Ponytail

by Dietrich Gebert

A skill that makes your coding agent write only what is needed: less code, fewer tokens, without cutting corners on security.

163.8 k stars GitHub MIT FreeOpen source

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What it does

Per its author (39 tasks in Claude Code): −53% code, −45% output tokens, −26% cost
Commands to review (/ponytail-review) and audit (/ponytail-audit) your code
Works with Claude Code, Codex, Cursor, Gemini CLI and about twenty agents

! The figures (−53% code, −45% output tokens, −26% cost) come from the author's benchmark: 39 tasks in Claude Code, with and without the skill. They are not measured by PixDig and depend on your tasks. The skill adds its own prompt to every session. Install it only from DietrichGebert/ponytail (GitHub) or @dietrichgebert/ponytail (npm): the project warns about copies.

Install it

Requirements: Claude Code, Codex, Cursor, Gemini CLI or another compatible agent.

Claude Code: add the project marketplace

/plugin marketplace add DietrichGebert/ponytail

Claude Code: install the plugin

/plugin install ponytail@ponytail

Other agents: copy the AGENTS.md file into your project

https://github.com/DietrichGebert/ponytail/blob/main/AGENTS.md

The prompt for your agent

Paste it into your coding agent: it checks the requirements and installs it for you.

Claude CodeCodexCursorGemini CLIopencode

Prompt

Install Ponytail (https://github.com/DietrichGebert/ponytail) on my machine.
1. Check the requirements: Claude Code, Codex, Cursor, Gemini CLI or another compatible agent. If anything is missing, tell me before installing anything.
2. Follow the official method:
- Claude Code: add the project marketplace: /plugin marketplace add DietrichGebert/ponytail
- Claude Code: install the plugin: /plugin install ponytail@ponytail
- see https://github.com/DietrichGebert/ponytail/blob/main/AGENTS.md
3. Check that it works, then explain how to launch it and where to start.

Always review what your agent is about to run, especially install commands.