fix(server): Antigravity Gemini limits show consumed quota instead of 100% left

apps/server/src/provider/antigravityUsageLimits.test.ts

@@ -52,6 +52,8 @@ const fixture = Effect.fn("AntigravityUsageTest.fixture")(function* (
     summary?: unknown;
     /** Per-host quota summaries; hosts not listed fall back to `summary`. */
     summaryByHost?: Record<string, unknown>;
+    /** Mirrors the daily endpoint, which leaves out the Gemini group for the legacy hub/1.0.0 client. */
+    legacyClientOmitsGemini?: boolean;
     models?: unknown;
     summaryStatus?: number;
     /** Per-host summary statuses; hosts not listed fall back to `summaryStatus`. */
@@ -107,12 +109,21 @@ const fixture = Effect.fn("AntigravityUsageTest.fixture")(function* (
         );
       }
       expect(JSON.parse(body)).toEqual({ project: "project-id" });
+      const omitGemini =
+        options.legacyClientOmitsGemini &&
+        url.host === "daily-cloudcode-pa.googleapis.com" &&
+        request.headers["user-agent"]?.startsWith("antigravity/hub/1.0.0 ");
       return HttpClientResponse.fromWeb(
         request,
         request.url.endsWith(":retrieveUserQuotaSummary")
-          ? Response.json(options.summaryByHost?.[url.host] ?? options.summary ?? summary, {
-              status: options.summaryStatusByHost?.[url.host] ?? options.summaryStatus ?? 200,
-            })
+          ? Response.json(
+              omitGemini
+                ? {
+                    groups: summary.groups.filter((group) => group.displayName !== "Gemini Models"),
+                  }
+                : (options.summaryByHost?.[url.host] ?? options.summary ?? summary),
+              { status: options.summaryStatusByHost?.[url.host] ?? options.summaryStatus ?? 200 },
+            )
           : Response.json(options.models ?? { models: {} }),
       );
     }),
@@ -188,6 +199,63 @@ describe("Antigravity subscription limits", () => {
     }).pipe(Effect.scoped, Effect.provide(NodeServices.layer)),
   );
 
+  it.effect("reads consumed Gemini quota that the daily endpoint gates on client version", () =>
+    Effect.gen(function* () {
+      const { probe } = yield* fixture({
+        legacyClientOmitsGemini: true,
+        summaryByHost: {
+          // Production reports every bucket as unused for consumer accounts,
+          // so only the daily endpoint carries the real Gemini readings.
+          "cloudcode-pa.googleapis.com": {
+            groups: summary.groups.map((group) => ({
+              ...group,
+              buckets: group.buckets.map((bucket) => ({ ...bucket, remainingFraction: 1 })),
+            })),
+          },
+        },
+      });
+      const limits = yield* probe;
+      const byId = new Map(limits.windows.map((window) => [window.id, window]));
+      expect(byId.get("gemini-5h")?.usedPercent).toBeCloseTo(9);
+      expect(byId.get("gemini-weekly")?.usedPercent).toBeCloseTo(4);
+    }).pipe(Effect.scoped, Effect.provide(NodeServices.layer)),
+  );
+
+  it.effect("labels Argon's weekly quota apart from the default Gemini weekly quota", () =>
+    Effect.gen(function* () {
+      const { probe } = yield* fixture({
+        summary: {
+          groups: [
+            ...summary.groups,
+            {
+              displayName: "Gemini 4 Argon",
+              buckets: [
+                {
+                  bucketId: "gemini-argon-wtu-weekly",
+                  window: "weekly",
+                  remainingFraction: 0.6,
+                  resetTime: "2026-10-25T00:25:01Z",
+                },
+              ],
+            },
+          ],
+        },
+      });
+      const limits = yield* probe;
+      const labels = limits.windows.map((window) => window.label);
+      expect(new Set(labels).size).toBe(labels.length);
+      const byId = new Map(limits.windows.map((window) => [window.id, window]));
+      expect(byId.get("gemini-weekly")?.label).toBe("Gemini · Weekly");
+      expect(byId.get("gemini-argon-wtu-weekly")).toMatchObject({
+        label: "Gemini 4 Argon · Weekly",
+        kind: "weekly",
+        windowDurationMins: 10080,
+        resetsAt: "2026-10-25T00:25:01.000Z",
+      });
+      expect(byId.get("gemini-argon-wtu-weekly")?.usedPercent).toBeCloseTo(40);
+    }).pipe(Effect.scoped, Effect.provide(NodeServices.layer)),
+  );
+
   it.effect("keeps one endpoint's quotas when the other fails", () =>
     Effect.gen(function* () {
       const { probe } = yield* fixture({

apps/server/src/provider/antigravityUsageLimits.ts

@@ -104,11 +104,15 @@ function summaryWindows(summary: typeof Summary.Type) {
   for (const group of groups ?? []) {
     for (const bucket of group.buckets ?? []) {
       if (bucket.disabled) continue;
-      const family = bucket.bucketId.startsWith("gemini-")
-        ? "Gemini"
-        : bucket.bucketId.startsWith("3p-")
-          ? "Claude & GPT (shared)"
-          : group.displayName?.trim() || bucket.bucketId;
+      // Argon's weekly allowance is metered apart from the default Gemini
+      // buckets, so it keeps its own name instead of a second "Gemini · Weekly".
+      const family = bucket.bucketId.startsWith("gemini-argon-")
+        ? group.displayName?.trim() || "Gemini 4 Argon"
+        : bucket.bucketId.startsWith("gemini-")
+          ? "Gemini"
+          : bucket.bucketId.startsWith("3p-")
+            ? "Claude & GPT (shared)"
+            : group.displayName?.trim() || bucket.bucketId;
       const weekly = bucket.window === "weekly";
       const session = bucket.window === "5h";
       const window = quotaWindow(
@@ -260,7 +264,11 @@ export const makeAntigravityUsageProbe = Effect.fn("makeAntigravityUsageProbe")(
             HttpClientRequest.post(`${endpoint}/v1internal:${operation}`).pipe(
               HttpClientRequest.setHeaders({
                 Authorization: `Bearer ${accessToken}`,
-                "User-Agent": `antigravity/hub/1.0.0 (aidev_client; os_type=${platform}; arch=${architecture}; cl=963137146)`,
+                // Neither endpoint reports consumed Gemini quota to the legacy
+                // hub/1.0.0 client: daily leaves the Gemini group out, and
+                // production omits it or reports it unused. 2.24.0 is the
+                // Antigravity app's version.
+                "User-Agent": `antigravity/hub/2.24.0 (aidev_client; os_type=${platform}; arch=${architecture}; cl=963137146)`,
               }),
               HttpClientRequest.bodyJsonUnsafe(
                 token.project_id ? { project: token.project_id } : {},