Grades are a hygiene check, not a security guarantee.

MCP, MCP server

ai.sealgate/gateway

MCP gateway with runtime security policy, tool-call-level control, and audit of agent actions.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

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

Rescanned at commit 679f8683be07, unchanged since the check below.

INSTALL_UNPINNED NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER

Why this grade

  • INSTALL_UNPINNED Low

    Dependencies use a range or git URL with no lockfile.

    package.json, line 54 @modelcontextprotocol/sdk

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/gateway.ts, line 48 const response = await fetch(buildUrl(config, request), {

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    CLAUDE.md, line 67 # .env (git-ignored; see .env.example)

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    package.json, line 54 @modelcontextprotocol/sdk

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 call was found in the code. This check does not read permissions an entry declares. A permission line to run shell commands was found in this repository, and it may apply to this entry.

  • Install and update

    Concern

    dependencies are not pinned. The docs document an installer that pipes a download into a shell.

    INSTALL_UNPINNED INSTALL_DOCUMENTED_INSTALLER

    package.json, line 54

    @modelcontextprotocol/sdk

    .devcontainer/devcontainer.json, line 26

    "postCreateCommand": "curl -fsSL https://bun.sh/install | bash && export PATH=\"$HOME/.bun/bin:$PATH\" && make setup",

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    src/gateway.ts, line 48

    const response = await fetch(buildUrl(config, request), {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    CLAUDE.md, line 67

    # .env (git-ignored; see .env.example)

    .dockerignore, line 13

    !README.md

    .dockerignore, line 14

    .env

    Show more

    .dockerignore, line 16

    !.env.example

    .gitignore, line 19

    # Environment

    .gitignore, line 20

    .env

    .gitignore, line 22

    !.env.example

  • 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 679f8683be07. dependencies are not pinned. The docs document an installer that pipes a download into a shell. 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: 679f8683be07d720309716900acbf35aa1a96067

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