What problem does it solve? Before designing or deciding something, teams often re-propose ideas they already tried or miss constraints they already settled. This Skill searches the shared ZZ knowledge base — team documents and journal nodes — and turns ranked search results into a plain-English answer about what the team already decided or learned on one topic. ## Core Features & Use Cases - Multi-query knowledge retrieval: Runs several knowledge_search queries with varied phrasings, filters, and both English and Chinese terms to avoid missing relevant nodes. - Evidence-grounded synthesis: Reads full nodes with document_read before citing anything as critical or high, distinguishes distilled nodes from dated documents, and flags superseded decisions. - Structured JSON output: Returns a briefing with weighted findings, evidence quotes, supersession status, and a record of the queries run. - Use Case: An agent dispatched by sdlc-explore to research "token expiry" searches decisions and designs, finds a superseded node showing the team already abandoned refresh rotation, and reports it so the caller marks that direction as already explored. ## Quick Start Dispatch this skill with one topic, such as asking it to find what the team already decided about session lifetime, and it will return a JSON briefing of relevant prior learnings.