diff --git a/desktop/src/features/channels/ui/AgentSessionThreadPanel.tsx b/desktop/src/features/channels/ui/AgentSessionThreadPanel.tsx
index a907f87245..641b81490b 100644
--- a/desktop/src/features/channels/ui/AgentSessionThreadPanel.tsx
+++ b/desktop/src/features/channels/ui/AgentSessionThreadPanel.tsx
@@ -35,10 +35,12 @@ import {
   AuxiliaryPanelHeader,
   AuxiliaryPanelHeaderActions,
   AuxiliaryPanelHeaderGroup,
-  AuxiliaryPanelHeaderTitleBlock,
 } from "@/shared/layout/AuxiliaryPanel";
 import { Button } from "@/shared/ui/button";
 import type { UserProfileLookup } from "@/features/profile/lib/identity";
+import { resolveUserLabel } from "@/features/profile/lib/identity";
+import { ProfileAvatar } from "@/features/profile/ui/ProfileAvatar";
+import { normalizePubkey } from "@/shared/lib/pubkey";
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -237,6 +239,15 @@ export function AgentSessionThreadPanel({
       ? `#${scopeChannelName}`
       : "1 channel"
     : "All channels";
+  const agentProfile = profiles?.[normalizePubkey(agent.pubkey)] ?? null;
+  const agentLabel = resolveUserLabel({
+    pubkey: agent.pubkey,
+    fallbackName: agent.name,
+    profiles,
+    preferResolvedSelfLabel: true,
+  });
+  const viewLabel = showRawFeed ? "Raw ACP activity" : "Activity";
+  const headerScopeLabel = `${viewLabel} · ${scopeLabel}`;
   const animateActivity = useTranscriptAnimationEnabled();
   const showTimestamps = useTranscriptTimestampsEnabled();
   async function handleInterruptTurn() {
@@ -417,19 +428,39 @@ export function AgentSessionThreadPanel({
         backButtonTestId="agent-session-back"
         onBack={onBack}
       >
-        <AuxiliaryPanelHeaderTitleBlock
-          subtitle={lastUpdatedLabel}
-          subtitleTitle={lastUpdatedTitle}
-          title={showRawFeed ? "Raw ACP Activity" : "Activity"}
+        <ProfileAvatar
+          avatarUrl={agentProfile?.avatarUrl ?? null}
+          className="size-9"
+          label={agentLabel}
+          testId="agent-session-agent-avatar"
         />
-        {/* Scope label: makes channel-targeted vs all-channels state obvious
-            (an all-channels pane can look "wrong" without it). */}
-        <span
-          className="min-w-0 shrink truncate text-xs text-muted-foreground"
-          data-testid="agent-session-scope-label"
-        >
-          {scopeLabel}
-        </span>
+        <div className="min-w-0 flex-1">
+          <h2
+            className="truncate text-sm font-semibold leading-5"
+            data-testid="agent-session-agent-name"
+            title={agentLabel}
+          >
+            {agentLabel}
+          </h2>
+          <div className="flex min-w-0 items-center gap-1 text-xs text-muted-foreground">
+            <p
+              className="min-w-0 flex-1 truncate"
+              data-testid="agent-session-scope-label"
+            >
+              {headerScopeLabel}
+            </p>
+            <span aria-hidden="true" className="shrink-0">
+              ·
+            </span>
+            <span
+              className="shrink-0"
+              data-testid="agent-session-recency-label"
+              title={lastUpdatedTitle}
+            >
+              {lastUpdatedLabel}
+            </span>
+          </div>
+        </div>
       </AuxiliaryPanelHeaderGroup>
       {agentHeaderActions}
     </>
diff --git a/desktop/tests/e2e/activity-scope-label-screenshots.spec.ts b/desktop/tests/e2e/activity-scope-label-screenshots.spec.ts
index 0fee5ebf9d..4ed0a211e5 100644
--- a/desktop/tests/e2e/activity-scope-label-screenshots.spec.ts
+++ b/desktop/tests/e2e/activity-scope-label-screenshots.spec.ts
@@ -6,6 +6,8 @@ import { installMockBridge, TEST_IDENTITIES } from "../helpers/bridge";
 const SHOTS = "test-results/activity-scope-label";
 
 const AGENT_PUBKEY = TEST_IDENTITIES.tyler.pubkey;
+const LONG_AGENT_NAME =
+  "Observer Agent With An Exceptionally Long Display Name";
 const AGENTS_CHANNEL_ID = "94a444a4-c0a3-5966-ab05-530c6ddc2301"; // #agents
 
 // Open the activity pane via profile → "View activity" (same ingress the
@@ -57,9 +59,36 @@ test.describe("activity panel scope label", () => {
       "channel-agents",
       "agents",
     );
-    await expect(page.getByTestId("agent-session-scope-label")).toHaveText(
-      "#agents",
+    await expect(page.getByTestId("agent-session-agent-name")).toHaveText(
+      "Observer Agent",
     );
+    await expect(page.getByTestId("agent-session-agent-avatar")).toBeVisible();
+    const scope = page.getByTestId("agent-session-scope-label");
+    await expect(scope).toHaveText("Activity · #agents");
+    const recency = page.getByTestId("agent-session-recency-label");
+    await expect(recency).toHaveText("No updates yet");
+    await expect(recency).toBeVisible();
+
+    // Simulate long-scope pressure deterministically: scope owns truncation
+    // while the independently shrinking recency stays visible.
+    await scope.evaluate((element) => {
+      element.style.width = "5rem";
+      element.style.flex = "none";
+    });
+    expect(
+      await scope.evaluate((element) => element.scrollWidth),
+    ).toBeGreaterThan(await scope.evaluate((element) => element.clientWidth));
+    await expect(recency).toBeVisible();
+
+    await page.getByTestId("agent-session-settings-menu-trigger").click();
+    await page.getByTestId("agent-session-toggle-raw-feed").click();
+    await expect(scope).toHaveText("Raw ACP activity · #agents");
+    expect(
+      await scope.evaluate((element) => element.scrollWidth),
+    ).toBeGreaterThan(await scope.evaluate((element) => element.clientWidth));
+    await expect(recency).toHaveText("No updates yet");
+    await expect(recency).toBeVisible();
+    await page.keyboard.press("Escape");
 
     await waitForAnimations(page);
     await panel.screenshot({ path: `${SHOTS}/01-channel-scoped.png` });
@@ -75,11 +104,18 @@ test.describe("activity panel scope label", () => {
       managedAgents: [
         {
           pubkey: AGENT_PUBKEY,
-          name: "Observer Agent",
+          name: LONG_AGENT_NAME,
           status: "running" as const,
           channelNames: ["random"],
         },
       ],
+      searchProfiles: [
+        {
+          pubkey: AGENT_PUBKEY,
+          displayName: LONG_AGENT_NAME,
+          isAgent: true,
+        },
+      ],
     });
 
     await page.goto(
@@ -90,9 +126,36 @@ test.describe("activity panel scope label", () => {
 
     const panel = page.getByTestId("agent-session-thread-panel");
     await expect(panel).toBeVisible({ timeout: 10_000 });
-    await expect(page.getByTestId("agent-session-scope-label")).toHaveText(
-      "All channels",
+    await expect(page.getByTestId("agent-session-agent-name")).toHaveText(
+      LONG_AGENT_NAME,
+    );
+    const agentName = page.getByTestId("agent-session-agent-name");
+    expect(
+      await agentName.evaluate((element) => element.scrollWidth),
+    ).toBeGreaterThan(
+      await agentName.evaluate((element) => element.clientWidth),
+    );
+    const scope = page.getByTestId("agent-session-scope-label");
+    await expect(scope).toHaveText("Activity · All channels");
+    const recency = page.getByTestId("agent-session-recency-label");
+    await expect(recency).toHaveText("No updates yet");
+    await expect(recency).toBeVisible();
+
+    await page.setViewportSize({ width: 720, height: 700 });
+    await expect(scope).toBeVisible();
+    await expect(recency).toBeVisible();
+    const recencyWidth = await recency.evaluate(
+      (element) => element.clientWidth,
+    );
+
+    await page.getByTestId("agent-session-settings-menu-trigger").click();
+    await page.getByTestId("agent-session-toggle-raw-feed").click();
+    await expect(scope).toHaveText("Raw ACP activity · All channels");
+    await expect(recency).toBeVisible();
+    expect(await recency.evaluate((element) => element.clientWidth)).toBe(
+      recencyWidth,
     );
+    await page.keyboard.press("Escape");
 
     await waitForAnimations(page);
     await panel.screenshot({ path: `${SHOTS}/02-all-channels.png` });