Skills/npm/yahoo-finance2

yahoo-finance2@4.0.5

VERIFIED

Publisher claims: "JS API for Yahoo Finance" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher gadicc · joined 7 days agoInstalls 784KLast detonated 7d ago
$claude mcp add yahoo-finance2 -- npx -y yahoo-finance2
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Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario) on 2026-10-27 and scored it 87/100 (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 · 0 s · 1 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.1sprocessscript backend runs setup only

Static findings

MEDIUM
File type combined with upload actionscript/src/modules/options.d.ts:24 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
File type combined with upload actionscript/src/modules/options.d.ts:69 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
File type combined with upload actionscript/src/modules/options.js:30 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
File type combined with upload actionscript/src/modules/options.js:75 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07
MEDIUM
npx invocation of non-well-known packagescript/deno.js:24 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.
AST06
MEDIUM
URL shortener detectedscript/src/lib/notices.js:6 · URL shortener detected — destination cannot be verifiedFix: Replace encoded or assembled strings with plain literals and remove undeclared network calls.
AST07