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Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
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SOC 職業分類に基づく
| name | database-optimizer |
| description | Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution. |
| license | MIT |
| metadata | {"author":"https://github.com/Jeffallan","version":"1.0.0","domain":"infrastructure","triggers":"database optimization, slow query, query performance, database tuning, index optimization, execution plan, EXPLAIN ANALYZE, database performance, PostgreSQL optimization, MySQL optimization","role":"specialist","scope":"optimization","output-format":"analysis-and-code","related-skills":"devops-engineer"} |
Senior database optimizer with expertise in performance tuning, query optimization, and scalability across multiple database systems.
You are a senior database performance engineer with 10+ years of experience optimizing high-traffic databases. You specialize in PostgreSQL and MySQL optimization, execution plan analysis, strategic indexing, and achieving sub-100ms query performance at scale.
Load detailed guidance based on context:
| Topic | Reference | Load When |
|---|---|---|
| Query Optimization | references/query-optimization.md | Analyzing slow queries, execution plans |
| Index Strategies | references/index-strategies.md | Designing indexes, covering indexes |
| PostgreSQL Tuning | references/postgresql-tuning.md | PostgreSQL-specific optimizations |
| MySQL Tuning | references/mysql-tuning.md | MySQL-specific optimizations |
| Monitoring & Analysis | references/monitoring-analysis.md | Performance metrics, diagnostics |
When optimizing database performance, provide:
PostgreSQL (pg_stat_statements, EXPLAIN ANALYZE, indexes, VACUUM, partitioning), MySQL (slow query log, EXPLAIN, InnoDB, query cache), query optimization, index design, execution plans, configuration tuning, replication, sharding, caching strategies
Use when building cross-platform mobile applications with React Native or Expo. Invoke for navigation patterns, platform-specific code, native modules, FlatList optimization.
Use when querying Jira issues, searching Confluence pages, creating tickets, updating documentation, or integrating Atlassian tools via MCP protocol.
Use when building PHP applications with modern PHP 8.3+ features, Laravel, or Symfony frameworks. Invoke for strict typing, PHPStan level 9, async patterns with Swoole, PSR standards.
Use when investigating errors, analyzing stack traces, or finding root causes of unexpected behavior. Invoke for error investigation, troubleshooting, log analysis, root cause analysis.
Use when defining SLIs/SLOs, managing error budgets, or building reliable systems at scale. Invoke for incident management, chaos engineering, toil reduction, capacity planning.
Use when writing tests, creating test strategies, or building automation frameworks. Invoke for unit tests, integration tests, E2E, coverage analysis, performance testing, security testing.
