SKILL DETAIL
ponytail-gain
dietrichgebert/ponytail/ponytail-gain
The ponytail-gain skill displays ponytail's measured impact as a compact scoreboard, showing less code, less cost, and more speed, based on benchmark medians. It is a one-shot display and does not change mode or persist anything. The scoreboard presents benchmark medians from five everyday tasks (email validator, debounce, CSV sum, countdown timer, rate limiter) across three models (Haiku, Sonnet, Opus). It shows comparisons for lines of code, cost, and speed, and points to /ponytail-debt and /ponytail-audit for more repo-specific information. Note that these figures are benchmark medians, not per-repo savings.
Installation
npx skills add https://github.com/dietrichgebert/ponytail --skill ponytail-gain
Skill-Dateien
SKILL.md
Zuletzt synchronisiert · 29.08.2026
SKILL.md›
---
name: ponytail-gain
description: >
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".
---
# Ponytail Gain
Display this scoreboard when invoked. One-shot: do NOT change mode, write flag
files, or persist anything.
The figures are the published benchmark medians (5 everyday tasks: email
validator, debounce, CSV sum, countdown timer, rate limiter; three models:
Haiku, Sonnet, Opus). They are measured, not computed from the current repo.
Source: `benchmarks/` and the README.
## Scoreboard
Render plain ASCII bars. The bar length shows the measured range; the label
carries the exact figure:
```
ponytail gain benchmark median · 5 tasks · 3 models
Lines of code no-skill ████████████████████ 100%
ponytail ██▌················· 6–20% ▼ 80–94%
Cost no-skill ████████████████████ 100%
ponytail █████▌·············· 23–53% ▼ 47–77%
Speed ponytail ▸ 3–6× faster
This repo: /ponytail-debt (shortcuts you deferred)
/ponytail-audit (what's still cuttable)
```
## Honesty boundary
These are benchmark medians, not this repo. NEVER print a per-repo savings
number ("you saved X lines/tokens here"): the unbuilt version was never
written, so there is no real baseline to subtract from in a live repo. The
only real per-repo figures come from `/ponytail-debt` (a counted ledger), and
this card points there instead of inventing one.
## Boundaries
One-shot display. Edits nothing, changes no mode.
"stop ponytail" or "normal mode": revert.