pdf-to-markdown

This skill is functionally coherent and aligns with its stated purpose (convert PDFs to Markdown). The primary security concern is a supply-chain risk: the README instructs users to run the conversion via npx which fetches and executes @opendocsg/pdf2md at runtime without an explicit pinned version. That gives transient runtime trust to a remote npm package (common but higher-risk than a vendored or pinned dependency). There are no signs of embedded backdoors, credential harvesting, or exfiltration endpoints in the provided content. Recommended mitigations: pin a specific, reviewed @opendocsg/pdf2md version or vendor the conversion code into the repo; document the npx usage as an explicit trust decision; avoid running unreviewed npx commands in sensitive environments. Overall, not malicious but carries moderate supply-chain risk due to runtime package execution.