Ponytail Review
Ponytail Review is an agent skill (a SKILL.md file) from DietrichGebert/ponytail. Code review focused exclusively on over-engineering. It works with Claude Code, Codex, Cursor, GitHub Copilot and OpenCode and has 156,966 GitHub stars across a repository of 3 listed skills.
github.com/DietrichGebert/ponytail/skills/ponytail-review (opens in a new tab)
- Multi-skill repo
- Plugin marketplace
- Coding
- Actively maintained
Add this skill
Claude
This repository is a Claude Code plugin marketplace. In Claude Code:
/plugin marketplace add DietrichGebert/ponytail
/plugin install ponytail@ponytailIn the Claude apps, zip the ponytail-review folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).
ChatGPT / Codex
Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:
git clone --depth 1 https://github.com/DietrichGebert/ponytail.git
cp -r ponytail/skills/ponytail-review .agents/skills/ponytail-review # repo; ~/.agents/skills for all projectsStandalone skills also load in the ChatGPT desktop app.
Cursor
Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:
git clone --depth 1 https://github.com/DietrichGebert/ponytail.git
cp -r ponytail/skills/ponytail-review .cursor/skills/ponytail-review # project; ~/.cursor/skills for all projectsSource (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)
What this skill does
Code review focused exclusively on over-engineering. Finds what to delete: reinvented standard library, unneeded dependencies, speculative abstractions, dead flexibility. One line per finding: location, what to cut, what replaces it. Use when the user says "review for over-engineering", "what can we delete", "is this over-engineered", "simplify review", or invokes /ponytail-review. Complements correctness-focused review, this one only hunts complexity. Review diffs for unnecessary complexity.
When it triggers
- used exclusively on over-engineering.
- Use when the user says "review for over-engineering", "what can we delete", "is this over-engineered", "simplify review", or invokes /ponytail-review.
- "review for over-engineering"
- "what can we delete"
- "is this over-engineered"
- "simplify review"
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3 skills are listed from this repository.
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What is the Ponytail Review skill?
Ponytail Review is an agent skill (a SKILL.md file) from DietrichGebert/ponytail. Code review focused exclusively on over-engineering. It works with Claude Code, Codex, Cursor, GitHub Copilot and OpenCode and has 156,966 GitHub stars across a repository of 3 listed skills. Its SKILL.md lives at github.com/DietrichGebert/ponytail/skills/ponytail-review.
How do I install the Ponytail Review skill?
In Claude Code, run /plugin marketplace add DietrichGebert/ponytail and then /plugin install ponytail@ponytail. For Codex or Cursor, copy the ponytail-review folder into .agents/skills/ or .cursor/skills/.
Is the Ponytail Review skill free?
Yes. The repository is open source under the MIT license.
Is Ponytail Review maintained?
The repository's most recent commit was on Oct 5, 2026. Its latest release is v4.13.0. appsgit only lists skills from repositories with a commit in the last six months.