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notes on memory systems for ai agents

• Introduction·26 July 2026·9 min

  Introducing Brain Memory: a memory system that forgets on purpose

  AI agents start every session at zero. The usual fixes treat memory as storage plus search. Brain models it the way remembering actually works — decay, reinforcement, association — in plain files you can read.

• Security·26 July 2026·8 min

  Provenance, not filtering: hardening brain against memory poisoning

  A single email can plant a false memory in an AI agent and keep it there. Here is the attack, where brain was exposed, and the write-path gate we shipped in response.