diff --git a/frontend/src/shell/AppShell.session-mgmt.test.tsx b/frontend/src/shell/AppShell.session-mgmt.test.tsx
index a12b58e9..8d4dda81 100644
--- a/frontend/src/shell/AppShell.session-mgmt.test.tsx
+++ b/frontend/src/shell/AppShell.session-mgmt.test.tsx
@@ -714,8 +714,8 @@ test("closing and reopening Model activity preserves the complete activity log",
const panel = (await screen.findByRole("heading", { name: /model activity/i })).closest("aside");
expect(panel).not.toBeNull();
expect(within(panel!).getByText("Inspect patient cohort")).toBeInTheDocument();
- expect(within(panel!).getByText("bash")).toBeInTheDocument();
- expect(within(panel!).getByText("Cohort ready")).toBeInTheDocument();
+ expect(within(panel!).queryByText("bash")).not.toBeInTheDocument();
+ expect(within(panel!).queryByText("Cohort ready")).not.toBeInTheDocument();
await userEvent.click(screen.getByRole("button", { name: /close model activity/i }));
expect(screen.queryByRole("heading", { name: /model activity/i })).not.toBeInTheDocument();
@@ -725,8 +725,9 @@ test("closing and reopening Model activity preserves the complete activity log",
const reopened = (await screen.findByRole("heading", { name: /model activity/i })).closest("aside");
expect(reopened).not.toBeNull();
expect(within(reopened!).getByText("Inspect patient cohort")).toBeInTheDocument();
- expect(within(reopened!).getByText("bash")).toBeInTheDocument();
- expect(within(reopened!).getByText("Cohort ready")).toBeInTheDocument();
+ expect(within(reopened!).queryByText("bash")).not.toBeInTheDocument();
+ expect(within(reopened!).queryByText("Cohort ready")).not.toBeInTheDocument();
+ expect(useSessionStore.getState().activityLog).toEqual(beforeClose);
});
test("session finalization shows the completion banner and returns to landing", async () => {
diff --git a/frontend/src/shell/ModelActivityPanel.test.tsx b/frontend/src/shell/ModelActivityPanel.test.tsx
index c50e1c08..80d27742 100644
--- a/frontend/src/shell/ModelActivityPanel.test.tsx
+++ b/frontend/src/shell/ModelActivityPanel.test.tsx
@@ -1,13 +1,14 @@
import { act, fireEvent, render, screen, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { beforeEach, vi } from "vitest";
-import type { ActivityEntry } from "../api/types";
+import type { ActivityEntry, ActivityKind } from "../api/types";
import { useSessionStore } from "../store/sessionStore";
+import * as activityPanelModule from "./ModelActivityPanel";
import { isNearBottom, ModelActivityPanel } from "./ModelActivityPanel";
beforeEach(() => useSessionStore.getState().resetSession());
-test("renders every row in a non-reasoning activity sequence", () => {
+test("renders only prompt, thinking, status, and gate from a mixed F1 sequence", () => {
const store = useSessionStore.getState();
store.setPhase("F1");
store.setLastUserEntry({ kind: "input", text: "How many patients?" });
@@ -20,7 +21,9 @@ test("renders every row in a non-reasoning activity sequence", () => {
type: "activity_event",
activity: { kind: "tool", toolCallId: "tool-1", toolName: "bash", status: "completed" },
});
- store.applyEvent({ type: "text_delta", text: "Found **42 patients**." });
+ store.applyEvent({ type: "text_delta", text: "Let me run another bash search." });
+ store.applyEvent({ type: "activity_delta", text: "Inspecting **schema**." });
+ store.applyEvent({ type: "info", level: "warning", text: "Retrying schema lookup" });
store.applyEvent({
type: "ui_request",
ui_request: { id: "gate-1", widget: "select", phase: "F1_review", title: "Confirm cohort" },
@@ -28,18 +31,54 @@ test("renders every row in a non-reasoning activity sequence", () => {
render();
- expect(screen.getAllByRole("article")).toHaveLength(5);
+ expect(screen.getAllByRole("article")).toHaveLength(4);
expect(screen.getByText("How many patients?")).toBeInTheDocument();
- expect(screen.getByText("Agent started")).toBeInTheDocument();
- expect(screen.getByText("bash")).toBeInTheDocument();
- expect(screen.getByText("42 patients").tagName).toBe("STRONG");
+ expect(screen.getByText("schema").tagName).toBe("STRONG");
+ expect(screen.getByText("Retrying schema lookup")).toBeInTheDocument();
expect(screen.getByText("Confirm cohort")).toBeInTheDocument();
- expect(screen.getAllByText("F1")).toHaveLength(5);
+ expect(screen.queryByText("Agent started")).not.toBeInTheDocument();
+ expect(screen.queryByText("bash")).not.toBeInTheDocument();
+ expect(screen.queryByText("completed")).not.toBeInTheDocument();
+ expect(screen.queryByText("Let me run another bash search.")).not.toBeInTheDocument();
+ expect(useSessionStore.getState().transcript).toEqual([
+ { role: "assistant", text: "Let me run another bash search." },
+ ]);
+});
+
+test("uses an explicit default-deny activity-kind allowlist", () => {
+ const predicate = (activityPanelModule as unknown as {
+ isVisibleModelActivity?: (entry: ActivityEntry) => boolean;
+ }).isVisibleModelActivity;
+ expect(predicate).toBeTypeOf("function");
+ if (!predicate) return;
+
+ for (const kind of ["prompt", "thinking", "status", "gate"] satisfies ActivityKind[]) {
+ expect(predicate({ kind, phase: "F1", text: kind })).toBe(true);
+ }
+ for (const kind of ["assistant", "tool", "lifecycle"] satisfies ActivityKind[]) {
+ expect(predicate({ kind, phase: "F1", text: kind })).toBe(false);
+ }
+ expect(predicate({ kind: "future-kind" as ActivityKind, phase: "F1", text: "future" })).toBe(false);
+});
+
+test("shows the empty state when the raw log contains only hidden entries", () => {
+ useSessionStore.setState({
+ activityLog: [
+ { kind: "assistant", phase: "F1", text: "Let me try another command." },
+ { kind: "tool", phase: "F1", text: "bash", toolCallId: "tool-1", status: "completed" },
+ { kind: "lifecycle", phase: "F1", text: "Turn end" },
+ ],
+ });
+
+ render();
+
+ expect(screen.getByText("No activity yet.")).toBeInTheDocument();
+ expect(screen.queryAllByRole("article")).toHaveLength(0);
});
test("keeps all timeline entries visible without an expansion control", () => {
const activityLog: ActivityEntry[] = Array.from({ length: 8 }, (_, index) => ({
- kind: "lifecycle",
+ kind: "status",
phase: `F${index + 1}`,
text: `timeline-${index + 1}`,
}));
@@ -51,28 +90,6 @@ test("keeps all timeline entries visible without an expansion control", () => {
expect(screen.queryByRole("button", { name: /show (more|less)/i })).not.toBeInTheDocument();
});
-test("shows only the tool name and completion status", () => {
- useSessionStore.setState({
- activityLog: [
- {
- kind: "tool",
- phase: "F4",
- text: "bash",
- toolCallId: "tool-1",
- status: "completed",
- },
- ],
- });
-
- render();
-
- const row = screen.getByText("bash").closest("article");
- expect(row).not.toBeNull();
- expect(within(row!).getByText("completed")).toBeInTheDocument();
- expect(within(row!).queryByRole("button")).not.toBeInTheDocument();
- expect(screen.queryByText(/raw details/i)).not.toBeInTheDocument();
-});
-
test("labels a warning in text instead of relying on its semantic color", () => {
useSessionStore.setState({
activityLog: [
@@ -87,7 +104,7 @@ test("labels a warning in text instead of relying on its semantic color", () =>
expect(within(row!).getByText("warning")).toBeInTheDocument();
});
-test("renders assistant and thinking markdown as separate entries", () => {
+test("renders thinking markdown without assistant narration", () => {
useSessionStore.setState({
activityLog: [
{ kind: "thinking", phase: "F2", text: "Considering **history**." },
@@ -98,8 +115,8 @@ test("renders assistant and thinking markdown as separate entries", () => {
render();
expect(screen.getByText("history").tagName).toBe("STRONG");
- expect(screen.getByText("current").tagName).toBe("EM");
- expect(screen.getAllByRole("article")).toHaveLength(2);
+ expect(screen.queryByText("current")).not.toBeInTheDocument();
+ expect(screen.getAllByRole("article")).toHaveLength(1);
});
test("close calls onClose without mutating the activity log", async () => {
@@ -136,13 +153,13 @@ function setScrollGeometry(
test("follows appended activity while the viewport is near the bottom", () => {
useSessionStore.setState({
- activityLog: [{ kind: "lifecycle", phase: "F1", text: "First" }],
+ activityLog: [{ kind: "prompt", phase: "F1", text: "First" }],
});
render();
const viewport = screen.getByTestId("activity-scroll");
setScrollGeometry(viewport, { scrollHeight: 400, clientHeight: 100, scrollTop: 300 });
- act(() => useSessionStore.getState().recordLifecycle("Second"));
+ act(() => useSessionStore.getState().applyEvent({ type: "info", text: "Second" }));
expect(viewport.scrollTop).toBe(400);
expect(viewport).toHaveAttribute("tabindex", "0");
@@ -150,14 +167,30 @@ test("follows appended activity while the viewport is near the bottom", () => {
test("preserves manual scroll position when appended activity arrives", () => {
useSessionStore.setState({
- activityLog: [{ kind: "lifecycle", phase: "F1", text: "First" }],
+ activityLog: [{ kind: "prompt", phase: "F1", text: "First" }],
});
render();
const viewport = screen.getByTestId("activity-scroll");
setScrollGeometry(viewport, { scrollHeight: 400, clientHeight: 100, scrollTop: 100 });
fireEvent.scroll(viewport);
- act(() => useSessionStore.getState().recordLifecycle("Second"));
+ act(() => useSessionStore.getState().applyEvent({ type: "info", text: "Second" }));
expect(viewport.scrollTop).toBe(100);
});
+
+test("does not bottom-follow when only a hidden event arrives", () => {
+ useSessionStore.setState({
+ activityLog: [{ kind: "prompt", phase: "F1", text: "Visible prompt" }],
+ });
+ render();
+ const viewport = screen.getByTestId("activity-scroll");
+ setScrollGeometry(viewport, { scrollHeight: 400, clientHeight: 100, scrollTop: 300 });
+
+ act(() => useSessionStore.getState().applyEvent({
+ type: "activity_event",
+ activity: { kind: "tool", toolCallId: "tool-2", toolName: "bash", status: "running" },
+ }));
+
+ expect(viewport.scrollTop).toBe(300);
+});
diff --git a/frontend/src/shell/ModelActivityPanel.tsx b/frontend/src/shell/ModelActivityPanel.tsx
index 14c75dc2..ff1f38a0 100644
--- a/frontend/src/shell/ModelActivityPanel.tsx
+++ b/frontend/src/shell/ModelActivityPanel.tsx
@@ -2,10 +2,21 @@ import { useLayoutEffect, useRef } from "react";
import { X } from "lucide-react";
import ReactMarkdown from "react-markdown";
import remarkGfm from "remark-gfm";
-import type { ActivityEntry } from "../api/types";
+import type { ActivityEntry, ActivityKind } from "../api/types";
import { useSessionStore } from "../store/sessionStore";
import { Button } from "../components/ui/button";
+const VISIBLE_MODEL_ACTIVITY_KINDS: ReadonlySet = new Set([
+ "prompt",
+ "thinking",
+ "status",
+ "gate",
+]);
+
+export function isVisibleModelActivity(entry: ActivityEntry): boolean {
+ return VISIBLE_MODEL_ACTIVITY_KINDS.has(entry.kind);
+}
+
export function isNearBottom(
el: Pick,
threshold = 48,
@@ -85,16 +96,19 @@ function ActivityRow({ entry }: { entry: ActivityEntry }) {
);
}
-/** Left drawer showing the complete in-memory model activity timeline. */
+/** Left drawer showing the user-facing projection of the in-memory model activity timeline. */
export function ModelActivityPanel({ onClose }: { onClose: () => void }) {
const activityLog = useSessionStore((s) => s.activityLog);
+ const visibleActivity = activityLog.filter(isVisibleModelActivity);
+ const visibleCount = visibleActivity.length;
+ const visibleTail = visibleActivity.at(-1);
const scrollRef = useRef(null);
const followRef = useRef(true);
useLayoutEffect(() => {
const viewport = scrollRef.current;
if (viewport && followRef.current) viewport.scrollTop = viewport.scrollHeight;
- }, [activityLog]);
+ }, [visibleCount, visibleTail]);
return (