Is Hackmd MCP server safe?

hackmd-mcp is an AI npm_package analyzed by SkillTotal's deterministic static scanner. The scan found no malicious indicators, though 2 risky constructs are reported for review. It can: install time execution and mcp tools detected — capabilities are what the code can do, not a verdict on intent. Risk score 0/100 (low).

hackmd-mcp 1.5.7

npm_package · https://github.com/yuna0x0/hackmd-mcp

LOW

/ 100 malicious-risk

Snapshot · scanned Jun 20, 2026 · hackmd-mcp@1.5.7 · engine 0.18.0 / ruleset 19

No malicious indicators - review capabilities before installing

Notable — review in context (capabilities are not malware):

npm prepare hook
MCP tool surface detected

No malicious indicators found by static analysis.

Capabilities — what this component can do (not a risk score):

install time executionmcp tools detected

Findings (2)

MEDIUMnpm prepare hookST-INSTALL-NPM-PREPARE

package.json has a 'prepare' script (runs on git/local installs and before publishing).

package.json:23-23

"prepare": "pnpm run build",

Why it matters: Usually a build step, but confirm it doesn't fetch or run remote code.

Fix: Usually a legitimate build step; confirm it only builds and does not fetch or execute remote code.

LOWMCP tool surface detectedST-MCP-DETECTED

An MCP tool surface (manifest or tool definitions) was found.

manifest.json:25-25

"tools": [

server.json:1-1

Why it matters: Just context — review which tools it offers and their permissions.

Fix: Review the declared MCP tools and their permissions.

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How we determine this: deterministic static analysis (regex + AST), evidence-anchored, no code execution. Methodology →