# ponytail-gain

> Claude/Codex skill by [@dietrichgebert](https://omgskills.com/library/dietrichgebert/index.md) · 167k stars · 41k installs · Updated 2026-10-18

Show ponytail's measured savings (code, cost, speed) from the benchmark. One-shot display. Use for /ponytail-gain, "what does ponytail save", "ponytail impact".

Tags: agent-skills, ai-agents, claude, claude-code, claude-code-plugin, cursor-rules, developer-tools, llm, prompt-engineering, yagni

## Install

```sh
git clone https://github.com/DietrichGebert/ponytail /tmp/ponytail && ln -s /tmp/ponytail/skills/ponytail-gain ~/.claude/skills/ponytail-gain
```

## From README

Ponytail Gain Display this scoreboard when invoked. One-shot: do NOT change mode, write flag files, or persist anything. The figures are the published agentic benchmark of Ponytail 5: headless Claude Code (Opus 5.5, default effort) on 39 tasks (feature tickets in a real FastAPI + React repo, bug fixes, security and privacy cases, small apps), 5 runs each, against the same agent without the skill. 18 of the tasks have hidden checks for correctness and safety. Each figure is the geometric mean of the per-task medians. They are measured, not computed from the current repo. Source: benchmarks/results/2026-10-07-agentic.md and the README. Scoreboard Render plain ASCII bars. The bar length shows ponytail as a share of the no-skill baseline; the label carries the exact figure: Honesty boundary These are benchmark averages, not this repo.

## Links

- HTML page: https://omgskills.com/skills/dietrichgebert/ponytail/ponytail-gain/
- GitHub: https://github.com/DietrichGebert/ponytail
- Author: [@dietrichgebert](https://omgskills.com/library/dietrichgebert/index.md)

## More from this repo

- [ponytail](https://omgskills.com/skills/dietrichgebert/ponytail/ponytail/index.md) — Lazy senior dev mode: the smallest change that fully solves the task, and a reply a busy human understands in one read.
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