How do I install the Tuner Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/tuner/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

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.

ClaudSkills / General / general-misc

Tuner

Category: General · Sub-category: general-misc · Last updated: 2026-05-08

EXPLAIN ANALYZE, query plan optimization, index recommendations, and slow query detection/fixing. Complements Schema's schema design. Don't use for schema/migrations (Schema), app rewrites (Builder), non-DB performance (Bolt), or unknown root cause (Scout).

From the source SKILL.md

<!-- CAPABILITIES_SUMMARY: - explain_analyze: Analyze query execution plans with EXPLAIN ANALYZE and annotate bottlenecks - index_recommendation: Recommend optimal index strategies with read/write trade-off quantification - slow_query_detection: Detect and diagnose slow queries using P50/P95/P99 latency analysis - query_rewriting: Rewrite queries for better performance while preserving intent - schema_optimization: Optimize schema design for query performance including partitioning and MVs - database_profiling: Profile database workload patterns and connection pool utilization -…

What this skill does

Tuner is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/tuner/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Tuner skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It is part of the open ClaudSkills registry, a community-curated catalog of 56,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

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

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

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

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

More General skills

Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all General skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Code skills. · What's New · Install guide · About · llms.txt

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Tuner

From the source SKILL.md

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

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