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Add .claude-plugin/marketplace.json for plugin distribution #306

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jonathanhefner merged 1 commit into from
Jan 20, 2026
+25 −11
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Add .claude-plugin/marketplace.json for plugin distribution #306

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14 changes: 14 additions & 0 deletions .claude-plugin/marketplace.json
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@@ -0,0 +1,14 @@
{
"name": "mcp-apps",
"description": "Plugins for MCP Apps development",
"owner": {
"name": "MCP Apps"
},
"plugins": [
{
"name": "mcp-apps",
"source": "./plugins/mcp-apps",
"description": "Skills for creating MCP Apps with the MCP Apps SDK"
}
]
}
13 changes: 6 additions & 7 deletions README.md
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Expand Up @@ -44,14 +44,13 @@ We have [contributed a tentative implementation](https://github.com/MCP-UI-Org/m
npm install -S @modelcontextprotocol/ext-apps
```

Or edit your `package.json` manually:
### Claude Code Plugin

```json
{
"dependencies": {
"@modelcontextprotocol/ext-apps": "^0.0.1"
}
}
A [Claude Code plugin](https://github.com/modelcontextprotocol/ext-apps/tree/main/plugins/mcp-apps) is available to help create MCP Apps. To install, run these commands inside Claude Code:

```
/plugin marketplace add modelcontextprotocol/ext-apps
/plugin install mcp-apps@modelcontextprotocol-ext-apps
Comment on lines +52 to +53
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@jonathanhefner jonathanhefner Jan 20, 2026

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This needs to be tested (after we merge).

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@ochafik ochafik Jan 20, 2026

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Can test locally w/ /plugin marketplace add /path/to/ext-apps

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@jonathanhefner jonathanhefner Jan 20, 2026

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I wasn't 100% sure about /plugin install mcp-apps@modelcontextprotocol-ext-apps. Specifically, the format of @modelcontextprotocol-ext-apps. I suppose CC derives that from .claude-plugin/marketplace.json -> plugins[].source -> .claude-plugin/plugin.json -> repository? 🤔

Anyway, it works. Thanks!

```

## Examples
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2 changes: 1 addition & 1 deletion plugins/mcp-apps/.claude-plugin/plugin.json
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Expand Up @@ -5,7 +5,7 @@
"author": {
"name": "MCP Apps"
},
"repository": "https://github.com/anthropics/mcp-ext-apps",
"repository": "https://github.com/modelcontextprotocol/ext-apps",
"license": "MIT",
"keywords": ["mcp", "mcp-apps", "model-context-protocol", "ui", "interactive"]
}
7 changes: 4 additions & 3 deletions plugins/mcp-apps/README.md
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Expand Up @@ -6,9 +6,10 @@ A Claude Code plugin that provides the "Create MCP App" skill for building MCP A

Install via Claude Code:

1. Run `/plugin` in Claude Code
2. Navigate to the Discover tab
3. Install "mcp-apps"
```
/plugin marketplace add modelcontextprotocol/ext-apps
/plugin install mcp-apps@modelcontextprotocol-ext-apps
```

## Usage

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