Agents: test DashScope developer-role compatibility

src/agents/model-compat.test.ts

@@ -77,6 +77,32 @@ describe("normalizeModelCompat", () => {
     ).toBe(false);
   });
 
+  it("forces supportsDeveloperRole off for DashScope provider ids", () => {
+    const model = {
+      ...baseModel(),
+      provider: "dashscope",
+      baseUrl: "https://dashscope.aliyuncs.com/compatible-mode/v1",
+    };
+    delete (model as { compat?: unknown }).compat;
+    const normalized = normalizeModelCompat(model);
+    expect(
+      (normalized.compat as { supportsDeveloperRole?: boolean } | undefined)?.supportsDeveloperRole,
+    ).toBe(false);
+  });
+
+  it("forces supportsDeveloperRole off for DashScope-compatible endpoints", () => {
+    const model = {
+      ...baseModel(),
+      provider: "custom-qwen",
+      baseUrl: "https://dashscope-intl.aliyuncs.com/compatible-mode/v1",
+    };
+    delete (model as { compat?: unknown }).compat;
+    const normalized = normalizeModelCompat(model);
+    expect(
+      (normalized.compat as { supportsDeveloperRole?: boolean } | undefined)?.supportsDeveloperRole,
+    ).toBe(false);
+  });
+
   it("leaves non-zai models untouched", () => {
     const model = {
       ...baseModel(),