Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.aethynio/aethyn-browser-mcp

An MCP server that lets an AI agent drive a real browser through residential proxies, choosing the exit country / city, tier, and a sticky per-task session — at call time. The browser (Playwright Chromium) runs locally on your machine

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

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

INSTALL_LIFECYCLE_HOOK

Why this grade

  • INSTALL_LIFECYCLE_HOOK Medium

    A package install hook (preinstall, install, postinstall or prepare) runs a script.

    package.json, line 20 postinstall

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

    runs a script at install time. dependencies are not pinned.

    INSTALL_LIFECYCLE_HOOK INSTALL_UNPINNED

    package.json, line 20

    postinstall

    package.json, line 47

    @modelcontextprotocol/sdk

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 1

    # Secrets - never commit real proxy credentials

    .gitignore, line 2

    .env

    docs/publishing.md, line 59

    - Don't commit real proxy credentials or a `.env`; both are git-ignored.

  • 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 8f698516e80a. runs a script at install time. dependencies are not pinned. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 8f698516e80a83cbeef228f61f3b9afb88447336

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