feat(app): show each subagent's model and effort under its title (#7290)

Paseo subagent rows in the subagents list had an empty info strip: the row
only rendered the daemon-provided subtitle, which only provider subagents
carry. The row now uses the same facts line an agent's sheet shows when it
opens without its composer, so both surfaces resolve model, thinking, mode,
and context the way the composer's controls do.

The facts sit under the title instead of beside it, so a long task name
keeps the row's width instead of fighting the strip for it.

packages/app/e2e/browser/compact-workspace-sheet.spec.ts

@@ -71,6 +71,14 @@ test("compact opens files and subagents in a sheet, leaving the tabs for agents"
       await closeSheet(page, "linked.ts");
     });
 
+    await test.step("a subagent's row shows the facts its sheet shows", async () => {
+      await page.getByTestId("subagents-track-header").click();
+      await expect(page.getByTestId(`subagents-track-row-facts-${child.id}`)).toHaveText(
+        "Ten second stream · Low · Load test",
+      );
+      await tapSheetBackdrop(page);
+    });
+
     await test.step("a subagent opens in a sheet over the subagents list", async () => {
       await openSubagentFromCompactTrack(page, child.id);
 

packages/app/src/panels/agent-facts-line.ts

@@ -1,7 +1,10 @@
 import type { AgentMode, AgentModelDefinition } from "@getpaseo/protocol/agent-types";
+import { useShallow } from "zustand/shallow";
 import { formatAgentModeLabel } from "@/agent-controls/labels";
 import { formatTokenCount } from "@/components/context-window-meter.utils";
 import { resolveAgentModelSelection } from "@/composer/agent-controls/utils";
+import { useProvidersSnapshot } from "@/hooks/use-providers-snapshot";
+import { useSessionStore } from "@/stores/session-store";
 
 export interface AgentFactsInput {
   models: AgentModelDefinition[] | null;
@@ -33,6 +36,32 @@ export function buildAgentFactsLine(input: AgentFactsInput): string | null {
   return parts.join(" · ");
 }
 
+/** The facts line for a Paseo agent in the session store, kept current as the agent reports. */
+export function useAgentFactsLine(serverId: string, agentId: string): string | null {
+  const agent = useSessionStore(
+    useShallow((state) => {
+      const current = state.sessions[serverId]?.agents.get(agentId);
+      return current
+        ? {
+            provider: current.provider,
+            cwd: current.cwd,
+            runtimeModelId: current.runtimeInfo?.model ?? null,
+            configuredModelId: current.model ?? null,
+            runtimeThinkingOptionId: current.runtimeInfo?.thinkingOptionId ?? null,
+            explicitThinkingOptionId: current.thinkingOptionId ?? null,
+            availableModes: current.availableModes,
+            currentModeId: current.currentModeId,
+            contextWindowUsedTokens: current.lastUsage?.contextWindowUsedTokens ?? null,
+            contextWindowMaxTokens: current.lastUsage?.contextWindowMaxTokens ?? null,
+          }
+        : null;
+    }),
+  );
+  const { entries } = useProvidersSnapshot(serverId, { cwd: agent?.cwd });
+  const models = entries?.find((entry) => entry.provider === agent?.provider)?.models ?? null;
+  return agent ? buildAgentFactsLine({ ...agent, models }) : null;
+}
+
 /** The mode control shows the current mode, or the provider's first one until the agent reports. */
 function resolveModeLabel(modes: AgentMode[], currentModeId: string | null | undefined) {
   const mode = modes.find((candidate) => candidate.id === currentModeId) ?? modes[0];

packages/app/src/panels/agent-panel.tsx

@@ -60,9 +60,8 @@ import { useContainerWidthBelow } from "@/hooks/use-container-width";
 import { reconcileMissingAgentStateWithPresentAgent } from "@/panels/agent-panel-load-state";
 import { TimelineSyncStatus } from "@/timeline/sync-status";
 import { usePaneContext, usePaneFocus } from "@/panels/pane-context";
-import { buildAgentFactsLine } from "@/panels/agent-facts-line";
+import { useAgentFactsLine } from "@/panels/agent-facts-line";
 import { PaneSubtitle } from "@/panels/pane-subtitle";
-import { useProvidersSnapshot } from "@/hooks/use-providers-snapshot";
 import { definePanel, type PanelDescriptor } from "@/panels/panel-registry";
 import { RenderProfile } from "@/utils/render-profiler";
 import { useHasPluginComposerPills } from "@/plugins";
@@ -1384,28 +1383,7 @@ function TimelineSyncErrorCallout({
  * without its composer.
  */
 function SheetAgentFacts({ serverId, agentId }: { serverId: string; agentId: string }) {
-  const agent = useSessionStore(
-    useShallow((state) => {
-      const current = state.sessions[serverId]?.agents.get(agentId);
-      return current
-        ? {
-            provider: current.provider,
-            cwd: current.cwd,
-            runtimeModelId: current.runtimeInfo?.model ?? null,
-            configuredModelId: current.model ?? null,
-            runtimeThinkingOptionId: current.runtimeInfo?.thinkingOptionId ?? null,
-            explicitThinkingOptionId: current.thinkingOptionId ?? null,
-            availableModes: current.availableModes,
-            currentModeId: current.currentModeId,
-            contextWindowUsedTokens: current.lastUsage?.contextWindowUsedTokens ?? null,
-            contextWindowMaxTokens: current.lastUsage?.contextWindowMaxTokens ?? null,
-          }
-        : null;
-    }),
-  );
-  const { entries } = useProvidersSnapshot(serverId, { cwd: agent?.cwd });
-  const models = entries?.find((entry) => entry.provider === agent?.provider)?.models ?? null;
-  const text = agent ? buildAgentFactsLine({ ...agent, models }) : null;
+  const text = useAgentFactsLine(serverId, agentId);
   return text ? <PaneSubtitle text={text} testID="agent-pane-subtitle" /> : null;
 }
 

packages/app/src/subagents/track.tsx

@@ -13,6 +13,7 @@ import {
   type WorkspaceTabPresentation,
 } from "@/screens/workspace/workspace-tab-presentation";
 import type { Theme } from "@/styles/theme";
+import { useAgentFactsLine } from "@/panels/agent-facts-line";
 import { getPanelManifest } from "@/panels/panel-manifest";
 import type { SubagentRow } from "./select";
 import type { ArchiveFinishedStatus } from "./use-archive-finished";
@@ -219,14 +220,16 @@ function SubagentsTrackRow({
     ({ active }: { active: boolean }) => (
       <>
         <WorkspaceTabIcon presentation={presentation} backdrop={active ? "surface2" : "surface1"} />
-        <Text style={styles.rowLabel} numberOfLines={1}>
-          {displayLabel}
-        </Text>
-        {presentation.subtitle ? (
-          <Text style={styles.rowTrailing} numberOfLines={1}>
-            {presentation.subtitle}
+        <View style={styles.rowText}>
+          <Text style={styles.rowTitle} numberOfLines={1}>
+            {displayLabel}
           </Text>
-        ) : null}
+          {row.kind === "paseo" ? (
+            <PaseoSubagentFacts serverId={serverId} agentId={row.id} />
+          ) : (
+            <SubagentFacts rowId={row.id} text={presentation.subtitle} />
+          )}
+        </View>
         {row.kind === "paseo" ? (
           <SubagentRowActions
             rowId={row.id}
@@ -247,6 +250,7 @@ function SubagentsTrackRow({
       presentation,
       row.kind,
       row.id,
+      serverId,
     ],
   );
 
@@ -262,6 +266,21 @@ function SubagentsTrackRow({
   );
 }
 
+/** The same facts line the agent's sheet shows when it opens without its composer. */
+function PaseoSubagentFacts({ serverId, agentId }: { serverId: string; agentId: string }) {
+  const text = useAgentFactsLine(serverId, agentId);
+  return <SubagentFacts rowId={agentId} text={text} />;
+}
+
+function SubagentFacts({ rowId, text }: { rowId: string; text: string | null }) {
+  if (!text) return null;
+  return (
+    <Text style={styles.rowFacts} numberOfLines={1} testID={`subagents-track-row-facts-${rowId}`}>
+      {text}
+    </Text>
+  );
+}
+
 function SubagentRowActions({
   rowId,
   displayLabel,
@@ -360,9 +379,24 @@ const styles = StyleSheet.create((theme) => ({
     fontSize: theme.fontSize.base,
     color: theme.colors.foreground,
   },
-  // Trailing metadata — provider context on a subagent row, progress on the archive row. No width
-  // cap: the panel's own ceiling bounds it. It shrinks twice as fast as the label, so a wordy
-  // provider subtitle gives way first instead of squeezing the thing that names the row.
+  // Title over facts. The facts sit under the title rather than beside it, so a long task name
+  // keeps the row's full width and neither line truncates the other.
+  rowText: {
+    flexGrow: 1,
+    flexShrink: 1,
+    flexBasis: "auto",
+    minWidth: 0,
+  },
+  rowTitle: {
+    fontSize: theme.fontSize.base,
+    color: theme.colors.foreground,
+  },
+  rowFacts: {
+    fontSize: theme.fontSize.sm,
+    color: theme.colors.foregroundMuted,
+  },
+  // Progress on the archive row. It shrinks twice as fast as the label, so a long retry count
+  // gives way first instead of squeezing the thing that names the row.
   rowTrailing: {
     flexShrink: 2,
     minWidth: 0,