Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.RapierCraft/perplexity-comet-mcp

A production-grade MCP (Model Context Protocol) server that bridges Claude Code with Perplexity's Comet browser for autonomous web browsing, research, and multi-tab workflow management.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

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

Rescanned at commit c3ce9c471285, unchanged since the check below.

INSTALL_LIFECYCLE_HOOK SECRETS_PATH_CREDENTIAL

Why this grade

  • INSTALL_LIFECYCLE_HOOK Medium

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

    package.json, line 16 prepare

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    src/upload-validator.ts, line 17 * (e.g. `~/.ssh/id_rsa`, `~/.aws/credentials`).

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 16

    prepare

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/cdp-client.ts, line 268

    const response = await fetch(url, { method });

    src/http-bridge.ts, line 1007

    ║ curl -X POST http://localhost:${String(BRIDGE_PORT).padEnd(24)}║

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    src/http-bridge.ts, line 39

    const BRIDGE_TOKEN = process.env.COMET_BRIDGE_TOKEN;

    src/upload-validator.ts, line 17

    * (e.g. `~/.ssh/id_rsa`, `~/.aws/credentials`).

    src/upload-validator.ts, line 103

    resolvePath(home, ".netrc"),

    Show more

    src/upload-validator.ts, line 104

    resolvePath(home, ".npmrc"),

    src/upload-validator.ts, line 111

    // .env files at home root

    src/upload-validator.ts, line 112

    resolvePath(home, ".env"),

    src/upload-validator.ts, line 131

    // Block .env files anywhere in the filesystem (not just home root).

    src/upload-validator.ts, line 133

    if (basename === ".env" || basename.startsWith(".env.")) {

    .gitignore, line 21

    # Environment

  • 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 c3ce9c471285. 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: c3ce9c4712853e2be4a8051d0171b9664689a7dc

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