diff --git a/packages/app/e2e/regression/session-summary-mcp.spec.ts b/packages/app/e2e/regression/session-summary-mcp.spec.ts
index b474fcbe775b..42583fa677de 100644
--- a/packages/app/e2e/regression/session-summary-mcp.spec.ts
+++ b/packages/app/e2e/regression/session-summary-mcp.spec.ts
@@ -32,8 +32,18 @@ test("every MCP row hit area toggles exactly once and keeps the submenu open", a
     })
   })
   await page.goto(stressSessionHref(fixture.targetID))
-  await page.getByRole("button", { name: "Session details", exact: true }).click()
-  await page.getByRole("button", { name: "MCP", exact: true }).click()
+  const trigger = page.getByRole("button", { name: "Session details", exact: true })
+  await expect(trigger.locator('[data-slot="status-indicator"]')).toHaveClass(/bg-v2-background-bg-accent/)
+  await trigger.click()
+  await expect(
+    page
+      .getByRole("dialog", { name: "Session details", exact: true })
+      .getByRole("button", { name: "Extensions", exact: true })
+      .locator('[data-slot="status-indicator"]'),
+  ).toHaveClass(/bg-icon-success-base/)
+  const mcp = page.getByRole("button", { name: "MCP", exact: true })
+  await expect(mcp.locator(".session-summary-service-status")).toHaveClass(/bg-v2-background-bg-accent/)
+  await mcp.click()
   const submenu = page.getByRole("dialog", { name: "MCP", exact: true })
   const toggle = submenu.getByRole("switch", { name: "figma", exact: true })
   const row = submenu
diff --git a/packages/app/e2e/regression/session-summary.spec.ts b/packages/app/e2e/regression/session-summary.spec.ts
index c8eaf19b5ca6..7452916ec410 100644
--- a/packages/app/e2e/regression/session-summary.spec.ts
+++ b/packages/app/e2e/regression/session-summary.spec.ts
@@ -71,11 +71,16 @@ for (const layout of ["horizontal", "vertical"] as const) {
     await page.goto(stressSessionHref(fixture.targetID))
     const trigger = page.getByRole("button", { name: "Session details", exact: true })
     await expect(trigger).toBeEnabled()
+    await expect(trigger.locator('[data-slot="status-indicator"]')).toHaveCount(0)
     await expect(page.getByRole("button", { name: "Status", exact: true })).toHaveCount(0)
     await trigger.click()
     const summary = page.getByRole("dialog", { name: "Session details", exact: true })
     const project = summary.getByRole("button", { name: fixture.project.name, exact: true })
     const server = summary.getByRole("button", { name: "Extensions", exact: true })
+    await expect(server.locator('[data-slot="status-indicator"]')).toBeVisible()
+    await expect(
+      summary.getByRole("button", { name: "MCP", exact: true }).locator(".session-summary-service-status"),
+    ).toHaveCount(0)
     await expect(project).toHaveAttribute("aria-expanded", "true")
     await expect(server).toHaveAttribute("aria-expanded", "true")
     for (const heading of [project, server]) {
diff --git a/packages/app/src/new-session/view.tsx b/packages/app/src/new-session/view.tsx
index b5df344e53ce..3c8902ed0bb9 100644
--- a/packages/app/src/new-session/view.tsx
+++ b/packages/app/src/new-session/view.tsx
@@ -73,7 +73,11 @@ export function NewSessionView(props: {
           data-slot="new-session-summary"
           class="absolute inset-x-0 top-0 z-20 flex h-12 items-center justify-end px-3"
         >
-          <SummaryPopover open={store.summary} onOpenChange={(open) => setStore("summary", open)}>
+          <SummaryPopover
+            directory={props.project.selected() ? props.mcp.directory() : undefined}
+            open={store.summary}
+            onOpenChange={(open) => setStore("summary", open)}
+          >
             <Suspense>
               <NewSessionSummary
                 project={props.project.selected()}
diff --git a/packages/app/src/session/summary/indicator.test.ts b/packages/app/src/session/summary/indicator.test.ts
new file mode 100644
index 000000000000..a18238b9fea7
--- /dev/null
+++ b/packages/app/src/session/summary/indicator.test.ts
@@ -0,0 +1,63 @@
+import { describe, expect, test } from "bun:test"
+import {
+  hasNonBlockingServiceIssue,
+  hasServiceNeedingAttention,
+  serverStatusDotClass,
+  serviceStatusDotClass,
+  summaryStatus,
+} from "./indicator"
+
+describe("serverStatusDotClass", () => {
+  test("uses the success token while the server is healthy", () => {
+    expect(serverStatusDotClass({ ready: true, serverHealth: true, connecting: false })).toBe("bg-icon-success-base")
+  })
+
+  test("uses the critical token when the server is down", () => {
+    expect(serverStatusDotClass({ ready: true, serverHealth: false, connecting: false })).toBe("bg-icon-critical-base")
+    expect(serverStatusDotClass({ ready: true, serverHealth: false, connecting: true })).toBe("bg-icon-critical-base")
+  })
+
+  test("pulses the neutral dot while reconnecting", () => {
+    expect(serverStatusDotClass({ ready: true, serverHealth: true, connecting: true })).toBe(
+      "bg-border-weak-base animate-pulse",
+    )
+  })
+
+  test("stays neutral before status is ready", () => {
+    expect(serverStatusDotClass({ ready: false, serverHealth: true, connecting: false })).toBe("bg-border-weak-base")
+    expect(serverStatusDotClass({ ready: false, serverHealth: undefined, connecting: false })).toBe(
+      "bg-border-weak-base",
+    )
+  })
+})
+
+describe("service status", () => {
+  test("detects MCP failures and authentication needs", () => {
+    expect(hasNonBlockingServiceIssue(["failed"])).toBe(true)
+    expect(hasNonBlockingServiceIssue(["needs_auth"])).toBe(true)
+    expect(hasNonBlockingServiceIssue(["connected", "pending", "disabled"])).toBe(false)
+    expect(hasServiceNeedingAttention(["needs_auth"])).toBe(true)
+    expect(hasServiceNeedingAttention(["failed", "connected", "pending", "disabled"])).toBe(false)
+  })
+
+  test("shows a dot only for noteworthy MCP states", () => {
+    expect(serviceStatusDotClass(["needs_auth"])).toBe("bg-v2-background-bg-accent")
+    expect(serviceStatusDotClass(["failed"])).toBe("bg-icon-warning-base")
+    expect(serviceStatusDotClass(["connected", "pending", "disabled"])).toBeUndefined()
+  })
+
+  test("marks the summary trigger only for errors and attention", () => {
+    expect(summaryStatus({ ready: true, serverHealth: true, mcp: ["connected"], connecting: false }).trigger).toBe(
+      undefined,
+    )
+    expect(summaryStatus({ ready: true, serverHealth: true, mcp: ["needs_auth"], connecting: false })).toMatchObject({
+      server: "bg-icon-success-base",
+      mcp: "bg-v2-background-bg-accent",
+      trigger: "bg-v2-background-bg-accent",
+    })
+    expect(summaryStatus({ ready: true, serverHealth: false, mcp: [], connecting: false })).toMatchObject({
+      server: "bg-icon-critical-base",
+      trigger: "bg-icon-critical-base",
+    })
+  })
+})
diff --git a/packages/app/src/session/summary/indicator.ts b/packages/app/src/session/summary/indicator.ts
new file mode 100644
index 000000000000..8b4b9fb5de1a
--- /dev/null
+++ b/packages/app/src/session/summary/indicator.ts
@@ -0,0 +1,44 @@
+import type { McpServer } from "@opencode/client/promise"
+
+export function hasServiceNeedingAttention(statuses: Array<McpServer["status"]["status"]>) {
+  return statuses.some((status) => status === "needs_auth")
+}
+
+export function hasNonBlockingServiceIssue(statuses: Array<McpServer["status"]["status"]>) {
+  return statuses.some((status) => status !== "connected" && status !== "pending" && status !== "disabled")
+}
+
+export function serviceStatusDotClass(statuses: Array<McpServer["status"]["status"]>) {
+  if (hasServiceNeedingAttention(statuses)) return "bg-v2-background-bg-accent"
+  if (hasNonBlockingServiceIssue(statuses)) return "bg-icon-warning-base"
+}
+
+export function serverStatusDotClass(input: {
+  ready: boolean
+  serverHealth: boolean | undefined
+  connecting: boolean
+}) {
+  if (input.serverHealth === false) return "bg-icon-critical-base"
+  if (input.connecting) return "bg-border-weak-base animate-pulse"
+  if (!input.ready || input.serverHealth === undefined) return "bg-border-weak-base"
+  return "bg-icon-success-base"
+}
+
+export function summaryStatus(input: {
+  ready: boolean
+  serverHealth: boolean | undefined
+  mcp: Array<McpServer["status"]["status"]>
+  connecting: boolean
+}) {
+  const mcp = serviceStatusDotClass(input.mcp)
+  const server = serverStatusDotClass({
+    ready: input.ready,
+    serverHealth: input.serverHealth,
+    connecting: input.connecting,
+  })
+  return {
+    server,
+    mcp,
+    trigger: input.serverHealth === false ? server : mcp,
+  }
+}
diff --git a/packages/app/src/session/summary/popover.tsx b/packages/app/src/session/summary/popover.tsx
index a49eaede070c..fccb4744d4dd 100644
--- a/packages/app/src/session/summary/popover.tsx
+++ b/packages/app/src/session/summary/popover.tsx
@@ -3,16 +3,30 @@ import { Icon } from "@opencode/ui/icon"
 import { IconButton } from "@opencode/ui/icon-button"
 import { Keybind } from "@opencode/ui/keybind"
 import { Tooltip } from "@opencode/ui/tooltip"
-import { Show, type ParentProps } from "solid-js"
+import { createResource, Show, type ParentProps } from "solid-js"
 import { useLanguage } from "@/runtime/i18n/language"
+import { useData, useServer } from "@/runtime/server/current"
 import { useCommand } from "@/shell/commands/command"
+import { useSummaryStatus } from "./status"
 import "./summary.css"
 
 export function SummaryPopover(
-  props: ParentProps<{ active?: boolean; open: boolean; onOpenChange: (open: boolean) => void }>,
+  props: ParentProps<{ active?: boolean; directory?: string; open: boolean; onOpenChange: (open: boolean) => void }>,
 ) {
   const language = useLanguage()
   const command = useCommand()
+  const data = useData()
+  const server = useServer()
+  const status = useSummaryStatus(() => props.directory)
+  createResource(
+    () => {
+      const directory = props.directory
+      if (props.active === false || !directory || server.ctx.sdk.connection.status() !== "connected") return
+      if (data.location.mcp.server.list({ directory }) !== undefined) return
+      return directory
+    },
+    (directory) => data.location.mcp.server.sync({ directory }),
+  )
   // Cached timelines remain mounted; only the visible summary owns the command.
   command.register(() =>
     props.active === false
@@ -45,7 +59,20 @@ export function SummaryPopover(
       >
         <Popover.Trigger
           as={IconButton}
-          icon={<Icon name="window-analytics" />}
+          icon={
+            <span class="session-summary-trigger-icon">
+              <Icon name="window-analytics" />
+              <Show when={status().trigger}>
+                {(trigger) => (
+                  <span
+                    data-slot="status-indicator"
+                    class={`session-summary-trigger-status ${trigger()}`}
+                    aria-hidden="true"
+                  />
+                )}
+              </Show>
+            </span>
+          }
           variant="ghost-muted"
           size="large"
           state={props.open ? "pressed" : undefined}
diff --git a/packages/app/src/session/summary/server-panel.tsx b/packages/app/src/session/summary/server-panel.tsx
index 6e8e1e4626c0..7b13aa2b9fa3 100644
--- a/packages/app/src/session/summary/server-panel.tsx
+++ b/packages/app/src/session/summary/server-panel.tsx
@@ -27,6 +27,8 @@ import { showToast } from "@/shell/notifications/toast"
 import { pluginLabel } from "@/providers/catalog/plugin"
 import { useMcpToggle, type McpControls } from "@/providers/connect/mcp"
 import { configuredLsps } from "./configured-lsp"
+import { serviceStatusDotClass } from "./indicator"
+import { useSummaryStatus } from "./status"
 
 const services = [
   { type: "mcp", icon: "mcp", label: "session.summary.mcp" },
@@ -54,6 +56,7 @@ export function SessionServerPanel(props: { directory: string; shown: boolean; m
   const settings = useSettings()
   const contentID = createUniqueId()
   const expanded = settings.sessionSummary.serverExpanded
+  const status = useSummaryStatus(() => props.directory)
   const name = createMemo(() => {
     const servers = global.servers.list()
     if (servers.length < 2) return language.t("session.summary.server")
@@ -71,7 +74,14 @@ export function SessionServerPanel(props: { directory: string; shown: boolean; m
         aria-controls={contentID}
         onClick={() => settings.sessionSummary.setServerExpanded(!expanded())}
       >
-        <Icon name="server" class="shrink-0 text-v2-icon-icon-muted" />
+        <span class="session-summary-server-icon">
+          <Icon name="server" class="text-v2-icon-icon-muted" />
+          <span
+            data-slot="status-indicator"
+            class={`session-summary-server-status ${status().server}`}
+            aria-hidden="true"
+          />
+        </span>
         <span dir="auto" class="session-summary-label">
           {name()}
         </span>
@@ -173,6 +183,7 @@ function McpMenu(props: ServiceMenuProps) {
       a.name.localeCompare(b.name),
     ),
   )
+  const status = createMemo(() => serviceStatusDotClass(servers().map((server) => server.status.status)))
   const defaults = createMemo(() =>
     Object.fromEntries(
       (data.location.config.list({ directory: props.directory }) ?? []).flatMap((entry) =>
@@ -186,6 +197,7 @@ function McpMenu(props: ServiceMenuProps) {
   return (
     <ServicePopover
       {...props}
+      status={status()}
       loading={load.loading}
       ready={
         data.location.mcp.server.list({ directory: props.directory }) !== undefined &&
@@ -378,6 +390,7 @@ function ServicePopover(
     error: unknown
     retry: () => unknown
     children: JSX.Element
+    status?: string
   },
 ) {
   const language = useLanguage()
@@ -397,7 +410,12 @@ function ServicePopover(
       modal={false}
     >
       <Popover.Trigger as="button" type="button" class="session-summary-row">
-        <Icon name={props.service.icon} class="shrink-0 text-v2-icon-icon-muted" />
+        <span class="session-summary-service-icon">
+          <Icon name={props.service.icon} class="text-v2-icon-icon-muted" />
+          <Show when={props.status}>
+            {(status) => <span class={`session-summary-service-status ${status()}`} aria-hidden="true" />}
+          </Show>
+        </span>
         <span class="session-summary-label">{language.t(props.service.label)}</span>
         <Icon name="fill-triangle-down" class="session-summary-menu-indicator shrink-0 text-v2-icon-icon-muted" />
       </Popover.Trigger>
diff --git a/packages/app/src/session/summary/status.ts b/packages/app/src/session/summary/status.ts
new file mode 100644
index 000000000000..a953b1723120
--- /dev/null
+++ b/packages/app/src/session/summary/status.ts
@@ -0,0 +1,23 @@
+import { createMemo, type Accessor } from "solid-js"
+import { useData, useServer } from "@/runtime/server/current"
+import { summaryStatus } from "./indicator"
+
+export function useSummaryStatus(directory: Accessor<string | undefined>) {
+  const data = useData()
+  const server = useServer()
+  const mcp = () => {
+    const value = directory()
+    if (!value) return
+    return data.location.mcp.server.list({ directory: value })
+  }
+  return createMemo(() => {
+    const health = server.health?.healthy
+    const servers = mcp()
+    return summaryStatus({
+      ready: health === false || servers !== undefined,
+      serverHealth: health,
+      mcp: (servers ?? []).map((item) => item.status.status),
+      connecting: server.ctx.sdk.connection.status() !== "connected",
+    })
+  })
+}
diff --git a/packages/app/src/session/summary/summary.css b/packages/app/src/session/summary/summary.css
index f116aa61f8be..f60bdfb136cb 100644
--- a/packages/app/src/session/summary/summary.css
+++ b/packages/app/src/session/summary/summary.css
@@ -108,6 +108,31 @@
   flex-shrink: 0;
   color: var(--v2-icon-icon-muted);
 }
+.session-summary-trigger-icon,
+.session-summary-server-icon,
+.session-summary-service-icon {
+  position: relative;
+  width: 16px;
+  height: 16px;
+  flex-shrink: 0;
+}
+.session-summary-trigger-status,
+.session-summary-server-status,
+.session-summary-service-status {
+  position: absolute;
+  inset-block-start: -4px;
+  inset-inline-end: -4px;
+  width: 8px;
+  height: 8px;
+  border: 1px solid var(--v2-background-bg-base);
+  border-radius: 50%;
+}
+.session-summary-trigger-status {
+  border-color: var(--v2-background-bg-deep);
+}
+[data-color-scheme="dark"] :is(.session-summary-server-status, .session-summary-service-status) {
+  border-color: var(--v2-background-bg-layer-01);
+}
 .session-summary-heading[aria-expanded="false"] .session-summary-disclosure {
   transform: rotate(-90deg);
 }
diff --git a/packages/app/src/session/timeline/message-timeline.tsx b/packages/app/src/session/timeline/message-timeline.tsx
index be777019cc3b..77c4f3a515cb 100644
--- a/packages/app/src/session/timeline/message-timeline.tsx
+++ b/packages/app/src/session/timeline/message-timeline.tsx
@@ -546,7 +546,12 @@ function MessageTimelineView(
                     <SessionContextUsage placement="bottom" />
                     <Show when={!parentID() && project()}>
                       {(project) => (
-                        <SummaryPopover active={props.active} open={summaryOpen()} onOpenChange={setSummary}>
+                        <SummaryPopover
+                          active={props.active}
+                          directory={sessionDirectory()}
+                          open={summaryOpen()}
+                          onOpenChange={setSummary}
+                        >
                           <Suspense>
                             <SessionSummaryPanel
                               shown={summaryOpen()}