refactor-expert

Included with Lifetime

$97 forever

Guide safe, incremental refactoring that improves code quality without changing behavior.

Code Review

What this skill does


> **AI-consumed reference.** Optimized for Claude to read during execution.
> Human-readable explanation: see [docs/architecture/HIERARCHICAL_PLANNING.md](../../../docs/architecture/HIERARCHICAL_PLANNING.md)
> or [docs/getting-started/](../../../docs/getting-started/) depending on topic.


# Skill: Refactor Expert

Safe, incremental refactoring. Improve quality without changing behavior.

---

## Commands

| Command | Output |
|---------|--------|
| `refactor:analyze <file>` | `.claude/logs/refactors/{target}-analysis.md` |
| `refactor:plan <file>` | `.claude/logs/refactors/{target}-plan.md` |
| `refactor:docs <file>` | Analysis + Plan + Summary |
| `refactor:quick <file>` | Skip approvals |
| `refactor:performance <file>` | Performance-focused |
| `refactor:structure <file>` | Structure-focused |

---

## Decision

| Signal | Action |
|--------|--------|
| Code smell detected | Identify specific smell |
| Tests passing | Safe to refactor |
| No tests | Write tests FIRST |
| Large change | Break into small steps |

**Golden Rule:** Never refactor and add features simultaneously.

---

## Code Smells -> Refactoring

| Smell | Refactoring |
|-------|-------------|
| Long Method | Extract Method |
| Large Class | Extract Class |
| Long Parameter List | Parameter Object |
| Duplicate Code | Extract Method/Class |
| Feature Envy | Move Method |
| Primitive Obsession | Replace with Object |
| Switch Statements | Polymorphism |
| Dead Code | Delete it |

---

## Safe Process

```
1. Ensure tests pass
2. ONE small change
3. Run tests
4. Commit
5. Repeat
```

Never multiple changes between test runs.

---

## Checklist

**Before:** Tests exist and pass, understand current behavior, identify smell.
**During:** One change at a time, test after each, commit frequently.
**After:** All tests pass, code cleaner, behavior unchanged.

---

## Related Rules

- `rules/core/simplicity-over-complexity.md` — the point of refactoring: Rule of 3 before abstracting, delete before extracting, flatten before nesting
- `rules/core/tdd-workflow.md` — refactor only when tests are green
- `rules/core/verification.md` — tests must still pass after every step
- `rules/workflow/cross-review-workflow.md` — refactorer ≠ reviewer
- `skills/code-simplifier/SKILL.md` — companion skill for pure simplification passes

---

Files: 1

Size: 2.6 KB

Complexity: 10/100

Category: Code Review

Source: https://github.com/nguyenthienthanh/aura-frog/tree/main/aura-frog/skills/refactor-expert

Related in Code Review

gstack

Included

Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with elements, verify state, diff before/after, take annotated screenshots, test responsive layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots. (gstack)

Code Reviewscriptsfeatured

startup-due-diligence

Included

Legal due diligence review for seed-stage and Series A startups (US, Delaware C-Corp focus). Supports both investor and founder perspectives. Capabilities include: (1) Interactive document review and issue spotting; (2) Document request list generation; (3) Cap table and SAFE/convertible note analysis; (4) Red flag identification with severity ratings; (5) Diligence report generation. TRIGGERS: due diligence, DD, startup investment, cap table review, Series A, seed round, investor diligence, legal review startup, SAFE analysis, convertible note, 409A, founder vesting.

Code Reviewscripts

interview-master

Included

This skill should be used when the user asks to "generate interview questions", "prepare for interview", "optimize resume", "conduct mock interview", "analyze git commits for resume", "generate resume from code", "review my resume", or mentions interview preparation, career assistance, or extracting project experience from git history. Provides comprehensive interview and career development guidance for both job seekers and interviewers.

Code Reviewscripts

fix-issue

Included

Fixes GitHub issues using parallel analysis agents for root cause investigation, code exploration, and regression detection. Reads issue context from gh CLI, searches codebase and memory for related patterns, generates a fix with tests, and links the resolution back to the issue via PR. Includes prevention analysis to avoid recurrence. Use when debugging errors, resolving regressions, fixing bugs, or triaging issues.

Code Reviewscripts

sf-apex

Included

Generates and reviews Salesforce Apex code with 150-point scoring. TRIGGER when: user writes, reviews, or fixes Apex classes, triggers, test classes, batch/queueable/schedulable jobs, or touches .cls/.trigger files. DO NOT TRIGGER when: LWC JavaScript (use sf-lwc), Flow XML (use sf-flow), SOQL-only queries (use sf-soql), or non-Salesforce code.

Code Reviewscripts

swift-development

Included

Comprehensive Swift development for building, testing, and deploying iOS/macOS applications. Use when Claude needs to: (1) Build Swift packages or Xcode projects from command line, (2) Run tests with XCTest or Swift Testing framework, (3) Manage iOS simulators with simctl, (4) Handle code signing, provisioning profiles, and app distribution, (5) Format or lint Swift code with SwiftFormat/SwiftLint, (6) Work with Swift Package Manager (SPM), (7) Implement Swift 6 concurrency patterns (async/await, actors, Sendable), (8) Create SwiftUI views with MVVM architecture, (9) Set up Core Data or SwiftData persistence, or any other Swift/iOS/macOS development tasks.

Code Reviewscripts