Ln 54 Codebase Auditor
Ln 54 Codebase Auditor is an agent skill (a SKILL.md file) from levnikolaevich/claude-code-skills. Audits cross-cutting codebase health, security and maintainability; not a single-change review or specialist audit. It works with Claude Code and Codex and has 584 GitHub stars. Install it by copying the skill folder into your agent's skills directory.
Data as of from the GitHub API; description from the skill's SKILL.md. Report an error
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add levnikolaevich/claude-code-skills
/plugin install quality-assurance-suite@levnikolaevich-skills-marketplaceIn the Claude apps, zip the ln-54-codebase-auditor folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/levnikolaevich/claude-code-skills.git
cp -r claude-code-skills/plugins/quality-assurance-suite/skills/ln-54-codebase-auditor .agents/skills/ln-54-codebase-auditor # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/levnikolaevich/claude-code-skills.git
cp -r claude-code-skills/plugins/quality-assurance-suite/skills/ln-54-codebase-auditor .cursor/skills/ln-54-codebase-auditor # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Audits cross-cutting codebase health, security and maintainability; not a single-change review or specialist audit. Goal: Perform a broad, read-only production-code health audit. Find concrete cross-cutting failure, security, delivery, and maintenance risks without turning detector matches or personal style preferences into findings. Do not substitute for documentation trust, test-portfolio, whole-architecture, or persistence-specific review.
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How do I install the Ln 54 Codebase Auditor skill?
In Claude Code, run /plugin marketplace add levnikolaevich/claude-code-skills and then /plugin install quality-assurance-suite@levnikolaevich-skills-marketplace. For Codex or Cursor, copy the ln-54-codebase-auditor folder into .agents/skills/ or .cursor/skills/.
Is the Ln 54 Codebase Auditor skill free?
Yes. The repository is open source under the MIT license.
Is Ln 54 Codebase Auditor maintained?
The repository's most recent commit was on Oct 18, 2026. Its latest release is v2026.10.18. appsgit only lists skills from repositories with a commit in the last six months.