Phase 9 (partial): rename Cwd/Remote properties on hand-written types

- CopilotClientOptions.Cwd -> WorkingDirectory
- CopilotClientOptions.Remote -> EnableRemoteSessions
- McpStdioServerConfig.Cwd -> WorkingDirectory (wire name stays 'cwd')
- SessionListFilter.Cwd -> WorkingDirectory

Full CLI/server -> runtime terminology overhaul (the RuntimeConnection
discriminated config and removal of flat CliPath/CliArgs/Port/UseStdio/CliUrl
properties) is deferred — it requires substantial restructuring of the
connection-routing logic in Client.cs and warrants its own change.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: SteveSandersonMS

dotnet/README.md

@@ -79,7 +79,7 @@ new CopilotClient(CopilotClientOptions? options = null)
 - `UseStdio` - Use stdio transport instead of TCP (default: true)
 - `LogLevel` - Log level (default: "info")
 - `AutoStart` - Auto-start server (default: true)
-- `Cwd` - Working directory for the CLI process
+- `WorkingDirectory` - Working directory for the CLI process
 - `CopilotHome` - Base directory for Copilot data (session state, config, etc.). Sets `COPILOT_HOME` on the spawned CLI process. When not set, the CLI defaults to `~/.copilot`. Useful in restricted environments where only specific directories are writable. Ignored when using `CliUrl`.
 - `Environment` - Environment variables to pass to the CLI process
 - `Logger` - `ILogger` instance for SDK logging

dotnet/src/Client.cs

@@ -1384,7 +1384,7 @@ private static bool IsUnsupportedConnectMethod(RemoteRpcException ex)
             args.AddRange(["--session-idle-timeout", options.SessionIdleTimeoutSeconds.Value.ToString(CultureInfo.InvariantCulture)]);
         }
 
-        if (options.Remote)
+        if (options.EnableRemoteSessions)
         {
             args.Add("--remote");
         }
@@ -1401,7 +1401,7 @@ private static bool IsUnsupportedConnectMethod(RemoteRpcException ex)
             RedirectStandardInput = options.UseStdio == true,
             RedirectStandardOutput = true,
             RedirectStandardError = true,
-            WorkingDirectory = options.Cwd,
+            WorkingDirectory = options.WorkingDirectory,
             CreateNoWindow = true
         };
 

dotnet/src/Types.cs

@@ -127,7 +127,7 @@ protected CopilotClientOptions(CopilotClientOptions? other)
         CliArgs = (string[]?)other.CliArgs?.Clone();
         CliPath = other.CliPath;
         CliUrl = other.CliUrl;
-        Cwd = other.Cwd;
+        WorkingDirectory = other.WorkingDirectory;
         CopilotHome = other.CopilotHome;
         Environment = other.Environment;
         GitHubToken = other.GitHubToken;
@@ -141,7 +141,7 @@ protected CopilotClientOptions(CopilotClientOptions? other)
         SessionFs = other.SessionFs;
         SessionIdleTimeoutSeconds = other.SessionIdleTimeoutSeconds;
         TcpConnectionToken = other.TcpConnectionToken;
-        Remote = other.Remote;
+        EnableRemoteSessions = other.EnableRemoteSessions;
     }
 
     /// <summary>
@@ -155,7 +155,7 @@ protected CopilotClientOptions(CopilotClientOptions? other)
     /// <summary>
     /// Working directory for the CLI process.
     /// </summary>
-    public string? Cwd { get; set; }
+    public string? WorkingDirectory { get; set; }
     /// <summary>
     /// Base directory for Copilot data (session state, config, etc.).
     /// Sets the <c>COPILOT_HOME</c> environment variable on the spawned CLI process.
@@ -257,7 +257,7 @@ protected CopilotClientOptions(CopilotClientOptions? other)
     /// This option is only used when the SDK spawns the CLI process; it is ignored
     /// when connecting to an external server via <see cref="CliUrl"/>.
     /// </summary>
-    public bool Remote { get; set; }
+    public bool EnableRemoteSessions { get; set; }
 
     /// <summary>
     /// Creates a shallow clone of this <see cref="CopilotClientOptions"/> instance.
@@ -1939,7 +1939,7 @@ public sealed class McpStdioServerConfig : McpServerConfig
     /// Working directory for the server process.
     /// </summary>
     [JsonPropertyName("cwd")]
-    public string? Cwd { get; set; }
+    public string? WorkingDirectory { get; set; }
 }
 
 /// <summary>
@@ -2823,8 +2823,8 @@ public sealed class SessionContext
 /// </summary>
 public sealed class SessionListFilter
 {
-    /// <summary>Filter by exact cwd match.</summary>
-    public string? Cwd { get; set; }
+    /// <summary>Filter by exact working directory match.</summary>
+    public string? WorkingDirectory { get; set; }
     /// <summary>Filter by git root.</summary>
     public string? GitRoot { get; set; }
     /// <summary>Filter by repository (owner/repo format).</summary>

dotnet/test/E2E/ClientOptionsE2ETests.cs

@@ -42,7 +42,7 @@ public async Task Should_Use_Client_Cwd_For_Default_WorkingDirectory()
 
         await using var client = Ctx.CreateClient(options: new CopilotClientOptions
         {
-            Cwd = clientCwd,
+            WorkingDirectory = clientCwd,
         });
 
         var session = await client.CreateSessionAsync(new SessionConfig

dotnet/test/E2E/SessionMcpAndAgentConfigE2ETests.cs

@@ -269,7 +269,7 @@ public async Task Should_Pass_Literal_Env_Values_To_Mcp_Server_Subprocess()
                 Command = "node",
                 Args = [Path.Combine(testHarnessDir, "test-mcp-server.mjs")],
                 Env = new Dictionary<string, string> { ["TEST_SECRET"] = "hunter2" },
-                Cwd = testHarnessDir,
+                WorkingDirectory = testHarnessDir,
                 Tools = ["*"]
             }
         };
@@ -330,7 +330,7 @@ await File.WriteAllTextAsync(
                     "--config",
                     configPath
                 ],
-                Cwd = testHarnessDir,
+                WorkingDirectory = testHarnessDir,
                 Tools = ["*"]
             }
         };

dotnet/test/Harness/E2ETestContext.cs

@@ -212,7 +212,7 @@ public CopilotClient CreateClient(
     {
         options ??= new CopilotClientOptions();
 
-        options.Cwd ??= WorkDir;
+        options.WorkingDirectory ??= WorkDir;
         options.Environment ??= GetEnvironment();
         options.UseStdio = useStdio;
         options.Logger ??= Logger;

dotnet/test/Unit/CloneTests.cs

@@ -15,7 +15,7 @@ public void CopilotClientOptions_Clone_CopiesAllProperties()
         {
             CliPath = "/usr/bin/copilot",
             CliArgs = ["--verbose", "--debug"],
-            Cwd = "/home/user",
+            WorkingDirectory = "/home/user",
             Port = 8080,
             UseStdio = false,
             CliUrl = "http://localhost:8080",
@@ -24,15 +24,15 @@ public void CopilotClientOptions_Clone_CopiesAllProperties()
             GitHubToken = "ghp_test",
             UseLoggedInUser = false,
             CopilotHome = "/custom/copilot/home",
-            Remote = true,
+            EnableRemoteSessions = true,
             SessionIdleTimeoutSeconds = 600,
         };
 
         var clone = original.Clone();
 
         Assert.Equal(original.CliPath, clone.CliPath);
         Assert.Equal(original.CliArgs, clone.CliArgs);
-        Assert.Equal(original.Cwd, clone.Cwd);
+        Assert.Equal(original.WorkingDirectory, clone.WorkingDirectory);
         Assert.Equal(original.Port, clone.Port);
         Assert.Equal(original.UseStdio, clone.UseStdio);
         Assert.Equal(original.CliUrl, clone.CliUrl);
@@ -41,7 +41,7 @@ public void CopilotClientOptions_Clone_CopiesAllProperties()
         Assert.Equal(original.GitHubToken, clone.GitHubToken);
         Assert.Equal(original.UseLoggedInUser, clone.UseLoggedInUser);
         Assert.Equal(original.CopilotHome, clone.CopilotHome);
-        Assert.Equal(original.Remote, clone.Remote);
+        Assert.Equal(original.EnableRemoteSessions, clone.EnableRemoteSessions);
         Assert.Equal(original.SessionIdleTimeoutSeconds, clone.SessionIdleTimeoutSeconds);
     }