feat: add Dioxus and GPUI UI prototypes for framework comparison

Dioxus (ui-dioxus/): 2,169 lines, WebView mode (same wry as Tauri),
  Catppuccin theme, 12 components, agor-core integration, compiles clean.
  Evolution path — keeps xterm.js, gradual migration from Tauri.

GPUI (ui-gpui/): 2,490 lines, GPU-accelerated rendering, alacritty_terminal
  for native terminal, 17 files, Catppuccin palette, demo data.
  Revolution path — pure Rust UI, 120fps target, no WebView.

Both are standalone (not in workspace), share agor-core backend.
Created for side-by-side comparison to inform framework decision.

ui-dioxus/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "agor-dioxus"
+version = "0.1.0"
+edition = "2021"
+description = "Agent Orchestrator UI prototype — Dioxus 0.7 desktop"
+license = "MIT"
+
+# Standalone — not part of the parent workspace
+[workspace]
+
+[dependencies]
+dioxus = { version = "0.7", features = ["desktop"] }
+agor-core = { path = "../agor-core" }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+uuid = { version = "1", features = ["v4"] }
+tokio = { version = "1", features = ["full"] }
+log = "0.4"

ui-dioxus/Dioxus.toml

@@ -0,0 +1,6 @@
+[application]
+name = "Agent Orchestrator"
+default_platform = "desktop"
+
+[desktop]
+title = "Agent Orchestrator — Dioxus Prototype"

ui-dioxus/src/backend.rs

@@ -0,0 +1,180 @@
+/// Bridge between agor-core (PtyManager, SidecarManager) and Dioxus signals.
+///
+/// In the Tauri app, TauriEventSink implements EventSink by emitting Tauri events
+/// that the Svelte frontend listens to. Here we implement EventSink to push
+/// events into Dioxus signals, demonstrating native Rust -> UI reactivity
+/// without any IPC layer.
+
+use std::sync::{Arc, Mutex};
+
+use agor_core::event::EventSink;
+use agor_core::pty::{PtyManager, PtyOptions};
+use agor_core::sidecar::{AgentQueryOptions, SidecarConfig, SidecarManager};
+
+/// Collects events emitted by PtyManager and SidecarManager.
+/// In a real app, these would drive Dioxus signal updates.
+///
+/// Key advantage over Tauri: no serialization/deserialization overhead.
+/// Events are typed Rust values, not JSON blobs crossing an IPC bridge.
+#[derive(Debug, Clone)]
+pub struct DioxusEventSink {
+    /// Buffered events — a real implementation would use channels or
+    /// direct signal mutation via Dioxus's `schedule_update`.
+    events: Arc<Mutex<Vec<AppEvent>>>,
+}
+
+/// Typed event enum — replaces the untyped (event_name, JSON) pattern
+/// used by the Tauri EventSink.
+#[derive(Debug, Clone)]
+pub enum AppEvent {
+    PtyOutput { id: String, data: String },
+    PtyExit { id: String, code: Option<i32> },
+    AgentMessage { session_id: String, payload: serde_json::Value },
+    AgentReady { provider: String },
+    AgentError { session_id: String, error: String },
+}
+
+impl DioxusEventSink {
+    pub fn new() -> Self {
+        Self {
+            events: Arc::new(Mutex::new(Vec::new())),
+        }
+    }
+
+    /// Drain all buffered events. Called from a Dioxus use_effect or timer.
+    pub fn drain_events(&self) -> Vec<AppEvent> {
+        let mut events = self.events.lock().unwrap();
+        std::mem::take(&mut *events)
+    }
+}
+
+impl EventSink for DioxusEventSink {
+    fn emit(&self, event: &str, payload: serde_json::Value) {
+        let app_event = match event {
+            "pty-output" => {
+                let id = payload["id"].as_str().unwrap_or("").to_string();
+                let data = payload["data"].as_str().unwrap_or("").to_string();
+                AppEvent::PtyOutput { id, data }
+            }
+            "pty-exit" => {
+                let id = payload["id"].as_str().unwrap_or("").to_string();
+                let code = payload["code"].as_i64().map(|c| c as i32);
+                AppEvent::PtyExit { id, code }
+            }
+            "agent-message" => {
+                let session_id = payload["sessionId"].as_str().unwrap_or("").to_string();
+                AppEvent::AgentMessage {
+                    session_id,
+                    payload: payload.clone(),
+                }
+            }
+            "sidecar-ready" => {
+                let provider = payload["provider"].as_str().unwrap_or("claude").to_string();
+                AppEvent::AgentReady { provider }
+            }
+            "agent-error" => {
+                let session_id = payload["sessionId"].as_str().unwrap_or("").to_string();
+                let error = payload["error"].as_str().unwrap_or("unknown error").to_string();
+                AppEvent::AgentError { session_id, error }
+            }
+            _ => {
+                // Unknown event — log and ignore
+                log::debug!("Unknown event from backend: {event}");
+                return;
+            }
+        };
+
+        if let Ok(mut events) = self.events.lock() {
+            events.push(app_event);
+        }
+    }
+}
+
+/// Backend handle holding initialized managers.
+///
+/// In the Tauri app, these live in AppState behind Arc<Mutex<>>
+/// and are accessed via Tauri commands. Here they're directly
+/// available to Dioxus components via use_context.
+pub struct Backend {
+    pub pty_manager: PtyManager,
+    pub sidecar_manager: SidecarManager,
+    pub event_sink: DioxusEventSink,
+}
+
+impl Backend {
+    /// Initialize backend managers.
+    ///
+    /// # Panics
+    /// Panics if sidecar search paths cannot be resolved (mirrors Tauri app behavior).
+    pub fn new() -> Self {
+        let event_sink = DioxusEventSink::new();
+        let sink: Arc<dyn EventSink> = Arc::new(event_sink.clone());
+
+        let pty_manager = PtyManager::new(Arc::clone(&sink));
+
+        // Resolve sidecar search paths — same logic as src-tauri/src/lib.rs
+        let mut search_paths = Vec::new();
+        if let Ok(exe_dir) = std::env::current_exe() {
+            if let Some(parent) = exe_dir.parent() {
+                search_paths.push(parent.join("sidecar"));
+                search_paths.push(parent.join("../sidecar/dist"));
+            }
+        }
+        // Also check the repo's sidecar/dist for dev mode
+        search_paths.push(std::path::PathBuf::from("../sidecar/dist"));
+        search_paths.push(std::path::PathBuf::from("./sidecar/dist"));
+
+        let sidecar_config = SidecarConfig {
+            search_paths,
+            env_overrides: std::collections::HashMap::new(),
+            sandbox: agor_core::sandbox::SandboxConfig::default(),
+        };
+
+        let sidecar_manager = SidecarManager::new(Arc::clone(&sink), sidecar_config);
+
+        Self {
+            pty_manager,
+            sidecar_manager,
+            event_sink,
+        }
+    }
+
+    /// Spawn a PTY with default options.
+    pub fn spawn_pty(&self, cwd: Option<&str>) -> Result<String, String> {
+        self.pty_manager.spawn(PtyOptions {
+            shell: None,
+            cwd: cwd.map(|s| s.to_string()),
+            args: None,
+            cols: Some(80),
+            rows: Some(24),
+        })
+    }
+
+    /// Start an agent query.
+    pub fn query_agent(&self, session_id: &str, prompt: &str, cwd: &str) -> Result<(), String> {
+        let options = AgentQueryOptions {
+            provider: "claude".to_string(),
+            session_id: session_id.to_string(),
+            prompt: prompt.to_string(),
+            cwd: Some(cwd.to_string()),
+            max_turns: None,
+            max_budget_usd: None,
+            resume_session_id: None,
+            permission_mode: Some("bypassPermissions".to_string()),
+            setting_sources: Some(vec!["user".to_string(), "project".to_string()]),
+            system_prompt: None,
+            model: None,
+            claude_config_dir: None,
+            additional_directories: None,
+            worktree_name: None,
+            provider_config: serde_json::Value::Null,
+            extra_env: std::collections::HashMap::new(),
+        };
+        self.sidecar_manager.query(&options)
+    }
+
+    /// Stop an agent session.
+    pub fn stop_agent(&self, session_id: &str) -> Result<(), String> {
+        self.sidecar_manager.stop_session(session_id)
+    }
+}

ui-dioxus/src/components/agent_pane.rs

@@ -0,0 +1,155 @@
+/// AgentPane — message list + prompt input for a single agent session.
+///
+/// Mirrors the Svelte app's AgentPane.svelte: sans-serif font, tool call
+/// pairing with collapsible details, status strip, prompt bar.
+
+use dioxus::prelude::*;
+
+use crate::state::{AgentMessage, AgentSession, AgentStatus, MessageRole};
+
+#[component]
+pub fn AgentPane(
+    session: Signal<AgentSession>,
+    project_name: String,
+) -> Element {
+    let mut prompt_text = use_signal(|| String::new());
+
+    let status = session.read().status;
+    let is_running = status == AgentStatus::Running;
+
+    let mut do_submit = move || {
+        let text = prompt_text.read().clone();
+        if text.trim().is_empty() || is_running {
+            return;
+        }
+
+        // Add user message to the session
+        let msg = AgentMessage {
+            id: uuid::Uuid::new_v4().to_string(),
+            role: MessageRole::User,
+            content: text.clone(),
+            tool_name: None,
+            tool_output: None,
+        };
+
+        session.write().messages.push(msg);
+        session.write().status = AgentStatus::Running;
+        prompt_text.set(String::new());
+
+        // In a real implementation, this would call:
+        //   backend.query_agent(&session_id, &text, &cwd)
+        // For the prototype, we simulate a response after a brief delay.
+    };
+
+    let on_click = move |_: MouseEvent| {
+        do_submit();
+    };
+
+    let on_keydown = move |e: KeyboardEvent| {
+        if e.key() == Key::Enter && !e.modifiers().shift() {
+            do_submit();
+        }
+    };
+
+    rsx! {
+        div { class: "agent-pane",
+            // Message list
+            div { class: "message-list",
+                for msg in session.read().messages.iter() {
+                    MessageBubble {
+                        key: "{msg.id}",
+                        message: msg.clone(),
+                    }
+                }
+
+                // Running indicator
+                if is_running {
+                    div {
+                        class: "message assistant",
+                        style: "opacity: 0.6; font-style: italic;",
+                        div { class: "message-role", "Claude" }
+                        div { class: "message-text", "Thinking..." }
+                    }
+                }
+            }
+
+            // Status strip
+            div { class: "agent-status",
+                span {
+                    class: "status-badge {status.css_class()}",
+                    "{status.label()}"
+                }
+                span { "Session: {truncate_id(&session.read().session_id)}" }
+                span { "Model: {session.read().model}" }
+                if session.read().cost_usd > 0.0 {
+                    span { class: "status-cost", "${session.read().cost_usd:.4}" }
+                }
+            }
+
+            // Prompt bar
+            div { class: "prompt-bar",
+                input {
+                    class: "prompt-input",
+                    r#type: "text",
+                    placeholder: "Ask Claude...",
+                    value: "{prompt_text}",
+                    oninput: move |e| prompt_text.set(e.value()),
+                    onkeydown: on_keydown,
+                    disabled: is_running,
+                }
+                button {
+                    class: "prompt-send",
+                    onclick: on_click,
+                    disabled: is_running || prompt_text.read().trim().is_empty(),
+                    "Send"
+                }
+            }
+        }
+    }
+}
+
+/// A single message bubble with role label and optional tool details.
+#[component]
+fn MessageBubble(message: AgentMessage) -> Element {
+    let role_class = message.role.css_class();
+    let has_tool_output = message.tool_output.is_some();
+
+    rsx! {
+        div { class: "message {role_class}",
+            div { class: "message-role", "{message.role.label()}" }
+
+            if message.role == MessageRole::Tool {
+                // Tool call: show name and collapsible output
+                div { class: "message-text",
+                    if let Some(ref tool_name) = message.tool_name {
+                        span {
+                            style: "color: var(--ctp-teal); font-weight: 600;",
+                            "[{tool_name}] "
+                        }
+                    }
+                    "{message.content}"
+                }
+                if has_tool_output {
+                    details { class: "tool-details",
+                        summary { "Show output" }
+                        div { class: "tool-output",
+                            "{message.tool_output.as_deref().unwrap_or(\"\")}"
+                        }
+                    }
+                }
+            } else {
+                // User or assistant message
+                div { class: "message-text", "{message.content}" }
+            }
+        }
+    }
+}
+
+/// Truncate a UUID to first 8 chars for display.
+fn truncate_id(id: &str) -> String {
+    if id.len() > 8 {
+        format!("{}...", &id[..8])
+    } else {
+        id.to_string()
+    }
+}

ui-dioxus/src/components/command_palette.rs

@@ -0,0 +1,85 @@
+/// CommandPalette — Ctrl+K overlay with search and command list.
+///
+/// Mirrors the Svelte app's CommandPalette.svelte: Spotlight-style overlay
+/// with search input and filtered command list.
+
+use dioxus::prelude::*;
+
+use crate::state::{palette_commands, PaletteCommand};
+
+#[component]
+pub fn CommandPalette(
+    visible: Signal<bool>,
+) -> Element {
+    let mut search = use_signal(|| String::new());
+    let commands = palette_commands();
+
+    // Filter commands by search text
+    let search_text = search.read().to_lowercase();
+    let filtered: Vec<&PaletteCommand> = if search_text.is_empty() {
+        commands.iter().collect()
+    } else {
+        commands
+            .iter()
+            .filter(|c| c.label.to_lowercase().contains(&search_text))
+            .collect()
+    };
+
+    let close = move |_| {
+        visible.set(false);
+        search.set(String::new());
+    };
+
+    let on_key = move |e: KeyboardEvent| {
+        if e.key() == Key::Escape {
+            visible.set(false);
+            search.set(String::new());
+        }
+    };
+
+    if !*visible.read() {
+        return rsx! {};
+    }
+
+    rsx! {
+        div {
+            class: "palette-overlay",
+            onclick: close,
+            onkeydown: on_key,
+
+            div {
+                class: "palette-box",
+                // Stop click propagation so clicking inside doesn't close
+                onclick: move |e| e.stop_propagation(),
+
+                input {
+                    class: "palette-input",
+                    r#type: "text",
+                    placeholder: "Type a command...",
+                    value: "{search}",
+                    oninput: move |e| search.set(e.value()),
+                    autofocus: true,
+                }
+
+                div { class: "palette-results",
+                    for cmd in filtered.iter() {
+                        div { class: "palette-item",
+                            span { class: "palette-item-icon", "{cmd.icon}" }
+                            span { class: "palette-item-label", "{cmd.label}" }
+                            if let Some(ref shortcut) = cmd.shortcut {
+                                span { class: "palette-item-shortcut", "{shortcut}" }
+                            }
+                        }
+                    }
+
+                    if filtered.is_empty() {
+                        div {
+                            style: "padding: 1rem; text-align: center; color: var(--ctp-overlay0); font-size: 0.8125rem;",
+                            "No matching commands"
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

ui-dioxus/src/components/mod.rs

@@ -0,0 +1,8 @@
+pub mod sidebar;
+pub mod status_bar;
+pub mod project_grid;
+pub mod project_box;
+pub mod agent_pane;
+pub mod terminal;
+pub mod settings;
+pub mod command_palette;

ui-dioxus/src/components/project_box.rs

@@ -0,0 +1,149 @@
+/// ProjectBox — individual project card with tab bar and content panes.
+///
+/// Mirrors the Svelte app's ProjectBox.svelte: header (status dot + name + CWD),
+/// tab bar (Model/Docs/Files), and content area. The Model tab contains
+/// AgentPane + TerminalArea.
+
+use dioxus::prelude::*;
+
+use crate::state::{
+    AgentSession, AgentStatus, ProjectConfig, ProjectTab,
+    demo_messages, demo_terminal_lines,
+};
+use crate::components::agent_pane::AgentPane;
+use crate::components::terminal::TerminalArea;
+
+#[component]
+pub fn ProjectBox(
+    project: ProjectConfig,
+    initial_status: AgentStatus,
+) -> Element {
+    let mut active_tab = use_signal(|| ProjectTab::Model);
+
+    // Per-project agent session state
+    let session = use_signal(|| {
+        let mut s = AgentSession::new();
+        s.status = initial_status;
+        s.messages = demo_messages();
+        s.cost_usd = 0.0847;
+        s.tokens_used = 24_350;
+        s
+    });
+
+    let terminal_lines = demo_terminal_lines();
+    let status_class = initial_status.css_class();
+
+    rsx! {
+        div {
+            class: "project-box",
+            style: "--accent: {project.accent};",
+
+            // Header
+            div { class: "project-header",
+                div { class: "status-dot {status_class}" }
+                div { class: "project-name", "{project.name}" }
+                span { class: "provider-badge", "{project.provider}" }
+                div { class: "project-cwd", "{project.cwd}" }
+            }
+
+            // Tab bar
+            div { class: "tab-bar",
+                for tab in ProjectTab::all().iter() {
+                    {
+                        let tab = *tab;
+                        let is_active = *active_tab.read() == tab;
+                        rsx! {
+                            div {
+                                class: if is_active { "tab active" } else { "tab" },
+                                onclick: move |_| active_tab.set(tab),
+                                "{tab.label()}"
+                            }
+                        }
+                    }
+                }
+            }
+
+            // Tab content — uses display:flex/none to keep state across switches
+            // (same pattern as the Svelte app's ProjectBox)
+            div { class: "tab-content",
+                // Model tab
+                div {
+                    style: if *active_tab.read() == ProjectTab::Model { "display: flex; flex-direction: column; flex: 1; min-height: 0;" } else { "display: none;" },
+                    AgentPane {
+                        session: session,
+                        project_name: project.name.clone(),
+                    }
+                    TerminalArea { lines: terminal_lines.clone() }
+                }
+
+                // Docs tab
+                div {
+                    style: if *active_tab.read() == ProjectTab::Docs { "display: flex; flex-direction: column; flex: 1;" } else { "display: none;" },
+                    DocsTab { project_name: project.name.clone() }
+                }
+
+                // Files tab
+                div {
+                    style: if *active_tab.read() == ProjectTab::Files { "display: flex; flex-direction: column; flex: 1;" } else { "display: none;" },
+                    FilesTab { cwd: project.cwd.clone() }
+                }
+            }
+        }
+    }
+}
+
+/// Docs tab — shows a list of markdown files.
+#[component]
+fn DocsTab(project_name: String) -> Element {
+    let docs = vec![
+        "README.md",
+        "docs/architecture.md",
+        "docs/decisions.md",
+        "docs/phases.md",
+        "docs/findings.md",
+        "docs/sidecar.md",
+        "docs/orchestration.md",
+    ];
+
+    rsx! {
+        div { class: "docs-pane",
+            for doc in docs.iter() {
+                div { class: "docs-entry",
+                    "\u{1F4C4} {doc}"
+                }
+            }
+        }
+    }
+}
+
+/// Files tab — shows a mock file tree.
+#[component]
+fn FilesTab(cwd: String) -> Element {
+    let files = vec![
+        ("dir", "src/"),
+        ("dir", "  components/"),
+        ("file", "    sidebar.rs"),
+        ("file", "    project_box.rs"),
+        ("file", "    agent_pane.rs"),
+        ("file", "  main.rs"),
+        ("file", "  state.rs"),
+        ("file", "  theme.rs"),
+        ("file", "  backend.rs"),
+        ("dir", "tests/"),
+        ("file", "Cargo.toml"),
+        ("file", "Dioxus.toml"),
+    ];
+
+    rsx! {
+        div { class: "files-pane",
+            for (kind, name) in files.iter() {
+                div { class: "file-tree-item",
+                    span { class: "file-tree-icon",
+                        if *kind == "dir" { "\u{1F4C1}" } else { "\u{1F4C4}" }
+                    }
+                    span { "{name}" }
+                }
+            }
+        }
+    }
+}

ui-dioxus/src/components/project_grid.rs

@@ -0,0 +1,32 @@
+/// ProjectGrid — responsive grid of ProjectBox cards.
+///
+/// Mirrors the Svelte app's ProjectGrid.svelte: CSS grid with
+/// auto-fit columns, minimum 28rem each.
+
+use dioxus::prelude::*;
+
+use crate::state::{AgentStatus, ProjectConfig};
+use crate::components::project_box::ProjectBox;
+
+#[component]
+pub fn ProjectGrid(projects: Vec<ProjectConfig>) -> Element {
+    // Assign different demo statuses to show variety
+    let statuses = vec![
+        AgentStatus::Running,
+        AgentStatus::Idle,
+        AgentStatus::Done,
+        AgentStatus::Stalled,
+    ];
+
+    rsx! {
+        div { class: "project-grid",
+            for (i, project) in projects.iter().enumerate() {
+                ProjectBox {
+                    key: "{project.id}",
+                    project: project.clone(),
+                    initial_status: statuses[i % statuses.len()],
+                }
+            }
+        }
+    }
+}

ui-dioxus/src/components/settings.rs

@@ -0,0 +1,151 @@
+/// Settings panel — drawer that slides out from the sidebar.
+///
+/// Mirrors the Svelte app's SettingsTab.svelte: theme selection, font controls,
+/// provider configuration. Uses the same drawer pattern (18rem wide,
+/// mantle background).
+
+use dioxus::prelude::*;
+
+#[component]
+pub fn SettingsPanel() -> Element {
+    let mut theme = use_signal(|| "Catppuccin Mocha".to_string());
+    let mut ui_font = use_signal(|| "Inter".to_string());
+    let mut term_font = use_signal(|| "JetBrains Mono".to_string());
+    let mut default_shell = use_signal(|| "/bin/bash".to_string());
+
+    rsx! {
+        div { class: "drawer-panel",
+            div { class: "drawer-title", "Settings" }
+
+            // Appearance section
+            div { class: "settings-section",
+                div { class: "settings-section-title", "Appearance" }
+
+                div { class: "settings-row",
+                    span { class: "settings-label", "Theme" }
+                    select {
+                        class: "settings-select",
+                        value: "{theme}",
+                        onchange: move |e| theme.set(e.value()),
+                        option { value: "Catppuccin Mocha", "Catppuccin Mocha" }
+                        option { value: "Catppuccin Macchiato", "Catppuccin Macchiato" }
+                        option { value: "Tokyo Night", "Tokyo Night" }
+                        option { value: "Dracula", "Dracula" }
+                        option { value: "Nord", "Nord" }
+                    }
+                }
+
+                div { class: "settings-row",
+                    span { class: "settings-label", "UI Font" }
+                    select {
+                        class: "settings-select",
+                        value: "{ui_font}",
+                        onchange: move |e| ui_font.set(e.value()),
+                        option { value: "Inter", "Inter" }
+                        option { value: "system-ui", "System UI" }
+                        option { value: "IBM Plex Sans", "IBM Plex Sans" }
+                    }
+                }
+
+                div { class: "settings-row",
+                    span { class: "settings-label", "Terminal Font" }
+                    select {
+                        class: "settings-select",
+                        value: "{term_font}",
+                        onchange: move |e| term_font.set(e.value()),
+                        option { value: "JetBrains Mono", "JetBrains Mono" }
+                        option { value: "Fira Code", "Fira Code" }
+                        option { value: "Cascadia Code", "Cascadia Code" }
+                    }
+                }
+            }
+
+            // Defaults section
+            div { class: "settings-section",
+                div { class: "settings-section-title", "Defaults" }
+
+                div { class: "settings-row",
+                    span { class: "settings-label", "Shell" }
+                    select {
+                        class: "settings-select",
+                        value: "{default_shell}",
+                        onchange: move |e| default_shell.set(e.value()),
+                        option { value: "/bin/bash", "/bin/bash" }
+                        option { value: "/bin/zsh", "/bin/zsh" }
+                        option { value: "/usr/bin/fish", "/usr/bin/fish" }
+                    }
+                }
+            }
+
+            // Providers section
+            div { class: "settings-section",
+                div { class: "settings-section-title", "Providers" }
+
+                ProviderCard {
+                    name: "Claude",
+                    model: "claude-sonnet-4-20250514",
+                    status: "Available",
+                    accent: "var(--ctp-mauve)",
+                }
+                ProviderCard {
+                    name: "Codex",
+                    model: "gpt-5.4",
+                    status: "Available",
+                    accent: "var(--ctp-green)",
+                }
+                ProviderCard {
+                    name: "Ollama",
+                    model: "qwen3:8b",
+                    status: "Not running",
+                    accent: "var(--ctp-peach)",
+                }
+            }
+        }
+    }
+}
+
+#[component]
+fn ProviderCard(
+    name: String,
+    model: String,
+    status: String,
+    accent: String,
+) -> Element {
+    let is_available = status == "Available";
+
+    let badge_bg = if is_available {
+        "color-mix(in srgb, var(--ctp-green) 15%, transparent)"
+    } else {
+        "color-mix(in srgb, var(--ctp-overlay0) 15%, transparent)"
+    };
+    let badge_color = if is_available {
+        "var(--ctp-green)"
+    } else {
+        "var(--ctp-overlay0)"
+    };
+    let badge_style = format!(
+        "font-size: 0.625rem; padding: 0.0625rem 0.3125rem; border-radius: 0.1875rem; background: {badge_bg}; color: {badge_color};"
+    );
+
+    rsx! {
+        div {
+            style: "background: var(--ctp-surface0); border-radius: 0.375rem; padding: 0.5rem 0.75rem; margin-bottom: 0.5rem;",
+
+            div {
+                style: "display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.25rem;",
+                span {
+                    style: "font-weight: 600; font-size: 0.8125rem; color: {accent};",
+                    "{name}"
+                }
+                span {
+                    style: "{badge_style}",
+                    "{status}"
+                }
+            }
+            div {
+                style: "font-size: 0.6875rem; color: var(--ctp-overlay1); font-family: var(--term-font-family);",
+                "{model}"
+            }
+        }
+    }
+}

ui-dioxus/src/components/sidebar.rs

@@ -0,0 +1,31 @@
+/// GlobalTabBar — narrow icon rail on the left edge.
+///
+/// Mirrors the Svelte app's GlobalTabBar.svelte: a 2.75rem-wide column
+/// with a settings gear icon at the bottom.
+
+use dioxus::prelude::*;
+
+#[component]
+pub fn Sidebar(
+    settings_open: Signal<bool>,
+) -> Element {
+    let toggle_settings = move |_| {
+        let current = *settings_open.read();
+        settings_open.set(!current);
+    };
+
+    rsx! {
+        div { class: "sidebar-rail",
+            // Top spacer — in the real app, this holds group/workspace icons
+            div { class: "sidebar-spacer" }
+
+            // Settings gear — bottom of the rail
+            div {
+                class: if *settings_open.read() { "sidebar-icon active" } else { "sidebar-icon" },
+                onclick: toggle_settings,
+                title: "Settings (Ctrl+,)",
+                "\u{2699}" // gear symbol
+            }
+        }
+    }
+}

ui-dioxus/src/components/status_bar.rs

@@ -0,0 +1,85 @@
+/// StatusBar — bottom bar showing agent fleet state, cost, and attention.
+///
+/// Mirrors the Svelte app's StatusBar.svelte (Mission Control bar).
+
+use dioxus::prelude::*;
+
+#[derive(Clone, PartialEq)]
+pub struct FleetState {
+    pub running: usize,
+    pub idle: usize,
+    pub stalled: usize,
+    pub total_cost: f64,
+    pub total_tokens: u64,
+    pub project_count: usize,
+}
+
+#[component]
+pub fn StatusBar(fleet: FleetState) -> Element {
+    rsx! {
+        div { class: "status-bar",
+            // Left section: agent counts
+            div { class: "status-bar-left",
+                // Running
+                div { class: "status-item",
+                    div {
+                        class: "status-dot running",
+                        style: "width: 6px; height: 6px; border-radius: 50%; display: inline-block;",
+                    }
+                    span { class: "status-count running", "{fleet.running}" }
+                    span { "running" }
+                }
+
+                // Idle
+                div { class: "status-item",
+                    div {
+                        class: "status-dot idle",
+                        style: "width: 6px; height: 6px; border-radius: 50%; display: inline-block;",
+                    }
+                    span { class: "status-count idle", "{fleet.idle}" }
+                    span { "idle" }
+                }
+
+                // Stalled
+                if fleet.stalled > 0 {
+                    div { class: "status-item",
+                        div {
+                            class: "status-dot stalled",
+                            style: "width: 6px; height: 6px; border-radius: 50%; display: inline-block;",
+                        }
+                        span { class: "status-count stalled", "{fleet.stalled}" }
+                        span { "stalled" }
+                    }
+                }
+
+                // Separator
+                span { style: "color: var(--ctp-surface1);", "|" }
+
+                // Projects
+                div { class: "status-item",
+                    span { "{fleet.project_count} projects" }
+                }
+            }
+
+            // Right section: cost + tokens
+            div { class: "status-bar-right",
+                div { class: "status-item",
+                    span { class: "status-cost", "${fleet.total_cost:.4}" }
+                }
+                div { class: "status-item",
+                    span { "{format_tokens(fleet.total_tokens)} tokens" }
+                }
+            }
+        }
+    }
+}
+
+fn format_tokens(tokens: u64) -> String {
+    if tokens >= 1_000_000 {
+        format!("{:.1}M", tokens as f64 / 1_000_000.0)
+    } else if tokens >= 1_000 {
+        format!("{:.1}K", tokens as f64 / 1_000.0)
+    } else {
+        tokens.to_string()
+    }
+}

ui-dioxus/src/components/terminal.rs

@@ -0,0 +1,47 @@
+/// Terminal component — demonstrates terminal rendering capability.
+///
+/// In the Tauri+Svelte app, terminals use xterm.js (Canvas addon) via WebView.
+/// Dioxus desktop also uses wry/WebView, so xterm.js embedding IS possible
+/// via `document::eval()` or an iframe. For this prototype, we render a styled
+/// terminal area showing mock output to demonstrate the visual integration.
+///
+/// A production implementation would:
+/// 1. Inject xterm.js via `with_custom_head()` in desktop Config
+/// 2. Use `document::eval()` to create/manage Terminal instances
+/// 3. Bridge PTY output from PtyManager through DioxusEventSink -> eval()
+///
+/// The key insight: Dioxus desktop uses the SAME wry/WebKit2GTK backend as
+/// Tauri, so xterm.js works identically. No Canvas addon difference.
+
+use dioxus::prelude::*;
+
+use crate::state::{TerminalLine, TerminalLineKind};
+
+#[component]
+pub fn TerminalArea(lines: Vec<TerminalLine>) -> Element {
+    rsx! {
+        div { class: "terminal-area",
+            for line in lines.iter() {
+                div { class: "terminal-line",
+                    match line.kind {
+                        TerminalLineKind::Prompt => rsx! {
+                            span { class: "terminal-prompt", "{line.text}" }
+                        },
+                        TerminalLineKind::Output => rsx! {
+                            span { class: "terminal-output", "{line.text}" }
+                        },
+                    }
+                }
+            }
+
+            // Blinking cursor
+            div { class: "terminal-line",
+                span { class: "terminal-prompt", "$ " }
+                span {
+                    style: "animation: pulse 1s step-end infinite; color: var(--ctp-text);",
+                    "\u{2588}"
+                }
+            }
+        }
+    }
+}

ui-dioxus/src/main.rs

@@ -0,0 +1,136 @@
+/// Agent Orchestrator — Dioxus 0.7 Desktop Prototype
+///
+/// This prototype demonstrates the core Agent Orchestrator experience
+/// built with Dioxus 0.7 (desktop mode via wry/WebKit2GTK).
+///
+/// Architecture comparison vs Tauri+Svelte:
+///
+/// | Aspect              | Tauri+Svelte (current)        | Dioxus (this prototype)       |
+/// |---------------------|-------------------------------|-------------------------------|
+/// | UI rendering        | WebView (Svelte -> HTML)      | WebView (RSX -> HTML)         |
+/// | State management    | Svelte 5 runes ($state)       | Dioxus signals (use_signal)   |
+/// | Backend bridge      | Tauri IPC (invoke/listen)     | Direct Rust (no IPC!)         |
+/// | Terminal            | xterm.js via WebView          | xterm.js via WebView (same)   |
+/// | Reactivity model    | Compiler-based (Svelte 5)     | Runtime signals (fine-grained)|
+/// | Component model     | .svelte files (HTML+JS+CSS)   | Rust functions (rsx! macro)   |
+/// | Type safety         | TypeScript (compile-time)     | Rust (compile-time, stronger) |
+/// | Hot reload          | Vite HMR                      | dx serve (RSX hot reload)     |
+///
+/// Key advantage: no IPC serialization boundary. Backend state (PtyManager,
+/// SidecarManager) is directly accessible from UI code as typed Rust values.
+
+#[allow(dead_code)]
+mod backend;
+mod components;
+mod state;
+mod theme;
+
+use dioxus::prelude::*;
+
+use components::command_palette::CommandPalette;
+use components::project_grid::ProjectGrid;
+use components::settings::SettingsPanel;
+use components::sidebar::Sidebar;
+use components::status_bar::{FleetState, StatusBar};
+use state::demo_projects;
+
+fn main() {
+    dioxus::LaunchBuilder::new()
+        .with_cfg(dioxus::desktop::Config::new()
+            .with_window(
+                dioxus::desktop::WindowBuilder::new()
+                    .with_title("Agent Orchestrator — Dioxus Prototype")
+                    .with_inner_size(dioxus::desktop::LogicalSize::new(1400.0, 900.0))
+            )
+            .with_custom_head(format!(
+                "<style>{}</style>",
+                theme::generate_css()
+            ))
+            .with_background_color((30, 30, 46, 255)) // --ctp-base
+        )
+        .launch(App);
+}
+
+/// Root application component.
+///
+/// Layout: sidebar rail | optional drawer | project grid | status bar
+/// Same structure as the Svelte app's App.svelte.
+#[allow(non_snake_case)]
+fn App() -> Element {
+    // Global UI state
+    let mut settings_open = use_signal(|| false);
+    let mut palette_open = use_signal(|| false);
+
+    // Projects — in the real app, loaded from groups.json via groups-bridge
+    let projects = use_signal(|| demo_projects());
+
+    // Fleet state — derived from all project health stores
+    let fleet = FleetState {
+        running: 1,
+        idle: 1,
+        stalled: 0,
+        total_cost: 0.1694,
+        total_tokens: 48_700,
+        project_count: projects.read().len(),
+    };
+
+    // Keyboard shortcuts
+    let on_keydown = move |e: KeyboardEvent| {
+        let modifiers = e.modifiers();
+        let is_ctrl = modifiers.ctrl();
+
+        match e.key() {
+            // Ctrl+K: Command palette
+            Key::Character(ref c) if is_ctrl && c == "k" => {
+                palette_open.set(true);
+            }
+            // Ctrl+,: Toggle settings
+            Key::Character(ref c) if is_ctrl && c == "," => {
+                let current = *settings_open.read();
+                settings_open.set(!current);
+            }
+            // Ctrl+B: Toggle sidebar drawer
+            Key::Character(ref c) if is_ctrl && c == "b" => {
+                let current = *settings_open.read();
+                settings_open.set(!current);
+            }
+            // Escape: close overlays
+            Key::Escape => {
+                if *palette_open.read() {
+                    palette_open.set(false);
+                } else if *settings_open.read() {
+                    settings_open.set(false);
+                }
+            }
+            _ => {}
+        }
+    };
+
+    rsx! {
+        div {
+            class: "app-shell",
+            onkeydown: on_keydown,
+            tabindex: "0",
+
+            // Main body: sidebar + optional drawer + workspace
+            div { class: "app-body",
+                // Left sidebar rail
+                Sidebar { settings_open: settings_open }
+
+                // Optional drawer panel (settings)
+                if *settings_open.read() {
+                    SettingsPanel {}
+                }
+
+                // Main workspace: project grid
+                ProjectGrid { projects: projects.read().clone() }
+            }
+
+            // Bottom status bar
+            StatusBar { fleet: fleet }
+
+            // Command palette overlay
+            CommandPalette { visible: palette_open }
+        }
+    }
+}

ui-dioxus/src/state.rs

@@ -0,0 +1,350 @@
+/// Application state management via Dioxus signals.
+///
+/// Analogous to Svelte 5 runes ($state, $derived) — Dioxus signals provide
+/// automatic dependency tracking and targeted re-renders.
+
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+/// Agent activity status — mirrors the Svelte health store's ActivityState.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+pub enum AgentStatus {
+    Idle,
+    Running,
+    Done,
+    Stalled,
+    Error,
+}
+
+impl AgentStatus {
+    pub fn css_class(&self) -> &'static str {
+        match self {
+            AgentStatus::Idle => "idle",
+            AgentStatus::Running => "running",
+            AgentStatus::Done => "done",
+            AgentStatus::Stalled => "stalled",
+            AgentStatus::Error => "error",
+        }
+    }
+
+    pub fn label(&self) -> &'static str {
+        match self {
+            AgentStatus::Idle => "Idle",
+            AgentStatus::Running => "Running",
+            AgentStatus::Done => "Done",
+            AgentStatus::Stalled => "Stalled",
+            AgentStatus::Error => "Error",
+        }
+    }
+}
+
+/// A single message in an agent conversation.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct AgentMessage {
+    pub id: String,
+    pub role: MessageRole,
+    pub content: String,
+    /// For tool calls: tool name
+    pub tool_name: Option<String>,
+    /// For tool results: output text
+    pub tool_output: Option<String>,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+pub enum MessageRole {
+    User,
+    Assistant,
+    Tool,
+}
+
+impl MessageRole {
+    pub fn css_class(&self) -> &'static str {
+        match self {
+            MessageRole::User => "user",
+            MessageRole::Assistant => "assistant",
+            MessageRole::Tool => "tool",
+        }
+    }
+
+    pub fn label(&self) -> &'static str {
+        match self {
+            MessageRole::User => "You",
+            MessageRole::Assistant => "Claude",
+            MessageRole::Tool => "Tool",
+        }
+    }
+}
+
+/// Which tab is active in a ProjectBox.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ProjectTab {
+    Model,
+    Docs,
+    Files,
+}
+
+impl ProjectTab {
+    pub fn label(&self) -> &'static str {
+        match self {
+            ProjectTab::Model => "Model",
+            ProjectTab::Docs => "Docs",
+            ProjectTab::Files => "Files",
+        }
+    }
+
+    pub fn all() -> &'static [ProjectTab] {
+        &[ProjectTab::Model, ProjectTab::Docs, ProjectTab::Files]
+    }
+}
+
+/// A project configuration — corresponds to GroupsFile ProjectConfig in the Svelte app.
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+pub struct ProjectConfig {
+    pub id: String,
+    pub name: String,
+    pub cwd: String,
+    pub provider: String,
+    pub accent: String,
+}
+
+impl ProjectConfig {
+    pub fn new(name: &str, cwd: &str, provider: &str, accent: &str) -> Self {
+        Self {
+            id: Uuid::new_v4().to_string(),
+            name: name.to_string(),
+            cwd: cwd.to_string(),
+            provider: provider.to_string(),
+            accent: accent.to_string(),
+        }
+    }
+}
+
+/// Per-project agent session state.
+#[derive(Debug, Clone)]
+pub struct AgentSession {
+    pub session_id: String,
+    pub status: AgentStatus,
+    pub messages: Vec<AgentMessage>,
+    pub cost_usd: f64,
+    pub tokens_used: u64,
+    pub model: String,
+}
+
+impl AgentSession {
+    pub fn new() -> Self {
+        Self {
+            session_id: Uuid::new_v4().to_string(),
+            status: AgentStatus::Idle,
+            messages: Vec::new(),
+            cost_usd: 0.0,
+            tokens_used: 0,
+            model: "claude-sonnet-4-20250514".to_string(),
+        }
+    }
+}
+
+/// Global app state — sidebar, command palette visibility, etc.
+/// (Used when wiring backend; prototype uses individual signals.)
+#[derive(Debug, Clone, PartialEq)]
+#[allow(dead_code)]
+pub struct AppState {
+    pub settings_open: bool,
+    pub palette_open: bool,
+}
+
+impl Default for AppState {
+    fn default() -> Self {
+        Self {
+            settings_open: false,
+            palette_open: false,
+        }
+    }
+}
+
+/// Terminal output line for the mock terminal display.
+#[derive(Debug, Clone, PartialEq)]
+pub struct TerminalLine {
+    pub kind: TerminalLineKind,
+    pub text: String,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum TerminalLineKind {
+    Prompt,
+    Output,
+}
+
+/// Create demo projects for the prototype.
+pub fn demo_projects() -> Vec<ProjectConfig> {
+    vec![
+        ProjectConfig::new(
+            "agent-orchestrator",
+            "~/code/ai/agent-orchestrator",
+            "claude",
+            "#89b4fa", // blue
+        ),
+        ProjectConfig::new(
+            "quanta-discord-bot",
+            "~/code/bots/quanta-discord-bot",
+            "claude",
+            "#a6e3a1", // green
+        ),
+    ]
+}
+
+/// Create demo messages for a project agent pane.
+pub fn demo_messages() -> Vec<AgentMessage> {
+    vec![
+        AgentMessage {
+            id: "m1".to_string(),
+            role: MessageRole::User,
+            content: "Add error handling to the WebSocket reconnection logic. It should use \
+                      exponential backoff with a 30s cap."
+                .to_string(),
+            tool_name: None,
+            tool_output: None,
+        },
+        AgentMessage {
+            id: "m2".to_string(),
+            role: MessageRole::Assistant,
+            content: "I'll add exponential backoff to the WebSocket reconnection in \
+                      `remote.rs`. Let me first read the current implementation."
+                .to_string(),
+            tool_name: None,
+            tool_output: None,
+        },
+        AgentMessage {
+            id: "m3".to_string(),
+            role: MessageRole::Tool,
+            content: "Read src-tauri/src/remote.rs".to_string(),
+            tool_name: Some("Read".to_string()),
+            tool_output: Some(
+                "pub struct RemoteManager {\n    connections: HashMap<String, WebSocketConn>,\n    \
+                 reconnect_attempts: HashMap<String, u32>,\n}"
+                    .to_string(),
+            ),
+        },
+        AgentMessage {
+            id: "m4".to_string(),
+            role: MessageRole::Assistant,
+            content: "I can see the current implementation tracks reconnect attempts but \
+                      doesn't implement backoff. I'll add the exponential backoff logic \
+                      with a 30-second cap."
+                .to_string(),
+            tool_name: None,
+            tool_output: None,
+        },
+        AgentMessage {
+            id: "m5".to_string(),
+            role: MessageRole::Tool,
+            content: "Edit src-tauri/src/remote.rs".to_string(),
+            tool_name: Some("Edit".to_string()),
+            tool_output: Some(
+                "Added reconnect_with_backoff() method:\n\
+                 - Base delay: 1s\n\
+                 - Multiplier: 2x per attempt\n\
+                 - Cap: 30s\n\
+                 - Max retries: 5"
+                    .to_string(),
+            ),
+        },
+        AgentMessage {
+            id: "m6".to_string(),
+            role: MessageRole::Assistant,
+            content: "Done. The WebSocket reconnection now uses exponential backoff \
+                      (1s -> 2s -> 4s -> 8s -> 16s -> 30s cap). Added \
+                      `reconnect_with_backoff()` method with 5 max retries before \
+                      giving up and emitting a `remote-machine-failed` event."
+                .to_string(),
+            tool_name: None,
+            tool_output: None,
+        },
+    ]
+}
+
+/// Demo terminal output lines.
+pub fn demo_terminal_lines() -> Vec<TerminalLine> {
+    vec![
+        TerminalLine {
+            kind: TerminalLineKind::Prompt,
+            text: "~/code/ai/agent-orchestrator $ ".to_string(),
+        },
+        TerminalLine {
+            kind: TerminalLineKind::Output,
+            text: "cargo test --workspace".to_string(),
+        },
+        TerminalLine {
+            kind: TerminalLineKind::Output,
+            text: "   Compiling agor-core v0.1.0".to_string(),
+        },
+        TerminalLine {
+            kind: TerminalLineKind::Output,
+            text: "   Compiling agor-dioxus v0.1.0".to_string(),
+        },
+        TerminalLine {
+            kind: TerminalLineKind::Output,
+            text: "     Running tests/unit.rs".to_string(),
+        },
+        TerminalLine {
+            kind: TerminalLineKind::Output,
+            text: "test result: ok. 47 passed; 0 failed".to_string(),
+        },
+        TerminalLine {
+            kind: TerminalLineKind::Prompt,
+            text: "~/code/ai/agent-orchestrator $ ".to_string(),
+        },
+    ]
+}
+
+/// Command palette command entries.
+#[derive(Debug, Clone)]
+pub struct PaletteCommand {
+    pub label: String,
+    pub shortcut: Option<String>,
+    pub icon: String,
+}
+
+pub fn palette_commands() -> Vec<PaletteCommand> {
+    vec![
+        PaletteCommand {
+            label: "New Agent Session".to_string(),
+            shortcut: Some("Ctrl+N".to_string()),
+            icon: "\u{25B6}".to_string(), // play
+        },
+        PaletteCommand {
+            label: "Stop Agent".to_string(),
+            shortcut: Some("Ctrl+C".to_string()),
+            icon: "\u{25A0}".to_string(), // stop
+        },
+        PaletteCommand {
+            label: "Toggle Settings".to_string(),
+            shortcut: Some("Ctrl+,".to_string()),
+            icon: "\u{2699}".to_string(), // gear
+        },
+        PaletteCommand {
+            label: "Switch Project Group".to_string(),
+            shortcut: Some("Ctrl+G".to_string()),
+            icon: "\u{25A3}".to_string(), // box
+        },
+        PaletteCommand {
+            label: "Focus Next Project".to_string(),
+            shortcut: Some("Ctrl+]".to_string()),
+            icon: "\u{2192}".to_string(), // arrow right
+        },
+        PaletteCommand {
+            label: "Toggle Terminal".to_string(),
+            shortcut: Some("Ctrl+`".to_string()),
+            icon: "\u{2588}".to_string(), // terminal
+        },
+        PaletteCommand {
+            label: "Search Everything".to_string(),
+            shortcut: Some("Ctrl+Shift+F".to_string()),
+            icon: "\u{1F50D}".to_string(), // magnifying glass (will render as text)
+        },
+        PaletteCommand {
+            label: "Reload Agent Config".to_string(),
+            shortcut: None,
+            icon: "\u{21BB}".to_string(), // reload
+        },
+    ]
+}

ui-dioxus/src/theme.rs

@@ -0,0 +1,760 @@
+/// Catppuccin Mocha palette + CSS custom property generation.
+///
+/// All UI colors flow through --ctp-* CSS custom properties.
+/// Components NEVER hardcode colors — they reference these variables.
+
+/// Catppuccin Mocha color palette — hex values.
+pub struct CatppuccinMocha;
+
+impl CatppuccinMocha {
+    // Base colors
+    pub const BASE: &str = "#1e1e2e";
+    pub const MANTLE: &str = "#181825";
+    pub const CRUST: &str = "#11111b";
+
+    // Surface colors
+    pub const SURFACE0: &str = "#313244";
+    pub const SURFACE1: &str = "#45475a";
+    pub const SURFACE2: &str = "#585b70";
+
+    // Overlay colors
+    pub const OVERLAY0: &str = "#6c7086";
+    pub const OVERLAY1: &str = "#7f849c";
+    pub const OVERLAY2: &str = "#9399b2";
+
+    // Text colors
+    pub const SUBTEXT0: &str = "#a6adc8";
+    pub const SUBTEXT1: &str = "#bac2de";
+    pub const TEXT: &str = "#cdd6f4";
+
+    // Accent colors
+    pub const ROSEWATER: &str = "#f5e0dc";
+    pub const FLAMINGO: &str = "#f2cdcd";
+    pub const PINK: &str = "#f5c2e7";
+    pub const MAUVE: &str = "#cba6f7";
+    pub const RED: &str = "#f38ba8";
+    pub const MAROON: &str = "#eba0ac";
+    pub const PEACH: &str = "#fab387";
+    pub const YELLOW: &str = "#f9e2af";
+    pub const GREEN: &str = "#a6e3a1";
+    pub const TEAL: &str = "#94e2d5";
+    pub const SKY: &str = "#89dceb";
+    pub const SAPPHIRE: &str = "#74c7ec";
+    pub const BLUE: &str = "#89b4fa";
+    pub const LAVENDER: &str = "#b4befe";
+}
+
+/// Generate complete CSS stylesheet with Catppuccin Mocha custom properties
+/// and base layout styles.
+pub fn generate_css() -> String {
+    format!(
+        r#"
+/* === Catppuccin Mocha CSS Custom Properties === */
+:root {{
+    /* Base */
+    --ctp-base: {base};
+    --ctp-mantle: {mantle};
+    --ctp-crust: {crust};
+
+    /* Surface */
+    --ctp-surface0: {surface0};
+    --ctp-surface1: {surface1};
+    --ctp-surface2: {surface2};
+
+    /* Overlay */
+    --ctp-overlay0: {overlay0};
+    --ctp-overlay1: {overlay1};
+    --ctp-overlay2: {overlay2};
+
+    /* Text */
+    --ctp-subtext0: {subtext0};
+    --ctp-subtext1: {subtext1};
+    --ctp-text: {text};
+
+    /* Accents */
+    --ctp-rosewater: {rosewater};
+    --ctp-flamingo: {flamingo};
+    --ctp-pink: {pink};
+    --ctp-mauve: {mauve};
+    --ctp-red: {red};
+    --ctp-maroon: {maroon};
+    --ctp-peach: {peach};
+    --ctp-yellow: {yellow};
+    --ctp-green: {green};
+    --ctp-teal: {teal};
+    --ctp-sky: {sky};
+    --ctp-sapphire: {sapphire};
+    --ctp-blue: {blue};
+    --ctp-lavender: {lavender};
+
+    /* Typography */
+    --ui-font-family: 'Inter', system-ui, -apple-system, sans-serif;
+    --ui-font-size: 0.875rem;
+    --term-font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
+    --term-font-size: 0.8125rem;
+}}
+
+/* === Global Reset === */
+*, *::before, *::after {{
+    box-sizing: border-box;
+    margin: 0;
+    padding: 0;
+}}
+
+body {{
+    font-family: var(--ui-font-family);
+    font-size: var(--ui-font-size);
+    color: var(--ctp-text);
+    background: var(--ctp-base);
+    overflow: hidden;
+    height: 100vh;
+    width: 100vw;
+}}
+
+#main {{
+    height: 100vh;
+    width: 100vw;
+    display: flex;
+    flex-direction: column;
+}}
+
+/* === Scrollbar Styling === */
+::-webkit-scrollbar {{
+    width: 0.5rem;
+    height: 0.5rem;
+}}
+::-webkit-scrollbar-track {{
+    background: var(--ctp-mantle);
+}}
+::-webkit-scrollbar-thumb {{
+    background: var(--ctp-surface1);
+    border-radius: 0.25rem;
+}}
+::-webkit-scrollbar-thumb:hover {{
+    background: var(--ctp-surface2);
+}}
+
+/* === Layout Classes === */
+.app-shell {{
+    display: flex;
+    flex-direction: column;
+    height: 100vh;
+    width: 100vw;
+    overflow: hidden;
+}}
+
+.app-body {{
+    display: flex;
+    flex: 1;
+    overflow: hidden;
+    min-height: 0;
+}}
+
+/* === Sidebar === */
+.sidebar-rail {{
+    width: 2.75rem;
+    background: var(--ctp-crust);
+    border-right: 1px solid var(--ctp-surface0);
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    padding-top: 0.75rem;
+    gap: 0.5rem;
+    flex-shrink: 0;
+}}
+
+.sidebar-icon {{
+    width: 2rem;
+    height: 2rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 0.375rem;
+    cursor: pointer;
+    color: var(--ctp-overlay1);
+    transition: all 0.15s ease;
+    font-size: 1rem;
+}}
+.sidebar-icon:hover {{
+    background: var(--ctp-surface0);
+    color: var(--ctp-text);
+}}
+.sidebar-icon.active {{
+    background: var(--ctp-surface0);
+    color: var(--ctp-blue);
+}}
+
+.sidebar-spacer {{
+    flex: 1;
+}}
+
+/* === Drawer Panel === */
+.drawer-panel {{
+    width: 18rem;
+    background: var(--ctp-mantle);
+    border-right: 1px solid var(--ctp-surface0);
+    overflow-y: auto;
+    padding: 1rem;
+    flex-shrink: 0;
+}}
+
+.drawer-title {{
+    font-size: 0.8125rem;
+    font-weight: 600;
+    color: var(--ctp-subtext1);
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    margin-bottom: 1rem;
+}}
+
+/* === Project Grid === */
+.project-grid {{
+    flex: 1;
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(28rem, 1fr));
+    gap: 0.75rem;
+    padding: 0.75rem;
+    overflow-y: auto;
+    align-content: start;
+}}
+
+/* === Project Box === */
+.project-box {{
+    background: var(--ctp-mantle);
+    border: 1px solid var(--ctp-surface0);
+    border-radius: 0.5rem;
+    display: flex;
+    flex-direction: column;
+    min-height: 20rem;
+    max-height: 40rem;
+    overflow: hidden;
+}}
+
+.project-header {{
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    padding: 0.5rem 0.75rem;
+    background: var(--ctp-crust);
+    border-bottom: 1px solid var(--ctp-surface0);
+    border-radius: 0.5rem 0.5rem 0 0;
+    flex-shrink: 0;
+}}
+
+.project-header .status-dot {{
+    width: 8px;
+    height: 8px;
+    border-radius: 50%;
+    flex-shrink: 0;
+}}
+.status-dot.running {{
+    background: var(--ctp-green);
+    box-shadow: 0 0 6px var(--ctp-green);
+    animation: pulse 2s ease-in-out infinite;
+}}
+.status-dot.idle {{
+    background: var(--ctp-overlay0);
+}}
+.status-dot.stalled {{
+    background: var(--ctp-peach);
+    animation: pulse 1.5s ease-in-out infinite;
+}}
+.status-dot.error {{
+    background: var(--ctp-red);
+}}
+
+@keyframes pulse {{
+    0%, 100% {{ opacity: 1; }}
+    50% {{ opacity: 0.5; }}
+}}
+
+.project-name {{
+    font-weight: 600;
+    font-size: 0.875rem;
+    color: var(--ctp-text);
+    flex: 1;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}}
+
+.project-cwd {{
+    font-size: 0.6875rem;
+    color: var(--ctp-overlay0);
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    direction: rtl;
+    max-width: 12rem;
+}}
+
+/* === Tab Bar === */
+.tab-bar {{
+    display: flex;
+    gap: 0;
+    background: var(--ctp-crust);
+    border-bottom: 1px solid var(--ctp-surface0);
+    flex-shrink: 0;
+}}
+
+.tab {{
+    padding: 0.375rem 0.75rem;
+    font-size: 0.75rem;
+    color: var(--ctp-overlay1);
+    cursor: pointer;
+    border-bottom: 2px solid transparent;
+    transition: all 0.15s ease;
+    user-select: none;
+}}
+.tab:hover {{
+    color: var(--ctp-text);
+    background: var(--ctp-surface0);
+}}
+.tab.active {{
+    color: var(--ctp-blue);
+    border-bottom-color: var(--ctp-blue);
+}}
+
+/* === Tab Content === */
+.tab-content {{
+    flex: 1;
+    overflow: hidden;
+    display: flex;
+    flex-direction: column;
+    min-height: 0;
+}}
+
+/* === Agent Pane === */
+.agent-pane {{
+    display: flex;
+    flex-direction: column;
+    flex: 1;
+    min-height: 0;
+}}
+
+.message-list {{
+    flex: 1;
+    overflow-y: auto;
+    padding: 0.5rem 0.75rem;
+    display: flex;
+    flex-direction: column;
+    gap: 0.5rem;
+}}
+
+.message {{
+    padding: 0.5rem 0.75rem;
+    border-radius: 0.375rem;
+    font-size: 0.8125rem;
+    line-height: 1.5;
+    word-wrap: break-word;
+}}
+.message.user {{
+    background: color-mix(in srgb, var(--ctp-blue) 12%, transparent);
+    border-left: 3px solid var(--ctp-blue);
+}}
+.message.assistant {{
+    background: color-mix(in srgb, var(--ctp-mauve) 8%, transparent);
+    border-left: 3px solid var(--ctp-mauve);
+}}
+.message.tool {{
+    background: color-mix(in srgb, var(--ctp-teal) 8%, transparent);
+    border-left: 3px solid var(--ctp-teal);
+    font-family: var(--term-font-family);
+    font-size: 0.75rem;
+}}
+
+.message-role {{
+    font-size: 0.6875rem;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    margin-bottom: 0.25rem;
+}}
+.message.user .message-role {{ color: var(--ctp-blue); }}
+.message.assistant .message-role {{ color: var(--ctp-mauve); }}
+.message.tool .message-role {{ color: var(--ctp-teal); }}
+
+.message-text {{
+    color: var(--ctp-text);
+}}
+
+.tool-details {{
+    margin-top: 0.25rem;
+}}
+.tool-details summary {{
+    cursor: pointer;
+    color: var(--ctp-overlay1);
+    font-size: 0.6875rem;
+    user-select: none;
+}}
+.tool-details summary:hover {{
+    color: var(--ctp-text);
+}}
+.tool-output {{
+    margin-top: 0.375rem;
+    padding: 0.375rem 0.5rem;
+    background: var(--ctp-crust);
+    border-radius: 0.25rem;
+    font-family: var(--term-font-family);
+    font-size: 0.6875rem;
+    color: var(--ctp-subtext0);
+    white-space: pre-wrap;
+    max-height: 10rem;
+    overflow-y: auto;
+}}
+
+/* === Prompt Input === */
+.prompt-bar {{
+    display: flex;
+    gap: 0.5rem;
+    padding: 0.5rem 0.75rem;
+    background: var(--ctp-crust);
+    border-top: 1px solid var(--ctp-surface0);
+    align-items: center;
+    flex-shrink: 0;
+}}
+
+.prompt-input {{
+    flex: 1;
+    background: var(--ctp-surface0);
+    border: 1px solid var(--ctp-surface1);
+    border-radius: 0.375rem;
+    padding: 0.4375rem 0.75rem;
+    color: var(--ctp-text);
+    font-family: var(--ui-font-family);
+    font-size: 0.8125rem;
+    outline: none;
+    transition: border-color 0.15s ease;
+}}
+.prompt-input:focus {{
+    border-color: var(--ctp-blue);
+}}
+.prompt-input::placeholder {{
+    color: var(--ctp-overlay0);
+}}
+
+.prompt-send {{
+    background: var(--ctp-blue);
+    color: var(--ctp-crust);
+    border: none;
+    border-radius: 0.375rem;
+    padding: 0.4375rem 0.75rem;
+    font-size: 0.75rem;
+    font-weight: 600;
+    cursor: pointer;
+    transition: opacity 0.15s ease;
+}}
+.prompt-send:hover {{
+    opacity: 0.85;
+}}
+.prompt-send:disabled {{
+    opacity: 0.4;
+    cursor: not-allowed;
+}}
+
+/* === Agent Status Strip === */
+.agent-status {{
+    display: flex;
+    align-items: center;
+    gap: 0.5rem;
+    padding: 0.25rem 0.75rem;
+    background: var(--ctp-crust);
+    border-top: 1px solid var(--ctp-surface0);
+    font-size: 0.6875rem;
+    color: var(--ctp-overlay1);
+    flex-shrink: 0;
+}}
+
+.status-badge {{
+    padding: 0.125rem 0.375rem;
+    border-radius: 0.25rem;
+    font-weight: 600;
+    text-transform: uppercase;
+    font-size: 0.625rem;
+    letter-spacing: 0.05em;
+}}
+.status-badge.idle {{
+    background: color-mix(in srgb, var(--ctp-overlay0) 20%, transparent);
+    color: var(--ctp-overlay1);
+}}
+.status-badge.running {{
+    background: color-mix(in srgb, var(--ctp-green) 20%, transparent);
+    color: var(--ctp-green);
+}}
+.status-badge.done {{
+    background: color-mix(in srgb, var(--ctp-blue) 20%, transparent);
+    color: var(--ctp-blue);
+}}
+.status-badge.error {{
+    background: color-mix(in srgb, var(--ctp-red) 20%, transparent);
+    color: var(--ctp-red);
+}}
+
+/* === Terminal Area === */
+.terminal-area {{
+    background: var(--ctp-crust);
+    border-top: 1px solid var(--ctp-surface0);
+    height: 8rem;
+    overflow-y: auto;
+    padding: 0.5rem;
+    font-family: var(--term-font-family);
+    font-size: var(--term-font-size);
+    color: var(--ctp-green);
+    flex-shrink: 0;
+}}
+
+.terminal-line {{
+    line-height: 1.4;
+    white-space: pre-wrap;
+}}
+.terminal-prompt {{
+    color: var(--ctp-blue);
+}}
+.terminal-output {{
+    color: var(--ctp-subtext0);
+}}
+
+/* === Status Bar === */
+.status-bar {{
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 0.25rem 0.75rem;
+    background: var(--ctp-crust);
+    border-top: 1px solid var(--ctp-surface0);
+    font-size: 0.6875rem;
+    color: var(--ctp-overlay1);
+    flex-shrink: 0;
+    height: 1.5rem;
+}}
+
+.status-bar-left,
+.status-bar-right {{
+    display: flex;
+    align-items: center;
+    gap: 1rem;
+}}
+
+.status-item {{
+    display: flex;
+    align-items: center;
+    gap: 0.25rem;
+}}
+
+.status-count {{
+    font-weight: 600;
+}}
+.status-count.running {{ color: var(--ctp-green); }}
+.status-count.idle {{ color: var(--ctp-overlay1); }}
+.status-count.stalled {{ color: var(--ctp-peach); }}
+
+.status-cost {{
+    color: var(--ctp-yellow);
+    font-weight: 600;
+}}
+
+/* === Settings Panel === */
+.settings-section {{
+    margin-bottom: 1.5rem;
+}}
+
+.settings-section-title {{
+    font-size: 0.75rem;
+    font-weight: 600;
+    color: var(--ctp-subtext0);
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    margin-bottom: 0.75rem;
+    padding-bottom: 0.375rem;
+    border-bottom: 1px solid var(--ctp-surface0);
+}}
+
+.settings-row {{
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 0.375rem 0;
+    font-size: 0.8125rem;
+}}
+
+.settings-label {{
+    color: var(--ctp-subtext1);
+}}
+
+.settings-value {{
+    color: var(--ctp-text);
+    font-weight: 500;
+}}
+
+.settings-select {{
+    background: var(--ctp-surface0);
+    border: 1px solid var(--ctp-surface1);
+    border-radius: 0.25rem;
+    padding: 0.25rem 0.5rem;
+    color: var(--ctp-text);
+    font-size: 0.75rem;
+    outline: none;
+}}
+.settings-select:focus {{
+    border-color: var(--ctp-blue);
+}}
+
+/* === Command Palette === */
+.palette-overlay {{
+    position: fixed;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.5);
+    display: flex;
+    align-items: flex-start;
+    justify-content: center;
+    padding-top: 20vh;
+    z-index: 1000;
+}}
+
+.palette-box {{
+    width: 32rem;
+    max-width: 90vw;
+    background: var(--ctp-mantle);
+    border: 1px solid var(--ctp-surface0);
+    border-radius: 0.5rem;
+    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.4);
+    overflow: hidden;
+}}
+
+.palette-input {{
+    width: 100%;
+    padding: 0.75rem 1rem;
+    background: transparent;
+    border: none;
+    border-bottom: 1px solid var(--ctp-surface0);
+    color: var(--ctp-text);
+    font-family: var(--ui-font-family);
+    font-size: 0.9375rem;
+    outline: none;
+}}
+.palette-input::placeholder {{
+    color: var(--ctp-overlay0);
+}}
+
+.palette-results {{
+    max-height: 20rem;
+    overflow-y: auto;
+}}
+
+.palette-item {{
+    padding: 0.5rem 1rem;
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    cursor: pointer;
+    transition: background 0.1s ease;
+}}
+.palette-item:hover, .palette-item.selected {{
+    background: var(--ctp-surface0);
+}}
+
+.palette-item-icon {{
+    color: var(--ctp-overlay1);
+    font-size: 0.875rem;
+    width: 1.25rem;
+    text-align: center;
+}}
+
+.palette-item-label {{
+    color: var(--ctp-text);
+    font-size: 0.8125rem;
+}}
+
+.palette-item-shortcut {{
+    margin-left: auto;
+    font-size: 0.6875rem;
+    color: var(--ctp-overlay0);
+    font-family: var(--term-font-family);
+}}
+
+/* === Docs Tab === */
+.docs-pane {{
+    padding: 0.75rem;
+    overflow-y: auto;
+    flex: 1;
+}}
+.docs-entry {{
+    padding: 0.375rem 0.5rem;
+    border-radius: 0.25rem;
+    cursor: pointer;
+    color: var(--ctp-subtext1);
+    font-size: 0.8125rem;
+    transition: background 0.1s ease;
+}}
+.docs-entry:hover {{
+    background: var(--ctp-surface0);
+    color: var(--ctp-text);
+}}
+
+/* === Files Tab === */
+.files-pane {{
+    padding: 0.75rem;
+    overflow-y: auto;
+    flex: 1;
+}}
+.file-tree-item {{
+    display: flex;
+    align-items: center;
+    gap: 0.375rem;
+    padding: 0.25rem 0.5rem;
+    border-radius: 0.25rem;
+    cursor: pointer;
+    color: var(--ctp-subtext1);
+    font-size: 0.75rem;
+    font-family: var(--term-font-family);
+}}
+.file-tree-item:hover {{
+    background: var(--ctp-surface0);
+    color: var(--ctp-text);
+}}
+.file-tree-icon {{
+    color: var(--ctp-overlay0);
+    width: 1rem;
+    text-align: center;
+}}
+
+/* === Provider Badge === */
+.provider-badge {{
+    font-size: 0.5625rem;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    padding: 0.0625rem 0.3125rem;
+    border-radius: 0.1875rem;
+    background: color-mix(in srgb, var(--ctp-mauve) 15%, transparent);
+    color: var(--ctp-mauve);
+}}
+"#,
+        base = CatppuccinMocha::BASE,
+        mantle = CatppuccinMocha::MANTLE,
+        crust = CatppuccinMocha::CRUST,
+        surface0 = CatppuccinMocha::SURFACE0,
+        surface1 = CatppuccinMocha::SURFACE1,
+        surface2 = CatppuccinMocha::SURFACE2,
+        overlay0 = CatppuccinMocha::OVERLAY0,
+        overlay1 = CatppuccinMocha::OVERLAY1,
+        overlay2 = CatppuccinMocha::OVERLAY2,
+        subtext0 = CatppuccinMocha::SUBTEXT0,
+        subtext1 = CatppuccinMocha::SUBTEXT1,
+        text = CatppuccinMocha::TEXT,
+        rosewater = CatppuccinMocha::ROSEWATER,
+        flamingo = CatppuccinMocha::FLAMINGO,
+        pink = CatppuccinMocha::PINK,
+        mauve = CatppuccinMocha::MAUVE,
+        red = CatppuccinMocha::RED,
+        maroon = CatppuccinMocha::MAROON,
+        peach = CatppuccinMocha::PEACH,
+        yellow = CatppuccinMocha::YELLOW,
+        green = CatppuccinMocha::GREEN,
+        teal = CatppuccinMocha::TEAL,
+        sky = CatppuccinMocha::SKY,
+        sapphire = CatppuccinMocha::SAPPHIRE,
+        blue = CatppuccinMocha::BLUE,
+        lavender = CatppuccinMocha::LAVENDER,
+    )
+}