Summary
zcaceres/markdownify-mcp v2026-03-26 was classified as CRITICAL RISK with a risk score of 54. Sigil detected 3 findings across 26 files, covering phases including provenance, install hooks. Review the findings below before installing this package.
Package description: A Model Context Protocol server for converting almost anything to Markdown
v2026-03-26
27 March 2026, 05:00 UTC
by Sigil Bot
Risk Score
54
Findings
3
Files Scanned
26
Provenance
Findings by Phase
Phase Ordering
Phases are ordered by criticality, with the most dangerous at the top. Click any phase header to expand or collapse its findings. Critical phases are expanded by default.
install-npm-postinstall
CRITICALnpm lifecycle script — runs automatically on install
repo/package.json:22
"dev": "tsc --watch",
"preinstall": "node preinstall.js",
"prepublishOnly": "bun run build",Why was this flagged?
npm lifecycle scripts like postinstall run automatically during package installation with no user interaction required. This is the #1 attack vector for malicious npm packages — attackers embed data theft or backdoor installation in these hooks. Rated CRITICAL because code executes before the developer can review it.
Badge
Markdown
[](https://sigilsec.ai/scans/2BF1A75B-82C6-4B55-BEEC-76E3C1CD95F9)HTML
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