writing-skills SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

writing-skills from autovant/superpowers is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add autovant/superpowers/writing-skills@git:20260206.a72e416

Pins git:20260206.a72e416 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
autovant/superpowers
Path
skills/writing-skills/SKILL.md
Versions recorded
5
Latest version
git:20260206.a72e416, committed Feb 6, 2026
First version recorded
Dec 18, 2025
Size
22,465 bytes
Repository stars
10
License
MIT

Use when creating new skills, editing existing skills, or verifying skills work before deployment.

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

# Writing Skills

## Overview

**Writing skills IS Test-Driven Development applied to process documentation.**

**Personal skills live in agent-specific directories (`~/.claude/skills` for Claude Code, `~/.agents/skills/` for Codex)** 

You write test cases (pressure scenarios with subagents), watch them fail (baseline behavior), write the skill (documentation), watch tests pass (agents comply), and refactor (close loopholes).

**Core principle:** If you didn't watch an agent fail without the skill, you don't know if the skill teaches the right thing.

**REQUIRED BACKGROUND:** You MUST understand superpowers:test-driven-development before using this skill. That skill defines the fundamental RED-GREEN-REFACTOR cycle. This skill adapts TDD to documentation.

**Official guidance:** For Anthropic's official skill authoring best practices, see anthropic-best-practices.md. This document provides additional patterns and guidelines that complement the TDD-focused approach in this skill.

## What is a Skill?

A **skill** is a reference guide for proven techniques, patterns, or tools. Skills help future Claude instances find and apply effective approaches.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add autovant/superpowers/writing-skills@sha256:d83a09d6a1c6976f

The line at the top of this page pins the label git:20260206.a72e416, 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_tfqdw2ch52no35zy.svg)](https://markdownregistry.com/a/art_tfqdw2ch52no35zy)

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

Versions

The registry has recorded 5 versions of this file, between Dec 18, 2025 and Feb 6, 2026, about one every 13 days.

versioncommittedcommitsizeaudit
git:20260206.a72e416 latest2026-02-06 a72e416 22,465 BA view · diff
git:20251224.66a2dbd2025-12-24 66a2dbd 22,463 BA view · diff
git:20251218.030a2222025-12-18 030a222 22,341 BA view · diff
git:20251218.2a19be02025-12-18 2a19be0 22,474 BA view · diff
git:20251218.28ba0202025-12-18 28ba020 21,073 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 (22465 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

autovant/superpowers · 10 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_tfqdw2ch52no35zy
GET https://markdownregistry.com/api/v1/resolve?ref=autovant/superpowers/writing-skills
GET https://markdownregistry.com/api/v1/blob/d83a09d6a1c6976f6cc2f40addeae653a4a6eb5903097ebc365d90242e00e379

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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Every file in autovant/superpowers

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