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Shade/packages/shade-widgets
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release(v4.2.1): fix concurrent-ratchet desync via OutboundQueue waiter cursor
Pull-mode httpClient + drainer + parallel RPCs against the same peer
deteriorated after ~10s with `DecryptionError`. Two bugs combined:

- `OutboundQueue.enqueue` woke `drain` waiters with a `since=0`
  snapshot, replaying already-processed events into
  `Shade.acceptTransferEnvelope` → `manager.decrypt` twice. The
  duplicate consumed an already-used skipped key and corrupted the
  Double Ratchet receive chain.

- `ratchetDecrypt` then propagated the corruption: a same-DH
  message behind the chain with no cached skipped key fell through
  to `kdfChainKey` on the ahead state and rewound `chain.counter`,
  permanently desyncing the chain.

Fix `OutboundQueue` to honor each waiter's `since`, and harden
`ratchetDecrypt` so any future duplicate fails cleanly without
mutating state. Adds regression coverage at all three layers.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-04 22:58:26 +02:00
..

@shade/widgets

Embeddable React widgets for live Shade observability. Drop them into any React dashboard (Nova, Orchestrator, your own apps) to show what's happening in your Shade deployment.

Install

bun add @shade/widgets react react-dom

Quick start

import { ShadeProvider, IdentityCard, SessionList, RecentActivity } from '@shade/widgets';

function MyDashboard() {
  return (
    <ShadeProvider
      observerUrl="https://shade.example.com/shade-observer"
      token={process.env.SHADE_TOKEN!}
    >
      <IdentityCard />
      <SessionList />
      <RecentActivity />
    </ShadeProvider>
  );
}

You need a running @shade/observer endpoint for the widgets to talk to.

Components

Component Description
<IdentityCard /> Your fingerprint, registration ID, init/rotation timestamps
<SessionList /> Active Shade sessions with per-session message counts and DH ratchet steps
<PrekeyStock lowThreshold={5} /> Gauge of remaining one-time prekeys with low-stock warning
<RecentActivity limit={50} /> Live SSE feed of events flowing through the system
<ServerStatus /> Prekey server stats (registered identities, fetches, replenishes, rate limits)
<FingerprintCompare /> Paste a safety number to verify it matches your identity
<WidgetCatalog /> Meta-widget letting users pick which widgets to display

Letting users pick widgets

<ShadeProvider observerUrl="..." token="...">
  <WidgetCatalog
    available={['identity', 'sessions', 'prekeys', 'activity', 'server']}
    defaultLayout={['identity', 'sessions', 'activity']}
  />
</ShadeProvider>

User selections persist to localStorage. Pass onLayoutChange to override with your own persistence.

Theming

<ShadeProvider observerUrl="..." token="..." themeMode="auto">

Modes: dark (default), light, auto (matches prefers-color-scheme).

Each widget renders self-contained CSS via inline styles — no Tailwind, no external CSS file, no conflicts with your host app.

Hooks

For custom layouts, use the underlying hooks directly:

import { useShadeState, useShadeEvents } from '@shade/widgets';

function CustomWidget() {
  const { state, loading } = useShadeState();
  const { events, connected } = useShadeEvents();
  // ... render whatever you want
}

Polling interval

Default poll for /api/state is 5 seconds. Override:

<ShadeProvider observerUrl="..." token="..." pollIntervalMs={2000}>

The SSE event stream updates instantly regardless of poll interval.