mcp-server@1.0.73
CAUTION· startup onlyPublisher claims: "Verified npm launcher for the open-source ContextStream Rust MCP server" Observed in sandbox: sends data to pub-68429b9f7857416c9484b75bf1887b96.r2.dev.
Coverage
Startup only; authenticated tool behavior not tested.- Tested
- server startup over stdio (initialize sent) · every file read, file written and host contacted by what ran
- Not tested
- the tool list (the server exited before answering) · what the tools do when called with real credentials
What this means for the label: Caution 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
- no credential variables read in the code
- Where it talks to
- no vendor host named in the codeAlso r2.dev — not the publisher's domain; check what for before connecting.
- What the honeypot saw
- no credential files read · contacted pub-68429b9f7857416c9484b75bf1887b96.r2.dev (undeclared)
- What we could not test
- the tool list (the server exited before answering) · what the tools do when called with real credentials
Find out what these hosts are first. In the honeypot it contacted pub-68429b9f7857416c9484b75bf1887b96.r2.dev, which nothing in the package names as its own. If that is the vendor's service, fine; if you cannot place it, do not connect it.
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 (2 scenarios; startup only; authenticated tool behavior not tested) on 2026-11-11 and scored it 69/100 (Caution). It is not known to be malicious, but it has behaviour or code a security policy should decide on before install. Notable findings: Access to sensitive file paths. Summary: sends data to pub-68429b9f7857416c9484b75bf1887b96.r2.dev.
Behavior trace
Honeypot run · 20 s · 2 scenariosStatic findings
...env,Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.No other findings across 843 lines in 9 files.
Cost to the agent
Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.
Known vulnerabilities
No advisories in OSV for @contextstream/mcp-server@1.0.73 as of 4d ago. This is the package itself, not its dependencies.
What would make this Verified
11 points to 80 · weights: behavior 45%, static 25%, prompt 15%, publisher 15%- Contacts a host you did not declare≈ +23 on the totalList every host you talk to in SKILL.md frontmatter (`network: [api.example.com]`), or stop contacting the ones you cannot justify.
- Unclaimed publisher≈ +8 on the totalClaim contextstream: a verified publisher gets +50 on publisher trust. It is free and usually instant with GitHub sign-in.
- Access to sensitive file paths≈ +4 on the totalStop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.