Code Modernizer

Code Modernizer is a DevOps skill for Claude Code, published by levnikolaevich in claude-code-skills.

549 stars82 forkson levnikolaevich/claude-code-skillsAdded 2026/08/25+2% in starsRepository updated 2026/08/07

agent-skillsai-agentsanthropicclaude-codeclaude-code-skillscode-reviewcodebase-auditcodexdeveloper-productivitydeveloper-toolsgithub-actionsopenaiperformance-optimizationplugin-marketplaceproduct-discoverysoftware-architecturetesting

Install in seconds

Install Code Modernizer

Copy Code Modernizer into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/levnikolaevich/claude-code-skills/tree/master/plugins/optimization-suite/skills/ln-33-code-modernizer ~/.claude/skills/ln-33-code-modernizer

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/levnikolaevich/claude-code-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: plugins/optimization-suite/skills/ln-33-code-modernizer/SKILL.md in levnikolaevich/claude-code-skills
Installs to: ~/.claude/skills/ln-33-code-modernizer
Collection: One of 25 skills cataloged from this repository
Category: DevOps — 798 skills

What Code Modernizer does

Code Modernizer modernizes a bounded capability when replacing obsolete mechanisms reduces maintenance, risk, duplication, or artifact cost. Use it for proven modernization work, not routine upgrades or cosmetic refactors.

Code Modernizer is cataloged under DevOps on DirSkills. Code Modernizer comes from a repository tagged agent-skills, ai-agents, anthropic, claude-code and claude-code-skills.

Documentation

README

Excerpt

Code Modernizer

Goal: Modernize a bounded capability only when the new design measurably reduces human workflow friction, maintenance, risk, dependency duplication, or delivered artifact cost. Preserve behavior, isolate migrations, and revert changes that do not create net value.

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Code Modernizer

What else does levnikolaevich publish alongside Code Modernizer?
Code Modernizer is one of 25 skills that DirSkills catalogs from levnikolaevich/claude-code-skills, the repository it ships in. Its siblings there include Acceptance Test Builder, Architecture Auditor and Architecture Decision Recorder. Each one is a separate skill with its own page in this directory, installs the same way Code Modernizer does, and is maintained by levnikolaevich in that same repository. The rest of the collection is listed on the levnikolaevich/claude-code-skills page.
How does Code Modernizer compare to other DevOps skills?
Code Modernizer ranks #670 by stars among the 798 DevOps skills in this catalog. The most-starred ones next to it are Backend Patterns, API Connector Builder and Migration. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Code Modernizer against them. Open each page to compare what they document and how they install.