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Red Green Refactor

Category: Engineering  ·  Sub-category: code-quality  ·  Last updated:
Guides the red-green-refactor TDD workflow: write a failing test first, implement the minimum code to make it pass, then refactor while keeping tests green. Use when a user asks to practice TDD, write tests first, follow red-green-refactor, do test-driven development, write failing tests before code, or phrases like 'make the test pass', 'test coverage', or 'unit tests before implementation'.
Security AStatic scan found no risk patternsHow grading works ›

About this skill (catalog notes)

Red Green Refactor includes pricing or quota commentary; 6 code blocks for direct copy-paste. The SKILL.md runs to about 712 words, in the catalog's typical mid-range.

Source
agenstskills.com
License
Apache-2.0
Original author
rohitg00
Indexed lastmod
Catalog position
Engineering · code-quality
Indexed related skills
10

How Red Green Refactor fits the catalog

Red Green Refactor sits in the Engineering category under the code-quality sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

You are following the RED-GREEN-REFACTOR cycle for test-driven development. Every new feature, bug fix, or behavior change starts with a failing test.

What this skill does

Red Green Refactor is a community-contributed Claude Code skill in the code-quality sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/red-green-refactor/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when a user asks to practice TDD, write tests first, follow red-green-refactor, do test-driven development, write failing tests before code, or phrases like 'make the test pass', 'test coverage', or 'unit tests before implementation'.

Who uses this skill

The Red Green Refactor Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 158,000+ 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/red-green-refactor
curl -L https://claudskills.com/skills/red-green-refactor/SKILL.md \
  -o ~/.claude/skills/red-green-refactor/SKILL.md

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

Skills live at ~/.claude/skills/red-green-refactor/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\red-green-refactor\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.

Frequently asked questions

How do I install the Red Green Refactor Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/red-green-refactor/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Red Green Refactor skill do?
Guides the red-green-refactor TDD workflow: write a failing test first, implement the minimum code to make it pass, then refactor while keeping tests green. Use when a user asks to practice TDD, write tests first, follow red-green-refactor, do test-driven development, write failing tests before code, or phrases like 'make the test pass', 'test coverage', or 'unit tests before implementation'.
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 Red Green Refactor skill?
Use Red Green Refactor when your Claude Code task falls under the Engineering category — specifically in the code quality 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 Red Green Refactor" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Red Green Refactor 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. Red Green Refactor is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering 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
rohitg00. (2026). Red Green Refactor [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/red-green-refactor/
BibTeX
@misc{red-green-refactor-2026,
  author    = {rohitg00},
  title     = {Red Green Refactor [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/red-green-refactor/}
}

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Security scan

Grade A · scanned 2026-07-23 — free static scan against the OWASP Agentic Skills Top 10.

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

Browse all Engineering skills → Top 100 skills
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