fix: align widget host integration with MCP Apps

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@waishnav/devspace",
-  "version": "1.0.19",
+  "version": "1.0.20",
   "description": "Expose a secure local coding workspace through an MCP server.",
   "type": "module",
   "main": "dist/server.js",
@@ -41,7 +41,7 @@
     "@anthropic-ai/sandbox-runtime": "0.0.71",
     "@clack/prompts": "^1.5.1",
     "@earendil-works/pi-coding-agent": "^0.80.3",
-    "@modelcontextprotocol/ext-apps": "^1.7.2",
+    "@modelcontextprotocol/ext-apps": "^1.7.5",
     "@modelcontextprotocol/sdk": "^1.29.0",
     "@opencode-ai/sdk": "^1.17.13",
     "@pierre/diffs": "^1.2.5",

src/server.test.ts

@@ -22,7 +22,7 @@ test("workspace app resource declares its dedicated public origin", async (t) =>
   const context = await fixture(t);
   const listed = await context.client.listResources();
   const resource = listed.resources.find((entry) =>
-    entry.uri === "ui://devspace/workspace-app/v1.html"
+    entry.uri === "ui://devspace/workspace-app/v2.html"
   );
   assert.ok(resource);
 
@@ -39,17 +39,17 @@ test("workspace app resource declares its dedicated public origin", async (t) =>
   assert.deepEqual(ui?.csp?.connectDomains, [origin]);
 });
 
-test("widget tools expose the ChatGPT outputTemplate compatibility alias", async (t) => {
+test("widget tools use the MCP Apps resource URI without the legacy ChatGPT alias", async (t) => {
   const context = await fixture(t);
   const listed = await context.client.listTools();
   const openWorkspace = listed.tools.find((tool) => tool.name === "open_workspace");
   assert.ok(openWorkspace);
 
   const meta = openWorkspace._meta as Record<string, unknown> | undefined;
-  assert.equal(meta?.["openai/outputTemplate"], "ui://devspace/workspace-app/v1.html");
-  assert.equal(meta?.["ui/resourceUri"], "ui://devspace/workspace-app/v1.html");
+  assert.equal(meta?.["openai/outputTemplate"], undefined);
+  assert.equal(meta?.["ui/resourceUri"], "ui://devspace/workspace-app/v2.html");
   assert.deepEqual(meta?.ui, {
-    resourceUri: "ui://devspace/workspace-app/v1.html",
+    resourceUri: "ui://devspace/workspace-app/v2.html",
     visibility: ["model"],
   });
 });

src/server.ts

@@ -64,7 +64,7 @@ import {
 } from "./local-agent-availability.js";
 
 const PROCESS_HANDOFF_MS = 2_000;
-const WORKSPACE_APP_URI = "ui://devspace/workspace-app/v1.html";
+const WORKSPACE_APP_URI = "ui://devspace/workspace-app/v2.html";
 const WORKSPACE_APP_MANIFEST_ENTRY = "workspace-app.html";
 const WRITE_TOOL_ANNOTATIONS = {
   readOnlyHint: false,
@@ -134,7 +134,6 @@ interface ToolDefinitionMeta extends Record<string, unknown> {
     resourceUri: string;
     visibility: ["model"];
   };
-  "openai/outputTemplate": string;
 }
 
 type EmptyToolDefinitionMeta = Record<string, unknown> & {
@@ -168,7 +167,6 @@ function toolWidgetDescriptorMeta(
         resourceUri: WORKSPACE_APP_URI,
         visibility: ["model"],
       },
-      "openai/outputTemplate": WORKSPACE_APP_URI,
     },
   };
 }

src/stateless-mcp-http.test.ts

@@ -12,7 +12,7 @@ import { SqliteOAuthStore } from "./oauth-store.js";
 import { createServer } from "./server.js";
 
 const PROTOCOL_VERSION = "2025-06-18";
-const WORKSPACE_APP_URI = "ui://devspace/workspace-app/v1.html";
+const WORKSPACE_APP_URI = "ui://devspace/workspace-app/v2.html";
 
 test("stateless MCP keeps resources readable after more than 32 fresh client initializations", async (t) => {
   const root = await mkdtemp(join(tmpdir(), "devspace-stateless-http-test-"));
@@ -107,7 +107,7 @@ test("stateless MCP keeps resources readable after more than 32 fresh client ini
     assert.equal(resource.status, 200);
     assert.equal(resource.headers.get("mcp-session-id"), null);
     const body = await resource.text();
-    assert.match(body, /ui:\/\/devspace\/workspace-app\/v1\.html/);
+    assert.match(body, /ui:\/\/devspace\/workspace-app\/v2\.html/);
     assert.match(body, /text\/html/);
   }
 });

src/ui/workspace-app.tsx

@@ -82,7 +82,7 @@ if (!maybeAppRoot) {
 const appRoot = maybeAppRoot;
 
 const CARD_PROBE_PREFIX = "[DevSpace card-probe]";
-const CARD_PROBE_BUILD = "card-race-v4";
+const CARD_PROBE_BUILD = "card-race-v5";
 
 void boot();
 
@@ -91,7 +91,7 @@ async function boot(): Promise<void> {
   render();
 
   app = new App(
-    { name: "devspace-tool-cards", version: "0.5.0-card-store-probe" },
+    { name: "devspace-tool-cards", version: "0.6.0-mcp-apps-only" },
     {},
   );