Struct App 

pub struct App {

    pub running: bool,
    pub messages: Vec<DisplayMessage>,
    pub editor: EditorState,
    pub cwd: PathBuf,
    pub agent_handle: Option<AgentHandle>,
    pub is_streaming: bool,
    pub message_queue: Vec<QueuedMessage>,
    pub session: SessionManager,
    pub config: Config,
    pub model_name: String,
    pub thinking_level: ThinkingLevel,
    pub context_window: u32,
    pub mode: UiMode,
    pub scroll_offset: usize,
    pub auto_scroll: bool,
    pub tools_expanded: bool,
    pub tool_focus: Option<usize>,
    pub tool_focus_pinned: bool,
    pub sidebar_auto_follow: bool,
    pub ctrl_c_count: u8,
    pub needs_redraw: bool,
    pub last_esc: Option<Instant>,
    pub tick: u64,
    pub ui_rx: Option<Receiver<UiRequest>>,
    pub ask_state: Option<AskState>,
    pub ask_reply: Option<AskReply>,
    pub workflow_mode: WorkflowMode,
    pub accumulated_usage: Usage,
    pub accumulated_cost: Cost,
    pub current_context_tokens: u32,
    pub status_items: HashMap<String, String>,
    pub widgets: HashMap<String, WidgetContent>,
    pub lua_runtime: Option<Arc<Mutex<LuaRuntime>>>,
    pub sidebar: Sidebar,
    pub active_pane: Pane,
    pub sidebar_list_rect: Option<Rect>,
    pub sidebar_detail_rect: Option<Rect>,
    pub chat_surface: Option<TextSurface>,
    pub sidebar_detail_surface: Option<TextSurface>,
    pub selection: Option<SelectionState>,
    pub drag_selection: Option<SelectablePane>,
    pub turn_tracker: TurnTracker,
    pub theme: Theme,
    pub highlighter: Highlighter,
    pub model_registry: ModelRegistry,
    /* private fields */
}

Fields

running: bool

messages: Vec<DisplayMessage>

editor: EditorState

cwd: PathBuf

agent_handle: Option<AgentHandle>

is_streaming: bool

message_queue: Vec<QueuedMessage>

session: SessionManager

config: Config

model_name: String

thinking_level: ThinkingLevel

context_window: u32

mode: UiMode

scroll_offset: usize

auto_scroll: bool

tools_expanded: bool

tool_focus: Option<usize>

Index into the flattened tool call list. None means inspector follows latest.

tool_focus_pinned: bool

True once the user explicitly selects a tool; prevents new tools stealing focus.

sidebar_auto_follow: bool

True while inspector should keep live output pinned to the bottom.

ctrl_c_count: u8

needs_redraw: bool

last_esc: Option<Instant>

tick: u64

ui_rx: Option<Receiver<UiRequest>>

ask_state: Option<AskState>

ask_reply: Option<AskReply>

workflow_mode: WorkflowMode

accumulated_usage: Usage

accumulated_cost: Cost

current_context_tokens: u32

Last turn’s input tokens — best proxy for actual current context size.

status_items: HashMap<String, String>

widgets: HashMap<String, WidgetContent>

lua_runtime: Option<Arc<Mutex<LuaRuntime>>>

Lua extension runtime (for command dispatch and hot-reload).

sidebar: Sidebar

active_pane: Pane

Which pane has focus for scroll routing.

sidebar_list_rect: Option<Rect>

Sidebar list area cached from last render (for click/scroll detection).

sidebar_detail_rect: Option<Rect>

Sidebar detail area cached from last render (for click/scroll detection).

chat_surface: Option<TextSurface>

Cached selectable chat surface from last render.

sidebar_detail_surface: Option<TextSurface>

Cached selectable sidebar detail surface from last render.

selection: Option<SelectionState>

Current app-native text selection.

drag_selection: Option<SelectablePane>

Selection anchor while dragging with the mouse.

turn_tracker: TurnTracker

theme: Theme

highlighter: Highlighter

model_registry: ModelRegistry

Implementations

impl App

pub fn new( config: Config, session: SessionManager, model_registry: ModelRegistry, cwd: PathBuf, ) -> Self

pub fn load_session_messages(&mut self)

Load messages from the current session branch into display messages.

pub async fn run( &mut self, terminal: &mut InteractiveTerminal, ) -> Result<(), Box<dyn Error>>

pub fn terminal_title(&self) -> String

pub fn handle_agent_event(&mut self, event: AgentEvent)