fix: show fast mode in status

src/status/status-message.test.ts

@@ -0,0 +1,29 @@
+import { describe, expect, it } from "vitest";
+import { normalizeTestText } from "../../test/helpers/normalize-text.js";
+import { buildStatusMessage } from "./status-message.js";
+
+const buildFastStatus = (model: string, fastMode: boolean) =>
+  normalizeTestText(
+    buildStatusMessage({
+      modelAuth: "api-key",
+      activeModelAuth: "api-key",
+      agent: { model },
+      sessionEntry: {
+        sessionId: "fast-status",
+        updatedAt: 0,
+        fastMode,
+      },
+      sessionKey: "agent:main:main",
+      queue: { mode: "collect", depth: 0 },
+    }),
+  );
+
+describe("buildStatusMessage fast mode labels", () => {
+  it("shows fast mode when enabled", () => {
+    expect(buildFastStatus("openai/gpt-5.4", true)).toContain("Fast");
+  });
+
+  it("hides fast mode when disabled", () => {
+    expect(buildFastStatus("anthropic/claude-opus-4-6", false)).not.toContain("Fast");
+  });
+});

src/status/status-message.ts

@@ -237,6 +237,13 @@ const formatQueueDetails = (queue?: QueueStatus) => {
   return detailParts.length ? ` (${detailParts.join(" · ")})` : "";
 };
 
+const formatFastModeLabel = (enabled: boolean) => {
+  if (!enabled) {
+    return null;
+  }
+  return "Fast";
+};
+
 const readUsageFromSessionLog = (
   sessionId?: string,
   sessionEntry?: SessionEntry,
@@ -705,7 +712,7 @@ export function buildStatusMessage(args: StatusArgs): string {
   const optionParts = [
     `Runtime: ${runtime.label}`,
     `Think: ${thinkLevel}`,
-    fastMode ? "Fast: on" : null,
+    formatFastModeLabel(fastMode),
     textVerbosity ? `Text: ${textVerbosity}` : null,
     verboseLabel,
     traceLabel,