diff --git a/frontend/src/adapters/mock/index.ts b/frontend/src/adapters/mock/index.ts
index 6702c38..8de814d 100644
--- a/frontend/src/adapters/mock/index.ts
+++ b/frontend/src/adapters/mock/index.ts
@@ -2462,6 +2462,7 @@ export class MockPermissionGateway implements PermissionGateway {
     ],
     writeActionTools: [
       "idea_ask_agent",
+      "idea_ask_agents",
       "idea_run_in_background",
       "idea_launch_agent",
       "idea_stop_agent",
diff --git a/frontend/src/features/permissions/McpToolPermissionsPanel.test.tsx b/frontend/src/features/permissions/McpToolPermissionsPanel.test.tsx
index 9b0e3d5..33cd6d6 100644
--- a/frontend/src/features/permissions/McpToolPermissionsPanel.test.tsx
+++ b/frontend/src/features/permissions/McpToolPermissionsPanel.test.tsx
@@ -108,6 +108,19 @@ describe("PermissionsPanel — Tools MCP IdeA tab", () => {
     expect(screen.getByRole("button", { name: "Enregistrer" })).toHaveProperty("disabled", true);
   });
 
+  it("shows multi-agent delegation in the Délégation agents MCP group", async () => {
+    await renderPanel();
+    await openMcpToolsTab();
+
+    const delegationGroup = screen.getByRole("button", {
+      name: /Délégation agents/,
+    });
+    expect(delegationGroup).toBeTruthy();
+    expect(screen.getByRole("checkbox", {
+      name: /Solliciter plusieurs agents, idea_ask_agents$/,
+    })).toBeTruthy();
+  });
+
   it("creating an override prefills the draft with the current effective allowlist", async () => {
     await renderPanel();
     await openMcpToolsTab();
diff --git a/frontend/src/features/permissions/mcpToolGroups.ts b/frontend/src/features/permissions/mcpToolGroups.ts
index 82c3606..603e031 100644
--- a/frontend/src/features/permissions/mcpToolGroups.ts
+++ b/frontend/src/features/permissions/mcpToolGroups.ts
@@ -39,7 +39,12 @@ export const MCP_TOOL_GROUPS: McpToolGroupDef[] = [
   {
     id: "delegation",
     label: "Délégation agents",
-    tools: ["idea_ask_agent", "idea_launch_agent", "idea_stop_agent"],
+    tools: [
+      "idea_ask_agent",
+      "idea_ask_agents",
+      "idea_launch_agent",
+      "idea_stop_agent",
+    ],
   },
   {
     id: "contextMemory",
@@ -83,6 +88,7 @@ export const MCP_TOOL_LABELS: Record<string, string> = {
   idea_ticket_read_carnet: "Lire le carnet d'un ticket",
   idea_sprint_list: "Lister les sprints",
   idea_ask_agent: "Déléguer à un agent",
+  idea_ask_agents: "Solliciter plusieurs agents",
   idea_launch_agent: "Lancer un agent",
   idea_stop_agent: "Arrêter un agent",
   idea_update_context: "Modifier le contexte d'un agent",
diff --git a/frontend/src/features/terminals/TerminalView.test.tsx b/frontend/src/features/terminals/TerminalView.test.tsx
index 5ba23e4..6e60038 100644
--- a/frontend/src/features/terminals/TerminalView.test.tsx
+++ b/frontend/src/features/terminals/TerminalView.test.tsx
@@ -455,6 +455,52 @@ describe("TerminalView — visible launch-failure surface (ticket #14 F3)", () =
       fitSpy.mockRestore();
     });
 
+    it("keeps fitting across a keyed project remount until the new cell settles", async () => {
+      // ProjectsView keys LayoutGrid by project. A project switch therefore
+      // unmounts/remounts TerminalView, so the mount path itself must keep a
+      // short tail of fits alive while the new cell geometry settles.
+      const fitSpy = vi.spyOn(FitAddon.prototype, "fit");
+      const firstHandle = makeHandle({ sessionId: "project-1" });
+      const secondHandle = makeHandle({ sessionId: "project-2" });
+      const open = vi
+        .fn()
+        .mockResolvedValueOnce(firstHandle)
+        .mockResolvedValueOnce(secondHandle);
+
+      function ProjectTerminal({ projectId }: { projectId: string }) {
+        return (
+          <DIProvider gateways={{ terminal: new MockTerminalGateway() } as unknown as Gateways}>
+            <TerminalView
+              key={projectId}
+              cwd={`/cwd/${projectId}`}
+              open={open}
+            />
+          </DIProvider>
+        );
+      }
+
+      const { rerender } = render(<ProjectTerminal projectId="p1" />);
+      await waitFor(() => expect(open).toHaveBeenCalledTimes(1));
+      setTerminalBoxSize(400, 200);
+      await waitFor(() => expect(firstHandle.resize).toHaveBeenCalled());
+
+      fitSpy.mockClear();
+      rerender(<ProjectTerminal projectId="p2" />);
+      await waitFor(() => expect(open).toHaveBeenCalledTimes(2));
+      setTerminalBoxSize(520, 260);
+
+      for (let i = 0; i < 8; i += 1) {
+        await new Promise((resolve) => requestAnimationFrame(resolve));
+      }
+
+      expect(fitSpy.mock.calls.length).toBeGreaterThan(5);
+      await waitFor(() => expect(secondHandle.resize).toHaveBeenCalled());
+      expect(firstHandle.close).not.toHaveBeenCalled();
+      expect(secondHandle.close).not.toHaveBeenCalled();
+
+      fitSpy.mockRestore();
+    });
+
     it("does not refit when refitSignal is left undefined (no-op for callers that don't pass it)", async () => {
       const fitSpy = vi.spyOn(FitAddon.prototype, "fit");
       const open = vi.fn(async () => makeHandle({ sessionId: "no-signal-1" }));
diff --git a/frontend/src/features/terminals/TerminalView.tsx b/frontend/src/features/terminals/TerminalView.tsx
index 015067f..6a2e8b9 100644
--- a/frontend/src/features/terminals/TerminalView.tsx
+++ b/frontend/src/features/terminals/TerminalView.tsx
@@ -368,7 +368,11 @@ export function TerminalView({
     // manual resize. This stays bounded and preserves the rows/cols-changed
     // guard before touching the PTY.
     const SETTLE_REFIT_FRAMES = 4;
-    const MAX_ZERO_SIZE_RETRIES = 8;
+    // Project switches remount LayoutGrid/TerminalView by key. The new cell can
+    // report a non-zero but still intermediate box for more than the ordinary
+    // transition tail, so the mount path keeps fitting a little longer.
+    const MOUNT_SETTLE_REFIT_FRAMES = 12;
+    const MAX_ZERO_SIZE_RETRIES = MOUNT_SETTLE_REFIT_FRAMES;
     let zeroSizeRetries = 0;
     const refit = () => {
       rafId = 0;
@@ -418,7 +422,7 @@ export function TerminalView({
     };
     const ro = new ResizeObserver(() => scheduleRefit());
     ro.observe(container);
-    scheduleSettledRefit();
+    scheduleRefit(MOUNT_SETTLE_REFIT_FRAMES);
     window.addEventListener("resize", scheduleSettledRefit);
     window.addEventListener("focus", scheduleSettledRefit);
     window.addEventListener("pageshow", scheduleSettledRefit);