Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Vanguard Memory Node

Local deterministic memory for AI agents via the Model Context Protocol (MCP).

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.

PERMISSION_DELETE_FILES NETWORK_NO_FIXED_HOST SECRETS_PATH_UNCONFIRMED SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • PERMISSION_DELETE_FILES Low

    Contains a call that can delete files.

    src/core.ts, line 559 if (fs.existsSync(objPath)) { fs.unlinkSync(objPath); deleted = true; }

  • NETWORK_NO_FIXED_HOST Low

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

    src/vault_bridge.ts, line 25 const res = await fetch(url, {

  • SECRETS_PATH_UNCONFIRMED Low

    The Secrets check reports a credential or environment file, but no quoted line shows a recognisable path.

    src/vault_bridge.ts, line 16 const apiKey = process.env.EXERGYNET_API_KEY;

  • SECRETS_ENV_READ Note

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

    src/vault_bridge.ts, line 16 const apiKey = process.env.EXERGYNET_API_KEY;

  • OBFUSCATION_FILE_OVER_READ_CAP Note

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

    tests/fixtures/vault-1000/documents.json, line 1 [

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

    src/core.ts, line 559

    if (fs.existsSync(objPath)) { fs.unlinkSync(objPath); deleted = true; }

    src/core.ts, line 563

    if (fs.existsSync(segPath)) fs.unlinkSync(segPath);

    src/index_store.ts, line 126

    if (fs.existsSync(filePath)) fs.unlinkSync(filePath);

    Show more

    src/index_store.ts, line 242

    if (fs.existsSync(p)) fs.unlinkSync(p);

  • 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

    src/vault_bridge.ts, line 25

    const res = await fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_UNCONFIRMED

    src/vault_bridge.ts, line 16

    const apiKey = process.env.EXERGYNET_API_KEY;

    .gitignore, line 1

    node_modules/

    .npmignore, line 2

    tsconfig.json

    Show more

    docs/vmn.html, line 274

    .env-table td:first-child { font-family: var(--mono); font-size: .85rem; color: var(--accent); }

    docs/vmn.html, line 275

    .env-table td:nth-child(2) { font-family: var(--mono); font-size: .82rem; color: var(--text-dim); }

  • 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

    tests/fixtures/vault-1000/documents.json, line 1

    [

    tests/fixtures/vault-10000/documents.json, line 1

    [

    tests/fixtures/vault-669/documents.json, 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 67721a8e879c. can delete files. can reach a host that is not written as a fixed address. 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: 67721a8e879c4c039f7b33fd3e7c7de0f2637fc0

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