ponytail-review

Review code diffs for over-engineering patterns like YAGNI and unnecessary deletions.

66|13|Updated Jan 25, 2026

Search Tags:#code quality #code review #over-engineering #code simplification #review tool

Ready to run

npx skills add https://github.com/uplbtools/room-tba --skill ponytail-review-uplbtools

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: ponytail-review
Source: https://github.com/uplbtools/room-tba/tree/main/.cursor/skills/ponytail-review
Command: npx skills add https://github.com/uplbtools/room-tba --skill ponytail-review-uplbtools

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill helps developers streamline their code review process by identifying and removing over-engineered code patterns, thus improving code quality and maintainability.

Core Features & Use Cases

Identifies Over-Engineering: Flags code for over-engineering, including unnecessary deletions, use of standard library functions, native code, YAGNI (You Ain't Gonna Need It), and code shrinkage.
Use Case: After running a code review with the 'agent-contract', use ponytail-review to further simplify the code and ensure it meets the desired quality standards.

Quick Start

Run the ponytail-review skill on your code diff to automatically review and suggest simplifications.

Frequently Asked Questions about ponytail-review

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I identify over-engineering patterns in my code diff?▼

You can identify over-engineering patterns in a code diff by running an automated review tool that flags unnecessary deletions, standard library function usage, native code, and YAGNI violations to simplify code before merging.

What is YAGNI in code review and how do I check for it?▼

YAGNI, or You Ain't Gonna Need It, is a code review principle targeting unnecessary functionality. You can check for YAGNI violations and other over-engineering patterns by automating a review scan on your code diff before merging.

How do I simplify code and remove unnecessary complexity before merging?▼

To simplify code and remove unnecessary complexity before merging, run an automated review on your code diff to detect over-engineering patterns, standard library replacements, and code shrinkage opportunities.

Do I need a fat agent diff to review code for over-engineering?▼

Yes, you need a fat agent diff as input to review code for over-engineering. The tool processes this specific diff format to detect unnecessary deletions, native code, and YAGNI patterns for code simplification.

When should I run an over-engineering code review in my workflow?▼

You should run an over-engineering code review after your standard code review process and before merging. This ensures any unnecessary complexity, YAGNI violations, and code shrinkage opportunities are resolved.