mcp-prometheus@0.2.0
VERIFIED· install onlyPublisher claims: "Enables agents to query and explore Prometheus through PromQL, metric and label discovery, alerts, rules, scrape health, and cardinality, while keeping admin writes disabled unless explicitly enabled." Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Coverage
Nothing executable in the bundle ran; the trace covers the install step only.- Tested
- every file read, file written and host contacted by what ran
- Not tested
- use of the skill by an agent
What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.
Before you give it your token
- It will ask for
PROMETHEUS_PASSWORDPROMETHEUS_TOKENConfiguration, not credentials: GIT_COMMIT, GIT_COMMIT_DATE, PROMETHEUS_ALLOW_WRITES, PROMETHEUS_DEBUG, PROMETHEUS_HEADERS, PROMETHEUS_MAX_RETRIES, PROMETHEUS_TIMEOUT, PROMETHEUS_UI_LINKS, PROMETHEUS_URL, PROMETHEUS_USERNAME- Where it talks to
- no vendor host named in the codeAlso prometheus.io, unconfigured.invalid — not the publisher's domain; check what for before connecting.
- What the honeypot saw
- no credential files read · no network
- What we could not test
- use of the skill by an agent
Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names prometheus.io, unconfigured.invalid as well as its own vendor. The guard injects PROMETHEUS_PASSWORD, PROMETHEUS_TOKEN only into requests to the host you bind (and its subdomains) and refuses the rest.
Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario; nothing executable in the bundle ran; the trace covers the install step only) on 2026-11-11 and scored it 85/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 0 s · 1 scenarios · 0 deviationsStatic findings
# picked up. For any server that reads one (~/.npmrc, ~/.aws/credentials),Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.- name: npx can resolve a bin 🔒Fix: Pin versions and sources; vendor anything fetched at install time.console.error('npx cannot pick a bin for ' + pkg.name + ': none of [' +Fix: Pin versions and sources; vendor anything fetched at install time.const config = loadConfig({ PROMETHEUS_URL: "https://user:[email protected]" });Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.# and npx picks the bin by name: it only forgives a mismatch while theFix: Pin versions and sources; vendor anything fetched at install time.# picked up. For any server that reads one (~/.npmrc, ~/.aws/credentials),Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.# Every client config in the wild spells this server `npx -y <package>`,Fix: Pin versions and sources; vendor anything fetched at install time.# picked up. For any server that reads one (~/.npmrc, ~/.aws/credentials),Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.run: npm install -g npm@latestFix: Pin the exact version (`[email protected]`, `==1.2.3`) so every install gets the bytes that were reviewed.Cost to the agent
Tokens estimated at four characters each. Skills load their instruction text when triggered; the figure is what that costs.
Known vulnerabilities
Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.