Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Ai Browser

Ai Browser, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade C

One Medium finding. Read the report 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 46 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.

    INSTALL_LIFECYCLE_HOOK

    package.json, line 46

    postinstall

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/browser.ts, line 556

    // redirect or a fetch() to an internal address is just as much of a leak.

    src/live-smoke.ts, line 27

    const frame = await fetch(at("/frame"));

    src/live-smoke.ts, line 31

    const events = await fetch(at("/events"));

    Show more

    src/live-smoke.ts, line 37

    const noToken = await fetch(at("/frame").split("?")[0]!);

    src/live-smoke.ts, line 41

    const req = http.get(

    src/live.ts, line 64

    const r = await fetch('/events?token=' + token);

    src/regress.ts, line 161

    await p.goto(html(`<button>Noop</button><script>setInterval(()=>fetch('data:,x'),200)</script>`));

    src/regress.ts, line 285

    fetch("http://127.0.0.1:9/").then(

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED

    src/bench-h2h.ts, line 29

    const merged = { ...process.env, ...env } as Record<string, string>;

  • 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 9a3fa8c0c6e6. runs a script at install time. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 9a3fa8c0c6e64e1500eabd01152dc31e800d5860

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