Is the Code Humanizer skill free?

Yes. The skill itself is free from LeonardNJU/code-humanizer. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Code Humanizer SkillProof Score?

8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.

How do I install Code Humanizer?

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 Humanizer 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 Humanizer

Scans AI-written code for 16 structural-slop patterns without changing behavior

by LeonardNJU · LeonardNJU/code-humanizer

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 8.8/10
Tested: Jul 20, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Jul 30, 2026 · a042206

⚠ This skill is no longer available upstream. Our re-check on Aug 10, 2026 couldn't find it any more (repo unreachable/deleted). The test below is what we measured on Jul 20, 2026 and we're leaving it up as a record — but there is nothing left to install, so we've removed the command.

On a planted slop file the skill's catalog caught the two tells my no-skill baseline missed: _is_valid_email reimplementing the differently-named utils.validate_email (pattern 1), and make_slug_v2 duplicating utils.slugify (pattern 2). It also forced the discipline the baseline skipped — grepping the repo to confirm export_users_to_dict had zero callers before deleting, and flagging the broad `except Exception` as behavior-risk to propose separately rather than silently narrowing to KeyError. Same file, materially safer and more complete review.

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 7/10
Docs & honesty 5/5

What Code Humanizer does

A 16-pattern catalog for finding and removing AI coding slop — reimplemented helpers, _v2 clones, single-use abstractions, broad exception swallowing, dead code, narrating comments — with severity grades and hard behavior-preservation rules. Triggers on requests to deslop, remove AI slop, humanize code, or review an AI-generated PR beyond tests passing.

How to install Code Humanizer

Nothing to install: the source repository no longer has this skill. If the author brings it back, our daily re-check will pick it up and the command will reappear here.

Commands — how to trigger Code Humanizer

/code-humanizer Scans AI-written code for 16 structural-slop patterns without changing behavior

It also activates on plain-language prompts like these:

Scan this AI-generated PR for slop patterns before I merge it
Remove the duplicated _v2 helpers and dead code from this file
This function swallows exceptions too broadly, help me clean it up

Frequently asked questions

Is the Code Humanizer skill free?: Yes. The skill itself is free from LeonardNJU/code-humanizer. SkillProof publishes the install command and an independent test verdict at no cost.
Does Code Humanizer work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 20, 2026. Verdict: Tested · Works. On a planted slop file the skill's catalog caught the two tells my no-skill baseline missed: _is_valid_email reimplementing the differently-named utils.validate_email (pattern 1), and make_slug_v2 duplicating utils.slugify (pattern 2). It also forced the discipline the baseline skipped — grepping the repo to confirm export_users_to_dict had zero callers before deleting, and flagging the broad `except Exception` as behavior-risk to propose separately rather than silently narrowing to KeyError. Same file, materially safer and more complete review.
What is the Code Humanizer SkillProof Score?: 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 5/5.
How do I install Code Humanizer?: 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 Humanizer 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.