Skills/npm/mcp-server

mcp-server@1.36.0

VERIFIED· startup only

Publisher claims: "MCP server for LionChat API — 547 tools + 10 resources + 9 prompts. Audit-log aware, completion API, progress notifications." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher lionchat · publishing for 210 daysInstalls 1,790Last detonated 3d ago
$claude mcp add mcp-server -- npx -y @lionchat/mcp-server
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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
Needs
LIONCHAT_API_TOKEN, YOUR_TOKEN — give it to the server where it runs, through vet-skills run --secrets, so the value never enters the server's environment. Never paste a credential into a chat, a ticket or a report.

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
LIONCHAT_API_TOKENConfiguration, not credentials: LIONCHAT_ACCOUNT_ID, LIONCHAT_BASE_URL, LIONCHAT_CATEGORIES, LIONCHAT_INCLUDE_PUBLIC_API, LIONCHAT_MCP_MAX_RESPONSE, LIONCHAT_MCP_VERSION
Where it talks to
lionchat.com.br (its own)
What the honeypot saw
no credential files read · no network
What we could not test
the tool list (the server exited before answering) · what the tools do when called with real credentials

Connect it with a scoped credential, under the guard. It asks for LIONCHAT_API_TOKEN and talks to lionchat.com.br. 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.

$vet-skills run --secrets LIONCHAT_API_TOKEN=lionchat.com.br -- npx -y @lionchat/mcp-server

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 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 (it asks for LIONCHAT_API_TOKEN, YOUR_TOKEN); 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 · 47 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
6.3sprocessdependency install exit 0
26sprocessrelaunched with a decoy LIONCHAT_API_TOKEN, YOUR_TOKEN (tagged; nothing real)
46sclaimedstartup only: exited before answering, asking for LIONCHAT_API_TOKEN, YOUR_TOKEN (a decoy value was refused)
46sprocessscript backend runs setup only
46sprocessno install scripts to re-run

Static findings

MEDIUM
File type combined with upload actiondist/sanitize.js:15 · File type combined with upload action — agent may exfiltrate local data files// _account.json.jbuilder (topsend_api_key, liontrack_token), _user.json.jbuilder (access_token).Fix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
File permission modification commandpackage.json:11 · File permission modification command — agent changes file ownership/permissions"build": "tsc && npm run copy-docs && chmod +x dist/index.js",Fix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05
MEDIUM
npx invocation of non-well-known packagedist/resources.js:95 · npx invocation of non-well-known package — may execute untrusted code// Tenta multiplos layouts pra cobrir build local, npm/npx e source.Fix: Pin versions and sources; vendor anything fetched at install time.
AST06
HIGH
Destructive file system command detecteddist/client.js:106 · Destructive file system command detected// AIDEV-NOTE: Normalize LionChat API responses to a consistent formatFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)dist/prompts.js:74 · MCP server using network transport (SSE/HTTP) — data sent over network// McpServer.server expoe o Server pra esses casos. Tambem anuncia capability completionsFix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

Cost to the agent

Instructions loaded
≈69 tok
1 file · 49 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

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 @lionchat/mcp-server@1.36.0 as of 3d ago. This is the package itself, not its dependencies.

mcp-server@1.36.0 safety verdict: Verified (startup only) — KillerSkills