Files
hermes-agent/web/src/index.css
emozilla f49afd3122 feat(web): add /api/pty WebSocket bridge to embed TUI in dashboard
Exposes hermes --tui over a PTY-backed WebSocket so the dashboard can
embed the real TUI rather than reimplement its surface. The browser
attaches xterm.js to the socket; keystrokes flow in, PTY output bytes
flow out.

Architecture:

    browser <Terminal> (xterm.js)
           │  onData ───► ws.send(keystrokes)
           │  onResize ► ws.send('\x1b[RESIZE:cols;rows]')
           │  write   ◄── ws.onmessage (PTY bytes)
           ▼
    FastAPI /api/pty (token-gated, loopback-only)
           ▼
    PtyBridge (ptyprocess) ── spawns node ui-tui/dist/entry.js ──► tui_gateway + AIAgent

Components
----------

hermes_cli/pty_bridge.py
  Thin wrapper around ptyprocess.PtyProcess: byte-safe read/write on the
  master fd via os.read/os.write (not PtyProcessUnicode — ANSI is
  inherently byte-oriented and UTF-8 boundaries may land mid-read),
  non-blocking select-based reads, TIOCSWINSZ resize, idempotent
  SIGHUP→SIGTERM→SIGKILL teardown, platform guard (POSIX-only; Windows
  is WSL-supported only).

hermes_cli/web_server.py
  @app.websocket("/api/pty") endpoint gated by the existing
  _SESSION_TOKEN (via ?token= query param since browsers can't set
  Authorization on WS upgrades). Loopback-only enforcement. Reader task
  uses run_in_executor to pump PTY bytes without blocking the event
  loop. Writer loop intercepts a custom \x1b[RESIZE:cols;rows] escape
  before forwarding to the PTY. The endpoint resolves the TUI argv
  through a _resolve_chat_argv hook so tests can inject fake commands
  without building the real TUI.

Tests
-----

tests/hermes_cli/test_pty_bridge.py — 12 unit tests: spawn, stdout,
stdin round-trip, EOF, resize (via TIOCSWINSZ + tput readback), close
idempotency, cwd, env forwarding, unavailable-platform error.

tests/hermes_cli/test_web_server.py — TestPtyWebSocket adds 7 tests:
missing/bad token rejection (close code 4401), stdout streaming,
stdin round-trip, resize escape forwarding, unavailable-platform ANSI
error frame + 1011 close, resume parameter forwarding to argv.

96 tests pass under scripts/run_tests.sh.

(cherry picked from commit 29b337bca7)

feat(web): add Chat tab with xterm.js terminal + Sessions resume button

(cherry picked from commit 3d21aee8 by emozilla, conflicts resolved
 against current main: BUILTIN_ROUTES table + plugin slot layout)

fix(tui): replace OSC 52 jargon in /copy confirmation

When the user ran /copy successfully, Ink confirmed with:

  sent OSC52 copy sequence (terminal support required)

That reads like a protocol spec to everyone who isn't a terminal
implementer. The caveat was a historical artifact — OSC 52 wasn't
universally supported when this message was written, so the TUI
honestly couldn't guarantee the copy had landed anywhere.

Today every modern terminal (including the dashboard's embedded
xterm.js) handles OSC 52 reliably. Say what the user actually wants
to know — that it copied, and how much — matching the message the
TUI already uses for selection copy:

  copied 1482 chars

(cherry picked from commit a0701b1d5a)

docs: document the dashboard Chat tab

AGENTS.md — new subsection under TUI Architecture explaining that the
dashboard embeds the real hermes --tui rather than rewriting it,
with pointers to the pty_bridge + WebSocket endpoint and the rule
'never add a parallel chat surface in React.'

website/docs/user-guide/features/web-dashboard.md — user-facing Chat
section inside the existing Web Dashboard page, covering how it works
(WebSocket + PTY + xterm.js), the Sessions-page resume flow, and
prerequisites (Node.js, ptyprocess, POSIX kernel / WSL on Windows).

(cherry picked from commit 2c2e32cc45)

feat(tui-gateway): transport-aware dispatch + WebSocket sidecar

Decouples the JSON-RPC dispatcher from its I/O sink so the same handler
surface can drive multiple transports concurrently. The PTY chat tab
already speaks to the TUI binary as bytes — this adds a structured
event channel alongside it for dashboard-side React widgets that need
typed events (tool.start/complete, model picker state, slash catalog)
that PTY can't surface.

- `tui_gateway/transport.py` — `Transport` protocol + `contextvars` binding
  + module-level `StdioTransport` fallback. The stdio stream resolves
  through a lambda so existing tests that monkey-patch `_real_stdout`
  keep passing without modification.
- `tui_gateway/ws.py` — WebSocket transport implementation; FastAPI
  endpoint mounting lives in hermes_cli/web_server.py.
- `tui_gateway/server.py`:
  - `write_json` routes via session transport (for async events) →
    contextvar transport (for in-request writes) → stdio fallback.
  - `dispatch(req, transport=None)` binds the transport for the request
    lifetime and propagates it to pool workers via `contextvars.copy_context`
    so async handlers don't lose their sink.
  - `_init_session` and the manual-session create path stash the
    request's transport so out-of-band events (subagent.complete, etc.)
    fan out to the right peer.

`tui_gateway.entry` (Ink's stdio handshake) is unchanged externally —
it falls through every precedence step into the stdio fallback, byte-
identical to the previous behaviour.

feat(web): ChatSidebar — JSON-RPC sidecar next to xterm.js terminal

Composes the two transports into a single Chat tab:

  ┌─────────────────────────────────────────┬──────────────┐
  │  xterm.js / PTY  (emozilla #13379)      │ ChatSidebar  │
  │  the literal hermes --tui process       │  /api/ws     │
  └─────────────────────────────────────────┴──────────────┘
        terminal bytes                          structured events

The terminal pane stays the canonical chat surface — full TUI fidelity,
slash commands, model picker, mouse, skin engine, wide chars all paint
inside the terminal. The sidebar opens a parallel JSON-RPC WebSocket
to the same gateway and renders metadata that PTY can't surface to
React chrome:

  • model + provider badge with connection state (click → switch)
  • running tool-call list (driven by tool.start / tool.progress /
    tool.complete events)
  • model picker dialog (gateway-driven, reuses ModelPickerDialog)

The sidecar is best-effort. If the WS can't connect (older gateway,
network hiccup, missing token) the terminal pane keeps working
unimpaired — sidebar just shows the connection-state badge in the
appropriate tone.

- `web/src/components/ChatSidebar.tsx` — new component (~270 lines).
  Owns its GatewayClient, drives the model picker through
  `slash.exec`, fans tool events into a capped tool list.
- `web/src/pages/ChatPage.tsx` — split layout: terminal pane
  (`flex-1`) + sidebar (`w-80`, `lg+` only).
- `hermes_cli/web_server.py` — mount `/api/ws` (token + loopback
  guards mirror /api/pty), delegate to `tui_gateway.ws.handle_ws`.

Co-authored-by: emozilla <emozilla@nousresearch.com>

refactor(web): /clean pass on ChatSidebar + ChatPage lint debt

- ChatSidebar: lift gw out of useRef into a useMemo derived from a
  reconnect counter. React 19's react-hooks/refs and react-hooks/
  set-state-in-effect rules both fire when you touch a ref during
  render or call setState from inside a useEffect body. The
  counter-derived gw is the canonical pattern for "external resource
  that needs to be replaceable on user action" — re-creating the
  client comes from bumping `version`, the effect just wires + tears
  down. Drops the imperative `gwRef.current = …` reassign in
  reconnect, drops the truthy ref guard in JSX. modelLabel +
  banner inlined as derived locals (one-off useMemo was overkill).
- ChatPage: lazy-init the banner state from the missing-token check
  so the effect body doesn't have to setState on first run. Drops
  the unused react-hooks/exhaustive-deps eslint-disable. Adds a
  scoped no-control-regex disable on the SGR mouse parser regex
  (the \\x1b is intentional for xterm escape sequences).

All my-touched files now lint clean. Remaining warnings on web/
belong to pre-existing files this PR doesn't touch.

Verified: vitest 249/249, ui-tui eslint clean, web tsc clean,
python imports clean.

chore: uptick

fix(web): drop ChatSidebar tool list — events can't cross PTY/WS boundary

The /api/pty endpoint spawns `hermes --tui` as a child process with its
own tui_gateway and _sessions dict; /api/ws runs handle_ws in-process in
the dashboard server with a separate _sessions dict. Tool events fire on
the child's gateway and never reach the WS sidecar, so the sidebar's
tool.start/progress/complete listeners always observed an empty list.

Drop the misleading list (and the now-orphaned ToolCall primitive),
keep model badge + connection state + model picker + error banner —
those work because they're sidecar-local concerns. Surfacing tool calls
in the sidebar requires cross-process forwarding (PTY child opens a
back-WS to the dashboard, gateway tees emits onto stdio + sidecar
transport) — proper feature for a follow-up.

feat(web): wire ChatSidebar tool list to PTY child via /api/pub broadcast

The dashboard's /api/pty spawns hermes --tui as a child process; tool
events fire in the python tui_gateway grandchild and never crossed the
process boundary into the in-process WS sidecar — so the sidebar tool
list was always empty.

Cross-process forwarding:

- tui_gateway: TeeTransport (transport.py) + WsPublisherTransport
  (event_publisher.py, sync websockets client). entry.py installs the
  tee on _stdio_transport when HERMES_TUI_SIDECAR_URL is set, mirroring
  every dispatcher emit to a back-WS without disturbing Ink's stdio
  handshake.

- hermes_cli/web_server.py: new /api/pub (publisher) + /api/events
  (subscriber) endpoints with a per-channel registry. /api/pty now
  accepts ?channel= and propagates the sidecar URL via env. start_server
  also stashes app.state.bound_port so the URL is constructable.

- web/src/pages/ChatPage.tsx: generates a channel UUID per mount,
  passes it to /api/pty and as a prop to ChatSidebar.

- web/src/components/ChatSidebar.tsx: opens /api/events?channel=, fans
  tool.start/progress/complete back into the ToolCall list. Restores
  the ToolCall primitive.

Tests: 4 new TestPtyWebSocket cases cover channel propagation,
broadcast fan-out, and missing-channel rejection (10 PTY tests pass,
120 web_server tests overall).

fix(web): address Copilot review on #14890

Five threads, all real:

- gatewayClient.ts: register `message`/`close` listeners BEFORE awaiting
  the open handshake.  Server emits `gateway.ready` immediately after
  accept, so a listener attached after the open promise could race past
  the initial skin payload and lose it.

- ChatSidebar.tsx: wire `error`/`close` on the /api/events subscriber
  WS into the existing error banner.  4401/4403 (auth/loopback reject)
  surface as a "reload the page" message; mid-stream drops surface as
  "events feed disconnected" with the existing reconnect button.  Clean
  unmount closes (1000/1001) stay silent.

- web-dashboard.md: install hint was `pip install hermes-agent[web]` but
  ptyprocess lives in the `pty` extra, not `web`.  Switch to
  `hermes-agent[web,pty]` in both prerequisite blocks.

- AGENTS.md: previous "never add a parallel React chat surface" guidance
  was overbroad and contradicted this PR's sidebar.  Tightened to forbid
  re-implementing the transcript/composer/PTY terminal while explicitly
  allowing structured supporting widgets (sidebar / model picker /
  inspectors), matching the actual architecture.

- web/package-lock.json: regenerated cleanly so the wterm sibling
  workspace paths (extraneous machine-local entries) stop polluting CI.

Tests: 249/249 vitest, 10/10 PTY/events, web tsc clean.

refactor(web): /clean pass on ChatSidebar events handler

Spotted in the round-2 review:

- Banner flashed on clean unmount: `ws.close()` from the effect cleanup
  fires `close` with code 1005, opened=true, neither 1000 nor 1001 —
  hit the "unexpected drop" branch.  Track `unmounting` in the effect
  scope and gate the banner through a `surface()` helper so cleanup
  closes stay silent.

- DRY the duplicated "events feed disconnected" string into a local
  const used by both the error and close handlers.

- Drop the `opened` flag (no longer needed once the unmount guard is
  the source of truth for "is this an expected close?").
2026-04-24 10:51:49 -04:00

230 lines
7.9 KiB
CSS

@import 'tailwindcss';
@import '@nous-research/ui/styles/globals.css';
/* Scan the published design-system bundle so its utility classes survive
Tailwind's JIT purge. */
@source '../node_modules/@nous-research/ui/dist';
/* ------------------------------------------------------------------ */
/* JetBrains Mono — bundled for the embedded TUI (/chat tab). */
/* Gives the terminal a proper monospace font even on systems where */
/* the user doesn't have one installed locally; xterm.js picks it up */
/* via ChatPage's `fontFamily` option. */
/* Apache-2.0. */
/* ------------------------------------------------------------------ */
@font-face {
font-family: 'JetBrains Mono';
font-style: normal;
font-weight: 400;
font-display: swap;
src: url('/fonts-terminal/JetBrainsMono-Regular.woff2') format('woff2');
}
@font-face {
font-family: 'JetBrains Mono';
font-style: normal;
font-weight: 700;
font-display: swap;
src: url('/fonts-terminal/JetBrainsMono-Bold.woff2') format('woff2');
}
@font-face {
font-family: 'JetBrains Mono';
font-style: italic;
font-weight: 400;
font-display: swap;
src: url('/fonts-terminal/JetBrainsMono-Italic.woff2') format('woff2');
}
/* ------------------------------------------------------------------ */
/* Hermes Agent — Nous DS with the LENS_0 (Hermes teal) lens applied */
/* statically. Mirrors nousnet-web/(hermes-agent)/layout.tsx so the */
/* canonical Hermes palette is the default — teal canvas + cream */
/* accent — without relying on leva/gsap at runtime. */
/* ------------------------------------------------------------------ */
:root {
/* LENS_0 — from design-language/src/ui/components/overlays/index.tsx.
These are the defaults for the `default` (Hermes Teal) dashboard theme;
ThemeProvider rewrites them as inline styles when a user switches themes. */
--foreground: color-mix(in srgb, #ffffff 0%, transparent);
--foreground-base: #ffffff;
--foreground-alpha: 0;
--midground: color-mix(in srgb, #ffe6cb 100%, transparent);
--midground-base: #ffe6cb;
--midground-alpha: 1;
--background: color-mix(in srgb, #041c1c 100%, transparent);
--background-base: #041c1c;
--background-alpha: 1;
/* Consumed by <Backdrop />; also theme-switchable. */
--warm-glow: rgba(255, 189, 56, 0.35);
--noise-opacity-mul: 1;
/* Typography tokens — rewritten by ThemeProvider. Defaults match the
system stack so themes that don't override look native. */
--theme-font-sans: system-ui, -apple-system, "Segoe UI", Roboto,
"Helvetica Neue", Arial, sans-serif;
--theme-font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo,
Consolas, monospace;
--theme-font-display: var(--theme-font-sans);
--theme-base-size: 15px;
--theme-line-height: 1.55;
--theme-letter-spacing: 0;
/* Layout tokens. */
--radius: 0.5rem;
--theme-radius: 0.5rem;
--theme-spacing-mul: 1;
--theme-density: comfortable;
}
/* Theme tokens cascade into the document root so every descendant inherits
the font stack, base size, and letter spacing without explicit calls. */
html {
font-family: var(--theme-font-sans);
font-size: var(--theme-base-size);
line-height: var(--theme-line-height);
letter-spacing: var(--theme-letter-spacing);
height: 100dvh;
max-height: 100dvh;
overflow: hidden;
}
body {
font-family: var(--theme-font-sans);
min-height: 0;
height: 100%;
margin: 0;
overflow: hidden;
}
code, kbd, pre, samp, .font-mono, .font-mono-ui {
font-family: var(--theme-font-mono);
}
/* Density: scale the shadcn spacing utilities via a multiplier. The DS
components use `p-N` / `gap-N` / `space-*` classes which resolve against
Tailwind's spacing scale; multiplying `--spacing` at :root scales them
all proportionally in Tailwind v4. */
@theme inline {
--spacing: calc(0.25rem * var(--theme-spacing-mul, 1));
}
#root {
min-height: 0;
height: 100%;
max-height: 100%;
overflow: hidden;
}
/* Nousnet's hermes-agent layout bumps `small` and `code` to readable
dashboard sizes. Keep in sync. */
small { font-size: 1.0625rem; }
code { font-size: 0.875rem; }
/* Shadcn-compat tokens.
The dashboard's page code predates the Nous DS and uses shadcn-style
utility classes (bg-card, text-muted-foreground, border-border, etc.)
extensively. Rather than rewrite every call site, we expose those
tokens on top of the Nous palette so classes continue to resolve. */
@theme inline {
/* Remap foreground to midground so `text-foreground` / `bg-foreground`
stay visible — in LENS_0, `--foreground` itself has alpha 0. */
--color-foreground: var(--midground);
--color-card: color-mix(in srgb, var(--midground-base) 4%, var(--background-base));
--color-card-foreground: var(--midground);
--color-primary: var(--midground);
--color-primary-foreground: var(--background-base);
--color-secondary: color-mix(in srgb, var(--midground-base) 6%, var(--background-base));
--color-secondary-foreground: var(--midground);
--color-muted: color-mix(in srgb, var(--midground-base) 8%, var(--background-base));
--color-muted-foreground: color-mix(in srgb, var(--midground-base) 55%, transparent);
--color-accent: color-mix(in srgb, var(--midground-base) 10%, var(--background-base));
--color-accent-foreground: var(--midground);
--color-destructive: #fb2c36;
--color-destructive-foreground: #ffffff;
--color-success: #4ade80;
--color-warning: #ffbd38;
--color-border: color-mix(in srgb, var(--midground-base) 15%, transparent);
--color-input: color-mix(in srgb, var(--midground-base) 15%, transparent);
--color-ring: var(--midground);
--color-popover: color-mix(in srgb, var(--midground-base) 4%, var(--background-base));
--color-popover-foreground: var(--midground);
--radius-sm: calc(var(--theme-radius) - 4px);
--radius-md: calc(var(--theme-radius) - 2px);
--radius-lg: var(--theme-radius);
--radius-xl: calc(var(--theme-radius) + 4px);
}
/* Toast animations used by `components/Toast.tsx`. */
@keyframes toast-in {
from { opacity: 0; transform: translateX(16px); }
to { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
from { opacity: 1; transform: translateX(0); }
to { opacity: 0; transform: translateX(16px); }
}
/* Generic fade + dialog entrance used by popovers and confirm dialogs. */
@keyframes fade-in {
from { opacity: 0; }
to { opacity: 1; }
}
@keyframes dialog-in {
from { opacity: 0; transform: translateY(4px) scale(0.98); }
to { opacity: 1; transform: translateY(0) scale(1); }
}
/* Hide scrollbar utility — used by the header's overflow-x nav row. */
.scrollbar-none {
-ms-overflow-style: none;
scrollbar-width: none;
}
.scrollbar-none::-webkit-scrollbar {
display: none;
}
/* Plus-lighter blend used by logos/titles for a subtle glow. */
.blend-lighter {
mix-blend-mode: plus-lighter;
}
/* System UI-monospace stack — distinct from `font-courier` (Courier
Prime), used for dense data readouts where the display font would
break the grid. Routes through the theme's mono stack so themes
with a different monospace (JetBrains Mono, IBM Plex Mono, etc.)
still apply here. */
.font-mono-ui {
font-family: var(--theme-font-mono);
}
/* Subtle grain overlay for badges. */
.grain {
position: relative;
}
.grain::after {
content: '';
position: absolute;
inset: 0;
opacity: 0.12;
pointer-events: none;
background: repeating-conic-gradient(currentColor 0% 25%, #0000 0% 50%) 0 0 /
2px 2px;
}
/* When a theme provides `assets.bg`, the backdrop's <div> renders it as
a CSS background; the default filler <img> is hidden to prevent
double-compositing. Unset → initial → empty, so the :not() selector
matches and the default image stays visible. */
:root:not([style*="--theme-asset-bg:"]) .theme-default-filler {
display: block;
}
:root[style*="--theme-asset-bg:"] .theme-default-filler {
display: none;
}