Grades are a hygiene check, not a security guarantee.

MCP, MCP server

neuromesh

Local-first MCP context engine for Cursor, VS Code, Claude, Codex, and every MCP client.

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 75ec8870ac79, unchanged since the check below.

NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED INSTALL_DOCUMENTED_INSTALLER OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    install.sh, line 71 LATEST_RELEASE=$(curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' || true)

  • NETWORK_UNNAMED_HOST Low

    Calls a fixed host that the description does not name.

    install.sh, line 71 LATEST_RELEASE=$(curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' || true)

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    crates/neuromesh-context/src/retrieval/impact.rs, line 57 || pl.contains(".env")

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    scripts/agent_utility_eval.py, line 52 proc = subprocess.Popen(

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    README.md, line 93 curl -fsSL https://raw.githubusercontent.com/pinoox/neuromesh/main/install.sh | bash

  • OBFUSCATION_FILE_OVER_READ_CAP Note

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

    crates/neuromesh-api/src/ui/index.html, line 1 <!DOCTYPE html>

  • OBFUSCATION_FILE_CAP_REACHED Note

    The 400 file cap was reached before every file was read.

    crates/neuromesh-api/src/ui/index.html, line 1 <!DOCTYPE html>

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

    scripts/agent_utility_eval.py, line 52

    proc = subprocess.Popen(

    scripts/h2h_nm_cbm.py, line 32

    self.proc = subprocess.Popen(

    scripts/h2h_nm_vs_cbm.py, line 35

    self.proc = subprocess.Popen(

    Show more

    scripts/h2h_nm_vs_cbm.py, line 166

    idx = subprocess.run(

    scripts/honest_agent_bench.py, line 112

    self.proc = subprocess.Popen(

    scripts/honest_agent_bench.py, line 232

    subprocess.run([bin_path, "index"], cwd=project, capture_output=True, text=True, timeout=180)

    scripts/honest_agent_bench.py, line 345

    u = subprocess.run([bin_path, "usage"], cwd=project, capture_output=True, text=True, timeout=30)

    scripts/inspect_negative_confidence.py, line 21

    proc = subprocess.Popen(

  • Install and update

    Note

    README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 93

    curl -fsSL https://raw.githubusercontent.com/pinoox/neuromesh/main/install.sh | bash

    install.sh, line 6

    # curl -fsSL https://raw.githubusercontent.com/pinoox/neuromesh/main/install.sh | bash

    docs/cli.md, line 11

    curl -fsSL https://raw.githubusercontent.com/pinoox/neuromesh/main/install.sh | bash

    Show more

    docs/index.html, line 710

    <button class="copy-btn" data-copy="curl -fsSL https://raw.githubusercontent.com/pinoox/neuromesh/main/install.sh | bash" data-i18n="ui.copy">Copy</button>

    docs/index.html, line 712

    <pre>curl -fsSL https://raw.githubusercontent.com/pinoox/neuromesh/main/install.sh | bash</pre>

  • Network

    Concern

    can reach api.github.com. The description does not name that host. can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST NETWORK_UNNAMED_HOST

    install.sh, line 71

    LATEST_RELEASE=$(curl -fsSL "https://api.github.com/repos/${REPO}/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/' || true)

    install.sh, line 84

    if ! curl -fSL --progress-bar "${DOWNLOAD_URL}" -o "${TEMP_DIR}/neuromesh.${EXT}"; then

    editors/vscode-neuromesh/lib/api.js, line 32

    const res = await fetch(url, {

    Show more

    scripts/fetch-minilm-model.sh, line 26

    curl -fSL --progress-bar "${BASE}/${f}" -o "${out}"

    crates/neuromesh-api/src/ui/index.html, line 3752

    const res = await fetch('/api/expand', {

    crates/neuromesh-api/src/ui/index.html, line 3825

    const resPromise = fetch('/api/simulate', {

    crates/neuromesh-api/src/ui/index.html, line 4026

    const res = await fetch('/api/status');

    crates/neuromesh-api/src/ui/index.html, line 4214

    const res = await fetch('/api/projects');

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    crates/neuromesh-context/src/retrieval/impact.rs, line 57

    || pl.contains(".env")

    crates/neuromesh-index/src/tracker.rs, line 70

    if filename == ".env" {

    crates/neuromesh-index/src/tracker.rs, line 75

    ".env.example" | ".env.sample" | ".env.dist" | ".env.template"

    Show more

    crates/neuromesh-index/src/tracker.rs, line 289

    SourceLanguage::from_path(Path::new(".env")),

    crates/neuromesh-index/src/tracker.rs, line 293

    SourceLanguage::from_path(Path::new(".env.example")),

    crates/neuromesh-index/src/tracker.rs, line 297

    SourceLanguage::from_path(Path::new("config/.env.sample")),

    crates/neuromesh-parser/src/overlay.rs, line 1188

    ".env.example" | ".env.sample" | ".env.dist" | ".env.template"

    crates/neuromesh-parser/src/overlay.rs, line 2583

    let ast = analyze(".env.example", src, SourceLanguage::YAML);

  • 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. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    crates/neuromesh-api/src/ui/index.html, line 1

    <!DOCTYPE html>

    tests/fixtures/mini-gin/go.mod, line 1

    module example.com/mini-gin

  • 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 75ec8870ac79. requests shell access. The manifest names this permission. README documents an installer that pipes a download into a shell. The docs document an installer that pipes a download into a shell. can reach api.github.com. The description does not name that host. 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. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 75ec8870ac795aedd07f59013b62f045f9f410d8

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