Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Cdp Toolkit

A lightweight, drop-in alternative to chrome-devtools-mcp that won't wedge your agent. It drives the Chrome tabs you point it at over the raw DevTools Protocol: any number of tabs, one explicitly named target per call

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_ENV_READ

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    package.json, line 100 @modelcontextprotocol/server

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    scripts/wedge-bench.ts, line 160 ready = (await fetch(`${BASE}/json/version`)).ok;

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    src/tools/extract.ts, line 176 const raw = process.env.CDP_EXTRACT_API_KEY;

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Concern

    dependencies are not pinned.

    INSTALL_UNPINNED

    package.json, line 100

    @modelcontextprotocol/server

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    scripts/wedge-bench.ts, line 160

    ready = (await fetch(`${BASE}/json/version`)).ok;

    scripts/wedge-bench.ts, line 166

    const ver = (await (await fetch(`${BASE}/json/version`, { signal: AbortSignal.timeout(5_000) })).json()) as {

    skills/using-cdp-toolkit/SKILL.md, line 39

    curl -s http://127.0.0.1:9222/json/version # smoke-check the port

    Show more

    src/client.ts, line 3

    * WebSocket (Node >= 22; verified on Node 25.9). Every tool module is built on

    src/client.ts, line 69

    const ws = new WebSocket(this.wsUrl);

    src/client.ts, line 197

    const res = await fetch(`${BASE}${path}`);

    src/mcp.ts, line 60

    fetch(req: Request): Promise<Response> | Response;

    src/mcp.ts, line 540

    httpHandler!.fetch(req),

    src/toolDocs.ts, line 354

    "url": "Match by URL substring (first match). Required for body fetch (includeBody), since url is stable across reload.",

  • Secrets

    Note

    reads an environment variable.

    SECRETS_ENV_READ

    src/tools/extract.ts, line 176

    const raw = process.env.CDP_EXTRACT_API_KEY;

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 77a4dccde951. dependencies are not pinned. can reach a host that is not written as a fixed address. reads an environment variable.

Date and source

Date checked:

View source

github.com

Commit graded: 77a4dccde95101708b9e366f65b5648aa74b3ca3

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen