Summary
This is a triage guide for when Prometheus is actively on fire: OOMing, queries timing out, or your Grafana Cloud bill just doubled. It walks you through the tsdb status endpoints, shows you how to drill into per-metric and per-label breakdowns, and points you at the usual suspects (unbounded path labels, trace_ids leaking into metrics, histogram explosions). The best part is the opening rule: it explicitly warns you not to labeldrop distinguishing labels at scrape time, which looks like it fixes cardinality but actually merges distinct series and silently breaks rate() calculations. If you've ever stared at a cardinality fire and wondered where to start clicking, this gives you the runbook.
Install to Claude Code
npx -y skills add grafana/skills --skill prometheus-cardinality-troubleshooter --agent claude-codeInstalls into .claude/skills of the current project.
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Files
SKILL.md
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Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
