{"id":20720,"plugin_id":"plugins_6aa698dc64588191b48664000f8522de","kind":"skill","collection_source":null,"comparison_source":null,"observed_at":"2026-09-30T23:16:27.004Z","digest":"04d53ce2159b3c573443e8a943ac8ab4e53678b8942428fb67d84a02f4a0e907","against":null,"payload":{"description":"Run structured explain/explain-analyze workflows and convert plan output into explainable optimization insights.","included_files":[],"name":"explain-query","skill_md_contents":"---\nname: explain-query\ndescription: \"Run structured explain/explain-analyze workflows and convert plan output into explainable optimization insights.\"\n---\n\n# Explain Query\n\n## Use when\n- User asks why query is slow.\n- Planner needs operator-level bottleneck explanation.\n\n## Workflow\n1. Parse query intent and classify risk (read-only preferred mode).\n2. Collect `EXPLAIN` and `EXPLAIN ANALYZE` output in deterministic form.\n3. Annotate scan patterns, joins, sort/hash/temp spills, and lock indicators.\n4. Produce rewrite hypotheses with confidence scores.\n\n## Governance\n- Default to dry-run style if query could mutate data.\n- Provide \"why\" and \"impact estimate\" before any recommendation.\n\n## Output\n- `plan`, `bottlenecks`, `rewriteHints`, `estimatedCost`, `confidence`\n"},"changes":[],"summary":"First saved snapshot. No earlier version is available for comparison.","summary_kind":"deterministic","summary_metadata":{}}