Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Free Ai Agent Stack

Free Ai Agent Stack, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High. 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.

PERMISSION_SHELL_UNDECLARED INSTALL_REMOTE_SCRIPT

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    scripts/verify_links.py, line 183 subprocess.run(["gh", "--version"], capture_output=True, check=True)

  • INSTALL_REMOTE_SCRIPT Medium

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    data/agent-tools.yaml, line 120 install: "curl -fsSL https://opencode.ai/install | bash"

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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

    Concern

    requests shell access. No manifest field names shell or command execution.

    PERMISSION_SHELL_UNDECLARED

    scripts/verify_links.py, line 183

    subprocess.run(["gh", "--version"], capture_output=True, check=True)

    scripts/verify_links.py, line 195

    subprocess.run(

    scripts/verify_links.py, line 200

    subprocess.run(

    Show more

    scripts/verify_links.py, line 226

    diff = subprocess.run(

  • Install and update

    Serious

    install fetches a script from the network.

    INSTALL_REMOTE_SCRIPT

    data/agent-tools.yaml, line 120

    install: "curl -fsSL https://opencode.ai/install | bash"

    data/agent-tools.yaml, line 261

    install: "curl -fsSL https://github.com/block/goose/releases/download/stable/download_cli.sh | bash"

    website/public/data/agent-tools.json, line 184

    "install": "curl -fsSL https://opencode.ai/install | bash",

    Show more

    website/public/data/agent-tools.json, line 412

    "install": "curl -fsSL https://github.com/block/goose/releases/download/stable/download_cli.sh | bash",

    website/public/data/all.json, line 4425

    "install": "curl -fsSL https://opencode.ai/install | bash",

    website/public/data/all.json, line 4653

    "install": "curl -fsSL https://github.com/block/goose/releases/download/stable/download_cli.sh | bash",

    website/public/llms-full.txt, line 9077

    - Install: curl -fsSL https://opencode.ai/install | bash

    website/public/llms-full.txt, line 9456

    - Install: curl -fsSL https://github.com/block/goose/releases/download/stable/download_cli.sh | bash

    website/public/llms.txt, line 191

    - OpenCode - Open-source terminal coding agent with a client/server architecture and provider-agnostic model routing. Free limit: Free software - you bring a model key (free tiers

    website/public/llms.txt, line 200

    - Goose - Block's local-first agent that can extend itself by writing its own MCP extensions. Free limit: Free and open source - bring any provider key. No credit card required. In

  • Network

    Concern

    can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    scripts/generate_stats.py, line 71

    resp = requests.get(f"https://api.github.com/repos/{repo}", headers=headers, timeout=10)

    website/components/GlobalSearch.tsx, line 36

    const response = await fetch("/data/all.json");

  • Secrets

    Note

    reads an environment variable.

    SECRETS_ENV_READ

    scripts/generate_stats.py, line 64

    token = os.environ.get("GITHUB_TOKEN") or os.environ.get("GH_TOKEN")

    scripts/verify_links.py, line 184

    return bool(os.environ.get("GH_TOKEN") or os.environ.get("GITHUB_TOKEN"))

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    website/public/llms-full.txt, line 1

    # free-ai-agent-stack - complete catalogue

    website/public/data/all.json, line 1

    {

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 7edf2bb497b3. requests shell access. No manifest field names shell or command execution. install fetches a script from the network. can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address. reads an environment variable. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: 7edf2bb497b35b0024f9ec3c7e6bd9df0606099d

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