Use FAQ as a diagnostic hub: start from what failed, narrow the likely causes, and only then change setup, models, or workflows.
HTTP 401 Unauthorized from TypeSafe API or Gateway when calling System One / jev.
Unauthorized usually means missing/invalid TYPESAFE_API_KEY, wrong auth header, or calling the wrong host.
Believing you must install the TypeSafe skill before any Jev call works.
Optional accelerator for coding agents. Apps call the API/SDK without it.
Treating every Choice/Score as infallible automation fuel.
Yes. Use confidence paths, human escalation, and domain evals. Honest uncertainty is a feature.
Someone asks whether Jev is ‘just another chat LLM’ or JSON-mode wrapper.
No. Jev is a System One decision model: structured answers, not chat text generation.
Assuming openjev.com or SemIf scores equal hosted TypeSafe Jev accuracy.
OpenJev/SemIf is an interface pattern on open models; hosted Jev is TypeSafe’s model. SemIf ≠ TypeSafe weights.
Blocked or gated when opening a playground; unclear which site is official.
Console playground and jevplayground.com may change access rules—re-check live. Prefer official console for keys.
Repeating launch-blog multiples as independent Jev 101 benchmarks.
Those figures are TypeSafe workflow-eval marketing on their launch blog—we do not re-run them here.
Confusion about the ‘Noul’ primitive name or return shape.
Noul asks whether a statement is true and returns noul = P(yes) in 0–1. No separate confidence field.