command-dev SKILL.md skillA

command-dev from andisab/swe-marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add andisab/swe-marketplace/command-dev@git:20260326.c644335

Pins git:20260326.c644335 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
andisab/swe-marketplace
Path
plugins/context-engineering/skills/command-dev/SKILL.md
Versions recorded
1
Latest version
git:20260326.c644335, committed Mar 26, 2026
Size
14,235 bytes
Repository stars
21
License
MIT

Use this skill when creating or refining custom Claude Code slash commands. Slash commands are user-invoked reusable prompts that can accept arguments, reference files, and execute bash operations. Helps design command syntax, argument handling, file references, bash execution, and frontmatter configuration. Automatically invoked when user requests "create a command", "make a slash command", "add a /command", or mentions custom command development.

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

# Command Dev Skill

This skill helps create production-ready custom slash commands following Anthropic's official specifications.

## What is a Slash Command?

A **slash command** is a user-invoked reusable prompt stored as a Markdown file. Unlike skills (model-invoked) or agents (complex AI assistants), slash commands are:

- **User-triggered**: Explicitly invoked with `/command-name`
- **Template-based**: Expand to prompts with placeholders
- **Lightweight**: Simple Markdown files with optional frontmatter
- **Quick access**: Fast way to reuse common instructions

## Commands vs Skills vs Agents

| Feature | Command | Skill | Agent |
|---------|---------|-------|-------|
| **Invocation** | User (`/name`) | Model (automatic) | User or Task tool |
| **Complexity** | Simple prompt template | Capability with logic | Full AI assistant |
| **Arguments** | Yes ($1, $2, $ARGUMENTS) | N/A | N/A |
| **File access** | Yes (@file) | Via tools | Via tools |
| **Bash exec** | Yes (!command) | Via tools | Via tools |
| **Use case** | Quick prompts, workflows | Autonomous features | Domain expertise |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add andisab/swe-marketplace/command-dev@sha256:360fb5eefebd9f90

The line at the top of this page pins the label git:20260326.c644335, 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_grea346idzb3ltsa.svg)](https://markdownregistry.com/a/art_grea346idzb3ltsa)

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

Versions

The registry has recorded 1 version of this file, committed on Mar 26, 2026.

versioncommittedcommitsizeaudit
git:20260326.c644335 latest2026-03-26 c644335 14,235 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 (14235 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

andisab/swe-marketplace · 21 stars · license MIT · pushed 2026-10-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_grea346idzb3ltsa
GET https://markdownregistry.com/api/v1/resolve?ref=andisab/swe-marketplace/command-dev
GET https://markdownregistry.com/api/v1/blob/360fb5eefebd9f9046372aa0397bdf7636443a515bc75e27b5af001c449f880e

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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