modernize

90 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By bendrucker/claude (GitHub) · coding · 18 stars · scanned at commit 497d619

Survey a project for ways to adopt newer language and major-dependency features that did not exist when the code was written, replacing boilerplate with modern idioms. Use when the user wants to modernize a codebase, adopt new language features, retire dependencies the stdlib now subsumes, or catch a project up to current framework APIs.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

The author does not mention this. Expected for a coding skill.

Found in 2 places.

user/skills/modernize/SKILL.md, line 56- **Detect the real runtime before assuming a language floor.** A Bun or Deno project has no `engines.node`. Bun implements `node:fs`, `child_process`, and frie
user/skills/modernize/references/detect.md, line 42These runtimes implement the `node:` builtins (`node:fs`, `child_process`, streams). Code using them is not stale. Replacing it with a runtime-native form like

Connects to the internet

The author does not mention this.

Found in 1 place.

user/skills/modernize/references/apply.md, line 233. If green, commit the batch with a message naming the feature adopted (e.g. `Adopt native fetch, drop node-fetch`). One coherent batch per commit keeps blame

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'modernize' ] || [ -L ~/.agents/skills/'modernize' ]; then echo 'A skill folder named modernize already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/bendrucker/claude' "$d" && git -C "$d" checkout --quiet '497d619eb22e6f93dd49c4d8f6ff4a52578e0949' -- 'user/skills/modernize' && mkdir -p ~/.agents/skills && cp -R "$d"/'user/skills/modernize' ~/.agents/skills/'modernize' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'modernize' ~/.claude/skills/'modernize' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

The badge for bendrucker/claude shows the score of its lowest-scoring skill.

SkillTrust badge for bendrucker/claude

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/bendrucker/claude.svg)](https://zalavijaysinh.github.io/skilltrust/repos/bendrucker/claude/)

Score history

Date	Version	Score
2026-11-11	`497d619`	90
2026-11-08	`ebe6d12`	90
2026-11-06	`be8a32e`	90