# io.github.devinwang/cloak-browser-mcp (npm · @devinwangd/cloak-browser-mcp)

Playwright-compatible MCP server on CloakBrowser stealth Chromium: 86 tools, humanized input.

- Trust score: 71/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `@devinwangd/cloak-browser-mcp`: 71/100 (this document), [markdown](https://verifymcp.io/servers/devinwang-cloak-browser-mcp/devinwangd-cloak-browser-mcp.md), [page](https://verifymcp.io/servers/devinwang-cloak-browser-mcp/devinwangd-cloak-browser-mcp)

## Channel facts

- Registry: `npm`
- Package: `@devinwangd/cloak-browser-mcp`
- Version: `0.2.0`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 81/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - 33 of 101 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to devinwang/cloak-browser-mcp).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 14 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 65/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 2246 tokens (~64/item across 35 items; 35 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 83/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 49% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "browser_drop" implies "drop" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 35 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the io.github.devinwang/cloak-browser-mcp server?

io.github.devinwang/cloak-browser-mcp runs locally as an npm package, launched with npx -y @devinwangd/cloak-browser-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add devinwang-cloak-browser-mcp -- npx -y @devinwangd/cloak-browser-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "devinwang-cloak-browser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@devinwangd/cloak-browser-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "devinwang-cloak-browser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@devinwangd/cloak-browser-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add devinwang-cloak-browser-mcp -- npx -y @devinwangd/cloak-browser-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "devinwang-cloak-browser-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@devinwangd/cloak-browser-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add devinwang-cloak-browser-mcp --command npx --arg -y --arg @devinwangd/cloak-browser-mcp
```

### Hermes

```yaml
mcp_servers:
  devinwang-cloak-browser-mcp:
    command: "npx"
    args: ["-y", "@devinwangd/cloak-browser-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "devinwang-cloak-browser-mcp": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@devinwangd/cloak-browser-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add devinwang-cloak-browser-mcp -t stdio -c npx -a -y @devinwangd/cloak-browser-mcp
```

### Other

```json
{
  "mcpServers": {
    "devinwang-cloak-browser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@devinwangd/cloak-browser-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-24 (score 71, −5)

- [security regression] CVE-2023-54404 affects this package: high
- [security regression] Known CVEs: pass → fail

### 2026-10-22 (score 76, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-21 (score 61)

First indexed and scored.

## MCP tools (35)

### `browser_navigate` (~63 tokens)

Load a URL in the active tab. Returns a fresh snapshot after navigation.

Input parameters:

- `timeoutMs` (number)
- `url` (string, required): Absolute URL to load. Subject to --allowed-domains / --blocked-domains.
- `waitUntil` (string)

### `browser_navigate_back` (~21 tokens)

Go back one entry in the active tab's history.

### `browser_tabs` (~86 tokens)

List, create, switch between, or close tabs.

Input parameters:

- `action` (string, required)
- `id` (string): Tab id (e.g., t2) for switch/close. Takes precedence over index.
- `index` (number): Tab index (0-based) for switch/close. Defaults to active when omitted.
- `url` (string): Initial URL when action=new.

### `browser_click` (~88 tokens)

Click an element by ref or selector.

Input parameters:

- `button` (string)
- `doubleClick` (boolean)
- `element` (string): Human-readable element description for logging only.
- `modifiers` (array)
- `target` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).

### `browser_type` (~110 tokens)

Type text into an editable field. Use --humanize for natural per-character timing.

Input parameters:

- `element` (string): Human-readable element description for logging only.
- `slowly` (boolean): Per-character delay; pairs well with --humanize.
- `submit` (boolean): Press Enter after typing.
- `target` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).
- `text` (string, required)

### `browser_hover` (~63 tokens)

Hover over an element.

Input parameters:

- `element` (string): Human-readable element description for logging only.
- `target` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).

### `browser_drag` (~74 tokens)

Drag from one element to another.

Input parameters:

- `endElement` (string)
- `endTarget` (required)
- `startElement` (string)
- `startTarget` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).

### `browser_drop` (~93 tokens)

Drop files or data onto an element.

Input parameters:

- `data` (object): MIME → text payload for synthetic drag-drop.
- `element` (string): Human-readable element description for logging only.
- `paths` (array): Absolute file paths to drop.
- `target` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).

### `browser_select_option` (~78 tokens)

Select one or more options in a <select> dropdown.

Input parameters:

- `element` (string): Human-readable element description for logging only.
- `target` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).
- `values` (array, required)

### `browser_press_key` (~42 tokens)

Send a single key or key combination at page level.

Input parameters:

- `key` (string, required): Playwright key string, e.g. Enter, Control+A, ArrowDown.

### `browser_handle_dialog` (~40 tokens)

Respond to the next dialog (alert/confirm/prompt/beforeunload).

Input parameters:

- `accept` (boolean, required)
- `promptText` (string)

### `browser_file_upload` (~50 tokens)

Upload files to the active file chooser. Paths must be inside --upload-allow-dir if set.

Input parameters:

- `paths` (array, required): Absolute file paths. Constrained to --upload-allow-dir if set.

### `browser_fill_form` (~24 tokens)

Populate multiple form fields in one call.

Input parameters:

- `fields` (array, required)

### `browser_scroll` (~88 tokens)

Scroll the page or an element by a pixel amount.

Input parameters:

- `amount` (number): Pixels (default 600).
- `direction` (string)
- `element` (string): Human-readable element description for logging only.
- `target` (string, required): Element ref like e3 from a prior browser_snapshot, OR a raw Playwright selector (css=, xpath=, text=, role=).

### `browser_snapshot` (~35 tokens)

Capture an accessibility-tree snapshot of the active page. Returns a structured outline with [eN] refs you can pass to interaction tools.

### `browser_find` (~158 tokens)

Search the accessibility snapshot of the current page for text or a regular expression. Returns matching snapshot nodes with a few lines of context, each under its path from the root, which is cheaper than a full snapshot when you only need to locate an element and its ref.

Input parameters:

- `filename` (string): Save results to this file instead of returning them in the response.
- `regex` (string): Regular expression to search for in the page snapshot. Case-sensitive by default; wrap the pattern in slashes to add flags, e.g. "/error/i". Provide either text or regex, not both.
- `text` (string): Plain text to search for in the page snapshot (case-insensitive substring match). Provide either text or regex, not both.

### `browser_emulate_media` (~112 tokens)

Emulate CSS media features for the page, for example switch between the light and dark color scheme. Omitted parameters are left unchanged; null clears an override.

Input parameters:

- `colorScheme`: Emulates the prefers-color-scheme media feature.
- `contrast`: Emulates the prefers-contrast media feature.
- `forcedColors`: Emulates the forced-colors media feature.
- `media`: Changes the CSS media type of the page.
- `reducedMotion`: Emulates the prefers-reduced-motion media feature.

### `browser_take_screenshot` (~87 tokens)

Capture a screenshot of the page or a specific element.

Input parameters:

- `element` (string)
- `fullPage` (boolean)
- `quality` (number)
- `saveAs` (string): If set, also write the image to this absolute path.
- `target` (string): If set, screenshot just this element (ref or selector).
- `type` (string)

### `browser_console_messages` (~34 tokens)

Retrieve buffered console/pageerror output for the active tab.

Input parameters:

- `level` (string)
- `limit` (number)

### `browser_wait_for` (~67 tokens)

Wait for time, text appearance/disappearance, or selector state.

Input parameters:

- `selector` (string)
- `state` (string)
- `text` (string)
- `textGone` (string)
- `timeMs` (number)
- `timeoutMs` (number)

### `browser_resize` (~26 tokens)

Resize the viewport.

Input parameters:

- `height` (number, required)
- `width` (number, required)

### `browser_evaluate` (~88 tokens)

Run a JavaScript function inside the page. Function source must be an arrow or function expression.

Input parameters:

- `element` (string)
- `function` (string, required): JS function source: must be an arrow or function expression. Receives the page (or element) and returns a JSON-serializable value.
- `target` (string): If set, runs the function with this element as argument.

### `cloak_set_fingerprint` (~155 tokens)

Apply a fingerprint profile to the active context. Some fields (seed, GPU, screen) require recreating the context — current pages will be reopened on the same URL.

Input parameters:

- `deviceMemoryGB` (number)
- `gpuRenderer` (string)
- `gpuVendor` (string)
- `hardwareConcurrency` (number)
- `platform` (string)
- `screenHeight` (number)
- `screenWidth` (number)
- `seed` (number): Deterministic canvas/WebGL/audio seed.
- `storageQuotaMB` (number)
- `uaBrand` (string): Browser brand for navigator.userAgentData (e.g. 'Google Chrome').
- `uaBrandVersion` (string)

### `cloak_set_timezone` (~33 tokens)

Live-override the timezone for the active context via CDP (no relaunch).

Input parameters:

- `timezone` (string, required)

### `cloak_set_locale` (~28 tokens)

Override navigator.language and Accept-Language for the active context.

Input parameters:

- `locale` (string, required)

### `cloak_set_geolocation` (~83 tokens)

Set the geolocation reported by navigator.geolocation. Pass fromProxyIp=true to auto-resolve from proxy exit IP.

Input parameters:

- `accuracy` (number)
- `fromProxyIp` (boolean): If true, resolve geolocation from the configured proxy's exit IP via cloak's geoip backend.
- `latitude` (number)
- `longitude` (number)

### `cloak_set_proxy` (~54 tokens)

Replace the current proxy. This recreates the BrowserContext (state is preserved if --profile-dir was used; otherwise cookies are lost).

Input parameters:

- `proxy` (string, required): New proxy URL. Switching mid-session recreates the context.

### `cloak_detection_test` (~59 tokens)

Load a well-known bot-detection probe page and dump its key result fields.

Input parameters:

- `customUrl` (string): Override probe URL.
- `suite` (string): Which probe to load. Default = sannysoft (free, no captchas).

### `cloak_stealth_audit` (~53 tokens)

Programmatic stealth audit. Reports navigator.webdriver, plugin count, WebGL vendor/renderer, languages, user agent, hardwareConcurrency, deviceMemory, permissions, chrome.runtime presence, and a canvas fingerprint hash.

### `cloak_request_signal_inspect` (~77 tokens)

Open the target URL in an ephemeral background tab and capture per-request connection signals: response status, security details (TLS protocol/issuer), response headers, and request headers (Accept-Language, User-Agent, Sec-CH-UA-*).

Input parameters:

- `url` (string, required): Target URL whose connection signals (TLS, headers) we capture.

### `cloak_persistent_profile_create` (~44 tokens)

Create a fresh persistent profile directory under ~/.cloak-browser-mcp/profiles/<name>. Use as --profile-dir on next launch.

Input parameters:

- `name` (string, required)

### `cloak_persistent_profile_list` (~24 tokens)

List all profile directories under ~/.cloak-browser-mcp/profiles/.

### `cloak_persistent_profile_delete` (~49 tokens)

Delete a profile directory. Requires confirm=true. The active session is unaffected.

Input parameters:

- `confirm` (boolean, required): Required — confirms you intend to wipe this profile.
- `name` (string, required)

### `cloak_binary_info` (~29 tokens)

Report installed CloakBrowser binary version, tier (free or pro), platform, and cache path.

### `cloak_binary_update` (~31 tokens)

Force CloakBrowser to check for and download the latest Chromium build. May take several minutes (~200MB).

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/devinwang-cloak-browser-mcp/devinwangd-cloak-browser-mcp#diagnostics

## Score history

- 2026-11-05: 71
- 2026-11-04: 71
- 2026-11-03: 71
- 2026-11-02: 71
- 2026-11-01: 71
- 2026-10-31: 71
- 2026-10-30: 71
- 2026-10-29: 71
- 2026-10-28: 71
- 2026-10-27: 71
- 2026-10-26: 71
- 2026-10-25: 71
- 2026-10-24: 71
- 2026-10-23: 76
- 2026-10-22: 76
- 2026-10-21: 61

## Common questions

### What is the io.github.devinwang/cloak-browser-mcp server?

io.github.devinwang/cloak-browser-mcp is listed in the public MCP registry as io.github.devinwang/cloak-browser-mcp. Playwright-compatible MCP server on CloakBrowser stealth Chromium: 86 tools, humanized input. This page covers its npm package (@devinwangd/cloak-browser-mcp).

### Is the io.github.devinwang/cloak-browser-mcp server safe to use?

io.github.devinwang/cloak-browser-mcp scores 71 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.devinwang/cloak-browser-mcp server expose?

io.github.devinwang/cloak-browser-mcp exposes 35 tools: browser_navigate, browser_navigate_back, browser_tabs, browser_click, browser_type, and 30 more. Their descriptions and schemas cost roughly 2,246 tokens of context every time the server is loaded.

### Is the io.github.devinwang/cloak-browser-mcp server still maintained?

io.github.devinwang/cloak-browser-mcp is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the io.github.devinwang/cloak-browser-mcp server under?

io.github.devinwang/cloak-browser-mcp declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@devinwangd/cloak-browser-mcp
- Socket report: https://socket.dev/npm/package/@devinwangd/cloak-browser-mcp
- Repository: https://github.com/devinwang/cloak-browser-mcp
- Changelog RSS feed: https://verifymcp.io/servers/devinwang-cloak-browser-mcp/devinwangd-cloak-browser-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/devinwang-cloak-browser-mcp/devinwangd-cloak-browser-mcp.json
- HTML version of this page: https://verifymcp.io/servers/devinwang-cloak-browser-mcp/devinwangd-cloak-browser-mcp