Sync upstream claude-code v2.1.77: add --name flag, Opus/Sonnet 4.6 models, update submodule

Co-authored-by: KSemenenko <4385716+KSemenenko@users.noreply.github.com>

Author: Copilot

ClaudeCodeSharpSDK.Tests/Unit/ClaudeExecTests.cs

@@ -34,6 +34,8 @@ public class ClaudeExecTests
     private const string HealthCheckInput = "Health check";
     private const string HooksKey = "hooks";
     private const string InputFormatFlag = "--input-format";
+    private const string NameFlag = "--name";
+    private const string SessionNameValue = "my-session";
     private const string MaxBudgetFlag = "--max-budget-usd";
     private const string MaxBudgetValue = "0.25";
     private const string McpConfigFlag = "--mcp-config";
@@ -206,6 +208,33 @@ public async Task BuildCommandArgs_WithReservedAdditionalCliFlag_Throws()
         await Assert.That(exception!.Message).Contains(ReservedOutputFormatFlag);
     }
 
+    [Test]
+    public async Task BuildCommandArgs_WithSessionName_IncludesNameFlag()
+    {
+        var exec = new ClaudeExec(executablePath: TestConstants.ClaudeExecutablePath);
+
+        var commandArgs = exec.BuildCommandArgs(new ClaudeExecArgs
+        {
+            Input = SummarizeInput,
+            SessionName = SessionNameValue,
+        });
+
+        await Assert.That(GetRequiredFlagValue(commandArgs, NameFlag)).IsEqualTo(SessionNameValue);
+    }
+
+    [Test]
+    public async Task BuildCommandArgs_WithoutSessionName_DoesNotIncludeNameFlag()
+    {
+        var exec = new ClaudeExec(executablePath: TestConstants.ClaudeExecutablePath);
+
+        var commandArgs = exec.BuildCommandArgs(new ClaudeExecArgs
+        {
+            Input = SummarizeInput,
+        });
+
+        await Assert.That(FindFlagIndex(commandArgs, NameFlag)).IsEqualTo(-1);
+    }
+
     private static JsonObject CreateBaseSettings()
     {
         return new JsonObject

ClaudeCodeSharpSDK/Execution/ClaudeExec.cs

@@ -38,6 +38,7 @@ public sealed class ClaudeExec
     private const string ContinueFlag = "--continue";
     private const string ResumeFlag = "--resume";
     private const string SessionIdFlag = "--session-id";
+    private const string NameFlag = "--name";
     private const string ForkSessionFlag = "--fork-session";
     private const string NoSessionPersistenceFlag = "--no-session-persistence";
     private const string MaxBudgetUsdFlag = "--max-budget-usd";
@@ -227,6 +228,12 @@ internal IReadOnlyList<string> BuildCommandArgs(ClaudeExecArgs args)
             commandArgs.Add(args.SessionId);
         }
 
+        if (!string.IsNullOrWhiteSpace(args.SessionName))
+        {
+            commandArgs.Add(NameFlag);
+            commandArgs.Add(args.SessionName);
+        }
+
         if (args.ForkSession)
         {
             commandArgs.Add(ForkSessionFlag);

ClaudeCodeSharpSDK/Execution/ClaudeExecArgs.cs

@@ -47,6 +47,8 @@ public sealed record ClaudeExecArgs
 
     public string? SessionId { get; init; }
 
+    public string? SessionName { get; init; }
+
     public bool ForkSession { get; init; }
 
     public bool NoSessionPersistence { get; init; }

ClaudeCodeSharpSDK/Models/ClaudeModels.cs

@@ -10,11 +10,13 @@ public static class ClaudeModels
     private const string ClaudeHaiku35DisplayName = "Claude Haiku 3.5";
     private const string ClaudeHaiku35SnapshotDisplayName = "Claude Haiku 3.5 (2024-10-22)";
     private const string ClaudeHaiku3DisplayName = "Claude Haiku 3";
+    private const string ClaudeOpus46AliasDisplayName = "Claude Opus 4.6";
     private const string ClaudeOpus45AliasDisplayName = "Claude Opus 4.5";
     private const string ClaudeOpus45SnapshotDisplayName = "Claude Opus 4.5 (2025-11-01)";
     private const string ClaudeOpus41AliasDisplayName = "Claude Opus 4.1";
     private const string ClaudeOpus41SnapshotDisplayName = "Claude Opus 4.1 (2025-08-05)";
     private const string ClaudeOpus40DisplayName = "Claude Opus 4";
+    private const string ClaudeSonnet46AliasDisplayName = "Claude Sonnet 4.6";
     private const string ClaudeSonnet45DisplayName = "Claude Sonnet 4.5";
     private const string ClaudeSonnet45SnapshotDisplayName = "Claude Sonnet 4.5 (2025-09-29)";
     private const string ClaudeSonnet40DisplayName = "Claude Sonnet 4";
@@ -34,6 +36,8 @@ public static class ClaudeModels
     public const string ClaudeSonnet45 = "claude-sonnet-4-5-20250929";
     public const string ClaudeHaiku45Alias = "claude-haiku-4-5";
     public const string ClaudeHaiku45 = "claude-haiku-4-5-20251001";
+    public const string ClaudeOpus46Alias = "claude-opus-4-6";
+    public const string ClaudeSonnet46Alias = "claude-sonnet-4-6";
     public const string ClaudeOpus45Alias = "claude-opus-4-5";
     public const string ClaudeOpus45 = "claude-opus-4-5-20251101";
     public const string ClaudeOpus41Alias = "claude-opus-4-1";
@@ -56,6 +60,8 @@ public static class ClaudeModels
         new(Sonnet, Sonnet, LatestSonnetDescription, true),
         new(Opus, Opus, LatestOpusDescription, true),
         new(Haiku, Haiku, LatestHaikuDescription, true),
+        new(ClaudeOpus46Alias, ClaudeOpus46AliasDisplayName, null, true),
+        new(ClaudeSonnet46Alias, ClaudeSonnet46AliasDisplayName, null, true),
         new(ClaudeSonnet45Alias, ClaudeSonnet45DisplayName, null, true),
         new(ClaudeSonnet45, ClaudeSonnet45SnapshotDisplayName, null, true),
         new(ClaudeHaiku45Alias, ClaudeHaiku45DisplayName, null, true),