Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Agent Discover

Find, install and enable MCP servers in the middle of a session, on any MCP host. agent-discover is one local daemon that searches the official MCP Registry, npm and PyPI, installs a server after you approve the exact command and its provenance, and then exposes its tools to

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.

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 44 prepare

  • SECRETS_PATH_CREDENTIAL Medium

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

    src/domain/trust/hygiene.ts, line 47 // reading other credentials: ~/.ssh, id_rsa, .env, mcp.json, other tools' API keys

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

    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 44

    prepare

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    plugin/hooks/register.tsx, line 72

    const t = await $.http.fetch(`${base}/api/token`);

    plugin/hooks/register.tsx, line 77

    const res = await $.http.fetch(`${base}${path}`, {

    src/shim.ts, line 42

    const res = await fetch(`${baseUrl(config)}/api/health`, {

    Show more

    src/shim.ts, line 89

    await fetch(`${base}/api/token`, { signal: AbortSignal.timeout(2_000) })

    src/shim.ts, line 91

    const res = await fetch(`${base}/api/shutdown`, {

    src/domain/marketplace.ts, line 170

    const res = await fetch(url, { signal: AbortSignal.timeout(REQUEST_TIMEOUT_MS) });

    src/domain/marketplace.ts, line 356

    const res = await fetch(`${PYPI_SEARCH_HTML}?${new URLSearchParams({ q: `${query} mcp` })}`, {

    src/domain/provenance.ts, line 29

    const res = await fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    bench/drivers/opencode.ts, line 321

    const apiKey = process.env.OPENAI_API_KEY;

    plugin/hooks/register.tsx, line 60

    `http://127.0.0.1:${(await $.env.get('AGENT_DISCOVER_PORT')) ?? '3424'}`;

    src/domain/trust/hygiene.ts, line 47

    // reading other credentials: ~/.ssh, id_rsa, .env, mcp.json, other tools' API keys

    Show more

    src/domain/trust/hygiene.ts, line 50

    pass|send|copy|provide)\b[^.\n]{0,40}\b(\.env|api[ _-]?keys?|access[ _-]?tokens?|pass

    .gitignore, line 10

    *.db-shm

    .gitignore, line 11

    .env

    bench/retrieval/extract/queries.src.json, line 794

    "query": "find every .env file in my project",

    bench/retrieval/queries.json, line 1428

    "query": "find every .env file in my project",

  • 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

    package-lock.json, line 1

    {

    bench/retrieval/catalog.json, line 1

    {

    bench/retrieval/enrichment.json, line 1

    {

  • 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 c70b3f91a36a. runs a script at install time. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: c70b3f91a36ad2d9e85985dbb6c166bdf15c1c25

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