ponytail

ponytail is a plugin for Claude Code from porchetthub/-https-github.com-DietrichGebert-ponytail. Its manifest loads nothing; the 6 skills it bundles cost 199 tokens per session together, scanned A, a copy of ponytail, MIT.

A coding mode that favors the shortest working solution, standard-library tools, and no extra abstractions unless they are needed.

In plain words
What is it for?
Guiding implementation decisions toward YAGNI— postponing features and structures until there is a real need for them.
Why use it?
It reduces unnecessary code and design complexity when a simpler implementation is enough.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add porchetthub/-https-github.com-DietrichGebert-ponytail
agentmods
npx agentmods add plugins/porchetthub/-https-github.com-dietrichgebert-ponytail/https-github.com-dietrichgebert-ponytail
Clone the repo
git clone --depth 1 https://github.com/porchetthub/-https-github.com-DietrichGebert-ponytail

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ponytail

README.md
[![agentmods](https://agentmods.dev/badge/plugins/porchetthub/-https-github.com-dietrichgebert-ponytail/https-github.com-dietrichgebert-ponytail.svg)](https://agentmods.dev/plugins/porchetthub/-https-github.com-dietrichgebert-ponytail/https-github.com-dietrichgebert-ponytail)
Your own site
<a href="https://agentmods.dev/plugins/porchetthub/-https-github.com-dietrichgebert-ponytail/https-github.com-dietrichgebert-ponytail"><img src="https://agentmods.dev/badge/plugins/porchetthub/-https-github.com-dietrichgebert-ponytail/https-github.com-dietrichgebert-ponytail.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 6 skills cost 199 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

ponytail scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to ponytail — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "ponytail",
  "version": "4.8.4",
  "description": "Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.",
  "author": {
    "name": "Dietrich Gebert",
    "url": "https://github.com/DietrichGebert"
  },
  "hooks": "./hooks/claude-codex-hooks.json"
}
Contents

What it installs

The manifest is a name and a version. 6 skills travel with it, and installing the plugin installs all of them — 199 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside plugin.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 11 lines scan A 2d6a8bdc583d

Subscribe to this mod's changes

ponytail is a plugin published in the GitHub repository porchetthub/-https-github.com-DietrichGebert-ponytail (2 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. It is 100% identical to ponytail, differing in 2 lines, and is treated as a copy.