diff --git a/web/components/nav-main.test.mjs b/web/components/nav-main.test.mjs
new file mode 100644
index 0000000..e8525d4
--- /dev/null
+++ b/web/components/nav-main.test.mjs
@@ -0,0 +1,11 @@
+import assert from "node:assert/strict"
+import { readFile } from "node:fs/promises"
+import test from "node:test"
+
+const source = await readFile(new URL("./nav-main.tsx", import.meta.url), "utf8")
+
+test("dashboard nav items expose full labels when visual text is truncated", () => {
+  assert.match(source, /<span\s+title=\{title\}>\{title\}<\/span>/)
+  assert.match(source, /tooltip=\{item\.title\}/)
+  assert.match(source, /<span\s+title=\{item\.title\}>\{item\.title\}<\/span>/)
+})
diff --git a/web/components/nav-main.tsx b/web/components/nav-main.tsx
index 1aaf661..fc970e1 100644
--- a/web/components/nav-main.tsx
+++ b/web/components/nav-main.tsx
@@ -3,10 +3,9 @@
 import { ChevronRightIcon } from "lucide-react"
 import Link from "next/link"
 import { usePathname } from "next/navigation"
-import { useEffect, useState } from "react"
+import { useState } from "react"
 
 import {
-  dashboardNavSectionHasActiveItem,
   getDashboardNavSectionStorageKey,
   isDashboardNavItemActive,
   parseDashboardNavSectionOpenState,
@@ -42,7 +41,6 @@ export function NavMain({
   }>
 }) {
   const pathname = usePathname()
-  const hasActiveItem = dashboardNavSectionHasActiveItem(items, pathname)
   const storageKey = getDashboardNavSectionStorageKey(sectionKey)
   const [open, setOpen] = useState(() => {
     if (typeof window === "undefined") {
@@ -51,19 +49,6 @@ export function NavMain({
     return parseDashboardNavSectionOpenState(window.localStorage.getItem(storageKey)) ?? true
   })
 
-  useEffect(() => {
-    const storedOpen = parseDashboardNavSectionOpenState(
-      window.localStorage.getItem(storageKey)
-    )
-    if (storedOpen !== undefined) {
-      setOpen(storedOpen)
-      return
-    }
-    if (hasActiveItem) {
-      setOpen(true)
-    }
-  }, [hasActiveItem, storageKey])
-
   const handleOpenChange = (nextOpen: boolean) => {
     setOpen(nextOpen)
     window.localStorage.setItem(storageKey, String(nextOpen))
@@ -80,7 +65,7 @@ export function NavMain({
         >
           <CollapsibleTrigger render={<SidebarMenuButton tooltip={title} />}>
             {icon}
-            <span>{title}</span>
+            <span title={title}>{title}</span>
             <ChevronRightIcon className="ml-auto transition-transform duration-200 group-data-open/collapsible:rotate-90" />
           </CollapsibleTrigger>
           <CollapsibleContent>
@@ -90,8 +75,9 @@ export function NavMain({
                   <SidebarMenuSubButton
                     render={<Link href={item.url} />}
                     isActive={isDashboardNavItemActive(pathname, item.url)}
+                    tooltip={item.title}
                   >
-                    <span>{item.title}</span>
+                    <span title={item.title}>{item.title}</span>
                   </SidebarMenuSubButton>
                 </SidebarMenuSubItem>
               ))}
diff --git a/web/components/nav-secondary.tsx b/web/components/nav-secondary.tsx
index 285156c..d02905e 100644
--- a/web/components/nav-secondary.tsx
+++ b/web/components/nav-secondary.tsx
@@ -37,9 +37,10 @@ export function NavSecondary({
               <SidebarMenuButton
                 render={<Link href={item.url} />}
                 isActive={isActive(item.url)}
+                tooltip={item.title}
               >
                 {item.icon}
-                <span>{item.title}</span>
+                <span title={item.title}>{item.title}</span>
               </SidebarMenuButton>
             </SidebarMenuItem>
           ))}
diff --git a/web/components/ui/sidebar.tsx b/web/components/ui/sidebar.tsx
index 0c48440..475071d 100644
--- a/web/components/ui/sidebar.tsx
+++ b/web/components/ui/sidebar.tsx
@@ -668,14 +668,17 @@ function SidebarMenuSubButton({
   render,
   size = "md",
   isActive = false,
+  tooltip,
   className,
   ...props
 }: useRender.ComponentProps<"a"> &
   React.ComponentProps<"a"> & {
     size?: "sm" | "md"
     isActive?: boolean
+    tooltip?: string | React.ComponentProps<typeof TooltipContent>
   }) {
-  return useRender({
+  const { isMobile } = useSidebar()
+  const comp = useRender({
     defaultTagName: "a",
     props: mergeProps<"a">(
       {
@@ -686,7 +689,7 @@ function SidebarMenuSubButton({
       },
       props
     ),
-    render,
+    render: !tooltip ? render : <TooltipTrigger render={render} />,
     state: {
       slot: "sidebar-menu-sub-button",
       sidebar: "menu-sub-button",
@@ -694,6 +697,23 @@ function SidebarMenuSubButton({
       active: isActive,
     },
   })
+
+  if (!tooltip) {
+    return comp
+  }
+
+  if (typeof tooltip === "string") {
+    tooltip = {
+      children: tooltip,
+    }
+  }
+
+  return (
+    <Tooltip>
+      {comp}
+      <TooltipContent side="right" align="center" hidden={isMobile} {...tooltip} />
+    </Tooltip>
+  )
 }
 
 export {