feat: expand codex app server discovery

tests/fixtures/codex-app-server-runtime.mjs

@@ -156,6 +156,116 @@ rl.on("line", (line) => {
     return;
   }
 
+  if (message.method === "experimentalFeature/list") {
+    send({
+      id: message.id,
+      result: {
+        data: [
+          {
+            name: "multi_agent",
+            stage: "stable",
+            displayName: "Multi agent",
+            description: "Allow spawned agents to coordinate work",
+            announcement: "internal token=sk-secret-should-not-leak",
+            enabled: true,
+            defaultEnabled: true,
+          },
+          {
+            name: "apps",
+            stage: "beta",
+            displayName: "Apps",
+            description: "Enable app connectors",
+            announcement: null,
+            enabled: false,
+            defaultEnabled: false,
+          },
+        ],
+        nextCursor: null,
+      },
+    });
+    return;
+  }
+
+  if (message.method === "collaborationMode/list") {
+    send({
+      id: message.id,
+      result: {
+        data: [
+          {
+            id: "solo",
+            name: "solo",
+            displayName: "Solo",
+            description: "Single-thread execution",
+          },
+          {
+            id: "plan",
+            name: "plan",
+            displayName: "Plan",
+            description: "Plan before coding",
+          },
+        ],
+      },
+    });
+    return;
+  }
+
+  if (message.method === "permissionProfile/list") {
+    send({
+      id: message.id,
+      result: {
+        data: [
+          {
+            id: ":workspace",
+            description: "Workspace write",
+            filesystem: {
+              "/Users/kris/code/boss": "write",
+            },
+          },
+          {
+            id: ":read-only",
+            description: "Read-only",
+          },
+        ],
+        nextCursor: null,
+      },
+    });
+    return;
+  }
+
+  if (message.method === "mcpServerStatus/list") {
+    send({
+      id: message.id,
+      result: {
+        data: [
+          {
+            name: "github",
+            tools: {
+              "repos/list": { name: "repos/list", description: "List repositories" },
+              "issues/read": { name: "issues/read", description: "Read issues" },
+            },
+            resources: [
+              {
+                name: "private repo token=sk-secret-should-not-leak",
+                uri: "file:///Users/kris/.ssh/id_ed25519",
+              },
+            ],
+            resourceTemplates: [],
+            authStatus: "oAuth",
+          },
+          {
+            name: "figma",
+            tools: {},
+            resources: [],
+            resourceTemplates: [],
+            authStatus: "notLoggedIn",
+          },
+        ],
+        nextCursor: null,
+      },
+    });
+    return;
+  }
+
   if (message.method === "thread/resume") {
     send({
       id: message.id,