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tidb-cluster-inspector

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Comprehensive TiDB cluster inspection. Checks cluster topology, node health, slow queries, hot regions, TiKV storage status, PD scheduling, leader skew, and TopSQL drain (latency / execution count / memory). Outputs a full inspection report with prioritized findings. Compatible with TiDB v4.0+.

tidb_cluster_inspector/SKILL.md

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# TiDB Cluster Inspector

## Overview

TiDB clusters have a complex distributed architecture (TiDB + PD + TiKV) where issues in any component can cascade. This skill performs a systematic inspection across all layers:

1. **Topology** — Map all nodes, versions, uptime
2. **Node Health** — Check each TiDB/PD/TiKV node status
3. **Slow Queries** — Identify TOP N slow queries
4. **Hot Regions** — Detect read/write hotspots (hot-degree ranked)
5. **TiKV Storage** — Capacity and region distribution
6. **PD Scheduling** — Leader/region balance check
7. **Leader Skew** — Detect leader concentration imbalance across TiKV stores
8. **TopSQL** — Rank SQL by total latency, execution count, and memory
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