Is Spawner MCP server safe?

Yes, with the usual care.

B75/100grade B

Safe to use. Minor gaps such as a missing repository or slower maintenance.

No critical or high findings in the latest scan.

How Spawner compares

Against every graded Developer tools MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score: 75/100; higher than 40% of 1,119 Developer tools servers
Tools that change things: 22%; typical: 5%. Fewer write tools means less an agent can break

What its tools let an agent do: 7 read · 2 change

scanner v0.1.10 · 2026-10-13 · same rubric, same numbers if you re-run it

1 medium

Code scan2 source files scanned20/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitystatic API keys via environment variables6/15
Maintenancelast push 2 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

mediumeval / new Function usedexec.eval

spawner.cjs: …&&(l=this.opts.code.process(l,e));let p=new Function(`${du.default.self}`,`${du.default.scope…

Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

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