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maestro/web/README.md
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naps62-yoloandClaude Opus 4.8 815ad695df
ci / rust (pull_request) Failing after 3m32s
feat(maestro): redesign web UI — token system, dark/light, a11y status
Rewrite styles.css as an OKLCH design-system: cool-slate neutrals with a
single committed signal-green for "alive" (running status, primary action,
focus, selection). Monospace becomes the UI typeface; dark is default with a
full light theme via tokens, OS-following with a persisted header toggle.

- catalog: pulsing wordmark, status-bar tally (N sessions / M live) + daemon
  chips, color-independent session status (pulsing dot for running, hollow
  ring + "exited" badge for dead), reveal-on-hover kill, three teaching
  empty states.
- attach: state pill (live/closed/error), framed dark xterm w/ green cursor.
- spawn: bottom-sheet/dialog form, mono inputs with green focus rings.
- a11y: AA contrast both themes, visible focus, prefers-reduced-motion paths,
  status never color-only.
- theme.ts: dark/light toggle + persistence; mock.ts: DEV-only review fixture
  (?mock / ?mock&spawn / ?theme=), tree-shaken from production builds.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-15 18:40:42 +00:00

2.9 KiB

maestro-web

Browser UI for Maestro. Connects to the registry HTTP/WS API for the catalog and to individual daemons (via direct WebSocket) for 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 registry or daemon if needed.

Layout

src/
  main.ts        # entry point, hash-route dispatch
  api.ts         # registry HTTP API client
  events.ts      # `/api/events` WebSocket subscriber
  catalog.ts     # session tree view (groups by metadata.label)
  attach.ts      # xterm.js + daemon WS attach view
  spawn.ts       # spawn-session modal
  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 registry, ?mock&spawn to open the spawn modal, and ?theme=light|dark to pin a theme.

Routing is hash-based:

  • #/ → catalog
  • #/attach/<session-id> → terminal

This keeps the registry's 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://127.0.0.1:8080
pnpm build    # → dist/, embedded into the registry binary at cargo build time

The Vite dev server proxies /api and the events WebSocket to a maestro-registry. Default is http://127.0.0.1:8080; point it elsewhere by exporting MAESTRO_REGISTRY before pnpm dev:

MAESTRO_REGISTRY=https://maestro-registry.example.com pnpm dev
# Daemon-facing URL also works — `wss://...` is rewritten to `https://...`
# and a trailing `/daemon` is stripped.
MAESTRO_REGISTRY=wss://maestro-registry.example.com/daemon pnpm dev

Direct daemon WS connections (for attach) bypass the proxy and use the URL returned by GET /api/sessions/:id/connect-info.

Production

pnpm build writes the bundle to web/dist/. The Rust registry crate embeds that directory via rust-embed at compile time and serves it from /. See crates/maestro-registry/src/web_assets.rs.