mysql

Use this skill for MySQL 数据库设计、性能与运维（DBA）相关任务。

Defaults / assumptions to confirm

• MySQL version (5.7 / 8.0)
• Storage engine (InnoDB)
• Character set/collation (utf8mb4)
• Replication topology (single-primary, multi-source, etc.)

Workflow

1. Understand workload and constraints

• Read/write ratio, QPS, data size growth.
• Latency SLO, peak patterns, critical tables/queries.