties.
+    1. Since the user cannot set their own implementation of IAgentFeatureCollection, having an interface for it may not be necessary.
+
+### Feature Collection Implementation
+
+We have two options for implementing feature collections:
+
+1. Create our own [IAgentFeatureCollection interface](https://github.com/microsoft/agent-framework/pull/2354/files#diff-9c42f3e60d70a791af9841d9214e038c6de3eebfc10e3997cb4cdffeb2f1246d) and [implementation](https://github.com/microsoft/agent-framework/pull/2354/files#diff-a435cc738baec500b8799f7f58c1538e3bb06c772a208afc2615ff90ada3f4ca).
+2. Reuse the asp.net [IFeatureCollection interface](https://github.com/dotnet/aspnetcore/blob/main/src/Extensions/Features/src/IFeatureCollection.cs) and [implementation](https://github.com/dotnet/aspnetcore/blob/main/src/Extensions/Features/src/FeatureCollection.cs).
+
+#### Roll our own
+
+Advantages:
+
+Creating our own IAgentFeatureCollection interface and implementation has the advantage of being more clearly associated with the agent framework and allows us to
+improve on some of the design decisions made in asp.net core's IFeatureCollection.
+
+Drawbacks:
+
+It would mean a different implementation to maintain and test.
+
+#### Reuse asp.net IFeatureCollection
+
+Advantages:
+
+Reusing the asp.net IFeatureCollection has the advantage of being able to reuse the well-established and tested implementation from asp.net
+core. Users who are using agents in an asp.net core application may be able to pass feature collections from asp.net core to the agent framework directly.
+
+Drawbacks:
+
+While the package name is `Microsoft.Extensions.Features`, the namespaces of the types are `Microsoft.AspNetCore.Http.Features`, which may create confusion for users of agent framework who are not building web applications or services.
+Users may rightly ask: Why do I need to use a class from asp.net core when I'm not building a web application / service?
+
+The current design has some design issues that would be good to avoid.  E.g. it does not distinguish between a feature being "not set" and "null". Get returns both as null and there is no tryget method.
+Since the [default implementation](https://github.com/dotnet/aspnetcore/blob/main/src/Extensions/Features/src/FeatureCollection.cs) also supports value types, it throws for null values of value types.
+A TryGet method would be more appropriate.
+
+## Feature Layering
+
+One possible scenario when adding support for feature collections is to allow layering of features by scope.
+
+The following levels of scope could be supported:
+
+1. Application - Application wide features that apply to all agents / chat clients
+2. Artifact (Agent / ChatClient) - Features that apply to all runs of a specific agent or chat client instance
+3. Action (GetNewThread / Run / GetResponse) - Feature that apply to a single action only
+
+When retrieving a feature from the collection, the search would start from the most specific scope (Action) and progress to the least specific scope (Application), returning the first matching feature found.
+
+Introducing layering adds some challenges:
+
+- There may be multiple feature collections at the same scope level, e.g. an Agent that uses a ChatClient where both have their own feature collections.
+  - Do we layer the agent feature collection over the chat client feature collection (Application -> ChatClient -> Agent -> Run), or only use the agent feature collection in the agent (Application -> Agent -> Run), and the chat client feature collection in the chat client (Application -> ChatClient -> Run)?
+- The appropriate base feature collection may change when progressing down the stack, e.g. when an Agent calls a ChatClient, the action feature collection stays the same, but the artifact feature collection changes.
+- Who creates the feature collection hierarchy?
+  - Since the hierarchy changes as it progresses down the execution stack, and the caller can only pass in the action level feature collection, the callee needs to combine it with its own artifact level feature collection and the application level feature collection. Each action will need to build the appropriate feature collection hierarchy, at the start of its execution.
+- For Artifact level features, it seems odd to pass them in as a bag of untyped features, when we are constructing a known artifact type and therefore can have typed settings.
+  - E.g. today we have a strongly typed setting on ChatClientAgentOptions to configure a ChatMessageStore for the agent.
+- To avoid global statics for application level features, the user would need to pass in the application level feature collection to each artifact that they create.
+  - This would be very odd if the user also already has to strongly typed settings for each feature that they want to set at the artifact level.
+
+### Layering Options
+
+1. No layering - only a single feature collection is supported per action (the caller can still create a layered collection if desired, but the callee does not do any layering automatically).
+    1. Fallback is to any features configured on the artifact via strongly typed settings.
+1. Full layering - support layering at all levels (Application -> Artifact -> Action).
+    1. Only apply applicable artifact level features when calling into that artifact.
+    1. Apply upstream artifact features when calling into downstream artifacts, e.g. Feature hierarchy in ChatClientAgent would be `Application -> Agent -> Run` and in ChatClient would be `Application -> ChatClient -> Agent -> Run` or `Application -> Agent -> ChatClient -> Run`
+    1. The user needs to provide the application level feature collection to each artifact that they create and artifact features are passed via strongly typed settings.
+
+### Accessing application level features Options
+
+We need to consider how application level features would be accessed if supported.
+
+1. The user provides the application level feature collection to each artifact that the user constructs
+    1. Passing the application level feature collection to each artifact is tedious for the user.
+1. There is a static application level feature collection that can be accessed globally.
+    1. Statics create issues with testing and isolation.
+
+## Decisions
+
+- Feature Collections Container: Use AdditionalProperties
+- Feature Layering: No layering - only a single collection/dictionary is supported per action. Application layers can be added later if needed.

docs/features/durable-agents/durable-agents-ttl.md

@@ -0,0 +1,147 @@
+# Time-To-Live (TTL) for durable agent sessions
+
+## Overview
+
+The durable agents automatically maintain conversation history and state for each session. Without automatic cleanup, this state can accumulate indefinitely, consuming storage resources and increasing costs. The Time-To-Live (TTL) feature provides automatic cleanup of idle agent sessions, ensuring that sessions are automatically deleted after a period of inactivity.
+
+## What is TTL?
+
+Time-To-Live (TTL) is a configurable duration that determines how long an agent session state will be retained after its last interaction. When an agent session is idle (no messages sent to it) for longer than the TTL period, the session state is automatically deleted. Each new interaction with an agent resets the TTL timer, extending the session's lifetime.
+
+## Benefits
+
+- **Automatic cleanup**: No manual intervention required to clean up idle agent sessions
+- **Cost optimization**: Reduces storage costs by automatically removing unused session state
+- **Resource management**: Prevents unbounded growth of agent session state in storage
+- **Configurable**: Set TTL globally or per-agent type to match your application's needs
+
+## Configuration
+
+TTL can be configured at two levels:
+
+1. **Global default TTL**: Applies to all agent sessions unless overridden
+2. **Per-agent type TTL**: Overrides the global default for specific agent types
+
+Additionally, you can configure a **minimum deletion delay** that controls how frequently deletion operations are scheduled. The default value is 5 minutes, and the maximum allowed value is also 5 minutes.
+
+> [!NOTE]
+> Reducing the minimum deletion delay below 5 minutes can be useful for testing or for ensuring rapid cleanup of short-lived agent sessions. However, this can also increase the load on the system and should be used with caution.
+
+### Default values
+
+- **Default TTL**: 14 days
+- **Minimum TTL deletion delay**: 5 minutes (maximum allowed value, subject to change in future releases)
+
+### Configuration examples
+
+#### .NET
+
+```csharp
+// Configure global default TTL and minimum signal delay
+services.ConfigureDurableAgents(
+    options =>
+    {
+        // Set global default TTL to 7 days
+        options.DefaultTimeToLive = TimeSpan.FromDays(7);
+
+        // Add agents (will use global default TTL)
+        options.AddAIAgent(myAgent);
+    });
+
+// Configure per-agent TTL
+services.ConfigureDurableAgents(
+    options =>
+    {
+        options.DefaultTimeToLive = TimeSpan.FromDays(14); // Global default
+        
+        // Agent with custom TTL of 1 day
+        options.AddAIAgent(shortLivedAgent, timeToLive: TimeSpan.FromDays(1));
+        
+        // Agent with custom TTL of 90 days
+        options.AddAIAgent(longLivedAgent, timeToLive: TimeSpan.FromDays(90));
+        
+        // Agent using global default (14 days)
+        options.AddAIAgent(defaultAgent);
+    });
+
+// Disable TTL for specific agents by setting TTL to null
+services.ConfigureDurableAgents(
+    options =>
+    {
+        options.DefaultTimeToLive = TimeSpan.FromDays(14);
+        
+        // Agent with no TTL (never expires)
+        options.AddAIAgent(permanentAgent, timeToLive: null);
+    });
+```
+
+## How TTL works
+
+The following sections describe how TTL works in detail.
+
+### Expiration tracking
+
+Each agent session maintains an expiration timestamp in its internally managed state that is updated whenever the session processes a message:
+
+1. When a message is sent to an agent session, the expiration time is set to `current time + TTL`
+2. The runtime schedules a delete operation for the expiration time (subject to minimum delay constraints)
+3. When the delete operation runs, if the current time is past the expiration time, the session state is deleted. Otherwise, the delete operation is rescheduled for the next expiration time.
+
+### State deletion
+
+When an agent session expires, its entire state is deleted, including:
+
+- Conversation history
+- Any custom state data
+- Expiration timestamps
+
+After deletion, if a message is sent to the same agent session, a new session is created with a fresh conversation history.
+
+## Behavior examples
+
+The following examples illustrate how TTL works in different scenarios.
+
+### Example 1: Agent session expires after TTL
+
+1. Agent configured with 30-day TTL
+2. User sends message at Day 0 → agent session created, expiration set to Day 30
+3. No further messages sent
+4. At Day 30 → Agent session is deleted
+5. User sends message at Day 31 → New agent session created with fresh conversation history
+
+### Example 2: TTL reset on interaction
+
+1. Agent configured with 30-day TTL
+2. User sends message at Day 0 → agent session created, expiration set to Day 30
+3. User sends message at Day 15 → Expiration reset to Day 45
+4. User sends message at Day 40 → Expiration reset to Day 70
+5. Agent session remains active as long as there are regular interactions
+
+## Logging
+
+The TTL feature includes comprehensive logging to track state changes:
+
+- **Expiration time updated**: Logged when TTL expiration time is set or updated
+- **Deletion scheduled**: Logged when a deletion check signal is scheduled
+- **Deletion check**: Logged when a deletion check operation runs
+- **Session expired**: Logged when an agent session is deleted due to expiration
+- **TTL rescheduled**: Logged when a deletion signal is rescheduled
+
+These logs help monitor TTL behavior and troubleshoot any issues.
+
+## Best practices
+
+1. **Choose appropriate TTL values**: Balance between storage costs and user experience. Too short TTLs may delete active sessions, while too long TTLs may accumulate unnecessary state.
+
+2. **Use per-agent TTLs**: Different agents may have different usage patterns. Configure TTLs per-agent based on expected session lifetimes.
+
+3. **Monitor expiration logs**: Review logs to understand TTL behavior and adjust configuration as needed.
+
+4. **Test with short TTLs**: During development, use short TTLs (e.g., minutes) to verify TTL behavior without waiting for long periods.
+
+## Limitations
+
+- TTL is based on wall-clock time, not activity time. The expiration timer starts from the last message timestamp.
+- Deletion checks are durably scheduled operations and may have slight delays depending on system load.
+- Once an agent session is deleted, its conversation history cannot be recovered.
+- TTL deletion requires at least one worker to be available to process the deletion operation message.

docs/specs/001-foundry-sdk-alignment.md

@@ -125,7 +125,7 @@ The proposed solution is to add helper methods which allow developers to either
 - [Foundry SDK] Create a `PersistentAgentsClient`
 - [Foundry SDK] Create a `PersistentAgent` using the `PersistentAgentsClient`
 - [Foundry SDK] Retrieve an `AIAgent` using the `PersistentAgentsClient`
-- [Agent Framework SDK] Invoke the `AIAgent` instance and access response from the `AgentRunResponse` 
+- [Agent Framework SDK] Invoke the `AIAgent` instance and access response from the `AgentResponse` 
 - [Foundry SDK] Clean up the agent
 
 
@@ -156,7 +156,7 @@ await persistentAgentsClient.Administration.DeleteAgentAsync(agent.Id);
 
 - [Foundry SDK] Create a `PersistentAgentsClient`
 - [Foundry SDK] Create a `AIAgent` using the `PersistentAgentsClient`
-- [Agent Framework SDK] Invoke the `AIAgent` instance and access response from the `AgentRunResponse` 
+- [Agent Framework SDK] Invoke the `AIAgent` instance and access response from the `AgentResponse` 
 - [Foundry SDK] Clean up the agent
 
 ```csharp
@@ -184,7 +184,7 @@ await persistentAgentsClient.Administration.DeleteAgentAsync(agent.Id);
 - [Foundry SDK] Create a `PersistentAgentsClient`
 - [Foundry SDK] Create a `AIAgent` using the `PersistentAgentsClient`
 - [Agent Framework SDK] Optionally create an `AgentThread` for the agent run
-- [Agent Framework SDK] Invoke the `AIAgent` instance and access response from the `AgentRunResponse` 
+- [Agent Framework SDK] Invoke the `AIAgent` instance and access response from the `AgentResponse` 
 - [Foundry SDK] Clean up the agent and the agent thread
 
 ```csharp
@@ -227,7 +227,7 @@ await persistentAgentsClient.Administration.DeleteAgentAsync(agent.Id);
 - [Foundry SDK] Create a `PersistentAgentsClient`
 - [Foundry SDK] Create multiple `AIAgent` instances using the `PersistentAgentsClient`
 - [Agent Framework SDK] Create a `SequentialOrchestration` and add all of the agents to it
-- [Agent Framework SDK] Invoke the `SequentialOrchestration` instance and access response from the `AgentRunResponse` 
+- [Agent Framework SDK] Invoke the `SequentialOrchestration` instance and access response from the `AgentResponse` 
 - [Foundry SDK] Clean up the agents
 
 ```csharp
@@ -281,7 +281,7 @@ SequentialOrchestration orchestration =
 // Run the orchestration
 string input = "An eco-friendly stainless steel water bottle that keeps drinks cold for 24 hours";
 Console.WriteLine($"\n# INPUT: {input}\n");
-AgentRunResponse result = await orchestration.RunAsync(input);
+AgentResponse result = await orchestration.RunAsync(input);
 Console.WriteLine($"\n# RESULT: {result}");
 
 // Cleanup

dotnet/.editorconfig

@@ -209,6 +209,7 @@ dotnet_diagnostic.CA2000.severity = none # Call System.IDisposable.Dispose on ob
 dotnet_diagnostic.CA2225.severity = none # Operator overloads have named alternates
 dotnet_diagnostic.CA2227.severity = none # Change to be read-only by removing the property setter
 dotnet_diagnostic.CA2249.severity = suggestion # Consider using 'Contains' method instead of 'IndexOf' method
+dotnet_diagnostic.CA2252.severity = none # Requires preview
 dotnet_diagnostic.CA2253.severity = none # Named placeholders in the logging message template should not be comprised of only numeric characters
 dotnet_diagnostic.CA2253.severity = none # Named placeholders in the logging message template should not be comprised of only numeric characters
 dotnet_diagnostic.CA2263.severity = suggestion # Use generic overload

dotnet/Directory.Packages.props

@@ -11,40 +11,40 @@
   </PropertyGroup>
   <ItemGroup>
     <!-- Aspire.* -->
-    <PackageVersion Include="Anthropic" Version="11.0.0" />
-    <PackageVersion Include="Anthropic.Foundry" Version="0.1.0" />
+    <PackageVersion Include="Anthropic" Version="12.3.0" />
+    <PackageVersion Include="Anthropic.Foundry" Version="0.4.1" />
     <PackageVersion Include="Aspire.Azure.AI.OpenAI" Version="13.0.0-preview.1.25560.3" />
     <PackageVersion Include="Aspire.Hosting.AppHost" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Hosting.Azure.CognitiveServices" Version="$(AspireAppHostSdkVersion)" />
     <PackageVersion Include="Aspire.Microsoft.Azure.Cosmos" Version="$(AspireAppHostSdkVersion)" />
-    <PackageVersion Include="CommunityToolkit.Aspire.OllamaSharp" Version="13.0.0-beta.440" />
+    <PackageVersion Include="CommunityToolkit.Aspire.OllamaSharp" Version="13.0.0" />
     <!-- Azure.* -->
-    <PackageVersion Include="Azure.AI.Projects" Version="1.2.0-beta.3" />
-    <PackageVersion Include="Azure.AI.Projects.OpenAI" Version="1.0.0-beta.4" />
+    <PackageVersion Include="Azure.AI.Projects" Version="1.2.0-beta.5" />
+    <PackageVersion Include="Azure.AI.Projects.OpenAI" Version="1.0.0-beta.5" />
     <PackageVersion Include="Azure.AI.Agents.Persistent" Version="1.2.0-beta.8" />
-    <PackageVersion Include="Azure.AI.OpenAI" Version="2.7.0-beta.2" />
-    <PackageVersion Include="Azure.Identity" Version="1.17.0" />
+    <PackageVersion Include="Azure.AI.OpenAI" Version="2.8.0-beta.1" />
+    <PackageVersion Include="Azure.Identity" Version="1.17.1" />
     <PackageVersion Include="Azure.Monitor.OpenTelemetry.Exporter" Version="1.4.0" />
     <!-- Google Gemini  -->
-    <PackageVersion Include="Google.GenAI" Version="0.6.0" />
+    <PackageVersion Include="Google.GenAI" Version="0.11.0" />
     <PackageVersion Include="Mscc.GenerativeAI.Microsoft" Version="2.9.3" />
     <!-- Microsoft.Azure.* -->
     <PackageVersion Include="Microsoft.Azure.Cosmos" Version="3.54.0" />
     <!-- Newtonsoft.Json -->
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.4" />
     <!-- System.* -->
-    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.1" />
+    <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.2" />
     <PackageVersion Include="Microsoft.Bcl.HashCode" Version="6.0.0" />
     <PackageVersion Include="System.ClientModel" Version="1.8.1" />
     <PackageVersion Include="System.CodeDom" Version="10.0.0" />
-    <PackageVersion Include="System.Collections.Immutable" Version="10.0.0" />
+    <PackageVersion Include="System.Collections.Immutable" Version="10.0.1" />
     <PackageVersion Include="System.CommandLine" Version="2.0.0-rc.2.25502.107" />
-    <PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.1" />
+    <PackageVersion Include="System.Diagnostics.DiagnosticSource" Version="10.0.2" />
     <PackageVersion Include="System.Linq.AsyncEnumerable" Version="10.0.0" />
     <PackageVersion Include="System.Net.Http.Json" Version="10.0.0" />
-    <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.0" />
-    <PackageVersion Include="System.Text.Json" Version="10.0.1" />
-    <PackageVersion Include="System.Threading.Channels" Version="10.0.1" />
+    <PackageVersion Include="System.Net.ServerSentEvents" Version="10.0.1" />
+    <PackageVersion Include="System.Text.Json" Version="10.0.2" />
+    <PackageVersion Include="System.Threading.Channels" Version="10.0.2" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.6.3" />
     <PackageVersion Include="System.Net.Security" Version="4.3.2" />
     <!-- OpenTelemetry -->
@@ -61,10 +61,9 @@
     <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="10.0.0" />
     <PackageVersion Include="Swashbuckle.AspNetCore.SwaggerUI" Version="10.0.0" />
     <!-- Microsoft.Extensions.* -->
-    <PackageVersion Include="Microsoft.Extensions.AI" Version="10.1.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.1.0" />
-    <PackageVersion Include="Microsoft.Extensions.AI.AzureAIInference" Version="10.0.0-preview.1.25559.3" />
-    <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.1.0-preview.1.25608.1" />
+    <PackageVersion Include="Microsoft.Extensions.AI" Version="10.2.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.Abstractions" Version="10.2.0" />
+    <PackageVersion Include="Microsoft.Extensions.AI.OpenAI" Version="10.2.0-preview.1.26063.2" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.Binder" Version="10.0.0" />
@@ -72,11 +71,11 @@
     <PackageVersion Include="Microsoft.Extensions.Configuration.Json" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Configuration.UserSecrets" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.1" />
+    <PackageVersion Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.Logging" Version="10.0.0" />
-    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.1" />
+    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.2" />
     <PackageVersion Include="Microsoft.Extensions.Logging.Console" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.ServiceDiscovery" Version="10.0.0" />
     <PackageVersion Include="Microsoft.Extensions.VectorData.Abstractions" Version="9.7.0" />
@@ -90,6 +89,7 @@
     <PackageVersion Include="Microsoft.SemanticKernel.Agents.AzureAI" Version="1.67.0-preview" />
     <PackageVersion Include="Microsoft.SemanticKernel.Plugins.OpenApi" Version="1.67.0" />
     <!-- Agent SDKs -->
+    <PackageVersion Include="GitHub.Copilot.SDK" Version="0.1.18" />
     <PackageVersion Include="Microsoft.Agents.CopilotStudio.Client" Version="1.3.171-beta" />
     <!-- M365 Agents SDK -->
     <PackageVersion Include="AdaptiveCards" Version="3.1.0" />
@@ -101,32 +101,33 @@
     <!-- MCP -->
     <PackageVersion Include="ModelContextProtocol" Version="0.4.0-preview.3" />
     <!-- Inference SDKs -->
-    <PackageVersion Include="Anthropic.SDK" Version="5.8.0" />
-    <PackageVersion Include="AWSSDK.Extensions.Bedrock.MEAI" Version="4.0.4.7" />
+    <PackageVersion Include="AWSSDK.Extensions.Bedrock.MEAI" Version="4.0.5.1" />
     <PackageVersion Include="Microsoft.ML.OnnxRuntimeGenAI" Version="0.10.0" />
     <PackageVersion Include="OllamaSharp" Version="5.4.8" />
-    <PackageVersion Include="OpenAI" Version="2.7.0" />
+    <PackageVersion Include="OpenAI" Version="2.8.0" />
     <!-- Identity -->
     <PackageVersion Include="Microsoft.Identity.Client.Extensions.Msal" Version="4.78.0" />
     <!-- Workflows -->
-    <PackageVersion Include="Microsoft.Bot.ObjectModel" Version="1.2025.1106.1" />
-    <PackageVersion Include="Microsoft.Bot.ObjectModel.Json" Version="1.2025.1106.1" />
-    <PackageVersion Include="Microsoft.Bot.ObjectModel.PowerFx" Version="1.2025.1106.1" />
+    <PackageVersion Include="Microsoft.Agents.ObjectModel" Version="2026.1.2.3" />
+    <PackageVersion Include="Microsoft.Agents.ObjectModel.Json" Version="2026.1.2.3" />
+    <PackageVersion Include="Microsoft.Agents.ObjectModel.PowerFx" Version="2026.1.2.3" />
     <PackageVersion Include="Microsoft.PowerFx.Interpreter" Version="1.5.0-build.20251008-1002" />
     <!-- Durable Task -->
-    <PackageVersion Include="Microsoft.DurableTask.Client" Version="1.16.2" />
-    <PackageVersion Include="Microsoft.DurableTask.Client.AzureManaged" Version="1.16.2-preview.1" />
-    <PackageVersion Include="Microsoft.DurableTask.Worker" Version="1.16.2" />
-    <PackageVersion Include="Microsoft.DurableTask.Worker.AzureManaged" Version="1.16.2-preview.1" />
+    <PackageVersion Include="Microsoft.DurableTask.Client" Version="1.18.0" />
+    <PackageVersion Include="Microsoft.DurableTask.Client.AzureManaged" Version="1.18.0" />
+    <PackageVersion Include="Microsoft.DurableTask.Worker" Version="1.18.0" />
+    <PackageVersion Include="Microsoft.DurableTask.Worker.AzureManaged" Version="1.18.0" />
     <!-- Azure Functions -->
     <PackageVersion Include="Microsoft.Azure.Functions.Worker" Version="2.50.0" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.ApplicationInsights" Version="2.50.0" />
-    <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask" Version="1.9.0" />
-    <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask.AzureManaged" Version="1.0.0" />
+    <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask" Version="1.11.0" />
+    <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.DurableTask.AzureManaged" Version="1.0.1" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.3.0" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.Http.AspNetCore" Version="2.1.0" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Extensions.Mcp" Version="1.0.0" />
     <PackageVersion Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.7" />
+    <!-- Redis -->
+    <PackageVersion Include="StackExchange.Redis" Version="2.10.1" />
     <!-- Test -->
     <PackageVersion Include="FluentAssertions" Version="8.8.0" />
     <PackageVersion Include="Microsoft.AspNetCore.TestHost" Condition="'$(TargetFramework)' == 'net8.0'" Version="8.0.22" />
@@ -143,6 +144,7 @@
     <!-- Symbols -->
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0" />
     <!-- Toolset -->
+    <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.11.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.14.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.NetAnalyzers" Version="10.0.100" />
     <PackageReference Include="Microsoft.CodeAnalysis.NetAnalyzers">

dotnet/README.md

@@ -21,7 +21,7 @@ var deploymentName = Environment.GetEnvironmentVariable("AZURE_OPENAI_DEPLOYMENT
 
 var agent = new AzureOpenAIClient(new Uri(endpoint), new AzureCliCredential())
     .GetOpenAIResponseClient(deploymentName)
-    .CreateAIAgent(name: "HaikuBot", instructions: "You are an upbeat assistant that writes beautifully.");
+    .AsAIAgent(name: "HaikuBot", instructions: "You are an upbeat assistant that writes beautifully.");
 
 Console.WriteLine(await agent.RunAsync("Write a haiku about Microsoft Agent Framework."));
 ```

dotnet/agent-framework-dotnet.slnx

@@ -23,16 +23,29 @@
     <Project Path="samples/AGUIClientServer/AGUIDojoServer/AGUIDojoServer.csproj" />
     <Project Path="samples/AGUIClientServer/AGUIServer/AGUIServer.csproj" />
   </Folder>
-  <Folder Name="/Samples/AzureFunctions/">
-    <File Path="samples/AzureFunctions/.editorconfig" />
-    <File Path="samples/AzureFunctions/README.md" />
-    <Project Path="samples/AzureFunctions/01_SingleAgent/01_SingleAgent.csproj" />
-    <Project Path="samples/AzureFunctions/02_AgentOrchestration_Chaining/02_AgentOrchestration_Chaining.csproj" />
-    <Project Path="samples/AzureFunctions/03_AgentOrchestration_Concurrency/03_AgentOrchestration_Concurrency.csproj" />
-    <Project Path="samples/AzureFunctions/04_AgentOrchestration_Conditionals/04_AgentOrchestration_Conditionals.csproj" />
-    <Project Path="samples/AzureFunctions/05_AgentOrchestration_HITL/05_AgentOrchestration_HITL.csproj" />
-    <Project Path="samples/AzureFunctions/06_LongRunningTools/06_LongRunningTools.csproj" />
-    <Project Path="samples/AzureFunctions/07_AgentAsMcpTool/07_AgentAsMcpTool.csproj" />
+  <Folder Name="/Samples/Durable/" />
+  <Folder Name="/Samples/Durable/Agents/" />
+  <Folder Name="/Samples/Durable/Agents/AzureFunctions/">
+    <File Path="samples/Durable/Agents/AzureFunctions/.editorconfig" />
+    <File Path="samples/Durable/Agents/AzureFunctions/README.md" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/01_SingleAgent/01_SingleAgent.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/02_AgentOrchestration_Chaining/02_AgentOrchestration_Chaining.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/03_AgentOrchestration_Concurrency/03_AgentOrchestration_Concurrency.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/04_AgentOrchestration_Conditionals/04_AgentOrchestration_Conditionals.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/05_AgentOrchestration_HITL/05_AgentOrchestration_HITL.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/06_LongRunningTools/06_LongRunningTools.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/07_AgentAsMcpTool/07_AgentAsMcpTool.csproj" />
+    <Project Path="samples/Durable/Agents/AzureFunctions/08_ReliableStreaming/08_ReliableStreaming.csproj" />
+  </Folder>
+  <Folder Name="/Samples/Durable/Agents/ConsoleApps/">
+    <File Path="samples/Durable/Agents/ConsoleApps/README.md" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/01_SingleAgent/01_SingleAgent.csproj" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/02_AgentOrchestration_Chaining/02_AgentOrchestration_Chaining.csproj" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/03_AgentOrchestration_Concurrency/03_AgentOrchestration_Concurrency.csproj" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/04_AgentOrchestration_Conditionals/04_AgentOrchestration_Conditionals.csproj" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/05_AgentOrchestration_HITL/05_AgentOrchestration_HITL.csproj" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/06_LongRunningTools/06_LongRunningTools.csproj" />
+    <Project Path="samples/Durable/Agents/ConsoleApps/07_ReliableStreaming/07_ReliableStreaming.csproj" />
   </Folder>
   <Folder Name="/Samples/GettingStarted/">
     <File Path="samples/GettingStarted/README.md" />
@@ -52,6 +65,7 @@
     <Project Path="samples/GettingStarted/AgentProviders/Agent_With_AzureOpenAIChatCompletion/Agent_With_AzureOpenAIChatCompletion.csproj" />
     <Project Path="samples/GettingStarted/AgentProviders/Agent_With_AzureOpenAIResponses/Agent_With_AzureOpenAIResponses.csproj" />
     <Project Path="samples/GettingStarted/AgentProviders/Agent_With_CustomImplementation/Agent_With_CustomImplementation.csproj" />
+    <Project Path="samples/GettingStarted/AgentProviders/Agent_With_GitHubCopilot/Agent_With_GitHubCopilot.csproj" />
     <Project Path="samples/GettingStarted/AgentProviders/Agent_With_GoogleGemini/Agent_With_GoogleGemini.csproj" />
     <Project Path="samples/GettingStarted/AgentProviders/Agent_With_Ollama/Agent_With_Ollama.csproj" />
     <Project Path="samples/GettingStarted/AgentProviders/Agent_With_ONNX/Agent_With_ONNX.csproj" />
@@ -80,6 +94,7 @@
     <Project Path="samples/GettingStarted/Agents/Agent_Step17_BackgroundResponses/Agent_Step17_BackgroundResponses.csproj" />
     <Project Path="samples/GettingStarted/Agents/Agent_Step18_DeepResearch/Agent_Step18_DeepResearch.csproj" />
     <Project Path="samples/GettingStarted/Agents/Agent_Step19_Declarative/Agent_Step19_Declarative.csproj" />
+    <Project Path="samples/GettingStarted/Agents/Agent_Step20_AdditionalAIContext/Agent_Step20_AdditionalAIContext.csproj" />
   </Folder>
   <Folder Name="/Samples/GettingStarted/DeclarativeAgents/">
     <Project Path="samples/GettingStarted/DeclarativeAgents/ChatClient/DeclarativeChatClientAgents.csproj" />
@@ -129,6 +144,7 @@
     <Project Path="samples/GettingStarted/AgentWithOpenAI/Agent_OpenAI_Step02_Reasoning/Agent_OpenAI_Step02_Reasoning.csproj" />
     <Project Path="samples/GettingStarted/AgentWithOpenAI/Agent_OpenAI_Step03_CreateFromChatClient/Agent_OpenAI_Step03_CreateFromChatClient.csproj" />
     <Project Path="samples/GettingStarted/AgentWithOpenAI/Agent_OpenAI_Step04_CreateFromOpenAIResponseClient/Agent_OpenAI_Step04_CreateFromOpenAIResponseClient.csproj" />
+    <Project Path="samples/GettingStarted/AgentWithOpenAI/Agent_OpenAI_Step05_Conversation/Agent_OpenAI_Step05_Conversation.csproj" />
   </Folder>
   <Folder Name="/Samples/Purview/" />
   <Folder Name="/Samples/Purview/AgentWithPurview/">
@@ -214,6 +230,7 @@
   <Folder Name="/Samples/GettingStarted/Workflows/Agents/">
     <Project Path="samples/GettingStarted/Workflows/Agents/CustomAgentExecutors/CustomAgentExecutors.csproj" />
     <Project Path="samples/GettingStarted/Workflows/Agents/FoundryAgent/FoundryAgent.csproj" />
+    <Project Path="samples/GettingStarted/Workflows/Agents/GroupChatToolApproval/GroupChatToolApproval.csproj" />
     <Project Path="samples/GettingStarted/Workflows/Agents/WorkflowAsAnAgent/WorkflowAsAnAgent.csproj" />
   </Folder>
   <Folder Name="/Samples/GettingStarted/Workflows/Checkpoint/">
@@ -284,6 +301,11 @@
     <File Path="../docs/decisions/0007-agent-filtering-middleware.md" />
     <File Path="../docs/decisions/0008-python-subpackages.md" />
     <File Path="../docs/decisions/0009-support-long-running-operations.md" />
+    <File Path="../docs/decisions/0010-ag-ui-support.md" />
+    <File Path="../docs/decisions/0011-create-get-agent-api.md" />
+    <File Path="../docs/decisions/0012-python-typeddict-options.md" />
+    <File Path="../docs/decisions/0013-python-get-response-simplification.md" />
+    <File Path="../docs/decisions/0014-feature-collections.md" />
     <File Path="../docs/decisions/adr-short-template.md" />
     <File Path="../docs/decisions/adr-template.md" />
     <File Path="../docs/decisions/README.md" />
@@ -375,6 +397,7 @@
     <Project Path="src/Microsoft.Agents.AI.Abstractions/Microsoft.Agents.AI.Abstractions.csproj" />
     <Project Path="src/Microsoft.Agents.AI.AGUI/Microsoft.Agents.AI.AGUI.csproj" />
     <Project Path="src/Microsoft.Agents.AI.Anthropic/Microsoft.Agents.AI.Anthropic.csproj" />
+    <Project Path="src/Microsoft.Agents.AI.GitHub.Copilot/Microsoft.Agents.AI.GitHub.Copilot.csproj" />
     <Project Path="src/Microsoft.Agents.AI.AzureAI.Persistent/Microsoft.Agents.AI.AzureAI.Persistent.csproj" />
     <Project Path="src/Microsoft.Agents.AI.AzureAI/Microsoft.Agents.AI.AzureAI.csproj" />
     <Project Path="src/Microsoft.Agents.AI.CopilotStudio/Microsoft.Agents.AI.CopilotStudio.csproj" />
@@ -394,6 +417,7 @@
     <Project Path="src/Microsoft.Agents.AI.Workflows.Declarative.AzureAI/Microsoft.Agents.AI.Workflows.Declarative.AzureAI.csproj" />
     <Project Path="src/Microsoft.Agents.AI.Workflows.Declarative/Microsoft.Agents.AI.Workflows.Declarative.csproj" />
     <Project Path="src/Microsoft.Agents.AI.Workflows/Microsoft.Agents.AI.Workflows.csproj" />
+    <Project Path="src/Microsoft.Agents.AI.Workflows.Generators/Microsoft.Agents.AI.Workflows.Generators.csproj" />
     <Project Path="src/Microsoft.Agents.AI/Microsoft.Agents.AI.csproj" />
   </Folder>
   <Folder Name="/Tests/" />
@@ -403,6 +427,7 @@
     <Project Path="tests/AzureAI.IntegrationTests/AzureAI.IntegrationTests.csproj" />
     <Project Path="tests/AzureAIAgentsPersistent.IntegrationTests/AzureAIAgentsPersistent.IntegrationTests.csproj" />
     <Project Path="tests/CopilotStudio.IntegrationTests/CopilotStudio.IntegrationTests.csproj" />
+    <Project Path="tests/Microsoft.Agents.AI.GitHub.Copilot.IntegrationTests/Microsoft.Agents.AI.GitHub.Copilot.IntegrationTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.DurableTask.IntegrationTests/Microsoft.Agents.AI.DurableTask.IntegrationTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests/Microsoft.Agents.AI.Hosting.AGUI.AspNetCore.IntegrationTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.Hosting.AzureFunctions.IntegrationTests/Microsoft.Agents.AI.Hosting.AzureFunctions.IntegrationTests.csproj" />
@@ -417,6 +442,7 @@
     <Project Path="tests/Microsoft.Agents.AI.Abstractions.UnitTests/Microsoft.Agents.AI.Abstractions.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.AGUI.UnitTests/Microsoft.Agents.AI.AGUI.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.Anthropic.UnitTests/Microsoft.Agents.AI.Anthropic.UnitTests.csproj" />
+    <Project Path="tests/Microsoft.Agents.AI.GitHub.Copilot.UnitTests/Microsoft.Agents.AI.GitHub.Copilot.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.AzureAI.Persistent.UnitTests/Microsoft.Agents.AI.AzureAI.Persistent.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.AzureAI.UnitTests/Microsoft.Agents.AI.AzureAI.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.CosmosNoSql.UnitTests/Microsoft.Agents.AI.CosmosNoSql.UnitTests.csproj" />
@@ -433,6 +459,7 @@
     <Project Path="tests/Microsoft.Agents.AI.Purview.UnitTests/Microsoft.Agents.AI.Purview.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.UnitTests/Microsoft.Agents.AI.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests/Microsoft.Agents.AI.Workflows.Declarative.UnitTests.csproj" />
+    <Project Path="tests/Microsoft.Agents.AI.Workflows.Generators.UnitTests/Microsoft.Agents.AI.Workflows.Generators.UnitTests.csproj" />
     <Project Path="tests/Microsoft.Agents.AI.Workflows.UnitTests/Microsoft.Agents.AI.Workflows.UnitTests.csproj" />
   </Folder>
 </Solution>

dotnet/agent-framework-release.slnf

@@ -6,6 +6,7 @@
       "src\\Microsoft.Agents.AI.Abstractions\\Microsoft.Agents.AI.Abstractions.csproj",
       "src\\Microsoft.Agents.AI.AGUI\\Microsoft.Agents.AI.AGUI.csproj",
       "src\\Microsoft.Agents.AI.Anthropic\\Microsoft.Agents.AI.Anthropic.csproj",
+      "src\\Microsoft.Agents.AI.GitHub.Copilot\\Microsoft.Agents.AI.GitHub.Copilot.csproj",
       "src\\Microsoft.Agents.AI.AzureAI.Persistent\\Microsoft.Agents.AI.AzureAI.Persistent.csproj",
       "src\\Microsoft.Agents.AI.AzureAI\\Microsoft.Agents.AI.AzureAI.csproj",
       "src\\Microsoft.Agents.AI.CopilotStudio\\Microsoft.Agents.AI.CopilotStudio.csproj",

dotnet/nuget/nuget-package.props

@@ -2,9 +2,9 @@
   <PropertyGroup>
     <!-- Central version prefix - applies to all nuget packages. -->
     <VersionPrefix>1.0.0</VersionPrefix>
-    <PackageVersion Condition="'$(VersionSuffix)' != ''">$(VersionPrefix)-$(VersionSuffix).251204.1</PackageVersion>
-    <PackageVersion Condition="'$(VersionSuffix)' == ''">$(VersionPrefix)-preview.251204.1</PackageVersion>
-    <GitTag>1.0.0-preview.251204.1</GitTag>
+    <PackageVersion Condition="'$(VersionSuffix)' != ''">$(VersionPrefix)-$(VersionSuffix).260128.1</PackageVersion>
+    <PackageVersion Condition="'$(VersionSuffix)' == ''">$(VersionPrefix)-preview.260128.1</PackageVersion>
+    <GitTag>1.0.0-preview.260128.1</GitTag>
 
     <Configurations>Debug;Release;Publish</Configurations>
     <IsPackable>true</IsPackable>

dotnet/samples/A2AClientServer/A2AClient/HostClientAgent.cs

@@ -29,7 +29,7 @@ internal sealed class HostClientAgent
             // Create the agent that uses the remote agents as tools
             this.Agent = new OpenAIClient(new ApiKeyCredential(apiKey))
              .GetChatClient(modelId)
-             .CreateAIAgent(instructions: "You specialize in handling queries for users and using your tools to provide answers.", name: "HostClient", tools: tools);
+             .AsAIAgent(instructions: "You specialize in handling queries for users and using your tools to provide answers.", name: "HostClient", tools: tools);
         }
         catch (Exception ex)
         {

dotnet/samples/A2AClientServer/A2AClient/Program.cs

@@ -42,7 +42,7 @@ public static class Program
         // Create the Host agent
         var hostAgent = new HostClientAgent(loggerFactory);
         await hostAgent.InitializeAgentAsync(modelId, apiKey, agentUrls!.Split(";"));
-        AgentThread thread = hostAgent.Agent!.GetNewThread();
+        AgentSession session = await hostAgent.Agent!.GetNewSessionAsync(cancellationToken);
         try
         {
             while (true)
@@ -61,7 +61,7 @@ public static class Program
                     break;
                 }
 
-                var agentResponse = await hostAgent.Agent!.RunAsync(message, thread, cancellationToken: cancellationToken);
+                var agentResponse = await hostAgent.Agent!.RunAsync(message, session, cancellationToken: cancellationToken);
                 foreach (var chatMessage in agentResponse.Messages)
                 {
                     Console.ForegroundColor = ConsoleColor.Cyan;

dotnet/samples/A2AClientServer/A2AServer/HostAgentFactory.cs

@@ -35,7 +35,7 @@ internal static class HostAgentFactory
     {
         AIAgent agent = new OpenAIClient(apiKey)
              .GetChatClient(model)
-             .CreateAIAgent(instructions, name, tools: tools);
+             .AsAIAgent(instructions, name, tools: tools);
 
         AgentCard agentCard = agentType.ToUpperInvariant() switch
         {

dotnet/samples/AGUIClientServer/AGUIClient/Program.cs

@@ -83,12 +83,12 @@ public static class Program
             serverUrl,
             jsonSerializerOptions: AGUIClientSerializerContext.Default.Options);
 
-        AIAgent agent = chatClient.CreateAIAgent(
+        AIAgent agent = chatClient.AsAIAgent(
             name: "agui-client",
             description: "AG-UI Client Agent",
             tools: [changeBackground, readClientClimateSensors]);
 
-        AgentThread thread = agent.GetNewThread();
+        AgentSession session = await agent.GetNewSessionAsync(cancellationToken);
         List<ChatMessage> messages = [new(ChatRole.System, "You are a helpful assistant.")];
         try
         {
@@ -112,23 +112,23 @@ public static class Program
 
                 // Call RunStreamingAsync to get streaming updates
                 bool isFirstUpdate = true;
-                string? threadId = null;
+                string? sessionId = null;
                 var updates = new List<ChatResponseUpdate>();
-                await foreach (AgentRunResponseUpdate update in agent.RunStreamingAsync(messages, thread, cancellationToken: cancellationToken))
+                await foreach (AgentResponseUpdate update in agent.RunStreamingAsync(messages, session, cancellationToken: cancellationToken))
                 {
                     // Use AsChatResponseUpdate to access ChatResponseUpdate properties
                     ChatResponseUpdate chatUpdate = update.AsChatResponseUpdate();
                     updates.Add(chatUpdate);
                     if (chatUpdate.ConversationId != null)
                     {
-                        threadId = chatUpdate.ConversationId;
+                        sessionId = chatUpdate.ConversationId;
                     }
 
                     // Display run started information from the first update
-                    if (isFirstUpdate && threadId != null && update.ResponseId != null)
+                    if (isFirstUpdate && sessionId != null && update.ResponseId != null)
                     {
                         Console.ForegroundColor = ConsoleColor.Yellow;
-                        Console.WriteLine($"\n[Run Started - Thread: {threadId}, Run: {update.ResponseId}]");
+                        Console.WriteLine($"\n[Run Started - Session: {sessionId}, Run: {update.ResponseId}]");
                         Console.ResetColor();
                         isFirstUpdate = false;
                     }
@@ -177,7 +177,7 @@ public static class Program
                     var lastUpdate = updates[^1];
                     Console.ForegroundColor = ConsoleColor.Yellow;
                     Console.WriteLine();
-                    Console.WriteLine($"[Run Ended - Thread: {threadId}, Run: {lastUpdate.ResponseId}]");
+                    Console.WriteLine($"[Run Ended - Session: {sessionId}, Run: {lastUpdate.ResponseId}]");
                     Console.ResetColor();
                 }
                 messages.Clear();

dotnet/samples/AGUIClientServer/AGUIDojoServer/AgenticUI/AgenticUIAgent.cs

@@ -19,21 +19,21 @@ internal sealed class AgenticUIAgent : DelegatingAIAgent
         this._jsonSerializerOptions = jsonSerializerOptions;
     }
 
-    public override Task<AgentRunResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
+    protected override Task<AgentResponse> RunCoreAsync(IEnumerable<ChatMessage> messages, AgentSession? session = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
     {
-        return this.RunStreamingAsync(messages, thread, options, cancellationToken).ToAgentRunResponseAsync(cancellationToken);
+        return this.RunCoreStreamingAsync(messages, session, options, cancellationToken).ToAgentResponseAsync(cancellationToken);
     }
 
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    protected override async IAsyncEnumerable<AgentResponseUpdate> RunCoreStreamingAsync(
         IEnumerable<ChatMessage> messages,
-        AgentThread? thread = null,
+        AgentSession? session = null,
         AgentRunOptions? options = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         // Track function calls that should trigger state events
         var trackedFunctionCalls = new Dictionary<string, FunctionCallContent>();
 
-        await foreach (var update in this.InnerAgent.RunStreamingAsync(messages, thread, options, cancellationToken).ConfigureAwait(false))
+        await foreach (var update in this.InnerAgent.RunStreamingAsync(messages, session, options, cancellationToken).ConfigureAwait(false))
         {
             // Process contents: track function calls and emit state events for results
             List<AIContent> stateEventsToEmit = new();
@@ -69,7 +69,7 @@ internal sealed class AgenticUIAgent : DelegatingAIAgent
 
             yield return update;
 
-            yield return new AgentRunResponseUpdate(
+            yield return new AgentResponseUpdate(
                 new ChatResponseUpdate(role: ChatRole.System, stateEventsToEmit)
                 {
                     MessageId = "delta_" + Guid.NewGuid().ToString("N"),

dotnet/samples/AGUIClientServer/AGUIDojoServer/ChatClientAgentFactory.cs

@@ -33,7 +33,7 @@ internal static class ChatClientAgentFactory
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
 
-        return chatClient.AsIChatClient().CreateAIAgent(
+        return chatClient.AsIChatClient().AsAIAgent(
             name: "AgenticChat",
             description: "A simple chat agent using Azure OpenAI");
     }
@@ -42,7 +42,7 @@ internal static class ChatClientAgentFactory
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
 
-        return chatClient.AsIChatClient().CreateAIAgent(
+        return chatClient.AsIChatClient().AsAIAgent(
             name: "BackendToolRenderer",
             description: "An agent that can render backend tools using Azure OpenAI",
             tools: [AIFunctionFactory.Create(
@@ -56,7 +56,7 @@ internal static class ChatClientAgentFactory
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
 
-        return chatClient.AsIChatClient().CreateAIAgent(
+        return chatClient.AsIChatClient().AsAIAgent(
             name: "HumanInTheLoopAgent",
             description: "An agent that involves human feedback in its decision-making process using Azure OpenAI");
     }
@@ -65,7 +65,7 @@ internal static class ChatClientAgentFactory
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
 
-        return chatClient.AsIChatClient().CreateAIAgent(
+        return chatClient.AsIChatClient().AsAIAgent(
             name: "ToolBasedGenerativeUIAgent",
             description: "An agent that uses tools to generate user interfaces using Azure OpenAI");
     }
@@ -73,7 +73,7 @@ internal static class ChatClientAgentFactory
     public static AIAgent CreateAgenticUI(JsonSerializerOptions options)
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
-        var baseAgent = chatClient.AsIChatClient().CreateAIAgent(new ChatClientAgentOptions
+        var baseAgent = chatClient.AsIChatClient().AsAIAgent(new ChatClientAgentOptions
         {
             Name = "AgenticUIAgent",
             Description = "An agent that generates agentic user interfaces using Azure OpenAI",
@@ -116,7 +116,7 @@ internal static class ChatClientAgentFactory
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
 
-        var baseAgent = chatClient.AsIChatClient().CreateAIAgent(
+        var baseAgent = chatClient.AsIChatClient().AsAIAgent(
             name: "SharedStateAgent",
             description: "An agent that demonstrates shared state patterns using Azure OpenAI");
 
@@ -127,7 +127,7 @@ internal static class ChatClientAgentFactory
     {
         ChatClient chatClient = s_azureOpenAIClient!.GetChatClient(s_deploymentName!);
 
-        var baseAgent = chatClient.AsIChatClient().CreateAIAgent(new ChatClientAgentOptions
+        var baseAgent = chatClient.AsIChatClient().AsAIAgent(new ChatClientAgentOptions
         {
             Name = "PredictiveStateUpdatesAgent",
             Description = "An agent that demonstrates predictive state updates using Azure OpenAI",

dotnet/samples/AGUIClientServer/AGUIDojoServer/PredictiveStateUpdates/PredictiveStateUpdatesAgent.cs

@@ -20,21 +20,21 @@ internal sealed class PredictiveStateUpdatesAgent : DelegatingAIAgent
         this._jsonSerializerOptions = jsonSerializerOptions;
     }
 
-    public override Task<AgentRunResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
+    protected override Task<AgentResponse> RunCoreAsync(IEnumerable<ChatMessage> messages, AgentSession? session = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
     {
-        return this.RunStreamingAsync(messages, thread, options, cancellationToken).ToAgentRunResponseAsync(cancellationToken);
+        return this.RunCoreStreamingAsync(messages, session, options, cancellationToken).ToAgentResponseAsync(cancellationToken);
     }
 
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    protected override async IAsyncEnumerable<AgentResponseUpdate> RunCoreStreamingAsync(
         IEnumerable<ChatMessage> messages,
-        AgentThread? thread = null,
+        AgentSession? session = null,
         AgentRunOptions? options = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         // Track the last emitted document state to avoid duplicates
         string? lastEmittedDocument = null;
 
-        await foreach (var update in this.InnerAgent.RunStreamingAsync(messages, thread, options, cancellationToken).ConfigureAwait(false))
+        await foreach (var update in this.InnerAgent.RunStreamingAsync(messages, session, options, cancellationToken).ConfigureAwait(false))
         {
             // Check if we're seeing a write_document tool call and emit predictive state
             bool hasToolCall = false;
@@ -79,7 +79,7 @@ internal sealed class PredictiveStateUpdatesAgent : DelegatingAIAgent
                         stateUpdate,
                         this._jsonSerializerOptions.GetTypeInfo(typeof(DocumentState)));
 
-                    yield return new AgentRunResponseUpdate(
+                    yield return new AgentResponseUpdate(
                         new ChatResponseUpdate(role: ChatRole.Assistant, [new DataContent(stateBytes, "application/json")])
                         {
                             MessageId = "snapshot" + Guid.NewGuid().ToString("N"),

dotnet/samples/AGUIClientServer/AGUIDojoServer/SharedState/SharedStateAgent.cs

@@ -19,21 +19,21 @@ internal sealed class SharedStateAgent : DelegatingAIAgent
         this._jsonSerializerOptions = jsonSerializerOptions;
     }
 
-    public override Task<AgentRunResponse> RunAsync(IEnumerable<ChatMessage> messages, AgentThread? thread = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
+    protected override Task<AgentResponse> RunCoreAsync(IEnumerable<ChatMessage> messages, AgentSession? session = null, AgentRunOptions? options = null, CancellationToken cancellationToken = default)
     {
-        return this.RunStreamingAsync(messages, thread, options, cancellationToken).ToAgentRunResponseAsync(cancellationToken);
+        return this.RunCoreStreamingAsync(messages, session, options, cancellationToken).ToAgentResponseAsync(cancellationToken);
     }
 
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    protected override async IAsyncEnumerable<AgentResponseUpdate> RunCoreStreamingAsync(
         IEnumerable<ChatMessage> messages,
-        AgentThread? thread = null,
+        AgentSession? session = null,
         AgentRunOptions? options = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         if (options is not ChatClientAgentRunOptions { ChatOptions.AdditionalProperties: { } properties } chatRunOptions ||
             !properties.TryGetValue("ag_ui_state", out JsonElement state))
         {
-            await foreach (var update in this.InnerAgent.RunStreamingAsync(messages, thread, options, cancellationToken).ConfigureAwait(false))
+            await foreach (var update in this.InnerAgent.RunStreamingAsync(messages, session, options, cancellationToken).ConfigureAwait(false))
             {
                 yield return update;
             }
@@ -63,8 +63,8 @@ internal sealed class SharedStateAgent : DelegatingAIAgent
 
         var firstRunMessages = messages.Append(stateUpdateMessage);
 
-        var allUpdates = new List<AgentRunResponseUpdate>();
-        await foreach (var update in this.InnerAgent.RunStreamingAsync(firstRunMessages, thread, firstRunOptions, cancellationToken).ConfigureAwait(false))
+        var allUpdates = new List<AgentResponseUpdate>();
+        await foreach (var update in this.InnerAgent.RunStreamingAsync(firstRunMessages, session, firstRunOptions, cancellationToken).ConfigureAwait(false))
         {
             allUpdates.Add(update);
 
@@ -76,14 +76,14 @@ internal sealed class SharedStateAgent : DelegatingAIAgent
             }
         }
 
-        var response = allUpdates.ToAgentRunResponse();
+        var response = allUpdates.ToAgentResponse();
 
         if (response.TryDeserialize(this._jsonSerializerOptions, out JsonElement stateSnapshot))
         {
             byte[] stateBytes = JsonSerializer.SerializeToUtf8Bytes(
                 stateSnapshot,
                 this._jsonSerializerOptions.GetTypeInfo(typeof(JsonElement)));
-            yield return new AgentRunResponseUpdate
+            yield return new AgentResponseUpdate
             {
                 Contents = [new DataContent(stateBytes, "application/json")]
             };
@@ -98,7 +98,7 @@ internal sealed class SharedStateAgent : DelegatingAIAgent
                 ChatRole.System,
                 [new TextContent("Please provide a concise summary of the state changes in at most two sentences.")]));
 
-        await foreach (var update in this.InnerAgent.RunStreamingAsync(secondRunMessages, thread, options, cancellationToken).ConfigureAwait(false))
+        await foreach (var update in this.InnerAgent.RunStreamingAsync(secondRunMessages, session, options, cancellationToken).ConfigureAwait(false))
         {
             yield return update;
         }

dotnet/samples/AGUIClientServer/AGUIServer/Program.cs

@@ -23,7 +23,7 @@ var agent = new AzureOpenAIClient(
         new Uri(endpoint),
         new DefaultAzureCredential())
     .GetChatClient(deploymentName)
-    .CreateAIAgent(
+    .AsAIAgent(
         name: "AGUIAssistant",
         tools: [
             AIFunctionFactory.Create(

dotnet/samples/AGUIClientServer/README.md

@@ -119,7 +119,7 @@ The `AGUIServer` uses the `MapAGUI` extension method to expose an agent through
 ```csharp
 AIAgent agent = new OpenAIClient(apiKey)
     .GetChatClient(model)
-    .CreateAIAgent(
+    .AsAIAgent(
         instructions: "You are a helpful assistant.",
         name: "AGUIAssistant");
 
@@ -144,16 +144,16 @@ var chatClient = new AGUIChatClient(
     modelId: "agui-client",
     jsonSerializerOptions: null);
 
-AIAgent agent = chatClient.CreateAIAgent(
+AIAgent agent = chatClient.AsAIAgent(
     instructions: null,
     name: "agui-client",
     description: "AG-UI Client Agent",
     tools: []);
 
 bool isFirstUpdate = true;
-AgentRunResponseUpdate? currentUpdate = null;
+AgentResponseUpdate? currentUpdate = null;
 
-await foreach (AgentRunResponseUpdate update in agent.RunStreamingAsync(messages, thread))
+await foreach (AgentResponseUpdate update in agent.RunStreamingAsync(messages, thread))
 {
     // First update indicates run started
     if (isFirstUpdate)
@@ -190,19 +190,19 @@ if (currentUpdate != null)
 The `RunStreamingAsync` method:
 1. Sends messages to the server via HTTP POST
 2. Receives server-sent events (SSE) stream
-3. Parses events into `AgentRunResponseUpdate` objects
+3. Parses events into `AgentResponseUpdate` objects
 4. Yields updates as they arrive for real-time display
 
 ## Key Concepts
 
 - **Thread**: Represents a conversation context that persists across multiple runs (accessed via `ConversationId` property)
 - **Run**: A single execution of the agent for a given set of messages (identified by `ResponseId` property)
-- **AgentRunResponseUpdate**: Contains the response data with:
+- **AgentResponseUpdate**: Contains the response data with:
   - `ResponseId`: The unique run identifier
   - `ConversationId`: The thread/conversation identifier
   - `Contents`: Collection of content items (TextContent, ErrorContent, etc.)
 - **Run Lifecycle**: 
-  - The **first** `AgentRunResponseUpdate` in a run indicates the run has started
+  - The **first** `AgentResponseUpdate` in a run indicates the run has started
   - Subsequent updates contain streaming content as the agent processes
-  - The **last** `AgentRunResponseUpdate` in a run indicates the run has finished
+  - The **last** `AgentResponseUpdate` in a run indicates the run has finished
   - If an error occurs, the update will contain `ErrorContent`

dotnet/samples/AGUIWebChat/README.md

@@ -74,7 +74,7 @@ AzureOpenAIClient azureOpenAIClient = new AzureOpenAIClient(
 ChatClient chatClient = azureOpenAIClient.GetChatClient(deploymentName);
 
 // Create AI agent
-ChatClientAgent agent = chatClient.AsIChatClient().CreateAIAgent(
+ChatClientAgent agent = chatClient.AsIChatClient().AsAIAgent(
     name: "ChatAssistant",
     instructions: "You are a helpful assistant.");
 
@@ -162,7 +162,7 @@ dotnet run
 Edit the instructions in `Server/Program.cs`:
 
 ```csharp
-ChatClientAgent agent = chatClient.AsIChatClient().CreateAIAgent(
+ChatClientAgent agent = chatClient.AsIChatClient().AsAIAgent(
     name: "ChatAssistant",
     instructions: "You are a helpful coding assistant specializing in C# and .NET.");
 ```

dotnet/samples/AGUIWebChat/Server/Program.cs

@@ -25,7 +25,7 @@ AzureOpenAIClient azureOpenAIClient = new(
 
 ChatClient chatClient = azureOpenAIClient.GetChatClient(deploymentName);
 
-ChatClientAgent agent = chatClient.AsIChatClient().CreateAIAgent(
+ChatClientAgent agent = chatClient.AsIChatClient().AsAIAgent(
     name: "ChatAssistant",
     instructions: "You are a helpful assistant.");
 

dotnet/samples/AgentWebChat/AgentWebChat.AgentHost/AgentWebChat.AgentHost.csproj

@@ -25,7 +25,6 @@
     <PackageReference Include="CommunityToolkit.Aspire.OllamaSharp" />
     <PackageReference Include="Microsoft.Extensions.AI" />
     <PackageReference Include="Microsoft.Extensions.AI.Abstractions" />
-    <PackageReference Include="Microsoft.Extensions.AI.AzureAIInference" />
     <PackageReference Include="Microsoft.Extensions.AI.OpenAI" />
     <PackageReference Include="Microsoft.AspNetCore.OpenAPI" />
     <PackageReference Include="Swashbuckle.AspNetCore.SwaggerUI" />

dotnet/samples/AgentWebChat/AgentWebChat.AgentHost/Program.cs

@@ -36,7 +36,7 @@ var pirateAgentBuilder = builder.AddAIAgent(
     chatClientServiceKey: "chat-model")
     .WithAITool(new CustomAITool())
     .WithAITool(new CustomFunctionTool())
-    .WithInMemoryThreadStore();
+    .WithInMemorySessionStore();
 
 var knightsKnavesAgentBuilder = builder.AddAIAgent("knights-and-knaves", (sp, key) =>
 {

dotnet/samples/AgentWebChat/AgentWebChat.AgentHost/Utilities/ChatClientExtensions.cs

@@ -1,8 +1,6 @@
 // Copyright (c) Microsoft. All rights reserved.
 
 using AgentWebChat.AgentHost.Utilities;
-using Azure;
-using Azure.AI.Inference;
 using Microsoft.Extensions.AI;
 using OllamaSharp;
 
@@ -24,7 +22,6 @@ public static class ChatClientExtensions
             ClientChatProvider.Ollama => builder.AddOllamaClient(connectionName, connectionInfo),
             ClientChatProvider.OpenAI => builder.AddOpenAIClient(connectionName, connectionInfo),
             ClientChatProvider.AzureOpenAI => builder.AddAzureOpenAIClient(connectionName).AddChatClient(connectionInfo.SelectedModel),
-            ClientChatProvider.AzureAIInference => builder.AddAzureInferenceClient(connectionName, connectionInfo),
             _ => throw new NotSupportedException($"Unsupported provider: {connectionInfo.Provider}")
         };
 
@@ -44,16 +41,6 @@ public static class ChatClientExtensions
         })
         .AddChatClient(connectionInfo.SelectedModel);
 
-    private static ChatClientBuilder AddAzureInferenceClient(this IHostApplicationBuilder builder, string connectionName, ChatClientConnectionInfo connectionInfo) =>
-        builder.Services.AddChatClient(sp =>
-        {
-            var credential = new AzureKeyCredential(connectionInfo.AccessKey!);
-
-            var client = new ChatCompletionsClient(connectionInfo.Endpoint, credential, new AzureAIInferenceClientOptions());
-
-            return client.AsIChatClient(connectionInfo.SelectedModel);
-        });
-
     private static ChatClientBuilder AddOllamaClient(this IHostApplicationBuilder builder, string connectionName, ChatClientConnectionInfo connectionInfo)
     {
         var httpKey = $"{connectionName}_http";
@@ -83,7 +70,6 @@ public static class ChatClientExtensions
             ClientChatProvider.Ollama => builder.AddKeyedOllamaClient(connectionName, connectionInfo),
             ClientChatProvider.OpenAI => builder.AddKeyedOpenAIClient(connectionName, connectionInfo),
             ClientChatProvider.AzureOpenAI => builder.AddKeyedAzureOpenAIClient(connectionName).AddKeyedChatClient(connectionName, connectionInfo.SelectedModel),
-            ClientChatProvider.AzureAIInference => builder.AddKeyedAzureInferenceClient(connectionName, connectionInfo),
             _ => throw new NotSupportedException($"Unsupported provider: {connectionInfo.Provider}")
         };
 
@@ -103,16 +89,6 @@ public static class ChatClientExtensions
         })
         .AddKeyedChatClient(connectionName, connectionInfo.SelectedModel);
 
-    private static ChatClientBuilder AddKeyedAzureInferenceClient(this IHostApplicationBuilder builder, string connectionName, ChatClientConnectionInfo connectionInfo) =>
-        builder.Services.AddKeyedChatClient(connectionName, sp =>
-        {
-            var credential = new AzureKeyCredential(connectionInfo.AccessKey!);
-
-            var client = new ChatCompletionsClient(connectionInfo.Endpoint, credential, new AzureAIInferenceClientOptions());
-
-            return client.AsIChatClient(connectionInfo.SelectedModel);
-        });
-
     private static ChatClientBuilder AddKeyedOllamaClient(this IHostApplicationBuilder builder, string connectionName, ChatClientConnectionInfo connectionInfo)
     {
         var httpKey = $"{connectionName}_http";

dotnet/samples/AgentWebChat/AgentWebChat.Web/A2AAgentClient.cs

@@ -25,19 +25,19 @@ internal sealed class A2AAgentClient : AgentClientBase
         this._uri = baseUri;
     }
 
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    public override async IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(
         string agentName,
         IList<ChatMessage> messages,
-        string? threadId = null,
+        string? sessionId = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         this._logger.LogInformation("Running agent {AgentName} with {MessageCount} messages via A2A", agentName, messages.Count);
 
         var (a2aClient, _) = this.ResolveClient(agentName);
-        var contextId = threadId ?? Guid.NewGuid().ToString("N");
+        var contextId = sessionId ?? Guid.NewGuid().ToString("N");
 
         // Convert and send messages via A2A without try-catch in yield method
-        var results = new List<AgentRunResponseUpdate>();
+        var results = new List<AgentResponseUpdate>();
 
         try
         {
@@ -60,7 +60,7 @@ internal sealed class A2AAgentClient : AgentClientBase
                 var responseMessage = message.ToChatMessage();
                 if (responseMessage is { Contents.Count: > 0 })
                 {
-                    results.Add(new AgentRunResponseUpdate(responseMessage.Role, responseMessage.Contents)
+                    results.Add(new AgentResponseUpdate(responseMessage.Role, responseMessage.Contents)
                     {
                         MessageId = message.MessageId,
                         CreatedAt = DateTimeOffset.UtcNow
@@ -90,7 +90,7 @@ internal sealed class A2AAgentClient : AgentClientBase
                                 RawRepresentation = artifact,
                             };
 
-                            results.Add(new AgentRunResponseUpdate(chatMessage.Role, chatMessage.Contents)
+                            results.Add(new AgentResponseUpdate(chatMessage.Role, chatMessage.Contents)
                             {
                                 MessageId = agentTask.Id,
                                 CreatedAt = DateTimeOffset.UtcNow
@@ -108,7 +108,7 @@ internal sealed class A2AAgentClient : AgentClientBase
         {
             this._logger.LogError(ex, "Error running agent {AgentName} via A2A", agentName);
 
-            results.Add(new AgentRunResponseUpdate(ChatRole.Assistant, $"Error: {ex.Message}")
+            results.Add(new AgentResponseUpdate(ChatRole.Assistant, $"Error: {ex.Message}")
             {
                 MessageId = Guid.NewGuid().ToString("N"),
                 CreatedAt = DateTimeOffset.UtcNow

dotnet/samples/AgentWebChat/AgentWebChat.Web/IAgentClient.cs

@@ -16,13 +16,13 @@ internal abstract class AgentClientBase
     /// </summary>
     /// <param name="agentName">The name of the agent to run.</param>
     /// <param name="messages">The messages to send to the agent.</param>
-    /// <param name="threadId">Optional thread identifier for conversation continuity.</param>
+    /// <param name="sessionId">Optional session identifier for conversation continuity.</param>
     /// <param name="cancellationToken">Cancellation token.</param>
     /// <returns>An asynchronous enumerable of agent response updates.</returns>
-    public abstract IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    public abstract IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(
         string agentName,
         IList<ChatMessage> messages,
-        string? threadId = null,
+        string? sessionId = null,
         CancellationToken cancellationToken = default);
 
     /// <summary>
@@ -34,16 +34,3 @@ internal abstract class AgentClientBase
     public virtual Task<AgentCard?> GetAgentCardAsync(string agentName, CancellationToken cancellationToken = default)
         => Task.FromResult<AgentCard?>(null);
 }
-
-/// <summary>
-/// Helper class to create a thread-like wrapper for agent clients.
-/// </summary>
-public class AgentClientThread
-{
-    public string ThreadId { get; }
-
-    public AgentClientThread(string? threadId = null)
-    {
-        this.ThreadId = threadId ?? Guid.NewGuid().ToString("N");
-    }
-}

dotnet/samples/AgentWebChat/AgentWebChat.Web/OpenAIChatCompletionsAgentClient.cs

@@ -16,10 +16,10 @@ namespace AgentWebChat.Web;
 /// </summary>
 internal sealed class OpenAIChatCompletionsAgentClient(HttpClient httpClient) : AgentClientBase
 {
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    public override async IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(
         string agentName,
         IList<ChatMessage> messages,
-        string? threadId = null,
+        string? sessionId = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         OpenAIClientOptions options = new()
@@ -31,7 +31,7 @@ internal sealed class OpenAIChatCompletionsAgentClient(HttpClient httpClient) :
         var openAiClient = new ChatClient(model: "myModel!", credential: new ApiKeyCredential("dummy-key"), options: options).AsIChatClient();
         await foreach (var update in openAiClient.GetStreamingResponseAsync(messages, cancellationToken: cancellationToken))
         {
-            yield return new AgentRunResponseUpdate(update);
+            yield return new AgentResponseUpdate(update);
         }
     }
 }

dotnet/samples/AgentWebChat/AgentWebChat.Web/OpenAIResponsesAgentClient.cs

@@ -15,10 +15,10 @@ namespace AgentWebChat.Web;
 /// </summary>
 internal sealed class OpenAIResponsesAgentClient(HttpClient httpClient) : AgentClientBase
 {
-    public override async IAsyncEnumerable<AgentRunResponseUpdate> RunStreamingAsync(
+    public override async IAsyncEnumerable<AgentResponseUpdate> RunStreamingAsync(
         string agentName,
         IList<ChatMessage> messages,
-        string? threadId = null,
+        string? sessionId = null,
         [EnumeratorCancellation] CancellationToken cancellationToken = default)
     {
         OpenAIClientOptions options = new()
@@ -27,15 +27,15 @@ internal sealed class OpenAIResponsesAgentClient(HttpClient httpClient) : AgentC
             Transport = new HttpClientPipelineTransport(httpClient)
         };
 
-        var openAiClient = new OpenAIResponseClient(model: agentName, credential: new ApiKeyCredential("dummy-key"), options: options).AsIChatClient();
+        var openAiClient = new ResponsesClient(model: agentName, credential: new ApiKeyCredential("dummy-key"), options: options).AsIChatClient();
         var chatOptions = new ChatOptions()
         {
-            ConversationId = threadId
+            ConversationId = sessionId
         };
 
         await foreach (var update in openAiClient.GetStreamingResponseAsync(messages, chatOptions, cancellationToken: cancellationToken))
         {
-            yield return new AgentRunResponseUpdate(update);
+            yield return new AgentResponseUpdate(update);
         }
     }
 }

dotnet/samples/Durable/Agents/AzureFunctions/01_SingleAgent/01_SingleAgent.csproj

@@ -36,7 +36,7 @@
   </ItemGroup>
   -->
   <ItemGroup>
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
   </ItemGroup>
 </Project>

dotnet/samples/Durable/Agents/AzureFunctions/01_SingleAgent/Program.cs

@@ -25,13 +25,13 @@ AzureOpenAIClient client = !string.IsNullOrEmpty(azureOpenAiKey)
 const string JokerName = "Joker";
 const string JokerInstructions = "You are good at telling jokes.";
 
-AIAgent agent = client.GetChatClient(deploymentName).CreateAIAgent(JokerInstructions, JokerName);
+AIAgent agent = client.GetChatClient(deploymentName).AsAIAgent(JokerInstructions, JokerName);
 
 // Configure the function app to host the AI agent.
 // This will automatically generate HTTP API endpoints for the agent.
 using IHost app = FunctionsApplication
     .CreateBuilder(args)
     .ConfigureFunctionsWebApplication()
-    .ConfigureDurableAgents(options => options.AddAIAgent(agent))
+    .ConfigureDurableAgents(options => options.AddAIAgent(agent, timeToLive: TimeSpan.FromHours(1)))
     .Build();
 app.Run();

dotnet/samples/Durable/Agents/AzureFunctions/02_AgentOrchestration_Chaining/02_AgentOrchestration_Chaining.csproj

@@ -36,7 +36,7 @@
   </ItemGroup>
   -->
   <ItemGroup>
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
   </ItemGroup>
 </Project>

dotnet/samples/Durable/Agents/AzureFunctions/02_AgentOrchestration_Chaining/FunctionTriggers.cs

@@ -19,15 +19,15 @@ public static class FunctionTriggers
     public static async Task<string> RunOrchestrationAsync([OrchestrationTrigger] TaskOrchestrationContext context)
     {
         DurableAIAgent writer = context.GetAgent("WriterAgent");
-        AgentThread writerThread = writer.GetNewThread();
+        AgentSession writerSession = await writer.GetNewSessionAsync();
 
-        AgentRunResponse<TextResponse> initial = await writer.RunAsync<TextResponse>(
+        AgentResponse<TextResponse> initial = await writer.RunAsync<TextResponse>(
             message: "Write a concise inspirational sentence about learning.",
-            thread: writerThread);
+            session: writerSession);
 
-        AgentRunResponse<TextResponse> refined = await writer.RunAsync<TextResponse>(
+        AgentResponse<TextResponse> refined = await writer.RunAsync<TextResponse>(
             message: $"Improve this further while keeping it under 25 words: {initial.Result.Text}",
-            thread: writerThread);
+            session: writerSession);
 
         return refined.Result.Text;
     }

dotnet/samples/Durable/Agents/AzureFunctions/02_AgentOrchestration_Chaining/Program.cs

@@ -21,7 +21,7 @@ AzureOpenAIClient client = !string.IsNullOrEmpty(azureOpenAiKey)
     ? new AzureOpenAIClient(new Uri(endpoint), new AzureKeyCredential(azureOpenAiKey))
     : new AzureOpenAIClient(new Uri(endpoint), new AzureCliCredential());
 
-// Single agent used by the orchestration to demonstrate sequential calls on the same thread.
+// Single agent used by the orchestration to demonstrate sequential calls on the same session.
 const string WriterName = "WriterAgent";
 const string WriterInstructions =
     """
@@ -29,7 +29,7 @@ const string WriterInstructions =
     when given an improved sentence you polish it further.
     """;
 
-AIAgent writerAgent = client.GetChatClient(deploymentName).CreateAIAgent(WriterInstructions, WriterName);
+AIAgent writerAgent = client.GetChatClient(deploymentName).AsAIAgent(WriterInstructions, WriterName);
 
 using IHost app = FunctionsApplication
     .CreateBuilder(args)

dotnet/samples/Durable/Agents/AzureFunctions/02_AgentOrchestration_Chaining/README.md

@@ -1,11 +1,11 @@
 # Single Agent Orchestration Sample
 
-This sample demonstrates how to use the Durable Agent Framework (DAFx) to create a simple Azure Functions app that orchestrates sequential calls to a single AI agent using the same conversation thread for context continuity.
+This sample demonstrates how to use the Durable Agent Framework (DAFx) to create a simple Azure Functions app that orchestrates sequential calls to a single AI agent using the same session for context continuity.
 
 ## Key Concepts Demonstrated
 
 - Orchestrating multiple interactions with the same agent in a deterministic order
-- Using the same `AgentThread` across multiple calls to maintain conversational context
+- Using the same `AgentSession` across multiple calls to maintain conversational context
 - Durable orchestration with automatic checkpointing and resumption from failures
 - HTTP API integration for starting and monitoring orchestrations
 

dotnet/samples/Durable/Agents/AzureFunctions/03_AgentOrchestration_Concurrency/03_AgentOrchestration_Concurrency.csproj

@@ -36,7 +36,7 @@
   </ItemGroup>
   -->
   <ItemGroup>
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
   </ItemGroup>
 </Project>

dotnet/samples/Durable/Agents/AzureFunctions/03_AgentOrchestration_Concurrency/FunctionTriggers.cs

@@ -26,9 +26,9 @@ public static class FunctionsTriggers
         DurableAIAgent chemist = context.GetAgent("ChemistAgent");
 
         // Start both agent runs concurrently
-        Task<AgentRunResponse<TextResponse>> physicistTask = physicist.RunAsync<TextResponse>(prompt);
+        Task<AgentResponse<TextResponse>> physicistTask = physicist.RunAsync<TextResponse>(prompt);
 
-        Task<AgentRunResponse<TextResponse>> chemistTask = chemist.RunAsync<TextResponse>(prompt);
+        Task<AgentResponse<TextResponse>> chemistTask = chemist.RunAsync<TextResponse>(prompt);
 
         // Wait for both tasks to complete using Task.WhenAll
         await Task.WhenAll(physicistTask, chemistTask);

dotnet/samples/Durable/Agents/AzureFunctions/03_AgentOrchestration_Concurrency/Program.cs

@@ -28,8 +28,8 @@ const string PhysicistInstructions = "You are an expert in physics. You answer q
 const string ChemistName = "ChemistAgent";
 const string ChemistInstructions = "You are an expert in chemistry. You answer questions from a chemistry perspective.";
 
-AIAgent physicistAgent = client.GetChatClient(deploymentName).CreateAIAgent(PhysicistInstructions, PhysicistName);
-AIAgent chemistAgent = client.GetChatClient(deploymentName).CreateAIAgent(ChemistInstructions, ChemistName);
+AIAgent physicistAgent = client.GetChatClient(deploymentName).AsAIAgent(PhysicistInstructions, PhysicistName);
+AIAgent chemistAgent = client.GetChatClient(deploymentName).AsAIAgent(ChemistInstructions, ChemistName);
 
 using IHost app = FunctionsApplication
     .CreateBuilder(args)

dotnet/samples/Durable/Agents/AzureFunctions/04_AgentOrchestration_Conditionals/04_AgentOrchestration_Conditionals.csproj

@@ -36,7 +36,7 @@
   </ItemGroup>
   -->
   <ItemGroup>
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
   </ItemGroup>
 </Project>

dotnet/samples/Durable/Agents/AzureFunctions/04_AgentOrchestration_Conditionals/FunctionTriggers.cs

@@ -21,17 +21,17 @@ public static class FunctionTriggers
 
         // Get the spam detection agent
         DurableAIAgent spamDetectionAgent = context.GetAgent("SpamDetectionAgent");
-        AgentThread spamThread = spamDetectionAgent.GetNewThread();
+        AgentSession spamSession = await spamDetectionAgent.GetNewSessionAsync();
 
         // Step 1: Check if the email is spam
-        AgentRunResponse<DetectionResult> spamDetectionResponse = await spamDetectionAgent.RunAsync<DetectionResult>(
+        AgentResponse<DetectionResult> spamDetectionResponse = await spamDetectionAgent.RunAsync<DetectionResult>(
             message:
                 $"""
                 Analyze this email for spam content and return a JSON response with 'is_spam' (boolean) and 'reason' (string) fields:
                 Email ID: {email.EmailId}
                 Content: {email.EmailContent}
                 """,
-            thread: spamThread);
+            session: spamSession);
         DetectionResult result = spamDetectionResponse.Result;
 
         // Step 2: Conditional logic based on spam detection result
@@ -43,9 +43,9 @@ public static class FunctionTriggers
 
         // Generate and send response for legitimate email
         DurableAIAgent emailAssistantAgent = context.GetAgent("EmailAssistantAgent");
-        AgentThread emailThread = emailAssistantAgent.GetNewThread();
+        AgentSession emailSession = await emailAssistantAgent.GetNewSessionAsync();
 
-        AgentRunResponse<EmailResponse> emailAssistantResponse = await emailAssistantAgent.RunAsync<EmailResponse>(
+        AgentResponse<EmailResponse> emailAssistantResponse = await emailAssistantAgent.RunAsync<EmailResponse>(
             message:
                 $"""
                     Draft a professional response to this email. Return a JSON response with a 'response' field containing the reply:
@@ -53,7 +53,7 @@ public static class FunctionTriggers
                     Email ID: {email.EmailId}
                     Content: {email.EmailContent}
                     """,
-            thread: emailThread);
+            session: emailSession);
 
         EmailResponse emailResponse = emailAssistantResponse.Result;
 

dotnet/samples/Durable/Agents/AzureFunctions/04_AgentOrchestration_Conditionals/Program.cs

@@ -29,10 +29,10 @@ const string EmailAssistantName = "EmailAssistantAgent";
 const string EmailAssistantInstructions = "You are an email assistant that helps users draft responses to emails with professionalism.";
 
 AIAgent spamDetectionAgent = client.GetChatClient(deploymentName)
-    .CreateAIAgent(SpamDetectionInstructions, SpamDetectionName);
+    .AsAIAgent(SpamDetectionInstructions, SpamDetectionName);
 
 AIAgent emailAssistantAgent = client.GetChatClient(deploymentName)
-    .CreateAIAgent(EmailAssistantInstructions, EmailAssistantName);
+    .AsAIAgent(EmailAssistantInstructions, EmailAssistantName);
 
 using IHost app = FunctionsApplication
     .CreateBuilder(args)

dotnet/samples/Durable/Agents/AzureFunctions/05_AgentOrchestration_HITL/05_AgentOrchestration_HITL.csproj

@@ -37,7 +37,7 @@
   </ItemGroup>
   -->
   <ItemGroup>
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
-    <ProjectReference Include="..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.Hosting.AzureFunctions\Microsoft.Agents.AI.Hosting.AzureFunctions.csproj" />
+    <ProjectReference Include="..\..\..\..\..\src\Microsoft.Agents.AI.OpenAI\Microsoft.Agents.AI.OpenAI.csproj" />
   </ItemGroup>
 </Project>

dotnet/samples/Durable/Agents/AzureFunctions/05_AgentOrchestration_HITL/FunctionTriggers.cs

@@ -24,15 +24,15 @@ public static class FunctionTriggers
 
         // Get the writer agent
         DurableAIAgent writerAgent = context.GetAgent("WriterAgent");
-        AgentThread writerThread = writerAgent.GetNewThread();
+        AgentSession writerSession = await writerAgent.GetNewSessionAsync();
 
         // Set initial status
         context.SetCustomStatus($"Starting content generation for topic: {input.Topic}");
 
         // Step 1: Generate initial content
-        AgentRunResponse<GeneratedContent> writerResponse = await writerAgent.RunAsync<GeneratedContent>(
+        AgentResponse<GeneratedContent> writerResponse = await writerAgent.RunAsync<GeneratedContent>(
             message: $"Write a short article about '{input.Topic}'.",
-            thread: writerThread);
+            session: writerSession);
         GeneratedContent content = writerResponse.Result;
 
         // Human-in-the-loop iteration - we set a maximum number of attempts to avoid infinite loops
@@ -81,7 +81,7 @@ public static class FunctionTriggers
                     
                     Human Feedback: {humanResponse.Feedback}
                     """,
-                thread: writerThread);
+                session: writerSession);
 
             content = writerResponse.Result;
         }

dotnet/samples/Durable/Agents/AzureFunctions/05_AgentOrchestration_HITL/Program.cs

@@ -29,7 +29,7 @@ const string WriterInstructions =
     You write engaging, informative, and well-structured content that follows best practices for readability and accuracy.
     """;
 
-AIAgent writerAgent = client.GetChatClient(deploymentName).CreateAIAgent(WriterInstructions, WriterName);
+AIAgent writerAgent = client.GetChatClient(deploymentName).AsAIAgent(WriterInstructions, WriterName);
 
 using IHost app = FunctionsApplication
     .CreateBuilder(args)