author-extension SKILL.md skillA

author-extension from everruns/yolop is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add everruns/yolop/author-extension@git:20260724.8351b7d

Pins git:20260724.8351b7d in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
everruns/yolop
Path
.agents/skills/author-extension/SKILL.md
Versions recorded
5
Latest version
git:20260724.8351b7d, committed Jul 24, 2026
First version recorded
Jul 18, 2026
Size
5,895 bytes
Repository stars
18
License
MIT

Write a new yolop extension end-to-end — scaffold, implement, install, verify, and enable it — when the user asks yolop to add a capability, integrate with something, or "build an extension" for a need that no installed extension covers.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Author an extension

Goal: turn a capability request ("integrate with X", "block Y", "add a tool
that Z") into a working, installed yolop extension — built by yolop itself.

An extension is a capability package served over YEP (the yolop extension
protocol): a `plugin.json` manifest plus a capability server that speaks
newline-delimited JSON-RPC over stdio. See [`knowledge/specs/extensions.md`](../../../knowledge/specs/extensions.md).

## When to use

Use this when the user wants a *new, persistent* capability and no installed
extension provides it — something worth keeping across sessions, not a one-off
shell command. Signals: "make yourself a tool for…", "add an extension that…",
"integrate yolop with…", "from now on, block/allow…".

If an installed extension already covers it, use that instead
(`list_extensions`). If the need is a single throwaway action, just do it — do
not author an extension for it.

## What an extension can contribute

A manifest must contribute at least one facet; declare only what you need.
[`extensions.md`](../../../knowledge/specs/extensions.md) defines each one — this is what to pass the
scaffold and what it generates.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add everruns/yolop/author-extension@sha256:0923323d1c11a3d7

The line at the top of this page pins the label git:20260724.8351b7d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_6poi7geyq6ibvtxt.svg)](https://markdownregistry.com/a/art_6poi7geyq6ibvtxt)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jul 18, 2026 and Jul 24, 2026, about one every day.

versioncommittedcommitsizeaudit
git:20260724.8351b7d latest2026-07-24 8351b7d 5,895 BA view · diff
git:20260724.6548f642026-07-24 6548f64 6,534 BA view · diff
git:20260719.32cb2902026-07-19 32cb290 6,514 BA view · diff
git:20260718.736e1b02026-07-18 736e1b0 6,285 BA view · diff
git:20260718.89896fd2026-07-18 89896fd 5,719 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the 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 (5895 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

everruns/yolop · 18 stars · license MIT · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_6poi7geyq6ibvtxt
GET https://markdownregistry.com/api/v1/resolve?ref=everruns/yolop/author-extension
GET https://markdownregistry.com/api/v1/blob/0923323d1c11a3d7244c624bf05efe1ee80245d72df3fbc05190f1be662772e9

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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