Agent Learnings Portability Problem AI agents (Codex, Hermes, Codex, Gemini) accumulate valuable learnings in machine-local directories ( /.Codex/, /.hermes/, /.codex/, /.gemini/). Without explicit git tracking, these are lost on machine failure. Architecture: Three Tiers 1. Git-committed in (survives , PRIMARY): Memory facts, conventions, user context — travels with the repo 2. Rsync backup (survives single-machine failure): Large files — session transcripts, SQLite databases, full Codex project memory dirs 3. Regenerable (no backup needed): Caches, plugins, debug logs The Pattern (issue #18…