Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Calypso Multimodal RAG MCP

Hosted multimodal RAG for Claude Desktop, Cursor, and agent workflows — in one npx command.

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 38 prepare

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 38

    prepare

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/buckets.ts, line 300

    const response = await fetch(buildApiUrl(config, "/knowledge/buckets"), {

    src/buckets.ts, line 322

    const response = await fetch(

    src/files.ts, line 297

    const response = await fetch(buildApiUrl(config, relativePath), {

    Show more

    src/files.ts, line 639

    const response = await fetch(uploadUrl, {

    src/models.ts, line 218

    const response = await fetch(buildApiUrl(config, "/rag-agent/models"), {

    src/search.ts, line 111

    const response = await fetch(buildApiUrl(config, "/search"), {

    .github/workflows/publish-mcp-registry.yml, line 122

    const response = await fetch(searchUrl);

    .github/workflows/publish-mcp-registry.yml, line 168

    const response = await fetch(searchUrl);

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    install.sh, line 27

    # Create .env file if it doesn't exist

    install.sh, line 28

    if [ ! -f .env ]; then

    install.sh, line 29

    echo "Creating .env file..."

    Show more

    install.sh, line 30

    cp .env.example .env

    install.sh, line 31

    echo "Please edit the .env file and add your Calypso API key."

    run-server.sh, line 15

    # Try to load from .env file

    run-server.sh, line 16

    if [ -f ".env" ]; then

    run-server.sh, line 17

    export $(grep -v '^#' .env | xargs)

    scripts/publish-smithery.mjs, line 110

    const apiKey = process.env.SMITHERY_API_KEY;

  • 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 4077bfee839c. 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: 4077bfee839c9ef5a27ebf5acfd6005c7a09405c

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