Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.Alexendros/proton-mail-mcp

Objetivos: Orientar el pulso del repo, el quickstart y el enrutado a los documentos canónicos.

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 04f09666467c.

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 89 prepare

  • SECRETS_PATH_CREDENTIAL Medium

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

    scripts/bootstrap-npm-local.sh, line 20 printf '//registry.npmjs.org/:_authToken=%s\n' "$NPM_TOKEN" >"$ROOT/.npmrc.bootstrap"

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

    Pass

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

  • Install and update

    Concern

    runs a script at install time.

    INSTALL_LIFECYCLE_HOOK

    package.json, line 89

    prepare

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    scripts/install-drive.sh, line 45

    if wget -q "$URL" -O /tmp/proton-drive; then

    scripts/run-actionlint.sh, line 19

    curl -fsSL -o "$tmp/$archive" \

    src/imap.ts, line 403

    for await (const msg of c.fetch(

    Show more

    src/imap.ts, line 452

    for await (const msg of c.fetch(sorted, this.summaryFetchQuery(), {

    src/alerts/ntfy.ts, line 23

    const res = await fetch(`${this.url}/${this.topic}`, {

    src/alerts/webhook.ts, line 7

    const res = await fetch(this.url, {

    docs/archive/superpowers/plans/2026-07-17-sprint-bugfixes-pendientes.md, line 737

    const res = await fetch(`${this.url}/${this.topic}`, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_CREDENTIAL SECRETS_PATH_DOTENV

    scripts/bootstrap-npm-local.sh, line 20

    printf '//registry.npmjs.org/:_authToken=%s\n' "$NPM_TOKEN" >"$ROOT/.npmrc.bootstrap"

    scripts/bootstrap-npm-local.sh, line 21

    cleanup() { rm -f "$ROOT/.npmrc.bootstrap"; }

    scripts/bootstrap-npm-local.sh, line 35

    npm publish --access public --userconfig "$ROOT/.npmrc.bootstrap"

    Show more

    scripts/diagnose-bridge.sh, line 3

    # Carga .env, ejecuta el goal check-imap con LOG_LEVEL=debug y muestra

    scripts/diagnose-bridge.sh, line 9

    if [[ -f .env ]]; then

    scripts/diagnose-bridge.sh, line 11

    source .env

    scripts/diagnose-bridge.sh, line 16

    echo "[diagnose] PROTON_BRIDGE_USER y PROTON_BRIDGE_PASS deben estar definidos (en .env o en el entorno)." >&2

    scripts/install.sh, line 4

    # genera .env y verifica conectividad.

  • 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

    pnpm-lock.yaml, line 1

    lockfileVersion: '9.0'

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit 04f09666467c. 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: 04f09666467cf0412e0179f3a15ae215b87c4ce8

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