Three-layer architecture

The structural commitment behind the llm-wiki-pattern.

Layer	Owned by	Mutable?	This vault
Raw sources	Human (curates)	Immutable to LLM	raw/
Wiki	LLM	LLM writes, human reads	wiki/
Schema	Co-evolved	Both edit, deliberately	CLAUDE.md

Why separated

• Raw is auditable. Any wiki claim can be traced back to a source whose text didn’t change under it.
• Wiki is the LLM’s working memory across sessions. Free to be rewritten as understanding sharpens.
• Schema is the contract. Changing it changes how all future ingests/queries behave — should be a deliberate act.

Failure modes if you collapse them

• LLM edits raw → can’t trust sources anymore (silent drift).
• Schema lives in chat history → next session forgets the conventions, every wiki page drifts.
• No wiki layer → you’re back to RAG; nothing compounds.