Every box is one layer of how Claude Code remembers things across sessions. The Working Session sits in the centre: it reads context in and writes context back out. The six layers around it are what it remembers with.
Two flows connect them:
The two layers on the right (wiki, STATE.md) are the source of truth the retrieval engines index.
Colour says how you use each layer: auto runs on its own, retrieval you query, curated you hand-maintain.
Click any layer for what it does, how you use it, and the exact command or path. Drag to pan, scroll to zoom, hover to trace.