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docs: use registerAppTool helper in MDX example #167

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docs: use registerAppTool helper in MDX example
ochafik Dec 16, 2025
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Merge origin/main - use new _meta.ui format
ochafik Dec 16, 2025
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11 changes: 6 additions & 5 deletions specification/draft/apps.mdx
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Original file line number Diff line number Diff line change
Expand Up @@ -1165,24 +1165,25 @@ Future versions may add additional settings:
Servers SHOULD check client (host would-be) capabilities before registering UI-enabled tools:

```typescript
import { registerAppTool } from "@modelcontextprotocol/ext-apps/server";

const hasUISupport =
clientCapabilities?.extensions?.["io.modelcontextprotocol/ui"]?.mimeTypes?.includes("text/html;profile=mcp-app");

if (hasUISupport) {
// Register tools with UI templates
server.registerTool("get_weather", {
// Register tools with UI templates using the helper
registerAppTool(server, "get_weather", {
description: "Get weather with interactive dashboard",
inputSchema: { /* ... */ },
_meta: {
ui: { resourceUri: "ui://weather-server/dashboard" }
}
});
}, async (args) => { /* ... */ });
} else {
// Register text-only version
// Register text-only version (no helper needed)
server.registerTool("get_weather", {
description: "Get weather as text",
inputSchema: { /* ... */ }
// No UI metadata
});
}
```
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