ClaudeDo/src/ClaudeDo.Ui/Views/Islands/Detail/TaskHeaderBar.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:vm="using:ClaudeDo.Ui.ViewModels.Islands"
             xmlns:ctl="using:ClaudeDo.Ui.Views.Controls"
             xmlns:loc="using:ClaudeDo.Ui.Localization"
             x:Class="ClaudeDo.Ui.Views.Islands.Detail.TaskHeaderBar"
             x:DataType="vm:DetailsIslandViewModel">

  <Grid ColumnDefinitions="*,Auto,Auto">

    <!-- Column 0: id badge + editable title -->
    <StackPanel Grid.Column="0" Spacing="0">
      <TextBlock Classes="meta"
                 Text="{Binding TaskIdBadge}"
                 Margin="0,0,0,4"
                 Cursor="Hand"
                 ToolTip.Tip="{loc:Tr details.copyTaskIdTip}"
                 Tapped="OnTaskIdTapped"/>
      <TextBox Text="{Binding EditableTitle, Mode=TwoWay}"
               Background="Transparent"
               BorderThickness="0"
               FontSize="{StaticResource FontSizeTaskTitle}"
               FontWeight="Medium"
               Foreground="{DynamicResource TextBrush}"
               TextWrapping="Wrap"
               AcceptsReturn="False"
               Padding="0"/>
    </StackPanel>

    <!-- Column 1: trash button (not running) -->
    <Button Grid.Column="1" Classes="icon-btn"
            Command="{Binding DeleteTaskCommand}"
            ToolTip.Tip="{loc:Tr details.deleteTaskTip}"
            IsVisible="{Binding !IsRunning}"
            VerticalAlignment="Top"
            Margin="6,0,0,0">
      <PathIcon Data="{StaticResource Icon.Trash}" Width="14" Height="14"
                Foreground="{DynamicResource BloodBrush}"/>
    </Button>

    <!-- Column 1: skull button (running) -->
    <Button Grid.Column="1" Classes="icon-btn"
            Command="{Binding StopCommand}"
            ToolTip.Tip="{loc:Tr details.killSessionTip}"
            IsVisible="{Binding IsRunning}"
            VerticalAlignment="Top"
            Margin="6,0,0,0">
      <PathIcon Data="{StaticResource Icon.Skull}" Width="14" Height="14"
                Foreground="{DynamicResource BloodBrush}"/>
    </Button>

    <!-- Column 2: gear button with agent settings flyout -->
    <Button Grid.Column="2" Classes="icon-btn"
            ToolTip.Tip="{loc:Tr details.agentSettingsTip}"
            IsEnabled="{Binding AgentSettings.IsAgentSectionEnabled}"
            VerticalAlignment="Top"
            Margin="6,0,0,0">
      <TextBlock Text="⚙" FontSize="{StaticResource FontSizeTaskTitle}"/>
      <Button.Flyout>
        <Flyout Placement="BottomEdgeAlignedRight" ShowMode="Standard">
          <StackPanel Width="340" Spacing="10" Margin="4">
            <TextBlock Text="{loc:Tr details.agentSettingsHeading}" FontWeight="SemiBold"/>

            <StackPanel Spacing="2">
              <Grid ColumnDefinitions="Auto,Auto,*,Auto" ColumnSpacing="6">
                <TextBlock Grid.Column="0" Classes="field-label" Text="{loc:Tr details.modelLabel}" VerticalAlignment="Center"/>
                <ctl:InheritedBadge Grid.Column="1" BadgeText="{Binding AgentSettings.ModelBadge}"/>
                <Button Grid.Column="3" Classes="icon-btn" Content="↺" ToolTip.Tip="{loc:Tr settings.inherit.resetToInherited}"
                        Command="{Binding AgentSettings.ResetTaskModelCommand}"/>
              </Grid>
              <ComboBox ItemsSource="{Binding AgentSettings.TaskModelOptions}"
                        SelectedItem="{Binding AgentSettings.TaskModelSelection, Mode=TwoWay}"
                        PlaceholderText="{Binding AgentSettings.ModelInheritedHint}"
                        HorizontalAlignment="Stretch"/>
            </StackPanel>

            <StackPanel Spacing="2">
              <Grid ColumnDefinitions="Auto,Auto,*,Auto" ColumnSpacing="6">
                <TextBlock Grid.Column="0" Classes="field-label" Text="{loc:Tr details.maxTurnsLabel}" VerticalAlignment="Center"/>
                <ctl:InheritedBadge Grid.Column="1" BadgeText="{Binding AgentSettings.TurnsBadge}"/>
                <Button Grid.Column="3" Classes="icon-btn" Content="↺" ToolTip.Tip="{loc:Tr settings.inherit.resetToInherited}"
                        Command="{Binding AgentSettings.ResetTaskTurnsCommand}"/>
              </Grid>
              <NumericUpDown Value="{Binding AgentSettings.TaskMaxTurns, Mode=TwoWay}"
                             PlaceholderText="{Binding AgentSettings.TurnsInheritedHint}"
                             Minimum="1" Maximum="200" Increment="1" FormatString="0"
                             HorizontalAlignment="Stretch"/>
            </StackPanel>

            <StackPanel Spacing="2">
              <TextBlock Classes="field-label" Text="{loc:Tr details.systemPromptLabel}"/>
              <TextBox Text="{Binding AgentSettings.TaskSystemPrompt, Mode=TwoWay}"
                       AcceptsReturn="True" TextWrapping="Wrap" MinHeight="70"/>
              <TextBlock Classes="meta" Opacity="0.6"
                         Text="{loc:Tr details.systemPromptPrepended}"
                         IsVisible="{Binding AgentSettings.EffectiveSystemPromptHint, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
              <TextBlock Classes="meta" Opacity="0.6" TextWrapping="Wrap"
                         Text="{Binding AgentSettings.EffectiveSystemPromptHint}"
                         IsVisible="{Binding AgentSettings.EffectiveSystemPromptHint, Converter={x:Static StringConverters.IsNotNullOrEmpty}}"/>
            </StackPanel>

            <StackPanel Spacing="2">
              <Grid ColumnDefinitions="Auto,Auto,*,Auto" ColumnSpacing="6">
                <TextBlock Grid.Column="0" Classes="field-label" Text="{loc:Tr details.agentFileLabel}" VerticalAlignment="Center"/>
                <ctl:InheritedBadge Grid.Column="1" BadgeText="{Binding AgentSettings.AgentBadge}"/>
                <Button Grid.Column="3" Classes="icon-btn" Content="↺" ToolTip.Tip="{loc:Tr settings.inherit.resetToInherited}"
                        Command="{Binding AgentSettings.ResetTaskAgentCommand}"/>
              </Grid>
              <ComboBox ItemsSource="{Binding AgentSettings.TaskAgentOptions}"
                        SelectedItem="{Binding AgentSettings.TaskSelectedAgent, Mode=TwoWay}"
                        HorizontalAlignment="Stretch">
                <ComboBox.ItemTemplate>
                  <DataTemplate>
                    <TextBlock Text="{Binding Name}"/>
                  </DataTemplate>
                </ComboBox.ItemTemplate>
              </ComboBox>
            </StackPanel>
          </StackPanel>
        </Flyout>
      </Button.Flyout>
    </Button>

  </Grid>
</UserControl>