fix: reasoning effor mismatch

Reviewed-on: #8

src/index.ts

@@ -168,6 +168,9 @@ export default Plugin.define({
                 const assignment = assignments[name];
                 const available = models.get(assignment.model)!;
                 editor.update(name, (agent) => {
+                    const hasVariant = available.model.variants.some(
+                        ({ id }) => id === assignment.effort,
+                    );
                     agent.name = Agent.Name.make(name);
                     agent.mode = "subagent";
                     agent.hidden = false;
@@ -176,10 +179,9 @@ export default Plugin.define({
                         providerID: Provider.ID.make(available.model.providerID),
                         id: Model.ID.make(available.model.id),
                     };
+                    if (hasVariant) agent.model.variant = Model.VariantID.make(assignment.effort);
                     agent.request = {
-                        settings: {
-                            reasoningEffort: assignment.effort,
-                        },
+                        settings: hasVariant ? {} : { reasoningEffort: assignment.effort },
                         headers: {},
                         body: {},
                     };
@@ -193,6 +195,9 @@ export default Plugin.define({
             }
             editor.update("coordinate", (agent) => {
                 const available = models.get(coordinate.model)!;
+                const hasVariant = available.model.variants.some(
+                    ({ id }) => id === coordinate.effort,
+                );
                 agent.name = Agent.Name.make("coordinate");
                 agent.mode = "primary";
                 agent.hidden = false;
@@ -202,8 +207,9 @@ export default Plugin.define({
                     providerID: Provider.ID.make(available.model.providerID),
                     id: Model.ID.make(available.model.id),
                 };
+                if (hasVariant) agent.model.variant = Model.VariantID.make(coordinate.effort);
                 agent.request = {
-                    settings: { reasoningEffort: coordinate.effort },
+                    settings: hasVariant ? {} : { reasoningEffort: coordinate.effort },
                     headers: {},
                     body: {},
                 };

tests/plugin.test.ts

@@ -17,7 +17,16 @@ const providerID = Provider.ID.make("test");
 function model(id: string): ModelInfo {
     return Model.Info.default(providerID, Model.ID.make(id));
 }
-const allModels = ["gpt-5.6-luna", "gpt-5.6-sol", "gpt-6-astra"].map(model);
+function reasoningModel(id: string): ModelInfo {
+    return {
+        ...model(id),
+        variants: ["low", "medium", "high"].map((effort) => ({
+            id: Model.VariantID.make(effort),
+            settings: { reasoningEffort: effort },
+        })),
+    };
+}
+const allModels = ["gpt-5.6-luna", "gpt-5.6-sol", "gpt-6-astra"].map(reasoningModel);
 const cleanups: Plugin.Cleanup[] = [];
 afterEach(async () => {
     for (const cleanup of cleanups.splice(0)) await cleanup();
@@ -609,7 +618,8 @@ test("reasoning settings and Luna priority use native advertised or official sup
         settings: { baseURL: "https://api.openai.com/v1" },
     };
     const ordinary = await host();
-    expect(ordinary.agents.get("fast-lo")?.request.settings).toEqual({ reasoningEffort: "low" });
+    expect(ordinary.agents.get("fast-lo")?.request.settings).toEqual({});
+    expect(String(ordinary.agents.get("fast-lo")?.model?.variant)).toBe("low");
     const official = await host([luna, ...allModels.slice(1)]);
     expect(official.agents.get("fast-hi")?.request.settings).toEqual({
         reasoningEffort: "high",
@@ -632,13 +642,43 @@ test("reasoning settings and Luna priority use native advertised or official sup
     expect(disabled.agents.get("fast-lo")?.request.settings).toEqual({ reasoningEffort: "low" });
 });
 
+test("coordinator defaults expose their effort variant without relying on it for requests", async () => {
+    for (const options of [{ provider: "test" }, { mode: "gpt", provider: "test" }] as const) {
+        const result = await host(allModels, options);
+        expect(result.agents.get("coordinate")?.model).toMatchObject({
+            id: "gpt-6-astra",
+            variant: "medium",
+        });
+        expect(result.agents.get("coordinate")?.request.settings.reasoningEffort).toBeUndefined();
+    }
+
+    const fallback = await host(allModels.slice(0, 2));
+    expect(fallback.agents.get("coordinate")?.model).toMatchObject({
+        id: "gpt-5.6-sol",
+        variant: "medium",
+    });
+    expect(fallback.agents.get("coordinate")?.request.settings.reasoningEffort).toBeUndefined();
+
+    const custom = await host([...allModels, model("local")], {
+        mode: "custom",
+        provider: "test",
+        agents: { ...gptAgents, coordinate: { model: "local", effort: "xhigh" } },
+    });
+    expect(custom.agents.get("coordinate")?.model?.variant).toBeUndefined();
+    expect(custom.agents.get("coordinate")?.request.settings.reasoningEffort).toBe("xhigh");
+});
+
 test("catalog updates activate late models and remove unavailable agents", async () => {
     const result = await host([]);
     await result.refresh(allModels);
     expect(String(result.agents.get("coordinate")?.model?.id)).toBe("gpt-6-astra");
+    expect(String(result.agents.get("coordinate")?.model?.variant)).toBe("medium");
+    expect(result.agents.get("coordinate")?.request.settings.reasoningEffort).toBeUndefined();
     await result.refresh(allModels.slice(0, 2));
     expect(result.agents.has("deep-lo")).toBe(false);
     expect(String(result.agents.get("coordinate")?.model?.id)).toBe("gpt-5.6-sol");
+    expect(String(result.agents.get("coordinate")?.model?.variant)).toBe("medium");
+    expect(result.agents.get("coordinate")?.request.settings.reasoningEffort).toBeUndefined();
     await result.refresh([]);
     expect(result.agents.has("coordinate")).toBe(false);
 });