Database sharding for PostgreSQL/MySQL with hash/range/directory strategies. Use for horizontal scaling, multi-tenant isolation, billions of records, or encountering wrong shard keys, hotspots, cross-shard transactions, rebalancing issues.
/plugin marketplace add secondsky/claude-skills/plugin install database-sharding@claude-skillsInteractive learning mode that requests meaningful code contributions at decision points (mimics the unshipped Learning output style)
Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
Automated code review for pull requests using multiple specialized agents with confidence-based scoring