Gandy

Q: What is a Claude Code skill and how does the Gandy 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. Gandy is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Security · Sub-category: web-security · Last updated: 2026-06-08

DB 조회/분석 지원. gandy 쿼리, .gandy 설정, 데이터 수집/분석 워크플로우. Use when querying databases, writing gandy queries, setting up .gandy project config, collecting or analyzing DB data, exploring table structure, or any situation involving gandy, pj:db. Also use when user needs data from postgres or sqlite for investigation, reporting, or debugging. Do NOT use for SQL migration, schema design, or ORM framework setup (use devops instead).

From the source SKILL.md

gandy — Interactive Ruby Database Console. Sequel 기반이지만 AR 스타일 API를 제공하여 ActiveRecord처럼 사용 가능. PostgreSQL, SQLite 지원.

What this skill does

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

When to invoke it: Use when querying databases, writing gandy queries, setting up .gandy project config, collecting or analyzing DB data, exploring table structure, or any situation involving gandy, pj:db.

Who uses this skill

The Gandy Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ 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/gandy
curl -L https://claudskills.com/skills/gandy/SKILL.md \
  -o ~/.claude/skills/gandy/SKILL.md

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

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

📱 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 Gandy Claude Code skill?

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

What does the Gandy skill do?

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 Gandy skill?

Use Gandy when your Claude Code task falls under the Security category — specifically in the web security 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 Gandy" or describe the task and let Claude pick). Browse related skills at /category/security/.

What is a Claude Code skill and how does the Gandy 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. Gandy is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/ssiumha/dots/blob/15a770923359b9a69998d7ef144a18d587d76a60/prompts/skills/gandy/SKILL.md
Author: ssiumha

Cite this skill

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

APA

ssiumha. (2026). Gandy [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/gandy/

BibTeX

@misc{gandy-2026,
  author    = {ssiumha},
  title     = {Gandy [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/gandy/}
}

Embed this skill

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Badge

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