Is the Code Simplifier skill free?

Yes. The skill itself is free from fanqingxuan/awesome-skills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Code Simplifier SkillProof Score?

9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.

How do I install Code Simplifier?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Code Simplifier with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Code Simplifier

Refactors recently-touched code for clarity while proving behavior is unchanged -- kills nested ternaries and magic numbers.

by fanqingxuan · fanqingxuan/awesome-skills

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.2/10
Tested: Jul 15, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 9dfc65f

Ran a real node vm test of 80 input combinations against the original, a naive baseline refactor, and the skill-guided refactor of a discount-pricing function: 0 mismatches for both, but only the skill version actually eliminated the nested ternary and inlined magic numbers as the skill's own rules demand -- the baseline kept one nested ternary out of natural habit.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 5/5

What Code Simplifier does

A single-file prompt that pushes Claude to simplify and refactor code just written or modified, favoring explicit if/else chains and named functions over nested ternaries and dense one-liners, while never changing behavior. Triggers on simplify/refactor/clean-up-code phrasing in English or Chinese, and is designed to run proactively after code changes rather than only on explicit request.

How to install Code Simplifier

git clone https://github.com/fanqingxuan/awesome-skills
cd awesome-skills
mkdir -p ~/.claude/skills
cp -r skills/code-simplifier ~/.claude/skills/code-simplifier

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Code Simplifier

/code-simplifier Refactors recently-touched code for clarity while proving behavior is unchanged -- kills nested ternaries and magic numbers.

It also activates on plain-language prompts like these:

Clean up this nested ternary pricing function I just wrote
Simplify this calcPrice function without changing its behavior
Refactor this messy discount logic into clearer if/else code

Frequently asked questions

Is the Code Simplifier skill free?: Yes. The skill itself is free from fanqingxuan/awesome-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Code Simplifier work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 15, 2026. Verdict: Tested · Works. Ran a real node vm test of 80 input combinations against the original, a naive baseline refactor, and the skill-guided refactor of a discount-pricing function: 0 mismatches for both, but only the skill version actually eliminated the nested ternary and inlined magic numbers as the skill's own rules demand -- the baseline kept one nested ternary out of natural habit.
What is the Code Simplifier SkillProof Score?: 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
How do I install Code Simplifier?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Code Simplifier with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.