Grades are a hygiene check, not a security guarantee.

MCP, MCP server

UptimeRobot

Monitor websites, APIs, and servers — create monitors, triage incidents, and query uptime stats from Claude Code.

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 7dedf3ddbc18, unchanged since the check below.

AGENT_HIDDEN_STEP

Why this grade

  • AGENT_HIDDEN_STEP High

    Text tells the agent to hide a step or not to tell the user.

    skills/bulk-pause/SKILL.md, line 9 etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

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 call was found in the code. This check does not read permissions an entry declares. A permission line to write or edit files was found in this repository, and it may apply to this entry.

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach heartbeat.uptimerobot.com. The description does not name that host.

    NETWORK_UNNAMED_HOST

    skills/create-heartbeat-monitor/SKILL.md, line 64

    curl -fsS --retry 3 "https://heartbeat.uptimerobot.com/m800123456-abcd1234" > /dev/null

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 14

    .env

  • Agent instructions

    Serious

    instructions tell the agent to hide a step.

    AGENT_HIDDEN_STEP

    skills/bulk-pause/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-api-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-dns-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    Show more

    skills/create-heartbeat-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-http-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-keyword-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-ping-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-port-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/create-udp-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/incident-response/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/incidents/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/list-integrations/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/maintenance-windows/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/manage-monitor-groups/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/manage-monitor-groups/SKILL.md, line 24

    - Don't tell the user "group X contains monitors A, B, C" unless you were the one who just set that exact membership and haven't lost track of it.

    skills/manage-monitors/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/monitor-health-summary/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/sla-report/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/stats/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/status-pages/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

    skills/update-monitor/SKILL.md, line 9

    etup` skill before doing anything else. Do not tell the user the MCP is misconfigured — `setup`'s St

  • 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.

Note

Hygiene check of commit 7dedf3ddbc18. can reach heartbeat.uptimerobot.com. The description does not name that host. reads a credential or environment file. instructions tell the agent to hide a step.

Date and source

Date checked:

View source

github.com

Commit graded: 7dedf3ddbc18991ba4ca1286b329cdb0d7b78aad

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