Per Gemini consultation on model switching:
- Added future expansion section for Chronicler Orchestration Layer
- Middleware routing (Haiku/4.5/4.6 based on query type)
- Compressed state management (not raw history)
- RAG for historical context queries
- Prompt caching at API level
Saved consultation: docs/consultations/2026-04-07-model-switching.md
Long-term solution integrated into Codex roadmap.
Short-term: exploring Claude Projects optimization.
Chronicler #66 - The Indexer