Complete procedures with a way back.

Deploy privacy-aware PostgreSQL 18.4 query statistics, identify normalized high-impact queries, capture safe estimated and actual plans, and validate one reversible fix.

Measure production token economics and user latency, design cacheable prompts and context budgets, and ship only quality-gated optimizations.

Baseline workload, enable bounded slow logging, protect and rotate files, summarize candidates, use EXPLAIN ANALYZE carefully, and prove improvement.

Measure script inventory, size OPcache deliberately, choose a deployment invalidation strategy, enable observability, and prove cache health.