https://mycobrain.dev/blog Technical posts, case studies, and research from the Myco Brain team. en-us https://mycobrain.dev/blog/agent-memory-10000-conversations https://mycobrain.dev/blog/agent-memory-10000-conversations Wed, 03 Jun 2026 00:00:00 GMT How we built a memory system that scales to tens of thousands of agent interactions. Deterministic writes, confidence gating, and graph traversal keep retrieval precise as the corpus grows. https://mycobrain.dev/blog/knowledge-graph-not-vector-db https://mycobrain.dev/blog/knowledge-graph-not-vector-db Wed, 27 May 2026 00:00:00 GMT Vector databases are the default for agent memory. We ripped ours out. Here's why a relational knowledge graph on Postgres outperforms pure vector search for agent recall. https://mycobrain.dev/blog/noise-problem-ai-agent-memory https://mycobrain.dev/blog/noise-problem-ai-agent-memory Wed, 20 May 2026 00:00:00 GMT We audited 10,134 agent memory entries and found 97% were noise. Why this happens, why vector databases make it worse, and the deterministic system that fixes it. https://mycobrain.dev/blog/97-percent-noise https://mycobrain.dev/blog/97-percent-noise Wed, 20 May 2026 00:00:00 GMT We audited 10,134 memory entries and labeled 9,791 as noise — duplicates, hallucinations, or malformed extractions. Here's how we measured it and how you can reproduce it.