mcpstack-jupyter@0.0.4
VERIFIED· install onlyPublisher claims: "[MCP Tool] Jupyter, let the LLM perform Jupyter Notebook reproducible analysis — Derived from the official Jupyter MCP Server by @datalayer.tech" 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
DOCUMENT_TOKENRUNTIME_TOKENor--document-token/--runtime-tokenConfiguration, not credentials: DOCUMENT_ID, DOCUMENT_URL, PROVIDER, RUNTIME_ID, RUNTIME_URL- Where it talks to
- no vendor host named in the code
- 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. It asks for DOCUMENT_TOKEN, RUNTIME_TOKEN and talks to its vendor. Give the credential to the guard, not the server: the value never enters the server's environment and only travels to the host you bind. What the tools do with a real credential was not observed.
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 94/100 (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
monkeypatch.setenv("DOCUMENT_URL", "http://10.0.0.1:9999")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.assert server.DOCUMENT_URL == "http://10.0.0.1:9999"Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.assert server.RUNTIME_URL == "http://10.0.0.2:8888"Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.monkeypatch.setenv("RUNTIME_URL", "http://10.0.0.2:8888")Fix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.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
No advisories in OSV for mcpstack-jupyter@0.0.4 as of 3d ago. This is the package itself, not its dependencies.