Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Plugin Dotnet

MCP Plugin for .NET is a comprehensive solution for integrating .NET applications with the Model Context Protocol (MCP).

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 28ce6bbdb95d.

PERMISSION_SHELL_UNDECLARED SECRETS_PATH_CREDENTIAL

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

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

    .github/scripts/chain_feed.py, line 1420 completed = subprocess.run(

  • SECRETS_PATH_CREDENTIAL Medium

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

    McpPlugin.Tests/AgentConfig/ProjectKeyStoreTests.cs, line 85 // credentials.json uses yields the plaintext, and the secret never appears in the raw bytes.

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

    Concern

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

    PERMISSION_SHELL_UNDECLARED

    .github/scripts/chain_feed.py, line 1420

    completed = subprocess.run(

    .github/scripts/chain_feed.py, line 1488

    completed = subprocess.run( # noqa: S602 - manifest recipes carry `&&` and `cd`

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    .github/scripts/chain_feed.py, line 3729

    A download whose length disagrees with the listing's `size` REFUSES the whole fetch (a

    scripts/chain_fixture.py, line 556

    with urllib.request.urlopen(request, timeout=self.timeout) as response:

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_CREDENTIAL

    McpPlugin.Tests/AgentConfig/ProjectKeyStoreTests.cs, line 85

    // credentials.json uses yields the plaintext, and the secret never appears in the raw bytes.

    McpPlugin/src/AgentConfig/MachineCredentialStore.cs, line 25

    /// the ai-game.dev account credential (<c>credentials.json</c>, schema v2 — see

    McpPlugin/src/AgentConfig/MachineCredentialStore.cs, line 32

    /// <item><b>POSIX</b> — <c>credentials.json</c> is written plaintext with <c>0600</c> permissions,

    Show more

    McpPlugin/src/AgentConfig/MachineCredentialStore.cs, line 34

    /// <item><b>Windows</b> — <c>credentials.json</c> content is DPAPI-encrypted with the current

    McpPlugin/src/AgentConfig/MachineCredentialStore.cs, line 64

    public const string CredentialsFileName = "credentials.json";

    McpPlugin/src/AgentConfig/MachineCredentials.cs, line 21

    /// <see cref="MachineCredentialStore"/> (<c>~/.ai-game-dev/credentials.json</c>).

    McpPlugin/src/AgentConfig/ProjectKeyProvider.cs, line 116

    /// A provider that reads the machine credential store (<c>~/.ai-game-dev/credentials.json</c>)

    McpPlugin/src/AgentConfig/ProjectKeyStore.cs, line 43

    /// <para>A SEPARATE file from <c>credentials.json</c> so an older writer of that file can never drop the

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    the file cap was reached before every file was read.

    OBFUSCATION_FILE_CAP_REACHED

    McpPlugin.Server.Tests/ClientUtilsToolCallDeliveryTests.cs, 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 28ce6bbdb95d. requests shell access. No manifest field names shell or command execution. can reach a host that is not written as a fixed address. reads a credential or environment file. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 28ce6bbdb95d08d1572f79ad4d600ce568022c56

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