ClaudSkills / General / education-learning

Code Qualities Assessment

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

Category: General · Sub-category: education-learning · Last updated: 2026-06-02

type:review

Assess code maintainability through 5 foundational qualities (cohesion, coupling, encapsulation, testability, non-redundancy) with quantifiable scoring rubrics. Works at method/class/module levels across multiple languages. Produces markdown reports with remediation guidance. Use when you ask to "assess maintainability", "score cohesion/coupling/testability" on specific code. Do NOT use for a full pre-merge review (use review) or repo-wide domain grading (use quality-grades).

About this skill (catalog notes)

Code Qualities Assessment includes worked examples; 12 code blocks for direct copy-paste. At roughly 1,562 words the SKILL.md is on the longer end of the catalog distribution.

License: MIT
Original author: rjmurillo
Indexed lastmod: 2026-06-02
Catalog position: General · education-learning
Indexed related skills: 10

How Code Qualities Assessment fits the catalog

Code Qualities Assessment sits in the General category under the education-learning 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

Evaluate code maintainability using 5 timeless design qualities with quantifiable scoring rubrics.

What this skill does

Code Qualities Assessment is a community-contributed Claude Code skill in the education-learning sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/code-qualities-assessment/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when you ask to "assess maintainability", "score cohesion/coupling/testability" on specific code. Do NOT use for a full pre-merge review (use review) or repo-wide domain grading (use quality-grades).

Who uses this skill

The Code Qualities Assessment 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 85,000+ 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/code-qualities-assessment
curl -L https://claudskills.com/skills/code-qualities-assessment/SKILL.md \
  -o ~/.claude/skills/code-qualities-assessment/SKILL.md

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

Skills live at ~/.claude/skills/code-qualities-assessment/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\code-qualities-assessment\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

Frequently asked questions

How do I install the Code Qualities Assessment Claude Code skill?

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

What does the Code Qualities Assessment 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 Code Qualities Assessment skill?

Use Code Qualities Assessment when your Claude Code task falls under the General category — specifically in the education learning 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 Code Qualities Assessment" or describe the task and let Claude pick). Browse related skills at /category/general/.

What is a Claude Code skill and how does the Code Qualities Assessment 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. Code Qualities Assessment 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

Source: https://github.com/rjmurillo/ai-agents/blob/HEAD/.claude/skills/code-qualities-assessment/SKILL.md
License: MIT
Author: rjmurillo

Cite this skill

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

APA

rjmurillo. (2026). Code Qualities Assessment [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/code-qualities-assessment/

BibTeX

@misc{code-qualities-assessment-2026,
  author    = {rjmurillo},
  title     = {Code Qualities Assessment [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/code-qualities-assessment/}
}

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

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