Grades are a hygiene check, not a security guarantee.

MCP, MCP server

memex

Zettelkasten-based agent memory system with bidirectional links

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 453c0e33f527, unchanged since the check below.

INSTALL_LIFECYCLE_HOOK SECRETS_PATH_CREDENTIAL

Why this grade

  • INSTALL_LIFECYCLE_HOOK Medium

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

    package.json, line 24 prepare

  • SECRETS_PATH_CREDENTIAL Medium

    Mentions a credential store path (~/.ssh, id_rsa, .npmrc, .aws/credentials, credentials.json, .netrc).

    src/lib/sync.ts, line 107 `\n 2. If no key exists: ssh-keygen -t ed25519 && ssh-add ~/.ssh/id_ed25519` +

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    pi-extension/README.md, line 90

    The extension uses `node:child_process.spawn` to call the globally installed `memex` CLI. This avoids dependency management - the extension is a single TypeScript file with zero np

  • Install and update

    Concern

    runs a script at install time.

    INSTALL_LIFECYCLE_HOOK

    package.json, line 24

    prepare

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    docs/superpowers/plans/2026-03-21-share-v2.md, line 544

    const res = await fetch('/api/cards/' + encodeURIComponent(slug));

    src/commands/serve-ui.html, line 997

    fetch('/api/cards'),

    src/commands/serve-ui.html, line 998

    fetch('/api/links')

    Show more

    src/commands/serve-ui.html, line 1084

    const res = await fetch('/api/cards/index');

    src/commands/serve-ui.html, line 1264

    const res = await fetch('/api/cards/' + encodeURIComponent(slug));

    src/commands/serve-ui.html, line 1355

    const res = await fetch('/api/cards/' + encodeURIComponent(slug));

    src/commands/serve-ui.html, line 1451

    const [cardsRes, linksRes] = await Promise.all([fetch('/api/cards'), fetch('/api/links')]);

    src/commands/serve-ui.html, line 1781

    fetch('/api/cards/' + encodeURIComponent(node.id))

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    src/lib/embeddings.ts, line 70

    const key = apiKey ?? process.env.OPENAI_API_KEY;

    src/lib/embeddings.ts, line 179

    return process.env.AZURE_OPENAI_API_KEY

    src/lib/sync.ts, line 107

    `\n 2. If no key exists: ssh-keygen -t ed25519 && ssh-add ~/.ssh/id_ed25519` +

    Show more

    src/lib/embeddings.ts, line 180

    ?? process.env.MEMEX_AZURE_OPENAI_API_KEY

    src/lib/embeddings.ts, line 182

    process.env.AZURE_OPENAI_API_KEY_FILE

    src/lib/embeddings.ts, line 183

    ?? process.env.MEMEX_AZURE_OPENAI_API_KEY_FILE

    src/lib/embeddings.ts, line 579

    const apiKey = options.openaiApiKey ?? process.env.OPENAI_API_KEY;

    src/lib/sensitive-input.ts, line 23

    const SECRET_LOCATOR_RE = /(^|[\s"'`(])(?:~\/\.(?:claude|aws|config|ssh|netrc|npmrc|docker|kube)(?:\/[^\s"'`)]+)?|\.env(?:\.[A-Za-z0-9_-]+)?)(?=$|[\s"'`)])/i;

  • 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

    vscode-extension/memex-mcp-0.1.10.vsix, line 1

    PK��v\

    vscode-extension/memex-mcp-0.1.16.vsix, line 1

    PK��v\k

  • 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 453c0e33f527. requests shell access. The manifest names this permission. runs a script at install time. 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: 453c0e33f527a02178dc51b5ea426145e9cd22f8

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