dsh-soundscape 🔊

> A session soundscape for the DeepSeek Harness Web GUI: turn-complete celebration (synthesized fanfare + confetti), blocked-on-user alerts, error buzz, send clack, and optional typing ambience. Zero audio assets, zero core changes, plus a ctx.soundscape service for other plugins.

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A DeepSeek Harness (DSH) web plugin that gives the agent's turns an audio identity: synthesized WebAudio feedback when a turn starts, succeeds, fails, or blocks on you — and a confetti burst when work completes. Every sound is generated live by oscillators and envelopes — no audio files, no network requests, no core modifications. Install, restart, and it works; tune it per-sound in the settings page.

✨ Features

• Zero audio assets: pure WebAudio oscillator synthesis.
• Zero core changes: only official client-plugin seams (conversation.input.dock / conversation.session.header.actions / settings.section).
• Durable settings: the soundscape settings namespace, saved immediately.
• Cross-plugin service: ctx.soundscape.play(name) / ctx.soundscape.celebrate() for other client plugins.
• HMR friendly: every registration is a ctx.effect; hot reload cleans up automatically.

📦 Install

Prereqs: DeepSeek Harness (dsh web works), Node ≥ 22.19, pnpm.

# From GitHub
dsh plugin --profile web add "github:Blaczz/dsh-soundscape#main"

# Local directory (development)
cd dsh-soundscape && npm install --legacy-peer-deps && npm run build
dsh plugin --profile web add ./dsh-soundscape

# Local link
dsh plugin --profile web add link:./dsh-soundscape

Restart dsh web after install (a new plugin row needs one restart; later source changes ride HMR).

> Git installs need allowBuilds authorization: if the first add github:... fails, put the package key > under allowBuilds in ~/.dsh/profiles/web/pnpm-workspace.yaml as dsh prints, then re-run; or publish a > prebuilt npm package to skip build authorization entirely.

🎛️ Usage

1. Install, restart, open any session, send a message: - turn start → rebound clack; - successful completion → fanfare + confetti (switch to a plain ding in settings); - error/interrupt → buzz; waiting on your approval/answer → two-tone alert. 2. The session header has a 🔊/🔇 quick mute toggle (durable across restarts). 3. Settings → 🔊 音效: master switch, master volume, per-sound toggles with previews, and stream-cadence knobs.

🔌 For developers: the ctx.soundscape service

Other client plugins add soundscape to their inject and call:

export const inject = ['slots', 'soundscape']

export function apply(ctx: Context): void {
  ctx.soundscape.play('celebrate')       // one sound
  ctx.soundscape.celebrate()             // full celebration (sound + confetti)
  if (!ctx.soundscape.isEnabled()) ctx.soundscape.setEnabled(true)
}

Sound names: click send ding celebrate buzz alert greet. Each is gated by its user setting and the master volume.

🛠️ Development

npm install --legacy-peer-deps          # build deps
$env:DSH_NODE_MODULES = "$env:USERPROFILE\.dsh\profiles\node_modules"
npm run setup:dsh-workspace             # symlink the runtime @deepseek-ai/* packages
npm run verify                          # ★ one-shot local gate (clean + typecheck + test + build)
npm run typecheck                       # typecheck src + tests
npm test                                # vitest (37 tests: state machine / synth / engine / settings / manifest)
npm run build                           # tsc + tsdown → lib/
dsh web --patch ./cordis.patch.yml      # zero-install quick verification

npm run verify is the pre-push gate: the extracted pure state machine (turn-feedback.ts) plus mock AudioContext / fetch tests catch event-mapping, gating, and throttle bugs locally, no browser needed.

Layout

dsh-soundscape/
├── package.json            # dual contract: dsh.bundle.patch + dsh.client
├── cordis.patch.yml        # bundle patch layer (inserts this package)
├── tsdown.config.ts        # client bundle (__ModuleLoader__.load + purity gate)
├── scripts/                # build / clean / setup-dsh-workspace
├── src/
│   ├── index.ts            # host half: settings namespace + loopback HTTP API
│   ├── soundscape-settings.ts  # shared settings model (schema + defaults)
│   ├── settings-api.ts     # GET/PATCH settings API (loopback-only)
│   └── client/             # browser half
│       ├── index.ts        # apply: ctx.soundscape service + slot injection
│       ├── SessionListener.tsx  # conversation-snapshot diff → event sounds
│       ├── SoundEngine.ts  # WebAudio engine (lazy AudioContext)
│       ├── synth.ts        # pure synthesis primitives (oscillators + envelopes)
│       ├── confetti.ts     # zero-dependency canvas confetti particles
│       ├── HeaderMute.tsx  # session-header mute toggle
│       ├── SettingsSection.tsx # settings page (with previews)
│       └── settings-client.ts  # settings API client
└── tests/                  # manifest contract + settings patch validation

🧩 Ecosystem positioning

• Fills a gap: before this, the DSH ecosystem had no turn-complete sound/celebration effect and no blocked-on-user alert sound (desktop notifications are silent; dsh-fun-typewriter covers only typing ambience).
• Technical route: dual-sided client plugin (dsh.client + bundle patch), mirroring dsh-fun-typewriter's zero-asset WebAudio + plugin-owned settings API, extended with the ctx.soundscape cross-plugin service (the ctx.provide pattern from dsh-client-shortcuts).
• Zero core changes: everything registers through ctx.effect / ctx.slots.inject; HMR unload cleans up.

⚖️ License

MIT © 2026 Blaczz. An independent community plugin, not affiliated with DeepSeek Harness.