diagnose

Identify Cassandra version and establish a baseline health snapshot for diagnostics.

41|8|Updated Feb 17, 2026
One-click install
npx skills add https://github.com/rustyrazorblade/skills --skill diagnose-rustyrazorblade
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: diagnose
Source: https://github.com/rustyrazorblade/skills/tree/main/plugins/cassandra-expert/skills/diagnose
Command: npx skills add https://github.com/rustyrazorblade/skills --skill diagnose-rustyrazorblade

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Systematic diagnostics for Cassandra clusters to identify performance and reliability issues with a repeatable, version-aware approach.

Core Features & Use Cases

  • Version-aware diagnostics across Cassandra 3.x, 4.x, and 5.x to align tools and recommendations.
  • USE Method coverage (Utilization, Saturation, Errors) for CPU, memory, disk I/O, and network resources.
  • Outlier analysis and token skew considerations to detect hotspots and distribution issues.
  • Guided remediation steps using common commands like nodetool tpstats, netstats, and ring to triage and fix faults.

Quick Start

Ask me to start a guided Cassandra diagnostic session and specify the Cassandra version you are running.

Frequently Asked Questions about diagnose

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I troubleshoot Cassandra cluster latency and reliability issues systematically?

To troubleshoot Cassandra cluster latency and reliability issues systematically, apply the USE Method to evaluate CPU, memory, disk I/O, and network utilization across nodes, using version-aware nodetool checks to triage faults.

How do I diagnose Cassandra performance across different cluster versions?

Diagnose Cassandra performance across versions by establishing a baseline health snapshot and applying version-aware guidance for 3.x, 4.x, and 5.x to align nodetool telemetry checks and remediation strategies accurately.

What is the best way to detect token skew and hotspots in a Cassandra cluster?

The best way to detect token skew and hotspots in a Cassandra cluster is performing node-level comparisons and outlier analysis, evaluating resource saturation and distribution issues to identify uneven data load.

Can I use nodetool tpstats and netstats to triage Cassandra throughput issues?

Yes, you can use nodetool tpstats and netstats to triage Cassandra throughput issues by inspecting thread pool blockages and network traffic patterns, directing remediation steps for identified resource saturation.

Does this Cassandra diagnostic approach work without external telemetry agents?

Yes, this Cassandra diagnostic approach works without external telemetry agents by relying on standard nodetool commands like ring, tpstats, and netstats to establish baseline health and direct remediation strategies.