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Is tc39-mcp server safe?

Yes, with the usual care.

A85/100grade A

Passed every safety check we run. Maintained, authenticated, reachable, clean scan.

What to know before installing
  • highWrite-action tools reachable without authentication

Public scan report

scanner v0.1.9 · 2026-09-20 · same rubric, same numbers if you re-run it

1 high
  • Code scan96 source files scanned25/25
  • Live reliabilityremote reachable in 481ms20/20
  • Tool poisoning17 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identityregistry namespace matches repository owner7/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 85/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

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tc39-mcp reviews, tools and install