From 7d5c3257dd28cf74069fa15ff3dcbdc86471aefa Mon Sep 17 00:00:00 2001
From: Andy Salerno <ansalern@microsoft.com>
Date: Tue, 25 Aug 2026 19:49:51 -0700
Subject: [PATCH 1/2] Node: Cover synthetic model list compatibility

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 nodejs/test/client.test.ts | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/nodejs/test/client.test.ts b/nodejs/test/client.test.ts
index 3ffda2fa7..34da7f1b2 100644
--- a/nodejs/test/client.test.ts
+++ b/nodejs/test/client.test.ts
@@ -16,6 +16,7 @@ import {
     type ManagedSettings,
     type ModelInfo,
 } from "../src/index.js";
+import type { Model } from "../src/generated/rpc.js";
 import { CopilotSession } from "../src/session.js";
 import { defaultJoinSessionPermissionHandler } from "../src/types.js";
 
@@ -2984,7 +2985,32 @@ describe("CopilotClient", () => {
         });
     });
 
-    describe("onListModels", () => {
+    describe("model listing", () => {
+        it("preserves synthetic model identifiers and picker metadata through models.list", async () => {
+            const models: Model[] = [
+                {
+                    id: "hydrafusion",
+                    name: "HydraFusion",
+                    capabilities: {},
+                    modelPickerCategory: "powerful",
+                },
+                {
+                    id: "hydrafusion-max",
+                    name: "HydraFusion Max",
+                    capabilities: {},
+                    modelPickerCategory: "powerful",
+                },
+            ];
+            const sendRequest = vi.fn().mockResolvedValue({ models });
+            const client = new CopilotClient();
+            (client as any).connection = { sendRequest };
+
+            const result = await client.rpc.models.list({});
+
+            expect(sendRequest).toHaveBeenCalledWith("models.list", {});
+            expect(result.models).toEqual(models);
+        });
+
         it("calls onListModels handler instead of RPC when provided", async () => {
             const customModels: ModelInfo[] = [
                 {

From 4b30395b5e30811cfe2b7a4a14e1d2fdca0448cc Mon Sep 17 00:00:00 2001
From: Andy Salerno <ansalern@microsoft.com>
Date: Fri, 28 Aug 2026 09:48:13 -0700
Subject: [PATCH 2/2] Update HydraFusion model categories

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 1bc96139-e399-44b5-92c1-ad27b9ea4995
---
 nodejs/test/client.test.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nodejs/test/client.test.ts b/nodejs/test/client.test.ts
index 34da7f1b2..b15e435b9 100644
--- a/nodejs/test/client.test.ts
+++ b/nodejs/test/client.test.ts
@@ -2992,7 +2992,7 @@ describe("CopilotClient", () => {
                     id: "hydrafusion",
                     name: "HydraFusion",
                     capabilities: {},
-                    modelPickerCategory: "powerful",
+                    modelPickerCategory: "versatile",
                 },
                 {
                     id: "hydrafusion-max",