support bot tag

src/components/Profile/index.tsx

@@ -4,6 +4,7 @@ import Nip05List from '@/components/Nip05List'
 import NpubQrCode from '@/components/NpubQrCode'
 import ProfileAbout from '@/components/ProfileAbout'
 import ProfileBanner from '@/components/ProfileBanner'
+import { ProfileBotBadge } from '@/components/ProfileBotBadge'
 import ProfileOptions from '@/components/ProfileOptions'
 import ProfileZapButton from '@/components/ProfileZapButton'
 import PubkeyCopy from '@/components/PubkeyCopy'
@@ -453,7 +454,7 @@ export default function Profile({
   
   if (!profile) return null // TypeScript guard - should never reach here but satisfies type checker
 
-  const { banner, username, about, avatar, pubkey, website, websiteList, nip05List } = profile
+  const { banner, username, about, avatar, pubkey, website, websiteList, nip05List, isBot } = profile
 
   return (
     <>
@@ -467,29 +468,43 @@ export default function Profile({
             imageFetchPriority="low"
           />
           {isVideo(avatar ?? '') ? (
-            <div className="absolute bottom-0 left-3 z-20 h-24 w-24 translate-y-1/2 overflow-hidden rounded-full border-4 border-background bg-muted md:h-48 md:w-48">
-              <video
-                src={avatar}
-                className="h-full w-full object-cover object-center"
-                autoPlay
-                muted
-                loop
-                playsInline
-                fetchPriority="high"
-              />
+            <div className="absolute bottom-0 left-3 z-20 h-24 w-24 translate-y-1/2 md:h-48 md:w-48">
+              <div className="relative h-full w-full">
+                <div className="h-full w-full overflow-hidden rounded-full border-4 border-background bg-muted">
+                  <video
+                    src={avatar}
+                    className="h-full w-full object-cover object-center"
+                    autoPlay
+                    muted
+                    loop
+                    playsInline
+                    fetchPriority="high"
+                  />
+                </div>
+                {isBot ? (
+                  <ProfileBotBadge size="lg" className="bottom-1 right-1 md:bottom-2 md:right-2" />
+                ) : null}
+              </div>
             </div>
           ) : (
-            <Avatar className="absolute bottom-0 left-3 z-20 h-24 w-24 translate-y-1/2 border-4 border-background md:h-48 md:w-48">
-              <AvatarImage
-                src={avatar}
-                className="object-cover object-center"
-                fetchPriority="high"
-                loading="eager"
-              />
-              <AvatarFallback>
-                <img src={defaultImage} alt="" />
-              </AvatarFallback>
-            </Avatar>
+            <div className="absolute bottom-0 left-3 z-20 h-24 w-24 translate-y-1/2 md:h-48 md:w-48">
+              <div className="relative h-full w-full">
+                <Avatar className="h-full w-full border-4 border-background">
+                  <AvatarImage
+                    src={avatar}
+                    className="object-cover object-center"
+                    fetchPriority="high"
+                    loading="eager"
+                  />
+                  <AvatarFallback>
+                    <img src={defaultImage} alt="" />
+                  </AvatarFallback>
+                </Avatar>
+                {isBot ? (
+                  <ProfileBotBadge size="lg" className="bottom-1 right-1 md:bottom-2 md:right-2" />
+                ) : null}
+              </div>
+            </div>
           )}
         </div>
         <div className="px-4">

src/components/ProfileBotBadge/index.tsx

@@ -0,0 +1,52 @@
+import { cn } from '@/lib/utils'
+
+const SIZE_CLASS = {
+  sm: 'h-3 w-3 min-h-[10px] min-w-[10px]',
+  md: 'h-4 w-4 min-h-3 min-w-3 max-h-5 max-w-5',
+  lg: 'h-7 w-7 min-h-5 min-w-5 max-h-9 max-w-9'
+} as const
+
+/**
+ * Small line-art robot badge for kind-0 profiles marked with a `bot` tag
+ * (see {@link profileIsBotFromKind0Tags}).
+ */
+export function ProfileBotBadge({
+  size = 'md',
+  className
+}: {
+  size?: keyof typeof SIZE_CLASS
+  className?: string
+}) {
+  return (
+    <span
+      role="img"
+      aria-label="Bot"
+      title="Bot"
+      className={cn(
+        'pointer-events-none absolute bottom-0 right-0 z-[25] flex items-center justify-center rounded-full bg-background/95 p-[1px] text-muted-foreground shadow-sm ring-1 ring-border',
+        SIZE_CLASS[size],
+        className
+      )}
+    >
+      <svg
+        viewBox="0 0 24 24"
+        className="h-full w-full shrink-0"
+        fill="none"
+        stroke="currentColor"
+        strokeWidth="1.35"
+        strokeLinecap="round"
+        strokeLinejoin="round"
+        aria-hidden
+      >
+        <path d="M12 2.5v2" />
+        <circle cx="12" cy="2" r="0.85" fill="currentColor" stroke="none" />
+        <rect x="6" y="5" width="12" height="10" rx="2" />
+        <circle cx="9.5" cy="10" r="0.95" fill="currentColor" stroke="none" />
+        <circle cx="14.5" cy="10" r="0.95" fill="currentColor" stroke="none" />
+        <path d="M9 14.5h6" />
+        <path d="M10 18v2.5M14 18v2.5" />
+        <path d="M8 20.5h8" />
+      </svg>
+    </span>
+  )
+}

src/components/UserAvatar/index.tsx

@@ -1,3 +1,4 @@
+import { ProfileBotBadge } from '@/components/ProfileBotBadge'
 import { Skeleton } from '@/components/ui/skeleton'
 import { useFetchProfile } from '@/hooks'
 import { toNostrBuildThumbUrl } from '@/lib/nostr-build'
@@ -204,6 +205,21 @@ const UserAvatarSizeCnMap = {
   tiny: 'w-4 h-4'
 }
 
+function botBadgeSizeForAvatar(
+  size: keyof typeof UserAvatarSizeCnMap
+): 'sm' | 'md' | 'lg' {
+  switch (size) {
+    case 'tiny':
+    case 'xSmall':
+      return 'sm'
+    case 'large':
+    case 'big':
+      return 'lg'
+    default:
+      return 'md'
+  }
+}
+
 export default function UserAvatar({
   userId,
   className,
@@ -317,8 +333,11 @@ export default function UserAvatar({
     <div
       ref={containerRef}
       data-user-avatar
-      className={cn('shrink-0 cursor-pointer block overflow-hidden rounded-full bg-muted', UserAvatarSizeCnMap[size], className)}
-      style={{ position: 'relative', zIndex: 10, isolation: 'isolate', display: 'block' }}
+      className={cn(
+        'relative isolate z-10 block shrink-0 cursor-pointer rounded-full bg-muted',
+        UserAvatarSizeCnMap[size],
+        className
+      )}
       onClick={(e) => {
         e.stopPropagation()
         if (!profileNavTarget) return
@@ -326,39 +345,42 @@ export default function UserAvatar({
         navigateToProfile(toProfile(profileNavTarget))
       }}
     >
-      {!imgError && currentSrc ? (
-        isVideoAvatar ? (
-          <video
-            src={currentSrc}
-            className="block w-full h-full object-cover object-center"
-            autoPlay
-            muted
-            loop
-            playsInline
-            onCanPlay={() => {
-              if (currentSrc && isHttpOrHttpsUrl(currentSrc)) loadedAvatarUrls.add(currentSrc)
-            }}
-            onError={handleImageError}
-          />
+      <div className="h-full w-full overflow-hidden rounded-full">
+        {!imgError && currentSrc ? (
+          isVideoAvatar ? (
+            <video
+              src={currentSrc}
+              className="block h-full w-full object-cover object-center"
+              autoPlay
+              muted
+              loop
+              playsInline
+              onCanPlay={() => {
+                if (currentSrc && isHttpOrHttpsUrl(currentSrc)) loadedAvatarUrls.add(currentSrc)
+              }}
+              onError={handleImageError}
+            />
+          ) : (
+            <img
+              src={currentSrc}
+              alt=""
+              className="block h-full w-full object-cover object-center"
+              style={{ display: 'block', position: 'static', margin: 0, padding: 0, top: 0, left: 0, right: 0, bottom: 0 }}
+              onError={handleImageError}
+              onLoad={handleImageLoad}
+              loading={isHttpOrHttpsUrl(currentSrc) ? 'eager' : 'lazy'}
+              decoding="async"
+              fetchpriority={isHttpOrHttpsUrl(currentSrc) ? 'high' : undefined}
+            />
+          )
         ) : (
-          <img 
-            src={currentSrc}
-            alt=""
-            className="block w-full h-full object-cover object-center"
-            style={{ display: 'block', position: 'static', margin: 0, padding: 0, top: 0, left: 0, right: 0, bottom: 0 }}
-            onError={handleImageError}
-            onLoad={handleImageLoad}
-            loading={isHttpOrHttpsUrl(currentSrc) ? 'eager' : 'lazy'}
-            decoding="async"
-            fetchpriority={isHttpOrHttpsUrl(currentSrc) ? 'high' : undefined}
-          />
-        )
-      ) : (
-        // Show initials or placeholder when image fails
-        <div className="h-full w-full flex items-center justify-center text-xs font-medium text-muted-foreground">
-          {(displayPubkey || userId).slice(0, 2).toUpperCase()}
-        </div>
-      )}
+          // Show initials or placeholder when image fails
+          <div className="flex h-full w-full items-center justify-center text-xs font-medium text-muted-foreground">
+            {(displayPubkey || userId).slice(0, 2).toUpperCase()}
+          </div>
+        )}
+      </div>
+      {profile?.isBot ? <ProfileBotBadge size={botBadgeSizeForAvatar(size)} /> : null}
     </div>
   )
 }
@@ -459,41 +481,44 @@ export function SimpleUserAvatar({
   return (
     <div
       ref={containerRef}
-      className={cn('shrink-0 relative overflow-hidden rounded-full bg-muted', UserAvatarSizeCnMap[size], className)}
+      className={cn('relative shrink-0 rounded-full bg-muted', UserAvatarSizeCnMap[size], className)}
     >
-      {!imgError && currentSrc ? (
-        isVideoAvatar ? (
-          <video
-            src={currentSrc}
-            className="block w-full h-full object-cover object-center"
-            autoPlay
-            muted
-            loop
-            playsInline
-            onCanPlay={() => {
-              if (currentSrc && isHttpOrHttpsUrl(currentSrc)) loadedAvatarUrls.add(currentSrc)
-            }}
-            onError={handleImageError}
-          />
+      <div className="h-full w-full overflow-hidden rounded-full">
+        {!imgError && currentSrc ? (
+          isVideoAvatar ? (
+            <video
+              src={currentSrc}
+              className="block h-full w-full object-cover object-center"
+              autoPlay
+              muted
+              loop
+              playsInline
+              onCanPlay={() => {
+                if (currentSrc && isHttpOrHttpsUrl(currentSrc)) loadedAvatarUrls.add(currentSrc)
+              }}
+              onError={handleImageError}
+            />
+          ) : (
+            <img
+              src={currentSrc}
+              alt=""
+              className="block h-full w-full object-cover object-center"
+              style={{ display: 'block', position: 'static', margin: 0, padding: 0, top: 0, left: 0, right: 0, bottom: 0 }}
+              onError={handleImageError}
+              onLoad={handleImageLoad}
+              loading={isHttpOrHttpsUrl(currentSrc) ? 'eager' : 'lazy'}
+              decoding="async"
+              fetchpriority={isHttpOrHttpsUrl(currentSrc) ? 'high' : undefined}
+            />
+          )
         ) : (
-          <img 
-            src={currentSrc}
-            alt=""
-            className="block w-full h-full object-cover object-center"
-            style={{ display: 'block', position: 'static', margin: 0, padding: 0, top: 0, left: 0, right: 0, bottom: 0 }}
-            onError={handleImageError}
-            onLoad={handleImageLoad}
-            loading={isHttpOrHttpsUrl(currentSrc) ? 'eager' : 'lazy'}
-            decoding="async"
-            fetchpriority={isHttpOrHttpsUrl(currentSrc) ? 'high' : undefined}
-          />
-        )
-      ) : (
-        // Show initials or placeholder when image fails
-        <div className="h-full w-full flex items-center justify-center text-xs font-medium text-muted-foreground">
-          {(displayPubkey || userId).slice(0, 2).toUpperCase()}
-        </div>
-      )}
+          // Show initials or placeholder when image fails
+          <div className="flex h-full w-full items-center justify-center text-xs font-medium text-muted-foreground">
+            {(displayPubkey || userId).slice(0, 2).toUpperCase()}
+          </div>
+        )}
+      </div>
+      {profile?.isBot ? <ProfileBotBadge size={botBadgeSizeForAvatar(size)} /> : null}
     </div>
   )
 }

src/lib/event-metadata.ts

@@ -149,6 +149,28 @@ function nip05ListFromJson(raw: unknown): string[] | undefined {
   return out.length > 0 ? out : undefined
 }
 
+/**
+ * Kind-0 metadata: profile is marked as a bot when there is `["bot"]` or `["bot","true"]`
+ * (case-insensitive tag name and value) and no `["bot","false"]` tag.
+ */
+export function profileIsBotFromKind0Tags(tags: string[][]): boolean {
+  let hasFalse = false
+  let hasAffirmative = false
+  for (const raw of tags) {
+    if (!Array.isArray(raw) || !raw.length) continue
+    if (String(raw[0]).toLowerCase() !== 'bot') continue
+    if (raw.length === 1) {
+      hasAffirmative = true
+      continue
+    }
+    const v = String(raw[1] ?? '').toLowerCase()
+    if (v === 'false') hasFalse = true
+    else if (v === 'true') hasAffirmative = true
+  }
+  if (hasFalse) return false
+  return hasAffirmative
+}
+
 export function getProfileFromEvent(event: Event) {
   // Parse JSON content as fallback
   let profileObj: any = {}
@@ -223,6 +245,7 @@ export function getProfileFromEvent(event: Event) {
     banner: profileObj.banner,
     avatar: avatarUrl,
     pictureSize,
+    isBot: event.kind === 0 ? profileIsBotFromKind0Tags(event.tags as string[][]) : undefined,
     username: username || formatPubkey(event.pubkey),
     original_username: username,
     nip05,

src/pages/secondary/ProfileEditorPage/index.tsx

@@ -366,8 +366,24 @@ const ProfileEditorPage = forwardRef(({ index }: { index?: number }, ref) => {
     try {
       // Strip empty/incomplete rows, trim whitespace.
       const validTags = profileTags
-        .filter((t) => Array.isArray(t) && t.length >= 2 && (t[0] ?? '').trim() && (t[1] ?? '').trim())
-        .map((t) => [t[0].trim(), t[1].trim(), ...t.slice(2)])
+        .filter((t) => {
+          if (!Array.isArray(t) || !(t[0] ?? '').trim()) return false
+          const name = (t[0] ?? '').trim()
+          if (name === 'bot') return true
+          return t.length >= 2 && (t[1] ?? '').trim()
+        })
+        .map((t) => {
+          const name = (t[0] ?? '').trim()
+          const v1 = (t[1] ?? '').trim()
+          if (name === 'bot') {
+            if (t.length === 1 || !v1) return ['bot']
+            const low = v1.toLowerCase()
+            if (low === 'false') return ['bot', 'false']
+            if (low === 'true') return ['bot', 'true']
+            return ['bot', v1]
+          }
+          return [name, v1, ...t.slice(2)]
+        })
 
       // Sort alphabetically by tag name (stable: same-name tags keep their relative order).
       const sortedTags = [...validTags]
@@ -388,6 +404,7 @@ const ProfileEditorPage = forwardRef(({ index }: { index?: number }, ref) => {
       const seenContent = new Set<string>()
       for (const tag of sortedTags) {
         const name = tag[0]
+        if (name === 'bot') continue
         if (DISPLAY_ORDER.includes(name) && !seenContent.has(name)) {
           content[name] = tag[1]
           seenContent.add(name)
@@ -653,7 +670,10 @@ const ProfileEditorPage = forwardRef(({ index }: { index?: number }, ref) => {
                 variant="outline"
                 size="icon"
                 className="h-8 w-8 shrink-0"
-                onClick={() => addTag(tagToAdd === '__custom__' ? '' : tagToAdd)}
+                onClick={() => {
+                  const name = tagToAdd === '__custom__' ? '' : tagToAdd
+                  addTag(name, name === 'bot' ? 'true' : '')
+                }}
                 aria-label={t('Add tag')}
               >
                 <Plus className="h-4 w-4" />

src/types/index.d.ts

@@ -39,6 +39,8 @@ export type TProfile = {
   lightningAddress?: string
   lightningAddressList?: string[]
   created_at?: number
+  /** Kind 0: `bot` / `bot,true` tags without `bot,false` — see Nostr profile conventions. */
+  isBot?: boolean
 }
 
 export type TPaymentInfo = {