docs: add auto-release documentation and changelog

- Update README with auto-release workflow section
- Update project structure to include new files
- Create CHANGELOG.md with Keep a Changelog format

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

Author: yepzdk

CHANGELOG.md

@@ -0,0 +1,41 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+- Auto-release workflow for MCP dependency updates
+  - Weekly scheduled check for new MCP releases (Mondays 8:30 UTC)
+  - Automated version bump and release creation when updates detected
+  - Version tracking in `.claude-plugin/mcp-versions.json`
+
+## [0.2.0] - 2025-01-24
+
+### Added
+
+- User-invocable skills for common workflows
+  - `/itkdev-commit` - Create commits following ITK Dev guidelines
+  - `/itkdev-pr` - Create pull requests with proper formatting
+  - `/itkdev-changelog` - Update changelog entries
+
+### Changed
+
+- Renamed skills to use `itkdev` prefix for consistency
+
+## [0.1.0] - 2025-01-23
+
+### Added
+
+- Initial plugin release
+- Browser feedback MCP server integration
+- GitHub guidelines skill for ITK Dev team workflows
+- Plugin marketplace structure
+
+[Unreleased]: https://github.com/itk-dev/itkdev-claude-plugins/compare/v0.2.0...HEAD
+[0.2.0]: https://github.com/itk-dev/itkdev-claude-plugins/compare/v0.1.0...v0.2.0
+[0.1.0]: https://github.com/itk-dev/itkdev-claude-plugins/releases/tag/v0.1.0

README.md

@@ -8,7 +8,11 @@ A Claude Code plugin marketplace for ITK Dev team tools and MCP servers.
 itkdev-claude-plugins/
 ├── .claude-plugin/
 │   ├── plugin.json            # Plugin manifest
-│   └── marketplace.json       # Marketplace catalog
+│   ├── marketplace.json       # Marketplace catalog
+│   └── mcp-versions.json      # Tracked MCP dependency versions
+├── .github/workflows/         # GitHub Actions workflows
+│   ├── check-mcp-updates.yml  # Weekly MCP update checker
+│   └── release.yml            # Automated release workflow
 ├── .mcp.json                   # MCP server configurations
 ├── commands/                   # Slash commands (Markdown files)
 │   └── example.md
@@ -45,6 +49,29 @@ GitHub workflow guidelines for the ITK Dev team. Automatically activates when wo
 - Changelog updates (Keep a Changelog format)
 - PR requirements and templates
 
+## Auto-Release Workflow
+
+This plugin automatically releases new versions when MCP server dependencies publish updates.
+
+### How it works
+
+1. **Weekly Check**: A GitHub Actions workflow runs every Monday at 8:30 UTC
+2. **Version Comparison**: Compares latest MCP releases with tracked versions in `.claude-plugin/mcp-versions.json`
+3. **Automated Release**: If updates are detected, a new patch version is released automatically
+
+### Tracked Dependencies
+
+| MCP Server | Repository |
+|------------|------------|
+| browser-feedback | [mcp-claude-code-browser-feedback](https://github.com/itk-dev/mcp-claude-code-browser-feedback) |
+| docker | [mcp-itkdev-docker](https://github.com/itk-dev/mcp-itkdev-docker) |
+
+### Manual Trigger
+
+You can manually trigger a dependency check via the GitHub Actions UI:
+1. Go to **Actions** > **Check MCP Updates**
+2. Click **Run workflow**
+
 ## Adding New Tools
 
 ### Adding MCP Servers