Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Local Stt Mcp

A high-performance Model Context Protocol (MCP) server providing local speech-to-text transcription using whisper.cpp, optimized for Apple Silicon.

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 6cca78109a4e, unchanged since the check below.

PERMISSION_DELETE_FILES SECRETS_PATH_DOTENV NETWORK_NAMED_HOST SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    mcp-server/src/utils/diarization-python.ts, line 291 await fs.unlink(scriptPath).catch(() => {}); // Ignore cleanup errors

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 26 .env

  • NETWORK_NAMED_HOST Note

    Calls a fixed host that the description names.

    mcp-server/src/tools/list-models.ts, line 105 base_en: 'curl -L -O https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-base.en.bin',

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    mcp-server/src/utils/diarization-python.ts, line 147 ...(process.env.HF_TOKEN && { HF_TOKEN: process.env.HF_TOKEN }),

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    input/sample_meeting_40_seconds.wav, line 1 RIFFA

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

    can delete files.

    PERMISSION_DELETE_FILES

    mcp-server/src/utils/diarization-python.ts, line 291

    await fs.unlink(scriptPath).catch(() => {}); // Ignore cleanup errors

    mcp-server/src/utils/diarization-python.ts, line 296

    await fs.unlink(scriptPath).catch(() => {});

  • Install and update

    Pass

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

  • Network

    Note

    can reach huggingface.co.

    NETWORK_NAMED_HOST

    mcp-server/src/tools/list-models.ts, line 105

    base_en: 'curl -L -O https://huggingface.co/ggerganov/whisper.cpp/resolve/main/ggml-base.en.bin',

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    mcp-server/src/utils/diarization-python.ts, line 147

    ...(process.env.HF_TOKEN && { HF_TOKEN: process.env.HF_TOKEN }),

    mcp-server/src/utils/diarization-python.ts, line 204

    hf_token = os.environ.get('HF_TOKEN')

    .gitignore, line 26

    .env

    Show more

    mcp-server/src/utils/diarization-python.ts, line 390

    hf_token = os.environ.get('HF_TOKEN')

    .gitignore, line 25

    # Environment variables and secrets

    .gitignore, line 28

    !.env.example

  • 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

    input/sample_meeting_40_seconds.wav, line 1

    RIFFA

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-06-03T17:18:33+01:00

Note

Hygiene check of commit 6cca78109a4e. can delete files. can reach huggingface.co. reads a credential or environment file. a file was over the read cap and was not fully read. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: 6cca78109a4e46061072b8163e3fbb4cd9c54578

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