vanterx/mssql-performance-skills
Skill Claude CodeCodex
Batch-analyze a folder of SQL Server .sqlplan files and produce a summary dashboard of the top issues, most common check violations, and deduplicated missing indexes across all plans. Use this skill whenever a user has a folder or collection of .sqlplan files; asks for a workload-level summary across multiple plans…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Diff two SQL Server execution plans (baseline vs regression) to identify what changed — join strategies, memory grants, operator topology, new warnings, and missing indexes. Applies 20 checks (C1–C20). Use when a query regressed after a deployment, statistics update, schema change, or SQL Server version upgrade.
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze SQL Server execution plans for performance anti-patterns, bottleneck identification, and actionable fix recommendations. Applies 111 checks (S1–S38 statement-level, N1–N73 node-level) covering memory grants, parallelism, cardinality errors, spills, scans, index usage, IQP/PSP features, ADR, CE feedback, hidden…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze SQL Server procedure/trigger/function runtime stats collected from sys.dmexecprocedurestats into collect.procstats. Applies 25 checks (R1–R25) across five categories — top consumers, per-execution efficiency, pattern detection, trend analysis, and advanced runtime patterns. Use when pasting output from the…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze SQL Server Query Store data to identify regressed queries, plan instability, top resource consumers, query-level wait patterns, configuration issues, and SQL 2019/2022 IQP/PSP/DOP/CE feedback signals. Applies 32 checks (Q1–Q32). Use when a user pastes Query Store DMV output or asks about workload performance…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyzes SQL Server SPN (Service Principal Name) configuration and Kerberos delegation settings to diagnose authentication failures, NTLM fallback, and double-hop connectivity problems. Use this skill when users receive Kerberos errors, linked servers fall back to NTLM, AG listener connections fail, or constrained…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Parse and analyze SQL Server SET STATISTICS IO, TIME ON output. Extracts per-table IO metrics and per-statement CPU/elapsed times, computes % logical read share, detects 27 performance patterns (I1–I18 IO checks, W1–W9 time checks). Use when a user pastes SSMS statistics output or asks why a query does too much I/O.
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze SQL Server trace files and Extended Events output to identify workload-level performance patterns. Applies 25 checks (X1–X12 event-level, X13–X25 workload aggregate) covering long-running queries, high-frequency N+1 patterns, parameter sniffing signals, recompilations, lock timeouts, hash/sort warnings, top…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze SQL Server wait statistics to identify why the server or a session is slow. Applies 44 checks (V1–V44) covering I/O, locks, parallelism, memory, CPU, TempDB, log I/O, network, latch contention, log space exhaustion, poison/throttle waits, backup I/O, insert hotspots, cumulative skew detection, multi-snapshot…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze SQL Server Reporting Services (SSRS) report server trace logs, RSReportServer.config / ReportingServicesService.exe.config excerpts, ExecutionLog3 query output, and related Windows Event Log entries to diagnose failed report server startups, database connectivity errors, memory pressure and AppDomain…
vanterx/mssql-performance-skills
Skill Claude CodeCodex
Analyze raw T-SQL source code for anti-patterns, security risks, and static performance smells. Applies 85 checks (T1–T85) across structural, correctness, security, deprecated syntax, performance, and SQL 2017–2022 modern syntax categories. Use this skill whenever a user pastes a stored procedure, function, view…