evaluate( )
Pattern
Jev Action Gate
Gate a proposed action with one Jev boolean probability and a code-owned auto-run threshold.
BeginnerSep 2026View the full pattern on desktop
Problems solved
- Gate a proposed action with one boolean probability
- Keep auto-run thresholds in application code
- Hold anything below the floor for human approval
Use cases
- Tool-call auto-approval floors
- Destructive-action confirmation gates
- Teaching Jev boolean probabilities
AI SDK APIs
experimental_evaluate
Tags
jevevaluationtyped-decisionsbooleanhuman-in-the-loopai-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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