Decision Log — 2026-03
2026-08-12 从 decision-log.md 按月份拆分（>40KB 维护规则）——内容与原文一致。索引: decision-log
2026-03-20: Two D1 Databases
Decision: Keep quotation-saas and hs-design-quotes SEPARATE
Context:
quotation-saas(b1381cb9) — New SaaS apphs-design-quotes(8d776216) — Landing page / staff portal
Reason: Don’t mix production SaaS with landing page data
2026-03-15: Memory Tool vs Session Logs vs Wiki
Decision: Three-tier memory system
| Layer | Tool | Content | Duration |
|---|---|---|---|
| Short-term | session_search | Past session transcripts | Indefinite |
| Medium-term | memory tool | User preferences, stable facts | Persistent |
| Long-term | Obsidian wiki | Cross-session synthesized knowledge | Permanent |
Rule: Never save task progress to memory. Session outcomes in transcripts only.