Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Neo4J Knowledge Graph

Mcp Neo4J Knowledge Graph, an MCP server listed in the PlugVet directory.

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.

INSTALL_LIFECYCLE_HOOK

Why this grade

  • INSTALL_LIFECYCLE_HOOK Medium

    A package install hook (preinstall, install, postinstall or prepare) runs a script.

    package.json, line 39 prepare

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/__vitest__/index.test.ts, line 68

    fs.rmSync(testDir, { recursive: true, force: true });

    src/embeddings/__vitest__/EmbeddingCaching.test.ts, line 53

    fs.rmSync(testDir, { recursive: true, force: true });

    src/embeddings/__vitest__/EmbeddingGeneration.test.ts, line 27

    fs.unlinkSync(TEST_DB_PATH);

    Show more

    src/embeddings/__vitest__/EmbeddingGeneration.test.ts, line 111

    fs.unlinkSync(TEST_DB_PATH);

    src/embeddings/__vitest__/EmbeddingLogging.test.ts, line 61

    fs.rmSync(testDir, { recursive: true, force: true });

    src/embeddings/__vitest__/EmbeddingRateLimiter.test.ts, line 53

    fs.rmSync(testDir, { recursive: true, force: true });

  • Install and update

    Concern

    runs a script at install time.

    INSTALL_LIFECYCLE_HOOK

    package.json, line 39

    prepare

  • Network

    Note

    can reach localhost.

    NETWORK_LOCALHOST

    src/metrics/__vitest__/PrometheusMetrics.comprehensive.test.ts, line 76

    const req = http.get(`http://localhost:${testPort}/metrics`, res => {

    src/metrics/__vitest__/PrometheusMetrics.comprehensive.test.ts, line 109

    const req = http.get(`http://localhost:${testPort}/invalid`, res => {

    src/metrics/__vitest__/PrometheusMetrics.comprehensive.test.ts, line 177

    const req = http.get(`http://localhost:${testPort}/metrics`, resolve);

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/index.ts, line 69

    tokensPerInterval: process.env['EMBEDDING_RATE_LIMIT_TOKENS']

    src/index.ts, line 70

    ? Number.parseInt(process.env['EMBEDDING_RATE_LIMIT_TOKENS'], 10)

    src/cli/generate-embeddings.ts, line 98

    if (!process.env['OPENAI_API_KEY']) {

    Show more

    src/cli/generate-embeddings.ts, line 111

    password: process.env['NEO4J_PASSWORD'] || '',

    src/cli/repair-relationships.ts, line 561

    password: process.env['NEO4J_PASSWORD'] || '',

    src/cli/report-oversized.ts, line 134

    password: process.env['NEO4J_PASSWORD'] || '',

    src/config/storage.ts, line 55

    neo4jPassword: process.env['NEO4J_PASSWORD'] || 'memento_password',

    src/config/__vitest__/entitySize.test.ts, line 45

    process.env.MAX_MCP_OUTPUT_TOKENS = '40000';

    src/embeddings/__vitest__/EmbeddingServiceIntegration.test.ts, line 10

    // Load environment variables from .env file

    src/embeddings/__vitest__/EmbeddingServiceIntegration.test.ts, line 11

    const envPath = path.resolve(process.cwd(), '.env');

    src/embeddings/__vitest__/EmbeddingServiceIntegration.test.ts, line 14

    console.log(`Loaded .env file: ${result.error ? 'Failed' : 'Success'}`);

    src/embeddings/__vitest__/OpenAIEmbeddingService.test.ts, line 9

    // Load environment variables from .env file

    src/embeddings/__vitest__/OpenAIEmbeddingService.test.ts, line 10

    const envPath = path.resolve(process.cwd(), '.env');

    src/embeddings/__vitest__/OpenAIEmbeddingService.test.ts, line 13

    console.log('Loaded .env file for API key');

    .github/workflows/ci-cd.yml, line 82

    - name: Create mock .env file for tests

    .github/workflows/ci-cd.yml, line 90

    } >> .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 9a088359a253. can delete files. runs a script at install time. can reach localhost. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 9a088359a253b4eed7da9897bf3d387dfd2b8081

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