feat: initial plugin-dev marketplace

- Plugin-dev toolkit with 7 skills, 3 agents, 1 command
- Marketplace structure with plugin in plugins/plugin-dev/
- CI/CD workflows for linting, validation, and PR review
- Contributing guidelines and documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: sjnims

.claude-plugin/marketplace.json

@@ -0,0 +1,28 @@
+{
+  "name": "plugin-dev-marketplace",
+  "owner": {
+    "name": "Steve Nims",
+    "url": "https://github.com/sjnims"
+  },
+  "metadata": {
+    "description": "Unofficial plugin-dev plugin marketplace for plugin-dev Claude Code plugin - the plugin itself was initially created by Daisy Hollman at Anthropic.",
+    "version": "0.1.0"
+  },
+  "plugins": [
+    {
+      "name": "plugin-dev",
+      "description": "Comprehensive toolkit for developing Claude Code plugins. Includes 7 expert skills covering hooks, MCP integration, commands, agents, and best practices. AI-assisted plugin creation and validation.",
+      "version": "0.1.0",
+      "author": {
+        "name": "Daisy Hollman",
+        "url": "https://github.com/anthropics/claude-code/",
+        "email": "daisy@anthropic.com"
+      },
+      "homepage": "https://github.com/anthropics/claude-code/",
+      "tags": [
+        "development"
+      ],
+      "source": "./plugins/plugin-dev"
+    }
+  ]
+}

.github/CODEOWNERS

@@ -0,0 +1,25 @@
+# CODEOWNERS - Defines code ownership for automatic reviewer assignment
+#
+# Note: The wildcard rule must be FIRST (GitHub uses last-match-wins).
+# Specific rules below are currently same owner but documented separately
+# to enable per-area ownership when the team grows.
+
+# Default owner for everything
+* @sjnims
+
+# --- Specific ownership rules (ready for team scaling) ---
+
+# GitHub configuration (workflows, templates, dependabot)
+/.github/ @sjnims
+
+# Plugin core
+/plugins/plugin-dev/ @sjnims
+
+# Critical documentation
+/README.md @sjnims
+/CLAUDE.md @sjnims
+/SECURITY.md @sjnims
+
+# Manifests (version management)
+/plugins/plugin-dev/.claude-plugin/plugin.json @sjnims
+/.claude-plugin/marketplace.json @sjnims

.github/DISCUSSION_TEMPLATE/ideas.yml

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+title: "[Idea]: "
+labels: ["enhancement", "idea"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for sharing your idea! Help us understand what problem you're solving and your proposed solution.
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem or Need
+      description: What problem does this idea solve? What need does it address?
+      placeholder: "I'm frustrated when... I need a way to..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed Idea
+      description: Describe your idea clearly
+      placeholder: I think it would be great if...
+    validations:
+      required: true
+
+  - type: textarea
+    id: benefit
+    attributes:
+      label: Expected Benefit
+      description: How would this improve the plugin?
+      placeholder: This would help users by...
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives Considered
+      description: Have you thought of other ways to achieve this?
+      placeholder: Instead of this, we could also...
+    validations:
+      required: false

.github/DISCUSSION_TEMPLATE/q-a.yml

@@ -0,0 +1,51 @@
+title: "[Question]: "
+labels: ["question"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Have a question about using the plugin? We're here to help!
+
+        **Before asking**: Please check the [README](https://github.com/sjnims/plugin-dev/blob/main/README.md) and existing discussions first.
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Pre-submission checklist
+      options:
+        - label: I've checked the README.md
+          required: true
+        - label: I've searched existing discussions for similar questions
+          required: true
+
+  - type: dropdown
+    id: category
+    attributes:
+      label: Question Category
+      options:
+        - Installation and setup
+        - Using commands
+        - Understanding the workflow
+        - Troubleshooting
+        - Contributing
+        - Other
+    validations:
+      required: true
+
+  - type: textarea
+    id: question
+    attributes:
+      label: Your Question
+      description: What would you like to know?
+      placeholder: How do I...? Why does...? Can I...?
+    validations:
+      required: true
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional Context
+      description: Any relevant details about your setup or use case
+      placeholder: I'm trying to...
+    validations:
+      required: false

.github/DISCUSSION_TEMPLATE/show-and-tell.yml

@@ -0,0 +1,34 @@
+title: "[Showcase]: "
+labels: ["showcase"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Share how you're using plugin-dev! We'd love to hear about your projects and learnings.
+
+  - type: textarea
+    id: showcase
+    attributes:
+      label: What are you sharing?
+      description: Describe what you built or accomplished
+      placeholder: I used plugin-dev to...
+    validations:
+      required: true
+
+  - type: textarea
+    id: learnings
+    attributes:
+      label: Key Learnings
+      description: What did you learn that might help others? This is the heart of Show and Tell!
+      placeholder: Tips I'd share...
+    validations:
+      required: true
+
+  - type: textarea
+    id: links
+    attributes:
+      label: Links or Resources
+      description: Any relevant links to your project, blog post, or resources
+      placeholder: "GitHub repo: ... Blog post: ..."
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,81 @@
+name: Bug Report
+description: Report a bug or issue with the plugin-dev plugin
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug! Please fill out the information below to help us diagnose and fix the issue.
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Bug Description
+      description: A clear and concise description of what the bug is
+      placeholder: Tell us what happened
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to Reproduce
+      description: Steps to reproduce the behavior
+      placeholder: |
+        1. Load plugin with `cc --plugin-dir plugins/plugin-dev`
+        2. Run command `/re:init`
+        3. See error...
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected Behavior
+      description: What you expected to happen
+      placeholder: Describe what should have happened
+    validations:
+      required: true
+
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual Behavior
+      description: What actually happened
+      placeholder: Describe what actually happened
+    validations:
+      required: true
+
+  - type: input
+    id: command
+    attributes:
+      label: Command Used
+      description: Which /plugin-dev:* command were you using?
+      placeholder: "/plugin-dev:create-plugin"
+
+  - type: textarea
+    id: environment
+    attributes:
+      label: Environment
+      description: Your environment details
+      value: |
+        - OS: [e.g., macOS 14.0, Ubuntu 22.04]
+        - Claude Code Version: [e.g., 0.5.0]
+        - Plugin Version: [e.g., 0.1.0]
+        - GitHub CLI Version: [run `gh --version`]
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Logs or Error Messages
+      description: Any relevant logs or error messages
+      render: shell
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional Context
+      description: Add any other context about the problem here

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: GitHub Discussions
+    url: https://github.com/sjnims/plugin-dev/discussions
+    about: Ask questions and discuss ideas with the community
+  - name: Claude Code Documentation
+    url: https://claude.ai/code
+    about: Official Claude Code documentation and guides

.github/ISSUE_TEMPLATE/documentation.yml

@@ -0,0 +1,67 @@
+name: Documentation Improvement
+description: Suggest improvements to documentation (README, CLAUDE.md, or plugin docs)
+title: "[Docs]: "
+labels: ["documentation"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for helping improve our documentation! Clear documentation helps everyone use the plugin more effectively.
+
+  - type: dropdown
+    id: doc-type
+    attributes:
+      label: Which documentation needs improvement?
+      options:
+        - README.md
+        - CLAUDE.md
+        - Command documentation
+        - Skill documentation
+        - Agent documentation
+        - Code of Conduct
+        - Contributing guidelines
+        - Other
+    validations:
+      required: true
+
+  - type: input
+    id: location
+    attributes:
+      label: Specific Location
+      description: File path or section name
+      placeholder: "e.g., README.md - Installation section, plugins/plugin-dev/commands/create-plugin.md"
+
+  - type: textarea
+    id: issue
+    attributes:
+      label: What's unclear or missing?
+      description: Describe what's confusing, incorrect, or missing
+      placeholder: The documentation doesn't explain...
+    validations:
+      required: true
+
+  - type: textarea
+    id: suggestion
+    attributes:
+      label: Suggested Improvement
+      description: How would you improve it? (Feel free to include proposed wording)
+      placeholder: It would be clearer if...
+
+  - type: checkboxes
+    id: issue-type
+    attributes:
+      label: Type of issue
+      options:
+        - label: Incorrect information
+        - label: Missing information
+        - label: Unclear explanation
+        - label: Broken link
+        - label: Typo or grammar
+        - label: Outdated content
+        - label: Other
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional Context
+      description: Any other context or screenshots