Skills/npm/mcp-open-library

mcp-open-library@1.2.6

VERIFIED

Publisher claims: "MCP server for the Open Library" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher 8ensmith · publishing for 477 daysInstalls 1,522Last detonated 17 h ago
$claude mcp add mcp-open-library -- npx -y mcp-open-library
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Coverage

Server started and answered tools/list.
Tested
MCP initialize and tools/list · every tool description, for hidden instructions · every file read, file written and host contacted by what ran
Not tested
what the tools do when called with real credentials

Before you give it your token

It will ask for
no credential variables read in the code
Where it talks to
openlibrary.org (its own)Also archive.org — 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
what the tools do when called with real credentials

Connect it under the guard; read the third-party hosts first. The code names archive.org as well as its own vendor. The guard pins the network to the hosts the honeypot saw.

$vet-skills run --net declared -- npx -y mcp-open-library

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) on 2026-11-13 and scored it 93/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 37 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
17sprocessdependency install exit 0
37sclaimed7 tools: search_books, get_book_by_title, get_book_by_id, get_authors_by_name, get_author_info, get_author_photo, get_book_cover
37stoolsa726fb5a05c94227
37stools35c4778663158ddc
37stoolsf7384579f68ce8da
37stoolsc7972b1f351771cd
37stoolsf6a987c2fd04ec10
37stools051cf97071ac9825
37stools117cd5f051743707
37sprocessscript backend runs setup only
37sprocessno install scripts to re-run

Static findings

MEDIUM
npx invocation of non-well-known packagebuild/utils/main-module.test.js:21 · npx invocation of non-well-known package — may execute untrusted code// The npx case, and the reason this helper exists. npm links a package's binFix: Pin versions and sources; vendor anything fetched at install time.
AST06

No other findings across 3,288 lines in 40 files.

Cost to the agent

Instructions loaded
≈46 tok
1 file · 40 in bundle
Tool list per prompt
≈1,462 tok
7 tools · 209 per tool
Handshake
825 ms
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 258

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 mcp-open-library@1.2.6 as of 16 h ago. This is the package itself, not its dependencies.