evaluate( )
Pattern
Jev Confidence Router
Route a message with a Jev choice distribution, then act only when confidence and selected probability both clear their floors.
BeginnerSep 2026View the full pattern on desktop
Problems solved
- Classify into a typed set of queues
- Use the full choice distribution, not only the top pick
- Send ambiguous cases to review via confidence floors
Use cases
- Support-ticket triage
- Form-submission routers
- Teaching Jev choice distributions and confidence
AI SDK APIs
experimental_evaluate
Tags
jevevaluationtyped-decisionschoiceconfidenceroutingai-sdk
Requirements
- Node.js
- 24+
- Memory
- 256MB
- Other
- Vercel AI Gateway API key
Environment variables
AI_GATEWAY_API_KEYGet key
External services
vercel-ai-gatewayupstash
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