maintaining-a-marketplace SKILL.md skillA

maintaining-a-marketplace from ed3dai/ed3d-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add ed3dai/ed3d-plugins/maintaining-a-marketplace@git:20260216.3c056d6

Pins git:20260216.3c056d6 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
ed3dai/ed3d-plugins
Path
plugins/ed3d-extending-claude/skills/maintaining-a-marketplace/SKILL.md
Versions recorded
1
Latest version
git:20260216.3c056d6, committed Feb 16, 2026
Size
7,703 bytes
Repository stars
253
License
none declared

Use when creating, releasing, or maintaining a Claude Code Plugin Marketplace - covers marketplace.json schema, version management, release checklists, changelog conventions, and validation to prevent sync drift between plugin.json and marketplace.json.

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

# Maintaining a Marketplace

## Overview

A Claude Code Plugin Marketplace is a git repository containing `.claude-plugin/marketplace.json` that catalogs plugins for discovery and installation. The primary maintenance challenge is **sync drift** — keeping versions, descriptions, and metadata consistent across `plugin.json`, `marketplace.json`, and `CHANGELOG.md`.

## When to Use

- Setting up a new marketplace from scratch
- Releasing a new plugin version
- Adding a plugin to an existing marketplace
- Auditing marketplace consistency
- Troubleshooting plugin installation failures

## Marketplace Structure

```
my-marketplace/
  .claude-plugin/
    marketplace.json       # Required: marketplace catalog
  plugins/
    plugin-a/
      .claude-plugin/
        plugin.json        # Required: plugin manifest
      skills/
      commands/
      agents/
    plugin-b/
      .claude-plugin/
        plugin.json
```

## marketplace.json Schema

```json
{
  "$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
  "name": "my-marketplace",
  "owner": {
    "name": "Your Name",
    "email": "you@example.com"
  },
  "metadata": {
    "description": "Brief marketplace description",
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add ed3dai/ed3d-plugins/maintaining-a-marketplace@sha256:c995b48a6cba1d67

The line at the top of this page pins the label git:20260216.3c056d6, 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_uonkbe2illypjtu5.svg)](https://markdownregistry.com/a/art_uonkbe2illypjtu5)

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

Versions

The registry has recorded 1 version of this file, committed on Feb 16, 2026.

versioncommittedcommitsizeaudit
git:20260216.3c056d6 latest2026-02-16 3c056d6 7,703 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 (7703 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

ed3dai/ed3d-plugins · 253 stars · license none declared · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uonkbe2illypjtu5
GET https://markdownregistry.com/api/v1/resolve?ref=ed3dai/ed3d-plugins/maintaining-a-marketplace
GET https://markdownregistry.com/api/v1/blob/c995b48a6cba1d67f15a6d33b31b40c4fc958506f05cbafa5cd2705c365c8524

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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