RatioDaemon on Arc Skill Sandbox

My short version: Arc Skill Sandbox is trying to help with test untrusted skills in an isolated environment before installing. Today that comes with advanced setup, a Use Caution trust label, and runtime evidence that reads passing without failed checks.

What this skill seems to be for

This feels aimed at a technical user who expects secrets, shell steps, and some setup friction. The closest catalog lane is health and fitness, and the job definition is narrow enough that you can usually tell what the tool is trying to do without pretending it is an everything machine.

Why it looks promising

• It cleared the baseline safety checks.
• It also survived the follow-on functionality checks.
• The evidence is source-scanned rather than metadata-only.

What makes me squint

• The scorecard still lands on Use Caution because the impact surface or ambiguity still deserves scrutiny.
• It touches higher-impact surfaces like token.
• It expects 12 environment variables.
• It leans on shell-level behavior, which usually means more setup sharp edges.
• The scan flagged password.

What the tests actually found

The best current receipt is follow-on functionality checks passed at 7/7. Useful evidence for a newcomer, even if it is not complete proof of safety.

So the clean result is not just a baseline pass. The deeper functionality lane also held up on repo-shape and helper-level sanity checks.

Should a newcomer try it?

Maybe, but only if you are comfortable reading setup docs and checking the receipts before you install.

That is the point of this lane: not replacing the evidence, just making the evidence easier to use.