Miguel Palhas
ad2e700391
Pressing Spawn while reading a session split that pane in half. It now opens the draft in its own tab, leaving the current tab untouched. Scoped to the explicit Spawn affordances (the header button and the sidebar empty state, both via OPEN_SPAWN_EVENT). "Spawn similar" and the fast-forward key deliberately keep splitting: both act on the session in front of you, so a pane beside it is the point. Reusing an empty pane (#72) is unchanged — that path never split anything. Closes #100
maestro-web
Browser UI for Maestro. Talks to a single local daemon over its /api/*
HTTP/WS surface — session catalog, spawn/kill, and terminal I/O.
Framework choice: vanilla TypeScript
No frontend framework. The UI is small enough that the cost of pulling in Preact / Solid / Leptos doesn't pay back. xterm.js does all the heavy rendering; everything else is a session tree and a spawn form, both trivial in plain DOM.
This decision is non-architectural — swap in a framework later without touching the daemon if needed.
Layout
src/
main.ts # entry point, hash-route dispatch
api.ts # daemon HTTP API client
events.ts # `/api/events` WebSocket subscriber
catalog.ts # session tree view (groups by working directory)
attach.ts # xterm.js + attach WS view
multiview.ts # tabs + split panes; draft panes host the spawn form
spawnForm.ts # shared spawn form (preset tiles, project picker, worktree)
theme.ts # dark/light theme toggle + persistence
types.ts # mirror of `maestro-protocol` JSON shapes
styles.css # design-system tokens + component styles
mock.ts # DEV-only review fixture (see Design)
Design
The visual system (OKLCH token palette, monospace-first typography, dark+light
theming, motion, components) is documented in ../DESIGN.md;
the tokens live in the :root block of src/styles.css. Strategic intent
(register, brand, principles) is in ../PRODUCT.md. Theme
follows the OS by default and can be pinned via the header toggle (persisted in
localStorage).
mock.ts is a DEV-only fixture (stripped from production builds): visit the dev
server with ?mock to seed a representative catalog without a running daemon,
?mock&spawn to open a draft pane, and ?theme=light|dark to pin a theme.
Routing is hash-based:
#/→ catalog#/attach/<session-id>→ terminal
This keeps the static handler dumb (no SPA fallback needed). Concurrent
attaches: open the same #/attach/<id> URL in another tab.
Dev
pnpm install
pnpm dev # http://localhost:5173, proxies /api → http://127.0.0.1:7070
pnpm build # → dist/, embedded into the maestro-web binary at cargo build time
The Vite dev server proxies /api and the WebSockets to a local daemon.
Default is http://127.0.0.1:7070; point it elsewhere by exporting
MAESTRO_DAEMON_URL before pnpm dev:
MAESTRO_DAEMON_URL=http://laptop.lan:7070 pnpm dev
Production
pnpm build writes the bundle to web/dist/. The maestro-web crate embeds
that directory at compile time and serves it from /, reverse-proxying /api/*
to the daemon. See crates/maestro-web/src/static_bundle.rs.