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Diagnose a slow Postgres query and add the right index using EXPLAIN ANALYZE.
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SOC 직업 분류 기준
| name | postgres-index-tuning |
| description | Diagnose a slow Postgres query and add the right index using EXPLAIN ANALYZE. |
| version | 1.0.0 |
| tags | ["postgres","database","performance"] |
| status | active |
EXPLAIN (ANALYZE, BUFFERS) on the slow query; look for Seq Scan on large tables.CREATE INDEX CONCURRENTLY in production to avoid locks).EXPLAIN ANALYZE and confirm the planner switched to an Index Scan.pg_stat_user_indexes — they only slow writes.Find the commit that introduced a regression automatically with git bisect run.
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Comprehensive guide for creating high-quality skills for Claude. Use when building a new skill, writing a SKILL.md, designing skill frontmatter, planning skill structure, debugging trigger issues, or reviewing an existing skill for improvements. Covers standalone skills, MCP-enhanced skills, and skill-tree programmatic skills.