chore: publish from main

cookbook/copilot-sdk/dotnet/recipe/README.md

@@ -26,6 +26,7 @@ dotnet run <filename>.cs
 | Persisting Sessions  | `dotnet run persisting-sessions.cs`  | Save and resume sessions across restarts   |
 | Accessibility Report ℹ️ | `dotnet run accessibility-report.cs` | Analyzes web page accessibility            |
 | Ralph Loop ⚠️         | `dotnet run ralph-loop.cs`           | Autonomous development loop                |
+| In-Process Runtime   | `dotnet run in-process-runtime.cs`  | Runs the Copilot runtime in-process         |
 
 ### Examples with Arguments
 

cookbook/copilot-sdk/dotnet/recipe/accessibility-report.cs

@@ -31,7 +31,7 @@ Console.WriteLine("Please wait...\n");
 // Create a session with Playwright MCP server
 await using var session = await client.CreateSessionAsync(new SessionConfig
 {
-  Model = "claude-opus-4.6",
+  Model = "auto",
   Streaming = true,
   OnPermissionRequest = PermissionHandler.ApproveAll,
   McpServers = new Dictionary<string, McpServerConfig>()
@@ -49,7 +49,7 @@ await using var session = await client.CreateSessionAsync(new SessionConfig
 // Wait for response using session.idle event
 var done = new TaskCompletionSource();
 
-session.On(evt =>
+session.On<SessionEvent>(evt =>
 {
   switch (evt)
   {

cookbook/copilot-sdk/dotnet/recipe/error-handling.cs

@@ -11,12 +11,12 @@ try
     await client.StartAsync();
     var session = await client.CreateSessionAsync(new SessionConfig
     {
-        Model = "gpt-5",
+        Model = "auto",
         OnPermissionRequest = PermissionHandler.ApproveAll
     });
 
     var done = new TaskCompletionSource<string>();
-    session.On(evt =>
+    session.On<SessionEvent>(evt =>
     {
         if (evt is AssistantMessageEvent msg)
         {

cookbook/copilot-sdk/dotnet/recipe/in-process-runtime.cs

@@ -0,0 +1,38 @@
+#:package GitHub.Copilot.SDK@*
+#:property PublishAot=false
+
+// The GitHub.Copilot.SDK package exposes the GitHub.Copilot namespace.
+using GitHub.Copilot;
+
+// RuntimeConnection.ForInProcess() is an experimental API (diagnostic GHCP001):
+// it loads the native Copilot runtime directly into this process instead of
+// launching a separate Copilot CLI process.
+#pragma warning disable GHCP001
+
+var client = new CopilotClient(new CopilotClientOptions
+{
+    Connection = RuntimeConnection.ForInProcess()
+});
+
+try
+{
+    await client.StartAsync();
+
+    var session = await client.CreateSessionAsync(new SessionConfig
+    {
+        Model = "auto",
+        OnPermissionRequest = PermissionHandler.ApproveAll
+    });
+
+    var response = await session.SendAndWaitAsync(
+        new MessageOptions { Prompt = "Hello from the in-process runtime!" });
+    Console.WriteLine(response?.Data.Content);
+
+    await session.DisposeAsync();
+}
+finally
+{
+    // Gracefully stop; the native runtime library itself stays loaded for the
+    // lifetime of the process (see the "Lifecycle behavior" notes in the docs).
+    await client.StopAsync();
+}

cookbook/copilot-sdk/dotnet/recipe/managing-local-files.cs

@@ -11,14 +11,14 @@ await client.StartAsync();
 // Define tools for file operations
 var session = await client.CreateSessionAsync(new SessionConfig
 {
-    Model = "gpt-5",
+    Model = "auto",
     OnPermissionRequest = PermissionHandler.ApproveAll
 });
 
 // Wait for completion
 var done = new TaskCompletionSource();
 
-session.On(evt =>
+session.On<SessionEvent>(evt =>
 {
     switch (evt)
     {

cookbook/copilot-sdk/dotnet/recipe/multiple-sessions.cs

@@ -7,20 +7,22 @@ using GitHub.Copilot;
 await using var client = new CopilotClient();
 await client.StartAsync();
 
-// Create multiple independent sessions
+// Create multiple independent sessions. Most sessions should let Copilot pick the
+// best model automatically; pin an explicit model only when you have a deliberate
+// reason to (e.g. an A/B comparison, as with session3 here).
 var session1 = await client.CreateSessionAsync(new SessionConfig
 {
-    Model = "gpt-5",
+    Model = "auto",
     OnPermissionRequest = PermissionHandler.ApproveAll
 });
 var session2 = await client.CreateSessionAsync(new SessionConfig
 {
-    Model = "gpt-5",
+    Model = "auto",
     OnPermissionRequest = PermissionHandler.ApproveAll
 });
 var session3 = await client.CreateSessionAsync(new SessionConfig
 {
-    Model = "claude-sonnet-4.5",
+    Model = "claude-sonnet-5",
     OnPermissionRequest = PermissionHandler.ApproveAll
 });
 

cookbook/copilot-sdk/dotnet/recipe/persisting-sessions.cs

@@ -11,7 +11,7 @@ await client.StartAsync();
 var session = await client.CreateSessionAsync(new SessionConfig
 {
     SessionId = "user-123-conversation",
-    Model = "gpt-5",
+    Model = "auto",
     OnPermissionRequest = PermissionHandler.ApproveAll
 });
 

cookbook/copilot-sdk/dotnet/recipe/pr-visualization.cs

@@ -132,7 +132,7 @@ await client.StartAsync();
 
 var session = await client.CreateSessionAsync(new SessionConfig
 {
-    Model = "gpt-5",
+    Model = "auto",
     OnPermissionRequest = PermissionHandler.ApproveAll,
     SystemMessage = new SystemMessageConfig
     {

cookbook/copilot-sdk/dotnet/recipe/ralph-loop.cs

@@ -45,7 +45,7 @@ try
         var session = await client.CreateSessionAsync(
             new SessionConfig
             {
-                Model = "gpt-5.1-codex-mini",
+                Model = "gpt-5.3-codex",
                 // Pin the agent to the project directory
                 WorkingDirectory = Environment.CurrentDirectory,
                 // Auto-approve tool calls for unattended operation
@@ -55,7 +55,7 @@ try
         try
         {
             var done = new TaskCompletionSource<string>();
-            session.On(evt =>
+            session.On<SessionEvent>(evt =>
             {
                 // Log tool usage for visibility
                 if (evt is ToolExecutionStartEvent toolStart)