Why Your AI Agent Gets Brain Damage, and How to Fix It - Tyler Barnes, Mastra

Tyler Barnes is a founding engineer at Mastra and the person behind its memory systems. In this chat with Shane, he explains observational memory — Mastra's fix for the thing every coding agent does where it fills up its context, compacts, and forgets what you were doing. A background agent watches the conversation and writes short observations, which replace bulky tool calls and messages in context, so you keep what matters and drop the noise. It scored state-of-the-art on the LongMemEval benchmark. Tyler also covers recall, extractors, subconscious memory that builds a knowledge graph, and agent signals for steering an agent mid-task.