Vaadin Agent Marketplace

This repository publishes Vaadin's agent plugin marketplace for Claude Code and Codex.

The marketplace contains one plugin:

• vaadin-skills - Vaadin 25 development skills and MCP tools for Java/Flow, layouts, components, forms, testing, data access, and reactive state management.

The plugin implementation lives in vaadin/agent-skills. This repository only contains the marketplace metadata that lets Claude Code and Codex discover and install that plugin.

Claude Code

Install

In Claude Code, add the Vaadin marketplace:

/plugin marketplace add vaadin/agent-marketplace

Then install the plugin:

/plugin install vaadin-skills@vaadin-marketplace

You can also browse and install it from /plugin by opening the marketplace browser and selecting vaadin-skills.

Use

The skills and MCP tools activate automatically when you ask Claude Code for help with Vaadin development. Example prompts:

• "Create a responsive master-detail view in Vaadin Flow"
• "Add Binder validation to this form"
• "Write UI unit tests for this view"
• "Look up the current Vaadin documentation for Grid lazy loading"

Update

Refresh the marketplace catalog:

/plugin marketplace update vaadin-marketplace

Then update or reinstall vaadin-skills from the plugin manager if a newer version is available.

Codex

Install

Add the Vaadin marketplace:

codex plugin marketplace add vaadin/agent-marketplace --ref main

Then install the plugin:

codex plugin add vaadin-skills@vaadin-marketplace

To inspect the available plugin before installing:

codex plugin list --marketplace vaadin-marketplace --available

Use

Start Codex in a Vaadin project and ask for help with Vaadin development. Codex will load the relevant Vaadin skills and MCP tools from the installed plugin when the task matches their descriptions.

Example prompts:

• "Modernize this Vaadin layout for Flow 25"
• "Create a Lit wrapper for this Web Component"
• "Debug this Binder validation issue"
• "Use Vaadin docs to check the recommended Grid API"

Update

Refresh Git-backed marketplace snapshots:

codex plugin marketplace upgrade

Then reinstall or update vaadin-skills if needed.

Local Marketplace Testing

From a local checkout of this repository, add the marketplace by path:

claude plugin marketplace add ./
codex plugin marketplace add .

Install the plugin from the local marketplace:

claude plugin install vaadin-skills@vaadin-marketplace
codex plugin add vaadin-skills@vaadin-marketplace

Metadata

• Claude Code marketplace metadata: .claude-plugin/marketplace.json
• Codex marketplace metadata: .agents/plugins/marketplace.json

Update plugin instructions, skills, MCP definitions, and plugin manifests in vaadin/agent-skills. Update this repository only when the marketplace catalog itself changes.