Product updates, cognitive architecture notes, field reports, and comparison guides from building an AI runtime that actually remembers, self-heals, and compounds over time.
An honest field guide to mem0, Letta, Zep, mcp-memory, and NEXO Brain: what each one is really for, where each wins, and what category mistake most buyers make first.
An honest field guide to the five MCP memory tools we keep seeing in the wild — mem0, Letta, Zep, mcp-memory and NEXO Brain. Storage shape, extraction philosophy, forgetting and operational footprint, with guidance on which to pick for which agent.
Read articleNEXO now measures protocol compliance, project pressure, and engineering output across weekly/monthly Deep Sleep summaries, surfaces that signal in the dashboard, and enforces release readiness inside the repo before publish.
Read articleDeep Sleep now deduplicates followups by meaning, consolidates overlapping learnings into canonical records, flags contradictions for review, and backfills concrete engineering followups when recurring patterns imply a real fix.
Read articleNEXO now persists a managed Codex MCP contract in config, audits real recent Codex sessions and Claude Desktop metadata, writes weekly/monthly Deep Sleep summaries, and makes retrieval explanations more honest.
Read articleNEXO now backfills pre-existing Codex integrations during update, fixes blank bootstrap identities when operator metadata is missing, and persists that repaired client state so later syncs stay aligned.
Read articleNEXO now manages Codex global bootstrap and model sync, auto-enables HyDE and shallow spreading for the right queries, tracks per-memory stability and difficulty, and gives Deep Sleep a 60-day blended horizon.
Read articleNEXO now manages Claude and Codex bootstraps with a protected CORE/USER contract, explicitly starts Codex sessions as NEXO, and feeds Codex session transcripts into Deep Sleep overnight analysis.
Read articleNEXO now gives Claude Code, Codex, and Claude Desktop the same brain, lets users choose their terminal client and automation backend, and removes a frustrating false-critical runtime edge case with managed KeepAlive recovery.
Read articleVersion drift across npm, OpenClaw, and ClawHub is now impossible. NEXO 2.6.9 introduces automated artifact synchronization, a full CI/CD pipeline, and hardened packaging for every distribution channel.
Read articleNEXO Brain 2.6.7 introduces opt-in contributor evolution that lets any installation propose improvements to the core, personal MCP plugins that survive updates, and smoother memory continuity for daily use.
Read articleEvery AI agent starts each conversation from zero. Here is how persistent memory works, why context windows are not enough, and how NEXO Brain solves the problem with a cognitive architecture inspired by human psychology.
Read articleIn 1968 Atkinson and Shiffrin described how human memory flows through three stores. We applied their model to AI agents. Here is why cognitive psychology holds the key to building agents that learn over time.
Read articleStoring everything forever sounds smart until your agent drowns in irrelevant context. Memory decay is not a bug. Here is how Ebbinghaus forgetting curves keep AI memory clean, fast, and relevant.
Read articleOpen source, AGPL-3.0 licensed, and built for builders who want their AI to actually remember.