dietrichgebert/ponytail · skills/ponytail/SKILL.md

ponytail skillA

ponytail is agent-read markdown (skill) from dietrichgebert/ponytail: Forces the laziest solution that actually works, simplest, shortest, most minimal. Channels a senior dev who has seen everything: question whether the task needs to exist at all (YAGNI), reach for the standard library before custom code, native platform features before dependencies, one line before fifty. Supports intensity levels: lite, full (default), ultra. Use on ANY coding task: writing, adding, refactoring, fixing, reviewing, or designing code, and choosing libraries or dependencies. Also .

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add dietrichgebert/ponytail/ponytail@git:20260710.b6c0448
Exact content
mdr add dietrichgebert/ponytail/ponytail@sha256:1316a2f3f95741d2

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_prfayrbiksvwq5id.svg)](https://markdownregistry.com/a/art_prfayrbiksvwq5id)

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Versions

versioncommittedcommitsizeaudit
git:20260710.b6c0448 latest2026-07-10 b6c0448 6,637 BA view · diff
git:20260629.0e3fd0c2026-06-29 0e3fd0c 6,707 BA view · diff
git:20260622.dedc97c2026-06-22 dedc97c 6,482 BA view · diff
git:20260619.cf9cbd52026-06-19 cf9cbd5 5,199 BA view · diff
git:20260618.fe963ca2026-06-18 fe963ca 5,770 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (6637 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

dietrichgebert/ponytail · 141,490 stars · license MIT · pushed 2026-09-14 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_prfayrbiksvwq5id
GET https://markdownregistry.com/api/v1/resolve?ref=dietrichgebert/ponytail/ponytail
GET https://markdownregistry.com/api/v1/blob/1316a2f3f95741d2300b116fe0c2d81ce4a9568656ed0a62643f54aaf09957f2

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.