# Stealth Agent Browser (npm · stealth-agent-browser-mcp)

Stealth Chromium MCP server with hybrid AOM + Set-of-Mark vision and Readability extraction.

- Trust score: 58/100 (low)
- Change this week: +14
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `stealth-agent-browser-mcp`: 58/100 (this document), [markdown](https://verifymcp.io/servers/ykshah1309-stealth-agent-browser-mcp/stealth-agent-browser-mcp.md), [page](https://verifymcp.io/servers/ykshah1309-stealth-agent-browser-mcp/stealth-agent-browser-mcp)

## Channel facts

- Registry: `npm`
- Package: `stealth-agent-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 2026-08-03.

- **Supply Chain Security**: 71/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known high-severity CVE affects sharp 0.33.5, a direct dependency. A fixed version is available.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (192 of 194), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (Apache-2.0).
  - Actively maintained (last published 110 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 70/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 959 tokens (~73/item across 13 items; 13 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**: 86/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 58% of tool parameters carry a description.
- **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

### Claude

```bash
claude mcp add ykshah1309-stealth-agent-browser-mcp -- npx -y stealth-agent-browser-mcp
```

### Codex

```bash
codex mcp add ykshah1309-stealth-agent-browser-mcp -- npx -y stealth-agent-browser-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ykshah1309-stealth-agent-browser-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "stealth-agent-browser-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ykshah1309-stealth-agent-browser-mcp --command npx --arg -y --arg stealth-agent-browser-mcp
```

### Hermes

```yaml
mcp_servers:
  ykshah1309-stealth-agent-browser-mcp:
    command: "npx"
    args: ["-y", "stealth-agent-browser-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "ykshah1309-stealth-agent-browser-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "stealth-agent-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.

### 2026-08-02 (score 58, +38)

- [security regression] CVE-2025-2792 affects this package: high
- [security regression] GHSA-f88m-g3jw-g9cj affects this package: high
- [security regression] Provenance: unverified → fail
- [security regression] Known CVEs: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional] Licence: Apache-2.0

### 2026-07-31 (score 20, −6)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 26, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 44)

First indexed and scored.

## MCP tools (13)

### `browser_navigate` (~90 tokens)

Navigate the active session's page to a URL. Returns a snapshot (default: aom-only, cheapest).

Input parameters:

- `mode` (string): Snapshot mode to return after navigation. 'aom' is cheapest; 'hybrid' adds a Set-of-Mark annotated screenshot.
- `url` (string, required): Fully-qualified URL to navigate to.
- `waitUntil` (string): Page lifecycle event to wait for.

### `browser_snapshot` (~87 tokens)

Take a snapshot of the current page. 'aom' returns the accessibility YAML (token-lean); 'hybrid' adds a Set-of-Mark screenshot with numeric red boxes matching each ref.

Input parameters:

- `mode` (string): 'aom' = accessibility YAML only (cheap). 'vision' = raw screenshot. 'hybrid' = YAML + screenshot with red-boxed refs overlaid.

### `browser_click` (~92 tokens)

Click an element addressed by its ref. When SAB_HUMAN_MOUSE=true (default), the cursor travels via a Bezier path with pre-click hesitation — this defeats trajectory analyzers like Datadome that flag teleporting mice.

Input parameters:

- `button` (string)
- `clickCount` (integer)
- `ref` (string, required): A [ref=eN] id taken from the last aom/hybrid snapshot.

### `browser_type` (~62 tokens)

Type into an input or textarea addressed by ref.

Input parameters:

- `clear` (boolean): Clear the field before typing.
- `ref` (string, required): Ref of an input/textarea element.
- `submit` (boolean): Press Enter after typing.
- `text` (string, required)

### `browser_select` (~36 tokens)

Select one or more options in a <select> addressed by ref.

Input parameters:

- `ref` (string, required)
- `values` (array, required)

### `browser_scroll_read` (~75 tokens)

Scroll and return a Readability-extracted Markdown view. With deltaOnly=true, returns '(no change)' if nothing new became visible — keeps context windows lean.

Input parameters:

- `deltaOnly` (boolean): Return markdown only if the readable content changed since the last call.
- `direction` (string)
- `pixels` (integer)

### `browser_wait_for` (~66 tokens)

Wait until either some text appears on the page or a given ref resolves to a visible element.

Input parameters:

- `ref` (string): Ref that must resolve to a visible element.
- `text` (string): Substring to wait for in page text.
- `timeoutMs` (integer)

### `browser_tabs` (~41 tokens)

Manage browser tabs: list, new, close, switch.

Input parameters:

- `action` (string, required)
- `index` (integer)
- `url` (string)

### `browser_eval` (~75 tokens)

Evaluate a JS EXPRESSION in the page's MAIN execution world. Observable by page scripts; use sparingly. Prefer AOM + action tools.

Input parameters:

- `expression` (string, required): JS expression (not a statement). Executes in the page's MAIN execution world — observable by page scripts. Use sparingly; prefer AOM + actions.

### `browser_set_proxy` (~74 tokens)

Update the proxy config. Call 'browser_restart' after this for the change to take effect (browser-level constraint — an existing context cannot be re-routed).

Input parameters:

- `password` (string)
- `server` (string): e.g. http://host:port — omit to clear.
- `username` (string)

### `browser_restart` (~39 tokens)

Close the active browser session and start a fresh one with the current config. Required after 'browser_set_proxy' to actually route new requests through the proxy.

### `browser_set_proxy_pool` (~86 tokens)

Replace the residential proxy pool at runtime. Takes effect on the next 'browser_restart'. Supports sticky sessions via SAB_PROXY_STICKY_TEMPLATE.

Input parameters:

- `pool` (string): Residential proxy pool: comma-separated URLs (http://u:p@host:port) or a JSON array. Omit to clear.
- `rotation` (string): Rotation strategy. Default: per-restart.

### `browser_solve_captcha` (~136 tokens)

Fallback captcha solver. Detects Turnstile/hCaptcha/reCAPTCHA on the current page (or takes an explicit sitekey), submits to the configured provider (CapSolver or 2Captcha per SAB_CAPTCHA_PROVIDER + SAB_CAPTCHA_API_KEY), polls for a token, and injects it into the widget's response field.

Input parameters:

- `pageUrl` (string): Page URL the captcha is bound to. Defaults to the current page.
- `sitekey` (string): Provide explicitly when auto-detection fails.
- `type` (string): Override auto-detection. Otherwise the active page is scanned for a known widget.

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/ykshah1309-stealth-agent-browser-mcp/stealth-agent-browser-mcp#diagnostics

## Score history

- 2026-08-03: 58
- 2026-08-02: 58
- 2026-08-01: 20
- 2026-07-31: 20
- 2026-07-30: 26
- 2026-07-28: 44
- 2026-07-27: 44

## Links

- npm package: https://www.npmjs.com/package/stealth-agent-browser-mcp
- Socket report: https://socket.dev/npm/package/stealth-agent-browser-mcp
- Repository: https://github.com/ykshah1309/stealth-agent-browser-mcp
- Website: https://github.com/yksha/stealth-agent-browser-mcp
- Changelog RSS feed: https://verifymcp.io/servers/ykshah1309-stealth-agent-browser-mcp/stealth-agent-browser-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ykshah1309-stealth-agent-browser-mcp/stealth-agent-browser-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ykshah1309-stealth-agent-browser-mcp/stealth-agent-browser-mcp