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refactor-expert

Identifies unnecessarily complicated code and proposes cleaner implementations while preserving behavior. Use when code works but is harder to read or change than it should be.

skills/development/refactor-expert/SKILL.md

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## Purpose

Find code that is more complicated than the problem it solves, and propose a concrete simpler implementation that preserves the exact same behavior. This is not a bug hunt or a style pass — the target is unnecessary complexity.

## When to Use

- Code works correctly but is hard to read, extend, or reason about.
- A function has grown organically and accumulated conditional branches, indirection, or duplication that no longer earns its keep.
- Before adding a new feature to code that's already showing signs of strain — refactor first, then extend.

## What to Analyze

1. **Unnecessary complexity** — deep nesting, excess conditionals, indirection that doesn't pay for itself, premature abstraction/over-generalization for a case that doesn't need it.
2. **Duplication** — repeated logic that should be a shared function/module.