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Performance Tuning

Category: General  ·  Sub-category: hello-world-templates  ·  Last updated:
This skill should be used when analyzing MySQL query performance, running EXPLAIN, tuning indexes,
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From the source SKILL.md

This skill covers systematic MySQL performance analysis and optimization, from reading query execution plans to tuning InnoDB internals. Proper performance tuning follows a data-driven approach: measure first with EXPLAIN and the slow query log, identify bottlenecks with concrete metrics, then apply targeted optimizations. Avoid cargo-cult tuning -- every change should be justified by measurements and validated with before/after comparisons.

What this skill does

Performance Tuning is a community-contributed Claude Code skill in the hello-world-templates sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/performance-tuning/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Performance Tuning Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 146,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/performance-tuning
curl -L https://claudskills.com/skills/performance-tuning/SKILL.md \
  -o ~/.claude/skills/performance-tuning/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/performance-tuning/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/performance-tuning/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\performance-tuning\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Performance Tuning Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/performance-tuning/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Performance Tuning skill do?
This skill should be used when analyzing MySQL query performance, running EXPLAIN, tuning indexes,
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Performance Tuning skill?
Use Performance Tuning when your Claude Code task falls under the General category — specifically in the hello world templates area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Performance Tuning" or describe the task and let Claude pick). Browse related skills at /category/general/.
What is a Claude Code skill and how does the Performance Tuning skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Performance Tuning is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
jsamuelsen11. (2026). Performance Tuning [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/performance-tuning/
BibTeX
@misc{performance-tuning-2026,
  author    = {jsamuelsen11},
  title     = {Performance Tuning [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/performance-tuning/}
}

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Security scan

Grade A · scanned 2026-07-06 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (network), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

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