Refactor

Name: Refactor
Author: github

Official

github·vlatest·backend·MIT

Automatically improves existing backend code quality, readability, and performance through intelligent refactoring suggestions.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

Run this in your project

terminal

$ npx skills add github/awesome-copilot --skill refactor -a claude-code

Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

github

Matched to the vendor's own GitHub organisation.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned 28 Sept 2026

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

Declares what it does: passed
SKILL.md parses and declares a name and a description.
SKILL.md exists, its frontmatter parses, and it declares a name and a description.
No undeclared network calls: passed
Makes no network calls.
Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.
No obfuscated payloads: passed
No encoded or obfuscated payloads.
No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.
No credential access: passed
Reads no keys, tokens, keychains or credential files.
Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.
No pipe-to-shell installers: passed
No pipe-to-shell or download-and-run installers.
No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.
Pinned to a commit: passed
Scanned github/awesome-copilot at 6c4d33b9cf.
The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit: 6c4d33b9cf
Manifest: skills/refactor/SKILL.md
Scanned: 1 file, 614 lines

This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.

What each check looks for →

About this skill

What it does

The refactor skill enables AI agents to restructure and improve existing code without changing its external behavior. It helps optimize performance, enhance readability, and modernize legacy systems by applying best practices and design patterns.

When to use it

You need to clean up messy or outdated code for better maintainability.
Your team wants to adopt new coding standards or frameworks in an existing project.
Performance bottlenecks are identified, and you want to optimize the codebase without rewriting it from scratch.

Key capabilities

Code restructuring while preserving functionality
Optimization of algorithms and data structures
Application of modern design patterns and best practices
Removal of redundant or obsolete code

Example prompts

"Refactor this Python function to use list comprehensions where possible."
"Improve the readability of this JavaScript module by organizing functions into logical groups."
"Modernize this legacy C++ codebase with contemporary coding standards."

Tips & gotchas

Ensure that unit tests are in place before refactoring to verify functionality remains unchanged.
Refactor incrementally to avoid introducing large-scale issues in one go.