Ponytail

by DietrichGebert 92k MIT Updated Jul 15, 2026
Integrations Claude CodeCursor
Ponytail skill by DietrichGebert
Social preview for DietrichGebert/ponytail

Ponytail is an open-source integrations skill for Claude Code and Cursor, published by DietrichGebert. Its author describes it as: “Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.”. The project has 92k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add DietrichGebert/ponytail`.

Installation

Add Ponytail to your agent with:

/plugin marketplace add DietrichGebert/ponytail

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

When to use it

Reach for Ponytail when you want integrations help from Claude Code without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

  • Clear MIT license — safe to read and adapt
  • Ships in DietrichGebert/ponytail, an established project with 92,065 GitHub stars
  • Declares compatibility with Claude Code, Cursor
  • Actively maintained (recent commits)

Topics

agent-skillsai-agentsclaudeclaude-codeclaude-code-plugincursor-rulesdeveloper-toolsllmprompt-engineeringyagni

Frequently asked questions

What does Ponytail do?
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
How do I install Ponytail?
Run /plugin marketplace add DietrichGebert/ponytail in your agent, then reload your skills. Review the source at https://github.com/DietrichGebert/ponytail before installing.
Is Ponytail free to use?
Yes. Ponytail is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
Which agents does Ponytail work with?
Ponytail declares compatibility with Claude Code and Cursor. Agent Skills use a portable SKILL.md format, so other compatible clients can usually load it too.
Where does Ponytail come from?
Ponytail ships inside DietrichGebert/ponytail, a repository that contains 6 catalogued skills in total. The repository's 92,065 GitHub stars apply to that whole collection, not to this skill on its own.

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Harvest every `ponytail:` comment in the codebase into a debt ledger, so the deliberate shortcuts and deferrals ponytail leaves behind get tracked instead of rotting into "later means never". Use when the user says "ponytail debt", "/ponytail-debt", "what did ponytail defer", "list the shortcuts", "ponytail ledger", or "what did we mark to do later". One-shot report, changes nothing.

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Show ponytail's measured impact as a compact scoreboard: less code, less cost, more speed, from the benchmark medians. One-shot display, not a persistent mode, and not a per-repo number. Trigger: /ponytail-gain, "ponytail gain", "what does ponytail save", "show ponytail impact", "ponytail scoreboard".

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Quick-reference card for all ponytail modes, skills, and commands. One-shot display, not a persistent mode. Trigger: /ponytail-help, "ponytail help", "what ponytail commands", "how do I use ponytail".

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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.

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