clean-code

clean-code is a skill for Claude Code, Codex from liza-mas/liza. It costs 10 tokens per session (3,470 once invoked), scanned A, original, Apache-2.0.

A pre-commit code-cleanup guide for making changed code easier for the next developer to read and maintain.

In plain words
What is it for?
Use it to review staged changes, clean a whole file, or inspect the changes from a specific Git commit.
Why use it?
It helps catch unnecessary complexity before code is committed, while avoiding generated, third-party, deleted, or known-buggy code.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/liza-mas/liza/clean-code
Any agent
npx skills add liza-mas/liza --skill clean-code
Clone the repo
git clone --depth 1 https://github.com/liza-mas/liza

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for clean-code

README.md
[![agentmods](https://agentmods.dev/badge/skills/liza-mas/liza/clean-code.svg)](https://agentmods.dev/skills/liza-mas/liza/clean-code)
Your own site
<a href="https://agentmods.dev/skills/liza-mas/liza/clean-code"><img src="https://agentmods.dev/badge/skills/liza-mas/liza/clean-code.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,470 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00010 $0.03470
Opus 5 $0.00005 $0.01735
Sonnet 5 $0.00002 $0.00694
Haiku 4.5 $0.00001 $0.00347

Measured 5d ago against content hash a73b52401454, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

clean-code scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/clean-code/SKILL.md · 341 lines

How it starts

The opening of the file, as written. The whole thing — 341 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Clean Code is a reader's gift — refactor for the next developer, not the compiler.

Boy Scout Rule: Leave the code cleaner than you found it.

Input

Argument Scope Source Pre-flight
(none) git diff --cached Full (staged changes required)
<commit-sha> git diff <sha>^..<sha> Validation + concurrent work only

When a commit SHA is provided, changes are made directly to files — the user reviews and amends. Skip staging-dependent pre-flight steps (staged check, stash backup).

Modes

Mode Scope When
Staged (default) git diff --cached Pre-commit cleanup
Full-file Any file (no staging required) Deeper refactoring session

Announce mode: "Cleaning in [mode]. Override?"

Exclusion Criteria

Do not clean:

  • Generated code — will be overwritten on next generation
  • Vendored/third-party code — clean upstream, not the copy
  • Code scheduled for deletion — verify: open task/PR to remove?
  • Code with known bugs in staged area — refactoring may mask the bug or make it harder to isolate. Fix bug first, then clean.
  • Files under active development on other branches — see concurrent work check; requires acknowledgment

If exclusion is uncertain, ask. The default is to skip, not to clean.

Pre-flight Checks

  1. Language detection — detect from staged file extensions, load languages/<lang>.md. Populates $TEST_CMD, $COVERAGE_CMD, and all Tool Map variables. See Language-Specific Patterns. Mixed languages: see that section's mixed-language rule.

  2. Staged changes exist (skip when commit SHA provided)

   git diff --cached --quiet && echo "Nothing staged" && exit 1
  1. Tests pass (Pairing only; multi-agent mode uses task-focused tests)
   $TEST_CMD || exit 1
  1. Coverage gate (tiered by transformation risk; Pairing runs it, multi-agent mode reuses existing task-scoped evidence)
  • Pairing: Run $COVERAGE_CMD && diff-cover $COVERAGE_REPORT --compare-branch=HEAD
  • diff-cover maps coverage to staged hunks (language-agnostic — any Cobertura XML)

Read the full file on GitHub · 341 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 341 lines · 10 tokens per session scan A a73b52401454

Subscribe to this mod's changes

clean-code is a skill published in the GitHub repository liza-mas/liza (364 stars, last pushed 3d ago), licensed Apache-2.0. It adds 10 tokens to every session and 3,470 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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