query-store-reviewlisted

# SQL Server Query Store Review Skill ## Purpose Analyze SQL Server Query Store (`sys.query_store_*` DMV) output to identify the most impactful queries in a workload, detect performance regressions, surface plan instability, flag resource hotspots, audit Query Store configuration health, and detect SQL 2019/2022 IQP/PSP/DOP/CE feedback signals. Applies 32 checks across six categories: regressed queries (Q1–Q6), plan stability (Q7–Q12), resource hotspots (Q13–Q18), query-level waits (Q19–Q22), operational health (Q23–Q25), and modern IQP/feedback checks (Q26–Q32). Query Store is the most powerful built-in monitoring tool in SQL Server 2016+. It persists query execution history, plan history, runtime statistics, and wait statistics across server restarts — enabling trend analysis without external monitoring tools. This skill is the diagnostic counterpart to `sqlplan-review`: Query Store tells you *which* queries need attention; execution plan review tells you *why*. Based on Microsoft Query Store DMV documentation and SQL Server community best practices. ## Input Accept any of: - Raw `sys.query_store_runtime_stats` + `sys.query_store_query` + `sys.query_store_plan` query output (paste result grid) - `sys.query_store_wait_stats` output (SQL 2017+, optional) - Query Store configuration output from `sys.database_query_store_options` - A `.csv` or `.txt` file containing any of the above - A natural language description of Query Store findings ("3 queries regressed after the d