redis-cache-strategy

# Redis Cache Strategy Review ## Quick Reference **§1** scope · **§2** gates (context, mode, risk, completeness) · **§3** depth · **§4** degradation modes · **§5** the checklist — the only item list · **§6** pattern selection · **§7** anti-example index · **§8** how §5's items are scored · **§9** output contract · **§10** which reference to load when. References: `cache-patterns.md` (patterns in depth) · `cache-failure-modes.md` (stampede / penetration / avalanche / hot key) · `distributed-locks.md` (fencing, renewal, failover) · `cache-anti-examples.md` (AE-1 … AE-13 with code) · `redis-version-matrix.md` (what each Redis version changes). --- ## §1 Scope **In scope** — Redis caching strategy for production backend services. The §5 checklist *is* the scope; it is not restated here, because a second copy of a list is the defect this skill spent a release removing. **Out of scope** — delegate to dedicated skills: - Redis cluster topology, persistence (RDB/AOF), replication config → `redis-best-practise` - Application code changes → `go-code-reviewer` or language-specific reviewer - Security hardening, ACL, TLS → `redis-best-practise` --- ## §2 Mandatory Gates Execute gates sequentially. Each gate has a **STOP** condition. ### Gate 1: Context Collection | Item | Why it matters | If unknown | |------|----------------|------------| | **Redis version** (major.minor) | Gates several concrete answers this skill gives — see below | **Never assume a version.** Answer in b...