evaluate( )
Pattern
Jev Memory
Long-term agent memory with three Jev gates. Keep durable facts, recall what fits a token budget, and evict what went stale. Nothing is rewritten.
BeginnerSep 2026View the full pattern on desktop
Problems solved
- Keep only durable facts in agent memory
- Recall the memories that fit a token budget for this turn
- Evict memories that newer turns made stale
Use cases
- Long-term memory for a chat agent
- Filtering what an agent writes to memory
- Compacting stale facts out of a memory store
AI SDK APIs
experimental_evaluate
Tags
jevevaluationmemorylong-term-memorybooleanscoreai-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
Ready to use?
View the full interactive pattern with live preview and copy the source code.
View the pattern on desktop
