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rtrvr-ai/rover

Rover

CI npm License: FSL-1.1-Apache-2.0 Discord GitHub stars

Turn any website into an AI-native interface, for users, AI apps, CLIs, and autonomous agents.

Rover is the DOM-native execution engine. It reads the live page, plans the next action, and executes directly in the browser. No screenshots, no VMs, no RAG glue.

Rover V3 lives on the page surface itself: a minimized seed/presence CTA, an attachment-capable input bar, and a centered transparent action stage that stays out of the way while live DOM actions run.

RoverBook now ships as the AX layer on top of Rover:

  • agent analytics and visit replays
  • agent reviews and interviews
  • agent memory and discussion threads
  • experiment exposures tied to real task outcomes
  • tiered agent identity attribution for repeat visits and grouping

One product, two planes:

  • Runtime plane: Rover executes tasks in the browser
  • Owner plane: Rover Workspace configures the site and reads RoverBook analytics

Why Rover?

Chatbots Screenshot agents Rover
Task completion Links only Slow, remote Native speed, in-browser
Reads DOM No Vision/pixels Direct DOM + a11y tree
Latency N/A Seconds per action Milliseconds
Infrastructure Iframe/server Remote VM Zero, runs in-browser
AI / agent access No No POST /v1/tasks, handoffs, WebMCP
Open Source Varies No FSL-1.1-Apache-2.0

For websites

Drop in Rover and users get an assistant that can actually use the page.

For AI agents

Rover exposes machine-readable task resources at POST https://agent.rtrvr.ai/v1/tasks, delegated handoffs, workflow lineage, optional WebMCP task/tools discovery, and helper utilities for publishing /.well-known/rover-site.json, /.well-known/agent-card.json, and service-desc discovery metadata.

For site owners

Rover Workspace now owns both setup and AX analytics:

  • sites
  • setup
  • overview
  • analytics
  • trajectories
  • reviews
  • interviews
  • board
  • memory

For any DOM interface

The same core runtime works in websites, Chrome extensions, Electron apps, and other browser-like webviews.


Quick Start

Script tag

<script type="application/agent+json">{"task":"https://agent.rtrvr.ai/v1/tasks"}</script>
<script>
  (function () {
    var r = window.rover = window.rover || function () {
      (r.q = r.q || []).push(arguments);
    };
    r.l = +new Date();
  })();

  rover('boot', {
    siteId: 'YOUR_SITE_ID',
    publicKey: 'pk_site_YOUR_PUBLIC_KEY',
    siteKeyId: 'YOUR_SITE_KEY_ID',
    allowedDomains: ['yourdomain.com'],
    domainScopeMode: 'registrable_domain',
    apiBase: 'https://agent.rtrvr.ai',
  });
</script>
<script src="https://rover.rtrvr.ai/embed.js?v=YOUR_SITE_KEY_ID" async></script>

Publish head tags and well-known discovery files separately from the body snippet. The Workspace-generated install bundle already splits body runtime HTML from head discovery HTML for you.

Get your siteId, publicKey, and optional siteKeyId from Workspace:

  • https://rover.rtrvr.ai/workspace
  • https://www.rtrvr.ai/rover/workspace

For production installs, copy the Workspace-generated snippet rather than hand-assembling it. When RoverBook is enabled for a site, Workspace emits:

  • embed.js
  • roverbook.js
  • the inline attach block that calls enableRoverBook(...) with the correct per-site config

Workspace site mode now controls whether the generated snippet is:

  • Full Rover agent: action-capable Rover runtime
  • RoverBook analytics-only: RoverBook enabled with action tools disabled

Workspace also persists businessType, aiAccess, and sparse siteConfig.experience overrides. Runtime defaults still own the visible seed/presence cue, centered stage, transparent live-action mode, and two-card live stream unless the site owner explicitly overrides them. Mascot sound is now owner-gated: leave it off by default, enable ui.mascot.soundEnabled only when you want site visitors to control mascot audio, and use ui.muted only for the initial mute state after sound is enabled.

Script-tag installs do not need a custom identityResolver to attribute Rover-managed traffic. The primary identity path comes from task and session attribution.

Domain scope cheat sheet:

  • allowedDomains: ['example.com'] with registrable_domain allows example.com and subdomains
  • allowedDomains: ['*.example.com'] allows subdomains only, not the apex host
  • host_only makes plain entries exact-host only

npm

pnpm add @rtrvr-ai/rover @rover/roverbook
import { boot } from "@rtrvr-ai/rover";
import { enableRoverBook } from "@rover/roverbook";

const rover = boot({
  siteId: "YOUR_SITE_ID",
  publicKey: "pk_site_YOUR_PUBLIC_KEY",
  allowedDomains: ["yourdomain.com"],
  domainScopeMode: "registrable_domain",
});

enableRoverBook(rover, {
  siteId: "YOUR_SITE_ID",
  apiBase: "https://roverbook.rtrvr.ai",
  memory: {
    sharedAccess: "read_shared",
  },
  interviews: {
    questions: [
      "What was the hardest part of this task?",
      "What would you change about this site for agents?",
    ],
  },
  webmcp: {
    advertiseDelegatedHandoffs: true,
  },
});

Use npm when you want:

  • typed SDK access
  • SPA lifecycle control
  • SSR guards and framework-specific mounting
  • advanced RoverBook fallback logic such as identityResolver

See packages/sdk/README.md for the full SDK surface, and packages/roverbook/README.md for RoverBook package behavior.


Instant Preview & Preview Clients

Rover supports a preview-first workflow before a production install.

Before you try Rover on other sites, get your site config from Workspace.

There are two config sources:

  • Workspace production config: persistent siteId, publicKey, and optional siteKeyId for a live site install.
  • Hosted preview handoff config: short-lived preview identifiers and runtime session tokens created by the hosted preview control plane.

Path matrix

Path What you need Best for Persistence Mobile Managed by
Hosted Preview Signed-in URL + prompt Rover-managed demos Temporary preview session (12-minute max) Best fallback Rover
Script tag Reusable test config or exact site-scoped config + generated snippet Installing Rover on another site's code Persistent where installed Yes Workspace
Preview Helper Reusable test config, exact site-scoped config, or hosted handoff Multi-page desktop demos Re-injects after reloads/navigation No Workspace or Rover
Console Reusable test config or exact site-scoped config + generated snippet Fast DevTools demos Current page only No Workspace
Bookmarklet Reusable test config or exact site-scoped config + generated bookmarklet Drag-and-click demos Current page only Weak Workspace
Production install Workspace install snippet Real site install Persistent site config Yes Workspace

Notes:

  • Hosted Preview needs no Workspace config. Rover creates temporary preview state for you.
  • Hosted Preview is owned by the signed-in tester who creates it. The temporary runtime session is minted under that tester's uid, and Hosted Preview consumes that tester's credits.
  • Hosted Preview now boots Rover inside the hosted page itself. The hosted browser is not just a remote shell; Rover injects the preview bootstrap into that page and should reattach after top-level navigations.
  • Hosted Preview auto-runs the exact Live Test prompt inside that hosted page once Rover is ready. It is meant to feel like a Rover-managed version of ?rover=, but it does not depend on the target site already having Rover installed.
  • Hosted Preview has a hard 12-minute maximum aligned with /agent. Viewer heartbeats only refresh a short disconnect grace and do not extend the hard expiry.
  • Hosted Preview sends a best-effort close when the hosted viewer tab unloads. If that signal is missed, Rover should still close the hosted session shortly after the disconnect grace expires.
  • Hosted Preview now leases from the same shared browser pool as normal automation on that worker. With POOL_MAX_INSTANCES=1, Hosted Preview and /agent queue behind whichever side currently holds the browser.
  • Hosted Preview is sticky to one worker and one browser. If that owner dies or the lease expires, Rover should fail closed and tell you to recreate the temporary demo.
  • Hosted Preview does not try to recycle its browser after close, expiry, or failure. Rover destroys that browser before the shared pool can hand capacity back to the next request.
  • Reusable test config is the default script-tag / Preview Helper / Console / Bookmarklet path in Live Test. Rover creates one signed-in wildcard config for you, shows its expiry, and lets you renew or revoke it from Workspace Install & Test.
  • Exact site-scoped test config remains available as the advanced path when you want to validate the real allowed-domain policy of one Workspace site key.
  • Try on Other Sites still lives under Workspace Install & Test and Live Test, but manual JSON paste is now the advanced exact-policy path rather than the default.
  • Production install is the Workspace snippet on your real site, not the same thing as generic testing on other sites.
  • Installed-site deep links like ?rover= remain the real site-owned/browser-first path. Hosted Preview stays separate from that billing and site-key context even if the target site is already installed.
  • Live Test now shows Rover's hosted browser directly on the page for Hosted Preview. Open hosted shell is the full-screen version of that same temporary cloud-browser fallback.
  • Script tag is the main "install on another site" path in Live Test when you can edit the target site's code.
  • Bookmarklet is a drag-only current-page test control in Rover's UI. Drag it from Live Test into your bookmarks bar, then click it on the target site.

Troubleshooting

  • This API key is missing capability: roverEmbed The selected Workspace key is not embed-ready. Go back to Workspace and create or rotate an embed-enabled site key, then copy the fresh test config JSON again.
  • Open hosted shell does nothing Hosted Preview should show Rover's hosted browser inline in Live Test and also open the dedicated hosted viewer route in a new tab. If neither works, recreate the temporary demo and try again.
  • The hosted browser opens but Rover never appears inside the page Hosted Preview should inject the same short-lived preview bootstrap into the hosted page and re-inject it after top-level navigations. If the browser opens but Rover never boots, recreate the demo after deploying the latest backend and web-agent changes.
  • Hosted Preview keeps polling /vnc/sessions and the viewer stays blank Hosted Preview should provision a dedicated Rover-managed browser session first, then run Rover on that same browser. If you only see repeated session polling with a blank viewer, the hosted-browser session never became viewer-ready; recreate the demo after deploying the latest backend and website changes.
  • Hosted Preview is waiting on another browser task Hosted Preview and normal automation share the same pool. If the only browser on that worker is busy, Hosted Preview waits for it to be released.
  • Hosted Preview expired while the viewer was still open That is expected once the hard 12-minute limit is reached. Viewer polling only refreshes the short disconnect grace, not the absolute hosted-preview expiry.
  • Hosted Preview says it cannot run because there are no credits Hosted Preview bills the signed-in tester who created the temporary demo. Sign in first, then add credits or upgrade your plan before creating or continuing the demo.
  • Closing the hosted tab did not close the demo immediately Rover sends a best-effort close on pagehide and beforeunload. If the browser or network drops that signal, the hosted session should still close after the short disconnect grace.
  • Hosted browser says it needs a restart or stale owner Hosted Preview sessions are intentionally fail-closed if their owner worker dies or loses the lease. Recreate the temporary demo instead of waiting for the old browser to recover.
  • Does Hosted Preview reuse the browser after it closes? No. Hosted Preview destroys its browser on close, expiry, or failure so the next /agent or hosted request does not inherit leftover site state.
  • React has blocked a javascript: URL Delete the old Rover bookmark and recreate it from the latest Live Test page. Rover's bookmarklet must be dragged from the dedicated drag control; it should not be rendered as a normal clickable React link.
  • Console snippet or Bookmarklet worked once, then stopped That is expected after a full page reload. Use the Preview Helper for the reliable multi-page desktop path.
  • Rover still does not appear on a target site Check that the target host is inside allowedDomains. Some sites also block injection with strict CSP rules; use Hosted Preview or the Preview Helper fallback when that happens.

Client-side preview tooling lives in this open-source repo:

  • Preview Helper App: MV3 Chrome extension that can inject Rover from generic config JSON or auto-hydrate from hosted preview handoff URLs.
  • SDK Preview Helpers: createRoverConsoleSnippet(...), createRoverBookmarklet(...), createRoverScriptTagSnippet(...), and attachLaunch(...).
  • Try on Other Sites: the reusable-config walkthrough for script tag install plus Helper, Console, and Bookmarklet testing flows.
  • Instant Preview Architecture: how the OSS clients fit with the hosted preview backend and website.
  • Instant Preview API Docs: signed-in hosted preview route guide with curl examples and field reference.
  • Instant Preview OpenAPI Spec: machine-readable hosted preview contract.

Hosted preview creation itself stays outside this repo on purpose. The hosted control plane owns preview auth, short-lived token minting, launch/session persistence, site-key provisioning, and cloud-browser fallback. This repo stays focused on the browser runtime, SDK surface, and public client tools that developers can inspect and extend.

If you want to play with Rover immediately:

Get config from Workspace

For production or generic helper/SDK usage:

  1. Open Rover Workspace.
  2. Create or rotate a site key so Workspace reveals the full pk_site_* value.
  3. Use Copy test config JSON for portable testing on other sites.
  4. Use Copy install snippet for your real production site.
  5. If you want the full walkthrough, read docs/TRY_ON_OTHER_SITES.md.
  6. For the closest thing to one-click Helper injection, open the website tool and use Open target with helper.

Play via the hosted website

For short-lived demos:

  1. Sign in to Rover Instant Preview.
  2. Choose either Use Rover temporary demo or Use reusable test config.
  3. The temporary demo path creates short-lived preview state for a target URL and prompt.
  4. Hosted Preview uses the signed-in tester's credits and auto-runs that exact prompt inside Rover's hosted page.
  5. The reusable test-config path auto-loads or creates your wildcard tester config for script tag plus Preview Helper / Console / Bookmarklet. Use the advanced exact site-config section only when you want to validate a real Workspace site key.
  6. Treat preview tokens as temporary demo credentials, not as production site keys.

Direct hosted preview API

If you want to call the hosted preview control plane directly:

Use the hosted API when you want signed-in preview creation, preview tokens, hosted fallback, share links, and Workspace conversion. Use the SDK/helper docs when you want the client-side pieces only.


Features

  • Browser-first deep links: trigger tasks via ?rover= and ?rover_shortcut=
  • Agent Task Protocol (ATP): POST /v1/tasks for public machine-readable task execution
  • Cross-site workflows and handoffs: delegate from one Rover-enabled site to another with shared workflow lineage
  • WebMCP support: discoverable Rover and RoverBook tools for compatible agents
  • Universal DOM agent: websites, extensions, Electron, any DOM environment
  • Autonomous navigation: multi-step tasks across real pages
  • Shadow DOM widget: isolated UI that does not collide with host styling
  • Backend-powered planning: server-authoritative planner and run lifecycle
  • Execution guardrails: domain scoping, navigation policy, and session isolation
  • Accessibility-first targeting: semantic/a11y tree instead of brittle selectors
  • Framework agnostic: React, Vue, Angular, vanilla JS, WordPress, Shopify
  • Voice input: browser-native dictation
  • Cloud checkpointing: session state synced across tabs and reloads
  • RoverBook AX layer: analytics, visit replays, reviews, interviews, memory, board, experiments
  • Agent identity attribution: self-reported, heuristic, and anonymous attribution with stable memory keys

AI / Agent Access - Agent Task Protocol (ATP)

Rover-enabled sites support browser-first convenience and machine-first task resources.

Machine path

This is the canonical public task protocol:

POST https://agent.rtrvr.ai/v1/tasks
Content-Type: application/json

{
  "url": "https://example.com",
  "goal": "Find the pricing page",
  "agent": {
    "key": "gpt-5.4-demo-agent",
    "name": "GPT-5.4 Demo Agent",
    "vendor": "OpenAI",
    "model": "gpt-5.4"
  }
}

Or:

POST https://agent.rtrvr.ai/v1/tasks
Content-Type: application/json

{
  "url": "https://example.com",
  "shortcut": "checkout_flow"
}

The response returns a canonical task URL that supports:

  • JSON polling / final result
  • SSE
  • NDJSON
  • continuation input
  • cancel
  • workflow lineage URLs
  • browser receipt URLs such as open
  • optional readable browserLink aliases when safe

Anonymous AI callers do not need siteId, publicKey, or siteKeyId. Those values are only for website owners installing Rover.

If the site emits the discovery marker below, AI tools can detect ATP support directly from HTML:

<script type="application/agent+json">{"task":"https://agent.rtrvr.ai/v1/tasks"}</script>

For stronger discovery, publish /.well-known/rover-site.json as Rover's authoritative rich profile, publish /.well-known/agent-card.json as the broad interop card, add a Link: </.well-known/agent-card.json>; rel="service-desc" header for generic agents, and include source-visible discovery tags from the SDK helper createRoverAgentDiscoveryTags(...).

Delegated handoffs

Rover tasks can delegate part of a workflow to another Rover-enabled site:

  • create the root task with POST /v1/tasks
  • delegate with POST /v1/tasks/{id}/handoffs
  • follow aggregated lineage with GET /v1/workflows/{id}

Handoff creation also accepts optional agent metadata. If the child request does not provide a new agent, the parent attribution is inherited.

Receiving sites must explicitly opt in:

  • aiAccess.enabled = true
  • aiAccess.allowDelegatedHandoffs = true

Heuristic attribution inputs

When a caller does not send explicit agent metadata, Rover can still attribute heuristically from:

  • User-Agent
  • Signature-Agent
  • Signature
  • Signature-Input
  • X-RTRVR-Client-Id

Those inputs help grouping and labeling, but they do not imply verified_signed or signed_directory_only by themselves.

Browser-first path

Prompt deep links:

https://example.com?rover=book+a+flight+to+tokyo

Shortcut deep links:

https://example.com?rover_shortcut=checkout_flow

These are browser convenience flows. If you need structured task results back, use /v1/tasks.

For the full external-agent contract, see SKILLS.md.


RoverBook

RoverBook is the AX layer for Rover-managed traffic.

It answers the question: what happened when an AI agent used my site?

Rover executes the task. RoverBook records and surfaces what happened:

  • analytics: visits, outcomes, tool usage, path transitions, AX score
  • trajectories: run-level summaries and replay-style previews
  • reviews: explicit ratings and derived summaries
  • interviews: structured answers about what was hard, confusing, or broken
  • memory: notes that come back on the next visit
  • board: app-store / Reddit style posts, replies, and votes
  • experiments: variant exposures tied to visit outcomes

RoverBook uses Rover's real runtime boundaries:

  • visit = one Rover task (visitId = taskId)
  • run = one execution attempt inside that visit
  • event = lifecycle or tool event emitted during that run

Important contract split:

  • runtime/site-tag writes use signed Rover session auth via requestSigned(...)
  • owner workspace analytics read Firestore directly under owner-auth rules
  • owner workspace private settings stay backend-mediated for masked secrets and site-owner mutations
  • per-site webhook secrets and interview questions stay private to the owner plane

RoverBook in Rover Workspace

RoverBook no longer lives as a separate dashboard surface. It now sits inside Rover Workspace:

  • sites
  • setup
  • overview
  • analytics
  • trajectories
  • reviews
  • interviews
  • board
  • memory

Use setup for:

  • site key and domain policy management
  • install snippet and site config
  • RoverBook interview prompts
  • per-site webhook subscriptions

Use the RoverBook views for read-only AX analytics.


Agent Identity Attribution

Rover and RoverBook use a tiered attribution model for visiting agents.

Resolution order:

  1. verified signed signal
  2. explicit agent metadata on public tasks, handoffs, or WebMCP tools
  3. heuristic attribution from headers / user-agent
  4. advanced owner identityResolver
  5. anonymous fallback

Trust tiers are:

  • verified_signed
  • signed_directory_only
  • self_reported
  • heuristic
  • anonymous

Unsigned headers never escalate above heuristic. verified_signed requires real signed verification, and signed_directory_only is reserved for directory-backed discovery without full signed request verification.

Memory keys resolve as:

  • agent.key
  • vendor:<normalized-vendor-or-signature-agent>
  • anon:<anonymousCallerKey>

That is what makes repeat-visit memory and attribution grouping stable.

See docs/AGENT_IDENTITY.md for the full model.


Honest Boundaries

RoverBook is explicit about what it can and cannot see:

  • full-fidelity trajectories are guaranteed for Rover-managed tasks
  • third-party agents that never touch Rover, WebMCP, or public Rover tasks are not magically reconstructed
  • derived reviews and interview answers are marked derived, not presented as literal quoted agent text
  • delegated cross-site work uses public Rover tasks and handoffs, not an ad hoc postMessage side channel

Roadmap

Verified agent identity

Continue aligning Rover attribution with real signature-backed and bot-auth verification while keeping unsigned headers in heuristic.

Open compatibility suite

Ship Rover's discovery ladder publicly: silent, beacon, integrated, and debug, plus compatibility tests across raw HTTP agents, agent-card consumers, DOM/a11y agents, screenshot/VLM agents, and WebMCP-capable browsers.

Richer experiment and workflow analytics

Expand variant comparison, workflow lineage analytics, and owner-facing rollups across multi-site task graphs.

Voice accessibility

Continue pushing browser-native voice-driven workflows and voice-first execution surfaces.


Architecture

@rtrvr-ai/rover / @rover/sdk
  +-- @rover/ui
  +-- @rover/bridge
  |     +-- @rover/dom
  |     |     +-- @rover/a11y-tree
  |     |     +-- @rover/instrumentation
  |     |     +-- @rover/shared
  |     +-- @rover/instrumentation
  |     +-- @rover/a11y-tree
  |     +-- @rover/shared
  +-- @rover/shared

@rover/worker
  +-- @rover/shared

@rover/roverbook
  +-- Rover public runtime events
  +-- requestSigned(...)
  +-- registerPromptContextProvider(...)

Runtime flow:

  • Rover creates and executes tasks
  • Rover emits public lifecycle and tool events
  • RoverBook listens, builds visits/runs/events, and writes signed analytics
  • owner-auth workspace analytics read the resulting AX data from Firestore
  • owner-auth private settings stay on backend callables

See docs/ARCHITECTURE.md for the full end-to-end picture.

Monorepo Structure

Package Description
packages/sdk Main SDK entry point
packages/roverbook RoverBook client package for analytics, memory, reviews, interviews, board, experiments
packages/worker Web Worker agent loop
packages/bridge MessageChannel RPC layer
packages/ui Shadow DOM chat widget
packages/dom DOM snapshots and tool execution
packages/a11y-tree Accessibility tree generator
packages/instrumentation Event listener capture
packages/shared Shared types and constants
packages/system-tool-utilities System tool helpers
packages/tsconfig Shared TypeScript config
apps/demo Vite demo application

Documentation

Doc For Description
SDK Reference Integrators Full API, config, framework guides, CSP, run lifecycle, signed requests
RoverBook Package Integrators RoverBook config, memory, reviews, interviews, board, experiments
Integration Guide Integrators Setup, Workspace flow, RoverBook install path, troubleshooting
Agent Identity Integrators Trust tiers, attribution order, memory keys, runtime propagation
External Agent Guide AI / CLI / agents Discovery marker, /v1/tasks, workflows, handoffs, SSE, NDJSON, continuation
Architecture Contributors Package graph, runtime flow, RoverBook integration points
Security Model Security Threat model, owner/runtime auth split, attribution trust tiers
Guardrails Security Domain scoping, navigation policies
Testing Contributors Local testing and debugging
Licensing FAQ Legal What you can and cannot do

Development

# Install dependencies
pnpm install

# Build all packages
pnpm build

# Start the demo app
pnpm dev

# Lint
pnpm lint

Prerequisites

Releasing

See RELEASE.md for detailed instructions.

# Option A: Trigger via GitHub Actions UI (creates a release PR)
# Option B: Local
git checkout -b release/v0.1.2
pnpm version:bump 0.1.2
git add -A && git commit -m "chore: bump version to 0.1.2"
git push origin release/v0.1.2
gh pr create --title "chore: release v0.1.2" --base main

# After PR is merged, push the tag to trigger npm publish
git checkout main && git pull
git tag v0.1.2 && git push origin v0.1.2

Contributing

See CONTRIBUTING.md for guidelines.

License

FSL-1.1-Apache-2.0 - Functional Source License with Apache 2.0 future license.

See LICENSING.md for full details.

Links

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Turn any web interface into an AI agent — for humans and machines. Open-source, DOM-native SDK. Sub-second actions, no screenshots, no VMs. Websites, Chrome extensions, Electron apps, and more.

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