fix: add preferred-frame-size to UI resource

paoloricciuti · paoloricciuti · commit 3fabcc0f9bfe · 2025-10-23T09:57:51.000+02:00
diff --git a/.changeset/moody-terms-beg.md b/.changeset/moody-terms-beg.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/mcp': patch
+---
+
+fix: add `preferred-frame-size` to UI resource
diff --git a/apps/mcp-remote/package.json b/apps/mcp-remote/package.json
@@ -65,6 +65,6 @@
 		"@sveltejs/mcp-schema": "workspace:^",
 		"@sveltejs/mcp-server": "workspace:^",
 		"@tmcp/transport-http": "^0.7.0",
-		"tmcp": "^1.15.1"
+		"tmcp": "^1.15.3"
 	}
 }
diff --git a/packages/mcp-server/package.json b/packages/mcp-server/package.json
@@ -28,7 +28,7 @@
 		"eslint-plugin-svelte": "^3.12.3",
 		"svelte": "^5.39.2",
 		"svelte-eslint-parser": "^1.3.2",
-		"tmcp": "^1.15.0",
+		"tmcp": "^1.15.3",
 		"ts-blank-space": "^0.6.2",
 		"typescript-eslint": "^8.44.0",
 		"valibot": "^1.1.0",
diff --git a/packages/mcp-server/src/mcp/handlers/tools/playground-link.ts b/packages/mcp-server/src/mcp/handlers/tools/playground-link.ts
@@ -116,6 +116,9 @@ export function playground_link(server: SvelteMcp) {
 							type: 'externalUrl',
 							iframeUrl: playground_base.toString(),
 						},
+						uiMetadata: {
+							'preferred-frame-size': ['100%', '1200px'],
+						},
 						encoding: 'text',
 					}),
 				],
diff --git a/packages/mcp-stdio/package.json b/packages/mcp-stdio/package.json
@@ -41,6 +41,6 @@
 	},
 	"dependencies": {
 		"eslint": "^9.36.0",
-		"tmcp": "^1.15.0"
+		"tmcp": "^1.15.3"
 	}
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +'@sveltejs/mcp': patch
 +---
++
 +fix: add `preferred-frame-size` to UI resource
Original file line number	Diff line number	Diff line change
`@@ -65,6 +65,6 @@`
`65`	`65`	`"@sveltejs/mcp-schema": "workspace:^",`
`66`	`66`	`"@sveltejs/mcp-server": "workspace:^",`
`67`	`67`	`"@tmcp/transport-http": "^0.7.0",`
`68`		`- "tmcp": "^1.15.1"`
	`68`	`+ "tmcp": "^1.15.3"`
`69`	`69`	`}`
`70`	`70`	`}`