Grades are a hygiene check, not a security guarantee.

MCP, MCP server

N3MemoryCore Lite (Working Memory)

N3MC-MCP-Lite is an "external memory server" used by MCP-compatible editors such as Claude Code, Cursor, and Windsurf. It runs as an MCP Server so AI can save and search conversation and code context across sessions.

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 40bfd04996e6, unchanged since the check below.

INSTALL_REMOTE_SCRIPT

Why this grade

  • INSTALL_REMOTE_SCRIPT Medium

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    plugins/n3mc-workingmemory/hooks/install_permissions.py, line 90 " Install (macOS/Linux): curl -LsSf https://astral.sh/uv/install.sh | sh\n"

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Serious

    install fetches a script from the network. The docs document an installer that pipes a download into a shell. README documents an installer that pipes a download into a shell.

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    N3MemoryCore_MCP_Spec_EN.md, line 850

    l hint** to stderr (`pipx install uv`, `curl -LsSf https://astral.sh/uv/install.sh | sh`, plus the docs URL) so the user sees a

    N3MemoryCore_MCP_Spec_JP.md, line 842

    に日英両言語のインストール手順**（`pipx install uv` ／ `curl -LsSf https://astral.sh/uv/install.sh | sh` 等）を出力して `/plugins` Errors タブに actionab

    plugins/n3mc-workingmemory/hooks/install_permissions.py, line 90

    " Install (macOS/Linux): curl -LsSf https://astral.sh/uv/install.sh | sh\n"

    Show more

    README.md, line 420

    `curl -LsSf https://astral.sh/uv/install.sh | sh`, plus the docs URL)

    README_JP.md, line 407

    `curl -LsSf https://astral.sh/uv/install.sh \| sh` 等）を出力するので、

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_UNCONFIRMED

    .gitignore, line 137

    # Environments

  • 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.

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Note

Hygiene check of commit 40bfd04996e6. install fetches a script from the network. The docs document an installer that pipes a download into a shell. README documents an installer that pipes a download into a shell. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 40bfd04996e63c7afc3b7556cedf46aab52d7f0f

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