@memberjunction/remote-browser-hyperbrowser

The Hyperbrowser backend driver for MemberJunction's Remote Browser channel. Hyperbrowser exposes a Chrome DevTools Protocol connect endpoint (driven by the shared CDP control kit) plus a hosted live-view URL and — unlike a pure CDP-as-a-service — a first-party agentic harness that runs its own model loop. This driver answers the backend-specific concerns behind an injectable service-client seam, so it builds and unit-tests with no network and no real @hyperbrowser/sdk.

See the Realtime Bridges Guide and /plans/realtime/realtime-bridges-architecture.md (§4d-i, the Remote Browser channel) for the full architecture.

Install

npm install @memberjunction/remote-browser-hyperbrowser

What it provides

• HyperbrowserRemoteBrowser — @RegisterClass(BaseRemoteBrowserProvider, 'HyperbrowserRemoteBrowser'). A MJ: AI Remote Browser Providers row with DriverClass = 'HyperbrowserRemoteBrowser' resolves to this driver via the ClassFactory. It extends BaseCdpRemoteBrowserProvider and implements only AcquireSession; everything else (action mapping, capability gating, screencast, Connect / Disconnect) is inherited from @memberjunction/remote-browser-cdp.
• IHyperbrowserClient — the injectable seam the driver depends on instead of the real SDK: CreateSession(options) → { SessionId, CdpEndpoint, LiveViewUrl }, StopSession(sessionId), and RunAgentTask(sessionId, intent) → { Success, CurrentUrl?, Detail? }.
• HyperbrowserSessionBackend — the ICdpSessionBackend for a live session: GetLiveViewUrl() returns the hosted live-view URL, InvokeNativeAIControl(intent) delegates to the native agentic harness via RunAgentTask and maps the result onto a RemoteBrowserActionResult, and Release() stops the session (idempotently).

Capability coverage (the Hyperbrowser seed row)

Seed row name Hyperbrowser, DriverClass = 'HyperbrowserRemoteBrowser'.

| Capability | Status | |---|---| | RawCdpControl | ✅ universal CDP substrate | | NativeAIControl | ✅ first-party agentic browse — InvokeNativeAIControl → RunAgentTask | | LiveView | ✅ hosted live-view URL | | HumanTakeover | ✅ grab-the-wheel via the hosted live view | | ScreenStreaming | ✅ | | Stealth | ✅ | | ProxyEgress | ✅ | | SessionRecording | ✅ | | PersistentContext | ✅ | | MultiTab | ✅ | | FileDownloads | ✅ | | CaptchaSolving | ✅ |

Because Hyperbrowser supports both LiveView and HumanTakeover, it can run in any control mode — AgentOnly, ViewOnly, or Collaborative.

Binding the real Hyperbrowser SDK (production)

This package ships without the real @hyperbrowser/sdk adapter — that is a deployment concern, so no SDK / API key is hard-wired here. The SDK is declared as an optional peer dependency. At startup, bind a factory that builds an IHyperbrowserClient over the real @hyperbrowser/sdk:

import { HyperbrowserRemoteBrowser, IHyperbrowserClient } from '@memberjunction/remote-browser-hyperbrowser';
// import { Hyperbrowser } from '@hyperbrowser/sdk'; // the optional peer dependency

HyperbrowserRemoteBrowser.SetClientFactory((options) => {
    // Build a thin adapter over the real @hyperbrowser/sdk.
    // Credentials/stealth/proxy arrive already resolved in `options`; never inline secrets.
    const client: IHyperbrowserClient = {
        async CreateSession(opts) {
            // …sessions.create(...), return its CDP connect URL + live-view URL
            return { SessionId, CdpEndpoint, LiveViewUrl };
        },
        async StopSession(sessionId) {
            // …sessions.stop(sessionId)
        },
        async RunAgentTask(sessionId, intent) {
            // …run the agentic harness, return { Success, CurrentUrl?, Detail? }
            return { Success: true };
        },
    };
    return client;
});

Until a factory is bound, AcquireSession throws an explicit "bind the real Hyperbrowser client" error.

Testing

Tests inject a FakeHyperbrowserClient via HyperbrowserRemoteBrowser.SetClientFactory(...) — no network, no real @hyperbrowser/sdk. Run them with:

npm run test