Lessons

13 lessons are ready.

  1. The forgetful agent
  2. Memory is not context
  3. The field in one map
  4. Tiers of memory: the OS metaphor
  5. Four kinds of memory (+ goals)
  6. Schemas & namespaces
  7. The agent as its own memory manager
  8. SQLite as a memory engine
  9. Bounded file memory: the Hermes pattern
  10. When local is enough — and when it isn't
  11. Embeddings & vector search, from scratch
  12. Hybrid retrieval & Reciprocal Rank Fusion
  13. Reranking, filtering & knowing when to abstain

Coming soon

35 lessons are planned and not published yet. This course is still being built. The lessons that are ready stay open; the rest appear as they ship.

  • Coming soonEmbedding choices & the upgrade path
  • Coming soonExtraction: from conversation to candidates
  • Coming soonThe AUDN loop ◆
  • Coming soonThe ADD-only counter-design
  • Coming soonWrite amplification & significance
  • Coming soonFacts have validity intervals
  • Coming soonTemporal knowledge graphs: Graphiti ◆
  • Coming soonAssociative retrieval: HippoRAG & Personalized PageRank
  • Coming soonSupersession, tombstones & verified deletion ◆
  • Coming soonDecay: the Ebbinghaus strength model
  • Coming soonConsolidation cycles & sleep-time compute
  • Coming soonFrozen snapshots & session boundaries
  • Coming soonCompaction: shrinking the working set
  • Coming soonProvenance on every record
  • Coming soonWrite-gates: propose, review, commit ◆
  • Coming soonMemory poisoning
  • Coming soonIsolation & erasure rights
  • Coming soonSkills are memories that execute ◆
  • Coming soonSkill libraries & routing
  • Coming soonDual-loop evaluation
  • Coming soonRules as procedural memory
  • Coming soonOne memory, many agents
  • Coming soonThe daemon pattern ◆
  • Coming soonSync & replicas
  • Coming soonMemory over MCP (lesson build) ◆
  • Coming soonAssembling the prompt from memory
  • Coming soonPrefix caching & frozen state
  • Coming soonInside the cache: RadixAttention & eviction
  • Coming soonThe cost ledger
  • Coming soonThe benchmark landscape
  • Coming soonThe LongMemEval protocol ◆
  • Coming soonBenchmark literacy: auditing anyone's numbers ◆
  • Coming soonBuild the harness
  • Coming soonObservability & staleness
  • Coming soonDurability: backup, restore & the operating envelope