Show only On and Off for Brave Mode

app/MindWork AI Studio/Tools/ToolCallingSystem/ToolCallingImplementations/ReadWebPageTool.cs

@@ -41,7 +41,7 @@ public sealed class ReadWebPageTool(WebPageRetrievalService webPageRetrievalServ
             .Optional(TIMEOUT_SECONDS_SETTING)
             .Optional(MAX_CONTENT_CHARACTERS_SETTING)
             .Optional(ALLOWED_PRIVATE_HOSTS_SETTING)
-            .OptionalEnum(BRAVE_MODE_SETTING, BRAVE_MODE_OFF, BRAVE_MODE_ON)
+            .OptionalEnumWithDefault(BRAVE_MODE_SETTING, BRAVE_MODE_OFF, BRAVE_MODE_OFF, BRAVE_MODE_ON)
             .Build(),
 
         SystemPromptInstructions = BuildSystemPromptInstructions(BRAVE_MODE_OFF),

app/MindWork AI Studio/Tools/ToolCallingSystem/ToolSettingsFieldDefinition.cs

@@ -13,6 +13,12 @@ public sealed class ToolSettingsFieldDefinition
     [JsonPropertyName("enum")]
     public List<string> EnumValues { get; init; } = [];
 
+    /// <summary>
+    /// Value shown and saved for an optional choice when no value has been stored yet.
+    /// A choice with a default does not offer a separate "Not set" option.
+    /// </summary>
+    public string DefaultValue { get; init; } = string.Empty;
+
     /// <summary>
     /// Name of a list of options the app maintains, as an alternative to spelling them out in
     /// the enum field. See the tool settings option sources for the available names.
@@ -44,4 +50,4 @@ public sealed class ToolSettingsFieldDefinition
     public IReadOnlyList<ToolSettingsOption> GetOptions() => string.IsNullOrWhiteSpace(this.OptionSource)
         ? this.EnumValues.Select(value => new ToolSettingsOption(value, value)).ToList()
         : ToolSettingsOptionSources.Resolve(this.OptionSource);
-}
+}

app/MindWork AI Studio/Tools/ToolCallingSystem/ToolSettingsSchemaBuilder.cs

@@ -61,6 +61,9 @@ public sealed class ToolSettingsSchemaBuilder
     /// </remarks>
     public ToolSettingsSchemaBuilder OptionalEnum(string name, params string[] values) => this.Add(name, isRequired: false, enumValues: values);
 
+    public ToolSettingsSchemaBuilder OptionalEnumWithDefault(string name, string defaultValue, params string[] values) =>
+        this.Add(name, isRequired: false, enumValues: values, defaultValue: defaultValue);
+
     /// <summary>
     /// A field kept in the operating system's keyring rather than in the settings file.
     /// </summary>
@@ -74,12 +77,13 @@ public sealed class ToolSettingsSchemaBuilder
         Required = [..this.requiredNames],
     };
 
-    private ToolSettingsSchemaBuilder Add(string name, bool isRequired, string optionSource = "", bool isSecret = false, IReadOnlyList<string>? enumValues = null)
+    private ToolSettingsSchemaBuilder Add(string name, bool isRequired, string optionSource = "", bool isSecret = false, IReadOnlyList<string>? enumValues = null, string defaultValue = "")
     {
         this.properties[name] = new ToolSettingsFieldDefinition
         {
             OptionSource = optionSource,
             EnumValues = enumValues?.ToList() ?? [],
+            DefaultValue = defaultValue,
             Secret = isSecret,
             Group = this.currentGroup,
         };
@@ -89,4 +93,4 @@ public sealed class ToolSettingsSchemaBuilder
 
         return this;
     }
-}
+}