mcp@1.0.0-rc.80

VERIFIED

Publisher claims: "Presmium's agent environment: a document's tools and resources over MCP, and presmium-mcp over stdio" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher lincyaw · publishing for 25 daysInstalls 17,889Last detonated 20 h ago
$claude mcp add mcp -- npx -y @lincyaw/mcp
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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
no vendor host named in the codeAlso presmium.local — 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 presmium.local as well as its own vendor. The guard pins the network to the hosts the honeypot saw.

$vet-skills run --net declared -- npx -y @lincyaw/mcp

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 86/100 (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 · 30 s · 2 scenarios
t+CategoryObserved action
0.0sprocessno install scripts in bundle
10sprocessdependency install exit 0
30sfilesystemread ~/.cache/presmium/serve/ce5991014cb8c458/server.json · ~/.cache/presmium/serve/e00eab164ebbbd87/server.json · ~/.cache/presmium/serve/8e1cfdffc17a9f06/server.json · ~/.cache/presmium/serve/0d391ec72cb1b50d/server.json · ~/.cache/presmium/serve/78e7bf14a03a6772/server.json · ~/.cache/presmium/serve/068c392dd1f8364c/server.json outside project
30sclaimed3 tools: operations, read_operation, list_documents
30stools11f2a2a665b89981
30stools481ff6cfd3e65b47
30stools002de523a65501c0
30sprocessscript backend runs setup only
30sprocessno install scripts to re-run

Static findings

No findings across 5,169 lines in 39 files.

Cost to the agent

Instructions loaded
≈62 tok
1 file · 39 in bundle
Tool list per prompt
≈252 tok
3 tools · 84 per tool
Handshake
4123 ms
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 108

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 @lincyaw/mcp@1.0.0-rc.80 as of 6 h ago. This is the package itself, not its dependencies.