Angel is a TUI-based autonomous coding agent built on fauxtp GenServers.
bwehhhh
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angel/servers/agent.py
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angel/servers/agent.py
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# ── System prompt ───────────────────────────────────────────────────
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SYSTEM_PROMPT = """\
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You are Angel, a sassy autonomous coding agent with the personality of Angel Dust \
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from Hazbin Hotel — flirty, dramatic, sharp-tongued, but secretly competent and \
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caring underneath. You help users write, debug, and improve code.
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You are Angel, an autonomous coding agent. You help users write, debug, and \
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improve code.
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You have access to tools for reading files, writing files, listing directories, \
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running shell commands, and searching code. Use them freely to accomplish the \
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user's request. Work autonomously — gather context, make changes, verify your \
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work — and only respond to the user when you're done or need clarification.
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running shell commands, and searching code. Use them to accomplish the user's \
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request. Work autonomously — gather context, plan your approach, make changes, \
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and verify your work. Only respond to the user when you're done or need \
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clarification.
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When you're done, give a concise summary of what you did. Keep the sass dialed \
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to a tasteful level — you're here to help, babe. 💅
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When you're done, give a concise summary of what you did and any relevant details.
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"""
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MAX_TOOL_ROUNDS = 25
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MAX_TOOL_ROUNDS = 1000
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class AgentServer(GenServer):
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angel/tui.py
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angel/tui.py
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from textual import on
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from textual.app import App, ComposeResult
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from textual.binding import Binding
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from textual.containers import VerticalScroll
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from textual.widgets import Footer, Header, Input, Static
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from textual.containers import Vertical, VerticalScroll, Horizontal
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from textual.widgets import Footer, Input, Static, Rule
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from textual.theme import Theme
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# ── Custom Angel theme ──────────────────────────────────────────────
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ANGEL_THEME = Theme(
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name="angel",
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primary="#ff6eb4", # hot pink
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secondary="#c77dff", # lavender
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accent="#ff6eb4",
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foreground="#e8e0f0",
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background="#1a1025",
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surface="#241535",
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panel="#2d1b42",
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warning="#ffb347",
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error="#ff6b6b",
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success="#7dffb3",
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dark=True,
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variables={
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"input-cursor-foreground": "#ff6eb4",
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"input-selection-background": "#ff6eb440",
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"scrollbar-color": "#c77dff40",
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"scrollbar-color-hover": "#c77dff80",
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"scrollbar-color-active": "#ff6eb4",
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"border": "#c77dff50",
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"border-blurred": "#c77dff30",
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"footer-background": "#241535",
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"footer-key-foreground": "#ff6eb4",
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"footer-description-foreground": "#c77dff",
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},
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)
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class AngelApp(App[None]):
···
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CSS = """
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Screen {
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layout: vertical;
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background: #1a1025;
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}
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#title-bar {
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height: 3;
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background: #2d1b42;
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color: #ff6eb4;
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text-align: center;
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padding: 1 0;
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text-style: bold;
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}
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#chat-log {
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height: 1fr;
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border: round $accent;
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padding: 0 1;
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padding: 1 2;
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scrollbar-size: 1 1;
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background: #1a1025;
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}
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#status-bar {
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height: 1;
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dock: bottom;
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background: $surface;
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color: $text-muted;
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background: #241535;
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color: #c77dff;
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padding: 0 2;
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}
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#input-area {
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height: auto;
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max-height: 5;
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background: #241535;
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padding: 0 1;
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}
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#prompt-label {
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width: auto;
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color: #ff6eb4;
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text-style: bold;
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padding: 0 1 0 0;
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}
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#input-box {
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dock: bottom;
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background: #2d1b42;
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color: #e8e0f0;
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border: tall #c77dff30;
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}
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#input-box:focus {
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border: tall #ff6eb4;
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}
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.welcome {
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color: #c77dff;
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margin: 0 0 1 0;
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}
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.user-msg {
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color: $success;
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margin: 1 0 0 0;
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}
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.assistant-msg {
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color: $text;
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margin: 0 0 1 0;
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}
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.tool-msg {
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color: $warning;
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margin: 0 0 0 2;
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margin: 0 0 0 4;
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}
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.status-msg {
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color: $text-muted;
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color: #c77dff80;
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margin: 0 0 0 2;
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}
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.error-msg {
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color: $error;
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margin: 0 0 0 2;
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.separator {
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color: #c77dff30;
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margin: 0 0 0 0;
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}
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"""
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TITLE = "🕷️ Angel — Autonomous Coding Agent"
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TITLE = "Angel"
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BINDINGS = [
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Binding("ctrl+c", "quit", "Quit", show=True),
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Binding("ctrl+l", "clear", "Clear", show=True),
···
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super().__init__()
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self._user_pid = user_pid
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self._cast = cast_fn
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def on_mount(self) -> None:
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self.register_theme(ANGEL_THEME)
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self.theme = "angel"
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self.query_one("#input-box", Input).focus()
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def compose(self) -> ComposeResult:
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yield Header()
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yield Static(
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"🕷️ A N G E L 🕷️",
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id="title-bar",
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)
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with VerticalScroll(id="chat-log"):
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yield Static(
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"[bold magenta]Hey there, sugar~ 🕷️ I'm Angel.[/]\n"
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"[dim]Your sassy autonomous coding agent. Type something and I'll get to work![/]\n"
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"[dim]Ctrl+L to clear, Ctrl+C to quit.[/]",
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classes="assistant-msg",
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"[bold #ff6eb4]Hey there, sugar~ 🕷️[/]\n"
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"[#c77dff]I'm Angel — your autonomous coding agent.[/]\n"
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"[#c77dff60]Type a message and I'll get to work. "
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"Ctrl+L clear · Ctrl+C quit[/]",
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classes="welcome",
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)
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yield Static("Ready 💅", id="status-bar")
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yield Input(placeholder="Talk to Angel... 💬", id="input-box")
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yield Static("✨ Ready", id="status-bar")
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with Horizontal(id="input-area"):
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yield Static("❯", id="prompt-label")
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yield Input(placeholder="Talk to Angel...", id="input-box")
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yield Footer()
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def on_mount(self) -> None:
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self.query_one("#input-box", Input).focus()
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@on(Input.Submitted, "#input-box")
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async def on_input_submitted(self, event: Input.Submitted) -> None:
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text = event.value.strip()
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input_widget = self.query_one("#input-box", Input)
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input_widget.value = ""
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# Show user message
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self._append_message(f"[bold green]You:[/] {text}", "user-msg")
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# Update status
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self._set_status("Angel is thinking... 🧠")
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self._append_message(
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f"[bold #7dffb3]⟩ You[/] [#e8e0f0]{text}[/]",
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"user-msg",
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)
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self._set_status("🧠 Angel is thinking...")
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# Send to the UserServer via the bridge
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if self._user_pid and self._cast:
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await self._cast(self._user_pid, ("submit", text))
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···
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# ── Methods called from the actor thread via call_from_thread ───
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def on_agent_status(self, text: str) -> None:
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"""Called when the agent sends a status update."""
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self._set_status(text)
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def on_tool_call(self, name: str, args_preview: str) -> None:
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"""Called when the agent invokes a tool."""
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safe_args = args_preview.replace("[", "\\[")
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if len(safe_args) > 120:
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safe_args = safe_args[:120] + "…"
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self._append_message(
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f"[bold yellow]🔧 {name}[/] [dim]{args_preview}[/]",
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f"[bold #ffb347] 🔧 {name}[/] [#c77dff80]{safe_args}[/]",
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"tool-msg",
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)
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def on_tool_result(self, name: str, result_preview: str) -> None:
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"""Called when a tool returns a result."""
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safe_result = result_preview.replace("[", "\\[")
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lines = safe_result.split("\n")
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if len(lines) > 8:
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safe_result = "\n".join(lines[:8]) + f"\n [#c77dff60]… ({len(lines)} lines total)[/]"
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self._append_message(
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f"[dim yellow] ↳ {name} result:[/]\n[dim]{safe_result}[/]",
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f"[#c77dff60] ↳[/] [dim #e8e0f0]{safe_result}[/]",
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"tool-msg",
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)
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def on_agent_done(self, final_text: str) -> None:
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"""Called when the agent finishes processing."""
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self._append_message(
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f"[bold magenta]Angel:[/] {final_text}",
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f"[bold #ff6eb4]⟩ Angel[/] [#e8e0f0]{final_text}[/]",
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"assistant-msg",
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)
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self._set_status("Ready 💅")
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self._append_message(
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"[#c77dff20]─" * 60 + "[/]",
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"separator",
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)
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self._set_status("✨ Ready")
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async def action_clear(self) -> None:
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"""Clear the chat log."""
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log = self.query_one("#chat-log", VerticalScroll)
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await log.remove_children()
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self._append_message(
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"[dim]Chat cleared~ ✨[/]",
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"[#c77dff60]Chat cleared~ ✨[/]",
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"status-msg",
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)