refactor(ui): redesign SNMP profile editor for progressive disclosure

The profile editor was dumping everything on one page — MIB upload,
OID tree, poll groups, test panel — overwhelming for anyone who
doesn't live and breathe SNMP. Redesigned with tabbed layout:

- Basics tab: name, category, description (the 95% case)
- OIDs tab: flat table of what's collected, simple manual add
- Advanced tab: MIB upload, OID tree browser, auto-detection
- Test tab: test profile against live device (edit mode only)

Also added Clone action on built-in profiles — the primary way
to create a custom profile. Most users should never need the
Advanced tab at all.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/settings/SNMPProfileEditorPage.tsx

@@ -9,6 +9,9 @@ import {
   Loader2,
   X,
   Network,
+  Copy,
+  ChevronDown,
+  ChevronRight,
 } from 'lucide-react'
 import {
   snmpProfilesApi,
@@ -29,6 +32,7 @@ import {
   SelectTrigger,
   SelectValue,
 } from '@/components/ui/select'
+import { Tabs, TabsList, TabsTrigger, TabsContent } from '@/components/ui/tabs'
 import { EmptyState } from '@/components/ui/empty-state'
 import { OIDTreeBrowser } from '@/components/settings/OIDTreeBrowser'
 import { ProfileTestPanel } from '@/components/settings/ProfileTestPanel'
@@ -67,9 +71,9 @@ const CATEGORIES = [
 ] as const
 
 const DEFAULT_POLL_GROUPS: Record<PollGroupKey, PollGroup> = {
-  fast: { interval_multiplier: 1, label: 'Fast (60s)', scalars: [], tables: [] },
-  standard: { interval_multiplier: 5, label: 'Standard (5m)', scalars: [], tables: [] },
-  slow: { interval_multiplier: 30, label: 'Slow (30m)', scalars: [], tables: [] },
+  fast: { interval_multiplier: 1, label: 'Fast (every poll)', scalars: [], tables: [] },
+  standard: { interval_multiplier: 5, label: 'Standard (5x interval)', scalars: [], tables: [] },
+  slow: { interval_multiplier: 30, label: 'Slow (30x interval)', scalars: [], tables: [] },
 }
 
 function buildEmptyPollGroups(): Record<PollGroupKey, PollGroup> {
@@ -85,188 +89,98 @@ function buildEmptyPollGroups(): Record<PollGroupKey, PollGroup> {
 function ProfileCard({
   profile,
   onEdit,
+  onClone,
   onDelete,
   canModify,
 }: {
   profile: SNMPProfileResponse
   onEdit: (profile: SNMPProfileResponse) => void
+  onClone: (profile: SNMPProfileResponse) => void
   onDelete: (profileId: string) => void
   canModify: boolean
 }) {
   return (
-    <div className="flex items-center justify-between py-2 px-3 rounded-sm border border-border bg-panel">
+    <div className="flex items-center justify-between py-2.5 px-3 rounded-sm border border-border bg-panel group hover:border-border-hover transition-colors">
       <div className="flex items-center gap-3 min-w-0">
         <div>
           <div className="flex items-center gap-2">
             <span className="text-sm font-medium text-text-primary">{profile.name}</span>
             {profile.is_system && (
               <Badge variant="outline" className="text-[10px] px-1.5 py-0">
-                system
+                built-in
               </Badge>
             )}
+            {profile.category && profile.category !== 'generic' && (
+              <span className="text-[10px] text-text-muted capitalize">{profile.category}</span>
+            )}
           </div>
           {profile.description && (
-            <div className="text-xs text-text-muted truncate max-w-[400px]">
+            <div className="text-xs text-text-muted truncate max-w-[450px] mt-0.5">
               {profile.description}
             </div>
           )}
         </div>
       </div>
-      <div className="flex items-center gap-3 flex-shrink-0">
-        <span className="text-xs text-text-muted">
-          {profile.device_count} device{profile.device_count !== 1 ? 's' : ''}
-        </span>
-        {canModify && !profile.is_system && (
-          <>
-            <Button
-              variant="ghost"
-              size="icon"
-              className="h-7 w-7"
-              onClick={() => onEdit(profile)}
-            >
-              <Pencil className="h-3.5 w-3.5" />
-            </Button>
-            <Button
-              variant="ghost"
-              size="icon"
-              className="h-7 w-7 text-error"
-              onClick={() => onDelete(profile.id)}
-            >
-              <Trash2 className="h-3.5 w-3.5" />
-            </Button>
-          </>
+      <div className="flex items-center gap-2 flex-shrink-0">
+        {profile.device_count > 0 && (
+          <span className="text-[10px] text-text-muted tabular-nums">
+            {profile.device_count} device{profile.device_count !== 1 ? 's' : ''}
+          </span>
+        )}
+        {canModify && (
+          <div className="flex items-center gap-1 opacity-0 group-hover:opacity-100 transition-opacity">
+            {profile.is_system ? (
+              <Button
+                variant="ghost"
+                size="sm"
+                className="h-6 text-[10px] gap-1 px-2"
+                onClick={() => onClone(profile)}
+                title="Clone this profile to customize it"
+              >
+                <Copy className="h-3 w-3" />
+                Clone
+              </Button>
+            ) : (
+              <>
+                <Button variant="ghost" size="icon" className="h-6 w-6" onClick={() => onEdit(profile)}>
+                  <Pencil className="h-3 w-3" />
+                </Button>
+                <Button variant="ghost" size="icon" className="h-6 w-6 text-error" onClick={() => onDelete(profile.id)}>
+                  <Trash2 className="h-3 w-3" />
+                </Button>
+              </>
+            )}
+          </div>
         )}
       </div>
     </div>
   )
 }
 
-// ─── Manual OID Add Row ─────────────────────────────────────────────────────
+// ─── OID Table Row ──────────────────────────────────────────────────────────
 
-function ManualOIDAddRow({
-  onAdd,
+function OIDRow({
+  oid,
+  groupLabel,
+  onRemove,
 }: {
-  onAdd: (oid: PollGroupOID) => void
-}) {
-  const [oid, setOid] = useState('')
-  const [name, setName] = useState('')
-  const [type, setType] = useState('gauge32')
-
-  function handleAdd() {
-    if (!oid.trim() || !name.trim()) return
-    onAdd({ oid: oid.trim(), name: name.trim(), type })
-    setOid('')
-    setName('')
-    setType('gauge32')
-  }
-
-  return (
-    <div className="flex items-end gap-2 mt-2">
-      <div className="flex-1">
-        <Label className="text-[10px] text-text-muted">OID</Label>
-        <Input
-          value={oid}
-          onChange={(e) => setOid(e.target.value)}
-          placeholder="1.3.6.1.2.1..."
-          className="h-7 text-xs"
-        />
-      </div>
-      <div className="flex-1">
-        <Label className="text-[10px] text-text-muted">Name</Label>
-        <Input
-          value={name}
-          onChange={(e) => setName(e.target.value)}
-          placeholder="metric_name"
-          className="h-7 text-xs"
-        />
-      </div>
-      <div className="w-28">
-        <Label className="text-[10px] text-text-muted">Type</Label>
-        <Select value={type} onValueChange={setType}>
-          <SelectTrigger className="h-7 text-xs">
-            <SelectValue />
-          </SelectTrigger>
-          <SelectContent>
-            <SelectItem value="gauge32">Gauge32</SelectItem>
-            <SelectItem value="counter32">Counter32</SelectItem>
-            <SelectItem value="counter64">Counter64</SelectItem>
-            <SelectItem value="integer">Integer</SelectItem>
-            <SelectItem value="string">String</SelectItem>
-            <SelectItem value="timeticks">TimeTicks</SelectItem>
-          </SelectContent>
-        </Select>
-      </div>
-      <Button size="sm" variant="outline" className="h-7 text-xs" onClick={handleAdd}>
-        <Plus className="h-3 w-3" />
-      </Button>
-    </div>
-  )
-}
-
-// ─── Poll Group Section ─────────────────────────────────────────────────────
-
-function PollGroupSection({
-  groupKey,
-  group,
-  isActive,
-  onSetActive,
-  onRemoveOid,
-  onAddOid,
-}: {
-  groupKey: PollGroupKey
-  group: PollGroup
-  isActive: boolean
-  onSetActive: () => void
-  onRemoveOid: (groupKey: PollGroupKey, index: number) => void
-  onAddOid: (groupKey: PollGroupKey, oid: PollGroupOID) => void
+  oid: PollGroupOID
+  groupLabel: string
+  onRemove: () => void
 }) {
   return (
-    <div
-      className={`rounded-sm border px-3 py-2 ${isActive ? 'border-accent bg-accent/5' : 'border-border bg-panel'}`}
-    >
-      <div className="flex items-center justify-between mb-1">
-        <button
-          type="button"
-          className="text-sm font-medium text-text-secondary hover:text-text-primary"
-          onClick={onSetActive}
-        >
-          {group.label}
-          {isActive && (
-            <span className="ml-2 text-[10px] text-accent font-normal">
-              (active -- tree selections go here)
-            </span>
-          )}
-        </button>
-        <span className="text-[10px] text-text-muted">
-          {group.scalars.length} OID{group.scalars.length !== 1 ? 's' : ''}
-        </span>
-      </div>
-      {group.scalars.length > 0 && (
-        <div className="space-y-0.5">
-          {group.scalars.map((s, i) => (
-            <div
-              key={`${s.oid}-${i}`}
-              className="flex items-center justify-between gap-2 text-xs py-0.5"
-            >
-              <span className="font-mono text-text-primary truncate">{s.name}</span>
-              <span className="font-mono text-text-muted text-[10px] truncate flex-shrink-0">
-                {s.oid}
-              </span>
-              <span className="text-[10px] bg-surface-raised px-1 py-0.5 rounded flex-shrink-0">
-                {s.type}
-              </span>
-              <button
-                type="button"
-                className="text-text-muted hover:text-error flex-shrink-0"
-                onClick={() => onRemoveOid(groupKey, i)}
-              >
-                <X className="h-3 w-3" />
-              </button>
-            </div>
-          ))}
-        </div>
-      )}
-      <ManualOIDAddRow onAdd={(oid) => onAddOid(groupKey, oid)} />
+    <div className="flex items-center gap-3 py-1 px-2 text-xs group/row hover:bg-elevated/30 rounded-sm">
+      <span className="font-mono text-text-primary w-40 truncate" title={oid.name}>{oid.name}</span>
+      <span className="font-mono text-text-muted text-[10px] flex-1 truncate" title={oid.oid}>{oid.oid}</span>
+      <span className="text-[10px] text-text-muted w-16 text-right">{oid.type}</span>
+      <span className="text-[10px] text-text-muted w-20 text-right">{groupLabel}</span>
+      <button
+        type="button"
+        className="text-text-muted hover:text-error opacity-0 group-hover/row:opacity-100 transition-opacity flex-shrink-0"
+        onClick={onRemove}
+      >
+        <X className="h-3 w-3" />
+      </button>
     </div>
   )
 }
@@ -294,12 +208,20 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
   const [pollGroups, setPollGroups] = useState<Record<PollGroupKey, PollGroup>>(buildEmptyPollGroups)
   const [activePollGroup, setActivePollGroup] = useState<PollGroupKey>('standard')
   const [selectedOids, setSelectedOids] = useState<Set<string>>(new Set())
+  const [advancedOpen, setAdvancedOpen] = useState(false)
 
   // ─── MIB state ─────────────────────────────────────────────────────────
 
   const [parsedNodes, setParsedNodes] = useState<OIDNode[]>([])
   const [parsedModuleName, setParsedModuleName] = useState<string | null>(null)
 
+  // ─── Manual OID add state ──────────────────────────────────────────────
+
+  const [manualOid, setManualOid] = useState('')
+  const [manualName, setManualName] = useState('')
+  const [manualType, setManualType] = useState('gauge32')
+  const [manualGroup, setManualGroup] = useState<PollGroupKey>('standard')
+
   // ─── Data query ────────────────────────────────────────────────────────
 
   const { data: profiles, isLoading } = useQuery({
@@ -323,7 +245,7 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     onError: (err: unknown) => {
       const detail =
         (err as { response?: { data?: { detail?: string } } })?.response?.data?.detail ??
-        'Failed to parse MIB file'
+        'Failed to parse MIB file. Make sure dependencies are available.'
       toast.error(detail)
     },
   })
@@ -375,6 +297,9 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     setSelectedOids(new Set())
     setParsedNodes([])
     setParsedModuleName(null)
+    setAdvancedOpen(false)
+    setManualOid('')
+    setManualName('')
   }
 
   function openCreate() {
@@ -382,15 +307,13 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     setView('edit')
   }
 
-  function openEdit(profile: SNMPProfileResponse) {
-    setEditingProfileId(profile.id)
-    setName(profile.name)
+  function openClone(profile: SNMPProfileResponse) {
+    resetAndGoToList()
+    setName(`${profile.name} (custom)`)
     setDescription(profile.description ?? '')
-    setVendor('')
-    setCategory('generic')
-    setSysObjectId('')
+    setCategory(profile.category ?? 'generic')
 
-    // Parse existing profile_data poll groups
+    // Copy OIDs from the system profile
     const pd = profile.profile_data as {
       poll_groups?: Record<string, { interval_multiplier: number; scalars: PollGroupOID[]; tables: unknown[] }>
     } | null
@@ -407,8 +330,41 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
         }
       }
       setPollGroups(groups)
+      const oids = new Set<string>()
+      for (const g of Object.values(groups)) {
+        for (const s of g.scalars) oids.add(s.oid)
+      }
+      setSelectedOids(oids)
+    }
 
-      // Rebuild selected OIDs set from existing poll groups
+    setView('edit')
+    toast.info(`Cloned from "${profile.name}" — customize and save as your own`)
+  }
+
+  function openEdit(profile: SNMPProfileResponse) {
+    setEditingProfileId(profile.id)
+    setName(profile.name)
+    setDescription(profile.description ?? '')
+    setVendor('')
+    setCategory(profile.category ?? 'generic')
+    setSysObjectId(profile.sys_object_id ?? '')
+
+    const pd = profile.profile_data as {
+      poll_groups?: Record<string, { interval_multiplier: number; scalars: PollGroupOID[]; tables: unknown[] }>
+    } | null
+    if (pd?.poll_groups) {
+      const groups = buildEmptyPollGroups()
+      for (const key of ['fast', 'standard', 'slow'] as PollGroupKey[]) {
+        if (pd.poll_groups[key]) {
+          groups[key] = {
+            ...groups[key],
+            interval_multiplier: pd.poll_groups[key].interval_multiplier,
+            scalars: pd.poll_groups[key].scalars ?? [],
+            tables: pd.poll_groups[key].tables ?? [],
+          }
+        }
+      }
+      setPollGroups(groups)
       const oids = new Set<string>()
       for (const g of Object.values(groups)) {
         for (const s of g.scalars) oids.add(s.oid)
@@ -422,6 +378,7 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     setParsedNodes([])
     setParsedModuleName(null)
     setActivePollGroup('standard')
+    setAdvancedOpen(false)
     setView('edit')
   }
 
@@ -436,7 +393,6 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     if (file) {
       parseMibMutation.mutate(file)
     }
-    // Reset input so re-uploading the same file works
     if (fileInputRef.current) fileInputRef.current.value = ''
   }
 
@@ -446,28 +402,20 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
         const next = new Set(prev)
         if (next.has(oid)) {
           next.delete(oid)
-          // Remove from whichever poll group contains it
           setPollGroups((pg) => {
             const updated = { ...pg }
             for (const key of ['fast', 'standard', 'slow'] as PollGroupKey[]) {
-              updated[key] = {
-                ...updated[key],
-                scalars: updated[key].scalars.filter((s) => s.oid !== oid),
-              }
+              updated[key] = { ...updated[key], scalars: updated[key].scalars.filter((s) => s.oid !== oid) }
             }
             return updated
           })
         } else {
           next.add(oid)
-          // Add to the active poll group
           setPollGroups((pg) => ({
             ...pg,
             [activePollGroup]: {
               ...pg[activePollGroup],
-              scalars: [
-                ...pg[activePollGroup].scalars,
-                { oid, name: node.name, type: node.type ?? 'string' },
-              ],
+              scalars: [...pg[activePollGroup].scalars, { oid, name: node.name, type: node.type ?? 'string' }],
             },
           }))
         }
@@ -482,12 +430,8 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
       const removed = pg[groupKey].scalars[index]
       const updated = {
         ...pg,
-        [groupKey]: {
-          ...pg[groupKey],
-          scalars: pg[groupKey].scalars.filter((_, i) => i !== index),
-        },
+        [groupKey]: { ...pg[groupKey], scalars: pg[groupKey].scalars.filter((_, i) => i !== index) },
       }
-      // Also remove from selected set
       if (removed) {
         setSelectedOids((prev) => {
           const next = new Set(prev)
@@ -499,15 +443,17 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     })
   }
 
-  function handleManualAdd(groupKey: PollGroupKey, oid: PollGroupOID) {
+  function handleManualAdd() {
+    if (!manualOid.trim() || !manualName.trim()) return
+    const oid: PollGroupOID = { oid: manualOid.trim(), name: manualName.trim(), type: manualType }
     setPollGroups((pg) => ({
       ...pg,
-      [groupKey]: {
-        ...pg[groupKey],
-        scalars: [...pg[groupKey].scalars, oid],
-      },
+      [manualGroup]: { ...pg[manualGroup], scalars: [...pg[manualGroup].scalars, oid] },
     }))
     setSelectedOids((prev) => new Set(prev).add(oid.oid))
+    setManualOid('')
+    setManualName('')
+    setManualType('gauge32')
   }
 
   function handleSave() {
@@ -519,28 +465,13 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     const profileData: Record<string, unknown> = {
       version: 1,
       poll_groups: {
-        fast: {
-          interval_multiplier: pollGroups.fast.interval_multiplier,
-          scalars: pollGroups.fast.scalars,
-          tables: pollGroups.fast.tables,
-        },
-        standard: {
-          interval_multiplier: pollGroups.standard.interval_multiplier,
-          scalars: pollGroups.standard.scalars,
-          tables: pollGroups.standard.tables,
-        },
-        slow: {
-          interval_multiplier: pollGroups.slow.interval_multiplier,
-          scalars: pollGroups.slow.scalars,
-          tables: pollGroups.slow.tables,
-        },
+        fast: { interval_multiplier: pollGroups.fast.interval_multiplier, scalars: pollGroups.fast.scalars, tables: pollGroups.fast.tables },
+        standard: { interval_multiplier: pollGroups.standard.interval_multiplier, scalars: pollGroups.standard.scalars, tables: pollGroups.standard.tables },
+        slow: { interval_multiplier: pollGroups.slow.interval_multiplier, scalars: pollGroups.slow.scalars, tables: pollGroups.slow.tables },
       },
     }
 
-    const payload: SNMPProfileCreate = {
-      name: name.trim(),
-      profile_data: profileData,
-    }
+    const payload: SNMPProfileCreate = { name: name.trim(), profile_data: profileData }
     if (description.trim()) payload.description = description.trim()
     if (vendor.trim()) payload.vendor = vendor.trim()
     if (category !== 'generic') payload.category = category
@@ -549,6 +480,15 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
     saveMutation.mutate(payload)
   }
 
+  // ─── Computed: all OIDs across groups for the flat table ───────────────
+
+  const allOids: { oid: PollGroupOID; groupKey: PollGroupKey; groupLabel: string; index: number }[] = []
+  for (const key of ['fast', 'standard', 'slow'] as PollGroupKey[]) {
+    pollGroups[key].scalars.forEach((oid, index) => {
+      allOids.push({ oid, groupKey: key, groupLabel: pollGroups[key].label, index })
+    })
+  }
+
   // ─── Loading state ────────────────────────────────────────────────────
 
   if (isLoading) {
@@ -556,7 +496,6 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
       <div className="space-y-6 max-w-4xl">
         <div className="h-8 w-48 bg-elevated/50 rounded animate-pulse" />
         <div className="h-24 bg-elevated/50 rounded animate-pulse" />
-        <div className="h-24 bg-elevated/50 rounded animate-pulse" />
       </div>
     )
   }
@@ -566,12 +505,11 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
   if (view === 'list') {
     return (
       <div className="space-y-6 max-w-4xl">
-        {/* Header */}
         <div className="flex items-center justify-between">
           <div>
             <h1 className="text-lg font-semibold">SNMP Profiles</h1>
             <p className="text-sm text-text-muted mt-0.5">
-              Manage SNMP polling profiles for device monitoring
+              Control what gets collected from each type of SNMP device
             </p>
           </div>
           {userCanWrite && (
@@ -581,19 +519,18 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
           )}
         </div>
 
-        {/* System profiles */}
+        {/* Built-in profiles */}
         {systemProfiles.length > 0 && (
           <div>
-            <h2 className="text-sm font-medium text-text-secondary mb-2">System Profiles</h2>
-            <div className="space-y-1.5">
+            <h2 className="text-xs font-medium text-text-muted uppercase tracking-wider mb-2">
+              Built-in Profiles
+            </h2>
+            <p className="text-xs text-text-muted mb-3">
+              Ready to use. Clone one to customize it for your specific hardware.
+            </p>
+            <div className="space-y-1">
               {systemProfiles.map((p) => (
-                <ProfileCard
-                  key={p.id}
-                  profile={p}
-                  onEdit={openEdit}
-                  onDelete={handleDelete}
-                  canModify={false}
-                />
+                <ProfileCard key={p.id} profile={p} onEdit={openEdit} onClone={openClone} onDelete={handleDelete} canModify={userCanWrite} />
               ))}
             </div>
           </div>
@@ -601,24 +538,21 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
 
         {/* Custom profiles */}
         <div>
-          <h2 className="text-sm font-medium text-text-secondary mb-2">Custom Profiles</h2>
-          <div className="space-y-1.5">
+          <h2 className="text-xs font-medium text-text-muted uppercase tracking-wider mb-2">
+            Custom Profiles
+          </h2>
+          <div className="space-y-1">
             {customProfiles.length === 0 ? (
-              <EmptyState
-                icon={Network}
-                title="No custom profiles"
-                description="Create a custom SNMP profile to monitor vendor-specific OIDs"
-                action={userCanWrite ? { label: 'New Profile', onClick: openCreate } : undefined}
-              />
+              <div className="rounded-sm border border-border border-dashed bg-panel/50 px-4 py-6 text-center">
+                <Network className="h-5 w-5 text-text-muted mx-auto mb-2" />
+                <p className="text-sm text-text-muted">No custom profiles yet</p>
+                <p className="text-xs text-text-muted mt-1">
+                  Clone a built-in profile above, or create one from scratch
+                </p>
+              </div>
             ) : (
               customProfiles.map((p) => (
-                <ProfileCard
-                  key={p.id}
-                  profile={p}
-                  onEdit={openEdit}
-                  onDelete={handleDelete}
-                  canModify={userCanWrite}
-                />
+                <ProfileCard key={p.id} profile={p} onEdit={openEdit} onClone={openClone} onDelete={handleDelete} canModify={userCanWrite} />
               ))
             )}
           </div>
@@ -632,169 +566,200 @@ export function SNMPProfileEditorPage({ tenantId }: SNMPProfileEditorPageProps)
   return (
     <div className="space-y-4 max-w-4xl">
       {/* Header */}
-      <div className="flex items-center gap-3">
-        <Button variant="ghost" size="icon" className="h-7 w-7" onClick={resetAndGoToList}>
-          <ArrowLeft className="h-4 w-4" />
-        </Button>
-        <h1 className="text-lg font-semibold">
-          {editingProfileId ? 'Edit SNMP Profile' : 'New SNMP Profile'}
-        </h1>
-      </div>
-
-      {/* Profile Fields */}
-      <div className="rounded-sm border border-border bg-panel px-3 py-3 space-y-3">
-        <div className="grid grid-cols-2 gap-3">
-          <div>
-            <Label className="text-xs">
-              Profile Name <span className="text-error">*</span>
-            </Label>
-            <Input
-              value={name}
-              onChange={(e) => setName(e.target.value)}
-              placeholder="e.g. Ubiquiti EdgeSwitch"
-              className="mt-1"
-            />
-          </div>
-          <div>
-            <Label className="text-xs">
-              Category
-            </Label>
-            <Select value={category} onValueChange={setCategory}>
-              <SelectTrigger className="mt-1">
-                <SelectValue />
-              </SelectTrigger>
-              <SelectContent>
-                {CATEGORIES.map((c) => (
-                  <SelectItem key={c.value} value={c.value}>
-                    {c.label}
-                  </SelectItem>
-                ))}
-              </SelectContent>
-            </Select>
-          </div>
-        </div>
-
-        <div>
-          <Label className="text-xs">
-            Description <span className="text-text-muted font-normal">(optional)</span>
-          </Label>
-          <Input
-            value={description}
-            onChange={(e) => setDescription(e.target.value)}
-            placeholder="Brief description of this profile"
-            className="mt-1"
-          />
-        </div>
-
-        <div className="grid grid-cols-2 gap-3">
-          <div>
-            <Label className="text-xs">
-              Vendor <span className="text-text-muted font-normal">(optional)</span>
-            </Label>
-            <Input
-              value={vendor}
-              onChange={(e) => setVendor(e.target.value)}
-              placeholder="e.g. Ubiquiti"
-              className="mt-1"
-            />
-          </div>
-          <div>
-            <Label className="text-xs">
-              sysObjectID <span className="text-text-muted font-normal">(optional)</span>
-            </Label>
-            <Input
-              value={sysObjectId}
-              onChange={(e) => setSysObjectId(e.target.value)}
-              placeholder="1.3.6.1.4.1...."
-              className="mt-1"
-            />
-          </div>
-        </div>
-      </div>
-
-      {/* MIB Upload */}
-      <div className="rounded-sm border border-border bg-panel px-3 py-3 space-y-3">
-        <div className="flex items-center justify-between">
-          <h2 className="text-sm font-medium text-text-secondary">MIB Upload</h2>
-          {parsedModuleName && (
-            <span className="text-xs text-text-muted">
-              Module: {parsedModuleName}
-            </span>
-          )}
-        </div>
+      <div className="flex items-center justify-between">
         <div className="flex items-center gap-3">
-          <input
-            ref={fileInputRef}
-            type="file"
-            accept=".mib,.txt,.my"
-            className="hidden"
-            onChange={handleFileUpload}
-          />
-          <Button
-            variant="outline"
-            size="sm"
-            onClick={() => fileInputRef.current?.click()}
-            disabled={parseMibMutation.isPending}
-          >
-            {parseMibMutation.isPending ? (
-              <Loader2 className="h-3.5 w-3.5 animate-spin" />
-            ) : (
-              <Upload className="h-3.5 w-3.5" />
-            )}
-            {parseMibMutation.isPending ? 'Parsing...' : 'Upload MIB'}
+          <Button variant="ghost" size="icon" className="h-7 w-7" onClick={resetAndGoToList}>
+            <ArrowLeft className="h-4 w-4" />
           </Button>
-          <p className="text-xs text-text-muted">
-            Upload a vendor MIB file (.mib, .txt, .my) to browse and select OIDs
-          </p>
+          <h1 className="text-lg font-semibold">
+            {editingProfileId ? 'Edit Profile' : 'New SNMP Profile'}
+          </h1>
         </div>
+        <div className="flex items-center gap-2">
+          <Button variant="outline" size="sm" onClick={resetAndGoToList}>Cancel</Button>
+          <Button size="sm" onClick={handleSave} disabled={!name.trim() || saveMutation.isPending}>
+            {saveMutation.isPending ? 'Saving...' : editingProfileId ? 'Save Changes' : 'Create Profile'}
+          </Button>
+        </div>
+      </div>
 
-        {parsedNodes.length > 0 && (
-          <OIDTreeBrowser
-            nodes={parsedNodes}
-            selectedOids={selectedOids}
-            onToggleOid={handleToggleOid}
-          />
+      <Tabs defaultValue="basics" className="w-full">
+        <TabsList>
+          <TabsTrigger value="basics">Basics</TabsTrigger>
+          <TabsTrigger value="oids">
+            OIDs{allOids.length > 0 && ` (${allOids.length})`}
+          </TabsTrigger>
+          <TabsTrigger value="advanced">Advanced</TabsTrigger>
+          {editingProfileId && <TabsTrigger value="test">Test</TabsTrigger>}
+        </TabsList>
+
+        {/* ── Basics Tab ─────────────────────────────────────────────── */}
+        <TabsContent value="basics" className="mt-4 space-y-4">
+          <div className="rounded-sm border border-border bg-panel px-4 py-4 space-y-4">
+            <div className="grid grid-cols-2 gap-4">
+              <div>
+                <Label className="text-xs">Profile Name <span className="text-error">*</span></Label>
+                <Input value={name} onChange={(e) => setName(e.target.value)} placeholder="e.g. Ubiquiti EdgeSwitch" className="mt-1" />
+              </div>
+              <div>
+                <Label className="text-xs">Category</Label>
+                <Select value={category} onValueChange={setCategory}>
+                  <SelectTrigger className="mt-1"><SelectValue /></SelectTrigger>
+                  <SelectContent>
+                    {CATEGORIES.map((c) => <SelectItem key={c.value} value={c.value}>{c.label}</SelectItem>)}
+                  </SelectContent>
+                </Select>
+              </div>
+            </div>
+            <div>
+              <Label className="text-xs">Description</Label>
+              <Input value={description} onChange={(e) => setDescription(e.target.value)} placeholder="What this profile monitors" className="mt-1" />
+            </div>
+          </div>
+        </TabsContent>
+
+        {/* ── OIDs Tab ───────────────────────────────────────────────── */}
+        <TabsContent value="oids" className="mt-4 space-y-4">
+          {/* OID table */}
+          <div className="rounded-sm border border-border bg-panel">
+            {allOids.length === 0 ? (
+              <div className="px-4 py-8 text-center">
+                <p className="text-sm text-text-muted">No OIDs configured</p>
+                <p className="text-xs text-text-muted mt-1">Add OIDs manually below, or use the Advanced tab to upload a vendor MIB file</p>
+              </div>
+            ) : (
+              <div>
+                <div className="flex items-center gap-3 px-3 py-1.5 text-[10px] uppercase tracking-wider text-text-muted border-b border-border">
+                  <span className="w-40">Name</span>
+                  <span className="flex-1">OID</span>
+                  <span className="w-16 text-right">Type</span>
+                  <span className="w-20 text-right">Interval</span>
+                  <span className="w-4" />
+                </div>
+                <div className="max-h-[400px] overflow-y-auto">
+                  {allOids.map(({ oid, groupKey, groupLabel, index }) => (
+                    <OIDRow key={`${groupKey}-${oid.oid}-${index}`} oid={oid} groupLabel={groupLabel} onRemove={() => handleRemoveOid(groupKey, index)} />
+                  ))}
+                </div>
+              </div>
+            )}
+          </div>
+
+          {/* Quick add */}
+          <div className="rounded-sm border border-border bg-panel px-3 py-3">
+            <h3 className="text-xs font-medium text-text-secondary mb-2">Add OID</h3>
+            <div className="flex items-end gap-2">
+              <div className="flex-1">
+                <Label className="text-[10px] text-text-muted">OID</Label>
+                <Input value={manualOid} onChange={(e) => setManualOid(e.target.value)} placeholder="1.3.6.1.2.1..." className="h-7 text-xs mt-0.5" />
+              </div>
+              <div className="flex-1">
+                <Label className="text-[10px] text-text-muted">Name</Label>
+                <Input value={manualName} onChange={(e) => setManualName(e.target.value)} placeholder="metric_name" className="h-7 text-xs mt-0.5" onKeyDown={(e) => e.key === 'Enter' && handleManualAdd()} />
+              </div>
+              <div className="w-24">
+                <Label className="text-[10px] text-text-muted">Type</Label>
+                <Select value={manualType} onValueChange={setManualType}>
+                  <SelectTrigger className="h-7 text-xs mt-0.5"><SelectValue /></SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="gauge32">Gauge</SelectItem>
+                    <SelectItem value="counter32">Counter32</SelectItem>
+                    <SelectItem value="counter64">Counter64</SelectItem>
+                    <SelectItem value="integer">Integer</SelectItem>
+                    <SelectItem value="string">String</SelectItem>
+                    <SelectItem value="timeticks">TimeTicks</SelectItem>
+                  </SelectContent>
+                </Select>
+              </div>
+              <div className="w-24">
+                <Label className="text-[10px] text-text-muted">Interval</Label>
+                <Select value={manualGroup} onValueChange={(v) => setManualGroup(v as PollGroupKey)}>
+                  <SelectTrigger className="h-7 text-xs mt-0.5"><SelectValue /></SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="fast">Fast</SelectItem>
+                    <SelectItem value="standard">Standard</SelectItem>
+                    <SelectItem value="slow">Slow</SelectItem>
+                  </SelectContent>
+                </Select>
+              </div>
+              <Button size="sm" variant="outline" className="h-7 text-xs" onClick={handleManualAdd} disabled={!manualOid.trim() || !manualName.trim()}>
+                <Plus className="h-3 w-3" /> Add
+              </Button>
+            </div>
+          </div>
+        </TabsContent>
+
+        {/* ── Advanced Tab ───────────────────────────────────────────── */}
+        <TabsContent value="advanced" className="mt-4 space-y-4">
+          {/* Auto-detection fields */}
+          <div className="rounded-sm border border-border bg-panel px-4 py-4 space-y-4">
+            <h3 className="text-xs font-medium text-text-secondary">Auto-Detection</h3>
+            <p className="text-xs text-text-muted -mt-2">
+              If set, TOD will automatically assign this profile when a device's sysObjectID matches the prefix below.
+            </p>
+            <div className="grid grid-cols-2 gap-4">
+              <div>
+                <Label className="text-xs">sysObjectID Prefix</Label>
+                <Input value={sysObjectId} onChange={(e) => setSysObjectId(e.target.value)} placeholder="1.3.6.1.4.1.41112" className="mt-1 font-mono text-xs" />
+              </div>
+              <div>
+                <Label className="text-xs">Vendor</Label>
+                <Input value={vendor} onChange={(e) => setVendor(e.target.value)} placeholder="e.g. Ubiquiti" className="mt-1" />
+              </div>
+            </div>
+          </div>
+
+          {/* MIB Upload */}
+          <div className="rounded-sm border border-border bg-panel px-4 py-4 space-y-3">
+            <div className="flex items-center justify-between">
+              <div>
+                <h3 className="text-xs font-medium text-text-secondary">MIB Browser</h3>
+                <p className="text-xs text-text-muted mt-0.5">
+                  Upload a vendor MIB file to browse OIDs visually. Standard MIBs (IF-MIB, HOST-RESOURCES, etc.) are pre-loaded.
+                </p>
+              </div>
+              {parsedModuleName && (
+                <Badge variant="outline" className="text-[10px]">
+                  {parsedModuleName}
+                </Badge>
+              )}
+            </div>
+            <div className="flex items-center gap-3">
+              <input ref={fileInputRef} type="file" accept=".mib,.txt,.my" className="hidden" onChange={handleFileUpload} />
+              <Button variant="outline" size="sm" onClick={() => fileInputRef.current?.click()} disabled={parseMibMutation.isPending}>
+                {parseMibMutation.isPending ? <Loader2 className="h-3.5 w-3.5 animate-spin" /> : <Upload className="h-3.5 w-3.5" />}
+                {parseMibMutation.isPending ? 'Parsing...' : 'Upload MIB'}
+              </Button>
+            </div>
+
+            {parsedNodes.length > 0 && (
+              <div className="mt-2">
+                <div className="flex items-center gap-3 mb-2">
+                  <span className="text-xs text-text-muted">
+                    Selecting OIDs adds them to:
+                  </span>
+                  <Select value={activePollGroup} onValueChange={(v) => setActivePollGroup(v as PollGroupKey)}>
+                    <SelectTrigger className="h-6 w-32 text-xs"><SelectValue /></SelectTrigger>
+                    <SelectContent>
+                      <SelectItem value="fast">Fast interval</SelectItem>
+                      <SelectItem value="standard">Standard interval</SelectItem>
+                      <SelectItem value="slow">Slow interval</SelectItem>
+                    </SelectContent>
+                  </Select>
+                </div>
+                <OIDTreeBrowser nodes={parsedNodes} selectedOids={selectedOids} onToggleOid={handleToggleOid} />
+              </div>
+            )}
+          </div>
+        </TabsContent>
+
+        {/* ── Test Tab ───────────────────────────────────────────────── */}
+        {editingProfileId && (
+          <TabsContent value="test" className="mt-4">
+            <ProfileTestPanel tenantId={tenantId} profileId={editingProfileId} />
+          </TabsContent>
         )}
-      </div>
-
-      {/* Poll Groups */}
-      <div className="rounded-sm border border-border bg-panel px-3 py-3 space-y-3">
-        <h2 className="text-sm font-medium text-text-secondary">Poll Groups</h2>
-        <p className="text-xs text-text-muted">
-          Assign OIDs to poll groups with different collection intervals. Click a group header to
-          make it active -- OIDs selected in the tree above will be added to the active group.
-        </p>
-        <div className="space-y-2">
-          {(['fast', 'standard', 'slow'] as PollGroupKey[]).map((key) => (
-            <PollGroupSection
-              key={key}
-              groupKey={key}
-              group={pollGroups[key]}
-              isActive={activePollGroup === key}
-              onSetActive={() => setActivePollGroup(key)}
-              onRemoveOid={handleRemoveOid}
-              onAddOid={handleManualAdd}
-            />
-          ))}
-        </div>
-      </div>
-
-      {/* Test Panel */}
-      <ProfileTestPanel tenantId={tenantId} profileId={editingProfileId} />
-
-      {/* Actions */}
-      <div className="flex items-center gap-3 pt-2 pb-4">
-        <Button onClick={handleSave} disabled={!name.trim() || saveMutation.isPending}>
-          {saveMutation.isPending
-            ? 'Saving...'
-            : editingProfileId
-              ? 'Update Profile'
-              : 'Create Profile'}
-        </Button>
-        <Button variant="outline" onClick={resetAndGoToList}>
-          Cancel
-        </Button>
-      </div>
+      </Tabs>
     </div>
   )
 }