Skills/npm/leetcode-mcp-server

leetcode-mcp-server@1.5.0

VERIFIED

Publisher claims: "MCP Server for LeetCode API (supports leetcode.com and leetcode.cn)" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher jinzcdev · joined 10 days agoInstalls 684Last detonated 2 h ago
$claude mcp add leetcode-mcp-server -- npx -y @jinzcdev/leetcode-mcp-server
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-05 and scored it 84/100 (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 · 2 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
1.4sprocessdependency install exit 1
1.5sprocessexec /usr/bin/date
1.5sprocessexec /usr/bin/timeout
1.5sclaimedno tools/list reply (exit 0)
1.5sprocessscript backend runs setup only

Static findings

MEDIUM
File permission modification commandpackage.json:17 · File permission modification command — agent changes file ownership/permissionsFix: Request the narrowest permission that works; replace wildcards with the exact paths or hosts.
AST05

No other findings across 6,731 lines in 70 files.

Cost to the agent

Instructions loaded
≈59 tok
1 file · 70 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

Not checked against OSV yet; the weekly check has not reached this version.

leetcode-mcp-server@1.5.0 safety verdict: Verified 84/100 — KillerSkills