Brainstorming output for the first sub-project derived from the
original "Notion-as-RAG export" idea. After scope clarification, that
vision split into two independent skills:
- 3b-i (this spec): semantic search foundation
- 3b-ii (separate, later): notion-to-notebooklm push
Locks five architectural decisions reached during brainstorming:
- Strategy C — query expansion + LLM rerank (closes the gap from
Notion's keyword-only native search)
- Standalone search skill, JSON output for downstream chaining
- Claude Haiku 4.5 for both stages (cheap, fast, plenty good)
- SHA256(query + candidate_ids) cache with 1-day TTL
- Permissive degradation matching Phase 3c parser philosophy
~850 LOC + tests. ~3 days estimated.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Andrew Yim
08e3dd7dae