What is ponytail-gain?

A one-time scoreboard showing ponytail’s measured effect using benchmark median results, such as changes in code, cost, and speed.

Use it to display ponytail’s benchmark-based gains when asked for its impact or savings.

It provides a compact summary of the approach’s reported impact instead of a repository-specific measurement.

ponytail-gain — Skill for Claude Code and Codex by dmae97/omk

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.

Any agent

npx skills add dmae97/omk --skill ponytail-gain

Clone the repo

git clone --depth 1 https://github.com/dmae97/omk

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/dmae97/omk/ponytail-gain/github.svg)](https://agentmods.dev/skills/dmae97/omk/ponytail-gain)

Your own site

<a href="https://agentmods.dev/skills/dmae97/omk/ponytail-gain"><img src="https://agentmods.dev/badge/skills/dmae97/omk/ponytail-gain/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dmae97/omk/ponytail-gain"><img src="https://agentmods.dev/badge/skills/dmae97/omk/ponytail-gain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 83 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,113 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00083	$0.01113
Opus 5.5	$0.00033	$0.00445
Sonnet 5.5	$0.00017	$0.00223
Haiku 4.5	$0.00008	$0.00111

Measured 1mo ago against content hash e3073cef2a4f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ponytail-gain 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 1mo ago.

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.

.omk/skills/ponytail-gain/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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.

OMK Vendoring Notice

This skill is vendored from the upstream Ponytail project (npm: @dietrichgebert/ponytail) as a pure markdown OMK skill, copied unmodified in substance from skills/ponytail-gain/SKILL.md at pinned commit 40e50d9 (full SHA 40e50d9e03242aa5dd53ac771950f9127362b25f).

License: MIT. Copyright (c) 2026 DietrichGebert. Full text: ../ponytail/LICENSE (this repo's vendored copy, kept alongside the primary ponytail skill) and the upstream LICENSE file at the pinned commit.
Scope: only the six skills/*/SKILL.md files were vendored. Upstream's Node/Python extension code (pi-extension/, hooks/*.js, ponytail-mcp/), the Hermes Agent plugin (__init__.py, plugin.yaml), command/hook manifests, and marketplace/CI tooling are not included in OMK. Nothing in this skill executes code; it is inert markdown loaded into the system prompt. Note in particular: the benchmark medians in this scoreboard were measured by the upstream project's own benchmarks/ harness, which is not vendored here and was not re-run by this integration.
Invocation in OMK: use /skill:ponytail-gain or !skill:ponytail-gain (shorthand !ponytail-gain also works when unambiguous), per packages/coding-agent/docs/skills.md. The bare /ponytail-gain slash form referenced above describes the upstream multi-host package's own command surface (Claude Code, Codex, OpenCode, etc.) and is not an OMK command.
Updates: this is a static vendored copy, not a live package install. To pick up upstream changes, re-vendor against a newer pinned commit; there is no auto-update mechanism here.

Read the full file on GitHub · 85 lines

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.

1mo ago First seen · 85 lines · 83 tokens per session scan A e3073cef2a4f

Subscribe to this mod's changes

ponytail-gain is a skill published in the GitHub repository dmae97/omk (148 stars, last pushed today), licensed MIT. It adds 83 tokens to every session and 1,113 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Analytics and metrics Multi-Agent Productivity TypeScript cli coding-agent developer-tools mcp

cool-workflow

Use when the user asks for Cool Workflow, CW, agent workflow control-plane, TypeScript workflow orchestration, phased multi-agent work, background workflow tasks, reusable workflow apps, or auditable agent run state.

coo1white/cool-workflow · 46 tokens

batch

Execute batch operations on multiple files in parallel. Automatically discovers files, splits into chunks, and processes with parallel worker agents. Use /batch followed by operation and file pattern. For many independent single-turn transforms (translate/rewrite/extract each file into a new file) that can wait…

QwenLM/qwen-code · 102 tokens

ponytail-gain