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How to Build a Portable AI Second Brain That Works Across Claude, Codex, and Hermes

MindStudio's guide series details building a portable AI second brain using plain markdown files and folders readable by any agent harness, avoiding vendor lock-in. The five-level architecture ranges from basic folder routing to semantic search and knowledge graphs, with patterns for routing rules and memory.

How to Build a Portable AI Second Brain That Works Across Claude, Codex, and Hermes — AIBriefs