skill-builder SKILL.md skillA

skill-builder from aiskillstore/marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add aiskillstore/marketplace/skill-builder@git:20260113.222b7de

Pins git:20260113.222b7de in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
aiskillstore/marketplace
Path
skills/0xraduan/skill-builder/SKILL.md
Versions recorded
1
Latest version
git:20260113.222b7de, committed Jan 13, 2026
Size
11,704 bytes
Repository stars
452
License
none declared

Interactive skill creation assistant that guides users through building new Agent Skills for Claude Code. Use when creating new skills, building custom capabilities, or when the user runs /new-skill command. Helps design skill structure, craft descriptions, create scripts, and organize supporting files.

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

# Skill Builder

A conversational meta-skill that helps you create new Agent Skills for Claude Code through guided interaction.

## Core Purpose

Guide users through creating well-structured, discoverable Agent Skills by:
1. Understanding the skill's purpose and use cases
2. Crafting effective descriptions for model invocation
3. Determining the right structure (instruction-based vs script-powered)
4. Creating all necessary files with best practices
5. Iteratively refining based on user feedback

## When This Skill Activates

- User runs `/new-skill` command
- User asks about creating, building, or designing a new skill
- User wants to build custom Claude Code capabilities
- User needs help with skill structure or organization

## Official Documentation

**If you need clarification on skill features, YAML fields, or best practices**, fetch the official documentation:

- **Primary reference**: https://docs.claude.com/en/docs/claude-code/skills.md

Use the WebFetch tool to get the latest information when:
- Unsure about YAML frontmatter fields
- Need clarification on allowed-tools behavior
- Want to verify skill structure requirements
- Need examples from official docs
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add aiskillstore/marketplace/skill-builder@sha256:688ba1fdd3b85f8b

The line at the top of this page pins the label git:20260113.222b7de, 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_kotnqjfhnz35fcbf.svg)](https://markdownregistry.com/a/art_kotnqjfhnz35fcbf)

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

Versions

The registry has recorded 1 version of this file, committed on Jan 13, 2026.

versioncommittedcommitsizeaudit
git:20260113.222b7de latest2026-01-13 222b7de 11,704 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 (11704 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

aiskillstore/marketplace · 452 stars · license none declared · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_kotnqjfhnz35fcbf
GET https://markdownregistry.com/api/v1/resolve?ref=aiskillstore/marketplace/skill-builder
GET https://markdownregistry.com/api/v1/blob/688ba1fdd3b85f8b7030277ac2f0b28053572dbb4fa1c096c304ebeb72267b29

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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