Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Go Utcp

go-utcp is the Go implementation of the Universal Tool Calling Protocol (UTCP).

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings 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 a0edb1984084, unchanged since the check below.

PERMISSION_SHELL_UNDECLARED

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

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

    src/transports/cli/cli_transport.go, line 68 cmd := exec.CommandContext(ctx, cmdPath, args...)

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

    src/transports/cli/cli_transport.go, line 68

    cmd := exec.CommandContext(ctx, cmdPath, args...)

    src/transports/mcp/mcp_transport.go, line 148

    cmd := exec.CommandContext(ctx, mp.Command[0], mp.Command[1:]...)

  • Install and update

    Pass

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

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    utcp_client_config.go, line 30

    // UtcpDotEnv implements UtcpVariablesConfig by loading a .env file.

    utcp_client_config.go, line 39

    // Load reads the .env file and returns a map of key→value.

    utcp_client_config.go, line 64

    // A list of providers to load from (e.g. .env, AWS SSM, Vault, etc.)

    Show more

    utcp_client_config_test.go, line 19

    fpath := filepath.Join(tmpDir, ".env")

    README.md, line 143

    - `.env` loading.

    README.md, line 425

    utcp.NewDotEnv(".env"),

    README.md, line 446

    For local development, `.env` files can be convenient. For production, prefer the secret-management mechanism provided by your deployment platform.

    README.md, line 453

    2. Values loaded from configured variable sources such as `.env`.

  • 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

    examples/filesystem_tools/main, line 1

    ����

    examples/shell_tools/main, 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 a0edb1984084. requests shell access. No manifest field names shell or command execution. 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: a0edb1984084857cb31f714009c4513451e9b07f

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