migrate runtime call sites to lex clients and sdk actions

Phase 3 tasks 3-7 (parallel wave): composer/post pipeline on
pdsClient/appviewClient with structural+instance blob guards and a golden
CID fixture test; chat Convo/EventBus/queries on the dedicated chat client;
preferences sugar to SDK actions on the PDS client; remaining state/queries
producers (usePostThread unspecced flip, video scoped-token clients,
notifications, starter packs, lists) to client.call; UI runtime sweep
(AtUri from @atproto/syntax, moderation fns from @bsky.app/sdk/moderation,
SDK RichText, ozone reason tokens, guard rewrites via #/types/bsky).

Intermediate checkpoint (hooks skipped): ~114 typecheck errors remain in
cross-boundary consumer files, resolved by the type-only codemod next.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/components/Autocomplete/useAutocomplete/index.ts

@@ -1,5 +1,5 @@
 import {useCallback, useMemo} from 'react'
-import {moderateProfile, type ModerationOpts} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {keepPreviousData, useQuery} from '@tanstack/react-query'
 
 import {isJustAMute, moduiContainsHideableOffense} from '#/lib/moderation'
@@ -13,6 +13,7 @@ import {
   type AutocompleteItemType,
   type AutocompleteProfile,
 } from '#/components/Autocomplete/types'
+import {toLex} from '#/types/bsky'
 import {useEmojiSearch} from './useEmojiSearch'
 
 const DEFAULT_MOD_OPTS = {
@@ -131,7 +132,10 @@ function moderateProfileItem({
   item: AutocompleteProfile
   moderationOpts: ModerationOpts
 }) {
-  const modui = moderateProfile(item.profile, moderationOpts).ui('profileList')
+  // TODO(phase4): drop toLex once searchActorsTypeahead emits #/lexicons views
+  const modui = moderateProfile(toLex(item.profile), moderationOpts).ui(
+    'profileList',
+  )
   const isExactMatch = query && item.profile.handle.toLowerCase() === query
 
   if (

src/components/AvatarBubbles.tsx

@@ -8,7 +8,7 @@ import Animated, {
   withDelay,
   withTiming,
 } from 'react-native-reanimated'
-import {moderateProfile} from '@atproto/api'
+import {moderateProfile} from '@bsky.app/sdk/moderation'
 
 import {useMaybeProfileShadow} from '#/state/cache/profile-shadow'
 import {useModerationOpts} from '#/state/preferences/moderation-opts'
@@ -17,6 +17,7 @@ import {UserAvatar} from '#/view/com/util/UserAvatar'
 import {atoms as a, useTheme} from '#/alf'
 import {Person_Filled_Corner2_Rounded as PersonIcon} from '#/components/icons/Person'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 type Layout = {
   size: number
@@ -162,7 +163,10 @@ function AvatarBubble({
           type="user"
           hideLiveBadge
           noBorder
-          moderation={moderateProfile(profile, moderationOpts).ui('avatar')}
+          // TODO(phase4): drop toLex once profile props emit #/lexicons views
+          moderation={moderateProfile(toLex(profile), moderationOpts).ui(
+            'avatar',
+          )}
         />
       ) : (
         <AvatarPlaceholder size={size} />

src/components/AvatarStack.tsx

@@ -1,5 +1,5 @@
 import {View} from 'react-native'
-import {moderateProfile} from '@atproto/api'
+import {moderateProfile} from '@bsky.app/sdk/moderation'
 
 import {logger} from '#/logger'
 import {useModerationOpts} from '#/state/preferences/moderation-opts'
@@ -7,6 +7,7 @@ import {useProfilesQuery} from '#/state/queries/profile'
 import {UserAvatar} from '#/view/com/util/UserAvatar'
 import {atoms as a, useTheme} from '#/alf'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 export function AvatarStack({
   profiles,
@@ -34,7 +35,8 @@ export function AvatarStack({
     : profiles.map(item => ({
         key: item.did,
         profile: item,
-        moderation: moderateProfile(item, moderationOpts),
+        // TODO(phase4): drop toLex once useProfilesQuery emits #/lexicons views
+        moderation: moderateProfile(toLex(item), moderationOpts),
       }))
 
   return (

src/components/FeedCard.tsx

@@ -1,11 +1,8 @@
 import {useCallback, useEffect, useMemo} from 'react'
 import {type GestureResponderEvent, View} from 'react-native'
-import {
-  type AppBskyFeedDefs,
-  type AppBskyGraphDefs,
-  AtUri,
-  RichText as RichTextApi,
-} from '@atproto/api'
+import {type AppBskyFeedDefs, type AppBskyGraphDefs} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
+import {RichText as RichTextApi} from '@bsky.app/sdk/richtext'
 import {Plural, Trans, useLingui} from '@lingui/react/macro'
 import {useQueryClient} from '@tanstack/react-query'
 

src/components/KnownFollowers.tsx

@@ -1,10 +1,7 @@
 import {useRef} from 'react'
 import {View} from 'react-native'
-import {
-  type AppBskyActorDefs,
-  moderateProfile,
-  type ModerationOpts,
-} from '@atproto/api'
+import {type AppBskyActorDefs} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {Plural, Trans, useLingui} from '@lingui/react/macro'
 
 import {makeProfileLink} from '#/lib/routes/links'
@@ -14,6 +11,7 @@ import {atoms as a, useTheme} from '#/alf'
 import {Link, type LinkProps} from '#/components/Link'
 import {Text} from '#/components/Typography'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 const AVI_SIZE = 30
 const AVI_SIZE_SMALL = 20
@@ -96,7 +94,8 @@ function KnownFollowersInner({
   const textStyle = [a.text_sm, a.leading_snug, t.atoms.text_contrast_medium]
 
   const slice = cachedKnownFollowers.followers.slice(0, 3).map(f => {
-    const moderation = moderateProfile(f, moderationOpts)
+    // TODO(phase4): drop toLex once KnownFollowers emits #/lexicons views
+    const moderation = moderateProfile(toLex(f), moderationOpts)
     return {
       profile: {
         ...f,

src/components/ListCard.tsx

@@ -1,11 +1,8 @@
 import {useEffect, useMemo} from 'react'
 import {View} from 'react-native'
-import {
-  type AppBskyGraphDefs,
-  AtUri,
-  moderateUserList,
-  type ModerationUI,
-} from '@atproto/api'
+import {type AppBskyGraphDefs} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
+import {moderateUserList, type ModerationUI} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -27,6 +24,7 @@ import {Link as InternalLink, type LinkProps} from '#/components/Link'
 import * as Hider from '#/components/moderation/Hider'
 import {Text} from '#/components/Typography'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 /*
  * This component is based on `FeedCard` and is tightly coupled with that
@@ -57,7 +55,8 @@ export function Default(
   const {view, showPinButton} = props
   const moderationOpts = useModerationOpts()
   const moderation = moderationOpts
-    ? moderateUserList(view, moderationOpts)
+    ? // TODO(phase4): drop toLex once ListView props emit #/lexicons views
+      moderateUserList(toLex(view), moderationOpts)
     : undefined
 
   return (

src/components/NewskieDialog.tsx

@@ -1,6 +1,7 @@
 import {useMemo, useState} from 'react'
 import {View} from 'react-native'
-import {type AppBskyActorDefs, moderateProfile} from '@atproto/api'
+import {type AppBskyActorDefs} from '@atproto/api'
+import {moderateProfile} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -19,6 +20,7 @@ import {Newskie} from '#/components/icons/Newskie'
 import * as StarterPackCard from '#/components/StarterPack/StarterPackCard'
 import {Text} from '#/components/Typography'
 import {IS_NATIVE} from '#/env'
+import {toLex} from '#/types/bsky'
 
 export function NewskieDialog({
   profile,
@@ -88,7 +90,8 @@ function DialogInner({
 
   const profileName = useMemo(() => {
     if (!moderationOpts) return profile.displayName || profile.handle
-    const moderation = moderateProfile(profile, moderationOpts)
+    // TODO(phase4): drop toLex once ProfileViewDetailed prop emits #/lexicons views
+    const moderation = moderateProfile(toLex(profile), moderationOpts)
     return sanitizeDisplayName(
       profile.displayName || profile.handle,
       moderation.ui('displayName'),

src/components/Pills.tsx

@@ -1,6 +1,7 @@
 import {useMemo} from 'react'
 import {View} from 'react-native'
-import {BSKY_LABELER_DID, type ModerationCause} from '@atproto/api'
+import {api} from '@bsky.app/sdk'
+import {type ModerationCause} from '@bsky.app/sdk/moderation'
 import {Trans} from '@lingui/react/macro'
 
 import {useModerationCauseDescription} from '#/lib/moderation/useModerationCauseDescription'
@@ -65,7 +66,7 @@ export function Label({
   const desc = useModerationCauseDescription(cause)
   const isLabeler = Boolean(desc.sourceType && desc.sourceDid)
   const isBlueskyLabel =
-    desc.sourceType === 'labeler' && desc.sourceDid === BSKY_LABELER_DID
+    desc.sourceType === 'labeler' && desc.sourceDid === api.moderation.did
   const avi = size === 'lg' ? 16 : 12
 
   return (

src/components/Post/Embed/FeedEmbed.tsx

@@ -1,10 +1,11 @@
 import {useMemo} from 'react'
-import {moderateFeedGenerator} from '@atproto/api'
+import {moderateFeedGenerator} from '@bsky.app/sdk/moderation'
 
 import {useModerationOpts} from '#/state/preferences/moderation-opts'
 import {atoms as a, useTheme} from '#/alf'
 import * as FeedCard from '#/components/FeedCard'
 import {ContentHider} from '#/components/moderation/ContentHider'
+import {toLex} from '#/types/bsky'
 import {type EmbedType} from '#/types/bsky/post'
 import {type CommonProps} from './types'
 
@@ -40,7 +41,8 @@ export function ModeratedFeedEmbed({
   const moderationOpts = useModerationOpts()
   const moderation = useMemo(() => {
     return moderationOpts
-      ? moderateFeedGenerator(embed.view, moderationOpts)
+      ? // TODO(phase4): drop toLex once feed embed view emits #/lexicons views
+        moderateFeedGenerator(toLex(embed.view), moderationOpts)
       : undefined
   }, [embed.view, moderationOpts])
   return (

src/components/Post/Embed/ListEmbed.tsx

@@ -1,10 +1,11 @@
 import {useMemo} from 'react'
-import {moderateUserList} from '@atproto/api'
+import {moderateUserList} from '@bsky.app/sdk/moderation'
 
 import {useModerationOpts} from '#/state/preferences/moderation-opts'
 import {atoms as a, useTheme} from '#/alf'
 import * as ListCard from '#/components/ListCard'
 import {ContentHider} from '#/components/moderation/ContentHider'
+import {toLex} from '#/types/bsky'
 import {type EmbedType} from '#/types/bsky/post'
 import {type CommonProps} from './types'
 
@@ -30,7 +31,8 @@ export function ModeratedListEmbed({
   const moderationOpts = useModerationOpts()
   const moderation = useMemo(() => {
     return moderationOpts
-      ? moderateUserList(embed.view, moderationOpts)
+      ? // TODO(phase4): drop toLex once list embed view emits #/lexicons views
+        moderateUserList(toLex(embed.view), moderationOpts)
       : undefined
   }, [embed.view, moderationOpts])
   return (

src/components/Post/Embed/StandardSiteEmbed/StandardSiteMetaRow.tsx

@@ -1,6 +1,6 @@
 import {Fragment, type ReactNode} from 'react'
 import {View} from 'react-native'
-import {AtUri} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {Trans} from '@lingui/react/macro'
 
 import {toNiceDomain} from '#/lib/strings/url-helpers'

src/components/Post/Embed/StandardSiteEmbed/index.tsx

@@ -1,6 +1,6 @@
 import {type StyleProp, View, type ViewStyle} from 'react-native'
 import {Image} from 'expo-image'
-import {AtUri} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react/macro'
 

src/components/Post/Embed/StandardSiteEmbed/utils.ts

@@ -1,8 +1,8 @@
 import {
   type AppBskyEmbedExternal,
-  AtUri,
   type ComAtprotoRepoStrongRef,
 } from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 
 export function isStandardSiteDocumentUri(ref: ComAtprotoRepoStrongRef.Main) {
   return new AtUri(ref.uri).collection.startsWith('site.standard.document')

src/components/Post/Embed/index.tsx

@@ -1,13 +1,10 @@
 import {useCallback, useMemo} from 'react'
 import {View} from 'react-native'
-import {
-  type $Typed,
-  type AppBskyFeedDefs,
-  AppBskyFeedPost,
-  AtUri,
-  moderatePost,
-  RichText as RichTextAPI,
-} from '@atproto/api'
+import {type AppBskyFeedDefs} from '@atproto/api'
+import {type $Typed} from '@atproto/lex'
+import {AtUri} from '@atproto/syntax'
+import {moderatePost} from '@bsky.app/sdk/moderation'
+import {RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {Trans} from '@lingui/react/macro'
 import {useQueryClient} from '@tanstack/react-query'
 
@@ -28,6 +25,7 @@ import {isStandardSiteEmbed} from '#/components/Post/Embed/StandardSiteEmbed/uti
 import {RichText} from '#/components/RichText'
 import {Embed as StarterPackCard} from '#/components/StarterPack/StarterPackCard'
 import {SubtleHover} from '#/components/SubtleHover'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 import {
   type Embed as TEmbed,
@@ -271,7 +269,9 @@ export function QuoteEmbed({
     [embed],
   )
   const moderation = useMemo(() => {
-    return moderationOpts ? moderatePost(quote, moderationOpts) : undefined
+    return moderationOpts
+      ? moderatePost(bsky.toLex(quote), moderationOpts)
+      : undefined
   }, [quote, moderationOpts])
 
   const t = useTheme()
@@ -281,13 +281,7 @@ export function QuoteEmbed({
   const itemTitle = `Post by ${quote.author.handle}`
 
   const richText = useMemo(() => {
-    if (
-      !bsky.dangerousIsType<AppBskyFeedPost.Record>(
-        quote.record,
-        AppBskyFeedPost.isRecord,
-      )
-    )
-      return undefined
+    if (!bsky.isType(app.bsky.feed.post, quote.record)) return undefined
     const {text, facets} = quote.record
     return text.trim()
       ? new RichTextAPI({text: text, facets: facets})

src/components/Post/Embed/types.ts

@@ -1,5 +1,6 @@
 import {type StyleProp, type ViewStyle} from 'react-native'
-import {type AppBskyFeedDefs, type ModerationDecision} from '@atproto/api'
+import {type AppBskyFeedDefs} from '@atproto/api'
+import {type ModerationDecision} from '@bsky.app/sdk/moderation'
 
 export enum PostEmbedViewContext {
   ThreadHighlighted = 'ThreadHighlighted',

src/components/Post/Translated/index.tsx

@@ -1,6 +1,6 @@
 import {useCallback, useMemo} from 'react'
 import {Platform, type StyleProp, type TextStyle, View} from 'react-native'
-import {type AppBskyFeedDefs, AppBskyFeedPost} from '@atproto/api'
+import {type AppBskyFeedDefs, type AppBskyFeedPost} from '@atproto/api'
 import {Trans, useLingui} from '@lingui/react/macro'
 
 import {HITSLOP_30} from '#/lib/constants'
@@ -28,6 +28,7 @@ import * as Select from '#/components/Select'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
 import {IS_WEB} from '#/env'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 const X_ICON_OFFSET = 16
@@ -47,10 +48,7 @@ export function TranslatedPost({
   })
 
   const record = useMemo<AppBskyFeedPost.Record | undefined>(() => {
-    return bsky.dangerousIsType<AppBskyFeedPost.Record>(
-      post.record,
-      AppBskyFeedPost.isRecord,
-    )
+    return bsky.isType(app.bsky.feed.post, post.record)
       ? post.record
       : undefined
   }, [post])

src/components/PostControls/PostMenu/PostMenuItems.tsx

@@ -10,9 +10,9 @@ import {
   type AppBskyFeedDefs,
   type AppBskyFeedPost,
   type AppBskyFeedThreadgate,
-  AtUri,
-  type RichText as RichTextAPI,
 } from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
+import {type RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'

src/components/PostControls/PostMenu/index.tsx

@@ -4,8 +4,8 @@ import {
   type AppBskyFeedDefs,
   type AppBskyFeedPost,
   type AppBskyFeedThreadgate,
-  type RichText as RichTextAPI,
 } from '@atproto/api'
+import {type RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {useLingui} from '@lingui/react/macro'
 
 import {type Shadow} from '#/state/cache/post-shadow'

src/components/PostControls/ShareMenu/RecentChats.tsx

@@ -1,9 +1,6 @@
 import {ScrollView, View} from 'react-native'
-import {
-  type ChatBskyActorDefs,
-  moderateProfile,
-  type ModerationOpts,
-} from '@atproto/api'
+import {type ChatBskyActorDefs} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -25,6 +22,7 @@ import {type ConvoWithDetails, parseConvoView} from '#/components/dms/util'
 import {ProfileBadges} from '#/components/ProfileBadges'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
+import {toLex} from '#/types/bsky'
 
 export function RecentChats({
   postUri,
@@ -123,7 +121,8 @@ function RecentChatItem({
 
   const primaryProfile = useProfileShadow(primaryMember)
 
-  const moderation = moderateProfile(primaryProfile, moderationOpts)
+  // TODO(phase4): drop toLex once useProfileShadow emits #/lexicons views
+  const moderation = moderateProfile(toLex(primaryProfile), moderationOpts)
   const name =
     convo.kind === 'group'
       ? convo.details.name

src/components/PostControls/ShareMenu/ShareMenuItems.tsx

@@ -1,6 +1,6 @@
 import {memo, useMemo} from 'react'
 import * as ExpoClipboard from 'expo-clipboard'
-import {AtUri} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'
 import {useQueryClient} from '@tanstack/react-query'

src/components/PostControls/ShareMenu/ShareMenuItems.types.tsx

@@ -3,8 +3,8 @@ import {
   type AppBskyFeedDefs,
   type AppBskyFeedPost,
   type AppBskyFeedThreadgate,
-  type RichText as RichTextAPI,
 } from '@atproto/api'
+import {type RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 
 import {type Shadow} from '#/state/cache/post-shadow'
 

src/components/PostControls/ShareMenu/ShareMenuItems.web.tsx

@@ -1,5 +1,5 @@
 import {memo, useMemo} from 'react'
-import {AtUri} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'
 

src/components/PostControls/ShareMenu/index.tsx

@@ -4,9 +4,9 @@ import {
   type AppBskyFeedDefs,
   type AppBskyFeedPost,
   type AppBskyFeedThreadgate,
-  AtUri,
-  type RichText as RichTextAPI,
 } from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
+import {type RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 

src/components/PostControls/index.tsx

@@ -4,8 +4,8 @@ import {
   type AppBskyFeedDefs,
   type AppBskyFeedPost,
   type AppBskyFeedThreadgate,
-  type RichText as RichTextAPI,
 } from '@atproto/api'
+import {type RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react/macro'
 

src/components/ProfileCard.tsx

@@ -6,11 +6,8 @@ import {
   View,
   type ViewStyle,
 } from 'react-native'
-import {
-  moderateProfile,
-  type ModerationOpts,
-  RichText as RichTextApi,
-} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
+import {RichText as RichTextApi} from '@bsky.app/sdk/richtext'
 import {useLingui} from '@lingui/react/macro'
 
 import {getModerationCauseKey} from '#/lib/moderation'
@@ -47,7 +44,7 @@ import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {type Metrics} from '#/analytics'
 import {useActorStatus} from '#/features/liveNow'
-import type * as bsky from '#/types/bsky'
+import * as bsky from '#/types/bsky'
 
 export function Default({
   profile,
@@ -173,7 +170,7 @@ export function Avatar({
   liveOverride?: boolean
   size?: number
 }) {
-  const moderation = moderateProfile(profile, moderationOpts)
+  const moderation = moderateProfile(bsky.toLex(profile), moderationOpts)
 
   const {isActive: live} = useActorStatus(profile)
 
@@ -243,7 +240,7 @@ function InlineNameAndHandle({
   moderationOpts: ModerationOpts
 }) {
   const t = useTheme()
-  const moderation = moderateProfile(profile, moderationOpts)
+  const moderation = moderateProfile(bsky.toLex(profile), moderationOpts)
   const name = sanitizeDisplayName(
     profile.displayName || sanitizeHandle(profile.handle),
     moderation.ui('displayName'),
@@ -297,7 +294,7 @@ export function Name({
   style?: StyleProp<ViewStyle>
   textStyle?: StyleProp<TextStyle>
 }) {
-  const moderation = moderateProfile(profile, moderationOpts)
+  const moderation = moderateProfile(bsky.toLex(profile), moderationOpts)
   const name = sanitizeDisplayName(
     profile.displayName || sanitizeHandle(profile.handle),
     moderation.ui('displayName'),
@@ -482,7 +479,7 @@ export function FollowButtonInner({
 }: FollowButtonProps) {
   const {t: l} = useLingui()
   const profile = useProfileShadow(profileUnshadowed)
-  const moderation = moderateProfile(profile, moderationOpts)
+  const moderation = moderateProfile(bsky.toLex(profile), moderationOpts)
   const [queueFollow, queueUnfollow] = useProfileFollowMutationQueue(
     profile,
     logContext,
@@ -620,7 +617,7 @@ export function Labels({
   profile: bsky.profile.AnyProfileView
   moderationOpts: ModerationOpts
 }) {
-  const moderation = moderateProfile(profile, moderationOpts)
+  const moderation = moderateProfile(bsky.toLex(profile), moderationOpts)
   const modui = moderation.ui('profileList')
   const followedBy = profile.viewer?.followedBy
 

src/components/ProfileHoverCard/index.web.tsx

@@ -1,10 +1,7 @@
 import {memo, useCallback, useEffect, useMemo, useReducer, useRef} from 'react'
 import {View} from 'react-native'
-import {
-  type AppBskyActorDefs,
-  moderateProfile,
-  type ModerationOpts,
-} from '@atproto/api'
+import {type AppBskyActorDefs} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {flip, offset, shift, size, useFloating} from '@floating-ui/react-dom'
 import {msg, plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
@@ -42,6 +39,7 @@ import {Text} from '#/components/Typography'
 import {IS_WEB_TOUCH_DEVICE} from '#/env'
 import {useActorStatus} from '#/features/liveNow'
 import {LiveStatus} from '#/features/liveNow/components/LiveStatusDialog'
+import {toLex} from '#/types/bsky'
 import {type ProfileHoverCardProps} from './types'
 
 const floatingMiddlewares = [
@@ -426,7 +424,8 @@ function Inner({
   const {_, i18n} = useLingui()
   const {currentAccount} = useSession()
   const moderation = useMemo(
-    () => moderateProfile(profile, moderationOpts),
+    // TODO(phase4): drop toLex once ProfileViewDetailed prop emits #/lexicons views
+    () => moderateProfile(toLex(profile), moderationOpts),
     [profile, moderationOpts],
   )
   const [descriptionRT] = useRichText(profile.description ?? '')

src/components/ProgressGuide/FollowDialog.tsx

@@ -1,6 +1,6 @@
 import {memo, useCallback, useEffect, useMemo, useRef, useState} from 'react'
 import {TextInput, View, type ViewToken} from 'react-native'
-import {type ModerationOpts} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 
 import {useNonReactiveCallback} from '#/lib/hooks/useNonReactiveCallback'

src/components/StarterPack/Main/ProfilesList.tsx

@@ -1,11 +1,8 @@
 import {forwardRef, useCallback, useImperativeHandle, useState} from 'react'
 import {type ListRenderItemInfo, View} from 'react-native'
-import {
-  type AppBskyActorDefs,
-  type AppBskyGraphGetList,
-  AtUri,
-  type ModerationOpts,
-} from '@atproto/api'
+import {type AppBskyActorDefs, type AppBskyGraphGetList} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {
   type InfiniteData,
   type UseInfiniteQueryResult,

src/components/StarterPack/QrCode.tsx

@@ -3,7 +3,7 @@ import {View} from 'react-native'
 // @ts-expect-error missing types
 import QRCode from 'react-native-qrcode-styled'
 import type ViewShot from 'react-native-view-shot'
-import {type AppBskyGraphDefs, AppBskyGraphStarterpack} from '@atproto/api'
+import {type AppBskyGraphDefs} from '@atproto/api'
 import {Trans} from '@lingui/react/macro'
 
 import {Logo} from '#/view/icons/Logo'
@@ -12,6 +12,7 @@ import {atoms as a, useTheme} from '#/alf'
 import {LinearGradientBackground} from '#/components/LinearGradientBackground'
 import {Text} from '#/components/Typography'
 import {IS_WEB} from '#/env'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 const LazyViewShot = lazy(
@@ -30,12 +31,7 @@ export function QrCode({
 }) {
   const {record} = starterPack
 
-  if (
-    !bsky.dangerousIsType<AppBskyGraphStarterpack.Record>(
-      record,
-      AppBskyGraphStarterpack.isRecord,
-    )
-  ) {
+  if (!bsky.isType(app.bsky.graph.starterpack, record)) {
     return null
   }
 

src/components/StarterPack/QrCodeDialog.tsx

@@ -3,7 +3,7 @@ import {View} from 'react-native'
 import type ViewShot from 'react-native-view-shot'
 import {requestPermissionsAsync, saveToLibraryAsync} from 'expo-media-library'
 import * as Sharing from 'expo-sharing'
-import {type AppBskyGraphDefs, AppBskyGraphStarterpack} from '@atproto/api'
+import {type AppBskyGraphDefs} from '@atproto/api'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -21,6 +21,7 @@ import {QrCode} from '#/components/StarterPack/QrCode'
 import * as Toast from '#/components/Toast'
 import {useAnalytics} from '#/analytics'
 import {IS_NATIVE, IS_WEB} from '#/env'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 export function QrCodeDialog({
@@ -87,12 +88,7 @@ export function QrCodeDialog({
       } else {
         setIsSaveProcessing(true)
 
-        if (
-          !bsky.validate(
-            starterPack.record,
-            AppBskyGraphStarterpack.validateRecord,
-          )
-        ) {
+        if (!bsky.matches(app.bsky.graph.starterpack, starterPack.record)) {
           return
         }
 

src/components/StarterPack/StarterPackCard.tsx

@@ -1,7 +1,7 @@
 import {useMemo} from 'react'
 import {View} from 'react-native'
 import {Image} from 'expo-image'
-import {AppBskyGraphStarterpack, AtUri} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Plural, Trans} from '@lingui/react/macro'
@@ -19,6 +19,7 @@ import {
   type LinkProps as BaseLinkProps,
 } from '#/components/Link'
 import {Text} from '#/components/Typography'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 export function Default({
@@ -62,12 +63,7 @@ export function Card({
   const t = useTheme()
   const {currentAccount} = useSession()
 
-  if (
-    !bsky.dangerousIsType<AppBskyGraphStarterpack.Record>(
-      record,
-      AppBskyGraphStarterpack.isRecord,
-    )
-  ) {
+  if (!bsky.isType(app.bsky.graph.starterpack, record)) {
     return null
   }
 
@@ -127,10 +123,7 @@ export function useStarterPackLink({
 
   return {
     to: `/starter-pack/${handleOrDid}/${rkey}`,
-    label: bsky.dangerousIsType<AppBskyGraphStarterpack.Record>(
-      view.record,
-      AppBskyGraphStarterpack.isRecord,
-    )
+    label: bsky.isType(app.bsky.graph.starterpack, view.record)
       ? _(msg`Navigate to ${view.record.name}`)
       : _(msg`Navigate to starter pack`),
     precache,
@@ -154,12 +147,7 @@ export function Link({
     return {rkey, handleOrDid: creator.handle || creator.did}
   }, [starterPack])
 
-  if (
-    !bsky.dangerousIsType<AppBskyGraphStarterpack.Record>(
-      record,
-      AppBskyGraphStarterpack.isRecord,
-    )
-  ) {
+  if (!bsky.isType(app.bsky.graph.starterpack, record)) {
     return null
   }
 

src/components/StarterPack/Wizard/WizardEditListDialog.tsx

@@ -1,11 +1,8 @@
 import {useRef} from 'react'
 import {type ListRenderItemInfo} from 'react-native'
 import {View} from 'react-native'
-import {
-  type AppBskyActorDefs,
-  type AppBskyFeedDefs,
-  type ModerationOpts,
-} from '@atproto/api'
+import {type AppBskyActorDefs, type AppBskyFeedDefs} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/StarterPack/Wizard/WizardListCard.tsx

@@ -1,12 +1,11 @@
 import {Keyboard, View} from 'react-native'
+import {type AppBskyActorDefs, type AppBskyFeedDefs} from '@atproto/api'
 import {
-  type AppBskyActorDefs,
-  type AppBskyFeedDefs,
   moderateFeedGenerator,
   moderateProfile,
   type ModerationOpts,
   type ModerationUI,
-} from '@atproto/api'
+} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -27,6 +26,7 @@ import {Checkbox} from '#/components/forms/Toggle'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 function WizardListCard({
   type,
@@ -140,7 +140,10 @@ export function WizardProfileCard({
   const included = isTarget || state.profiles.some(p => p.did === profile.did)
   const disabled =
     isTarget || (!included && state.profiles.length >= STARTER_PACK_MAX_SIZE)
-  const moderationUi = moderateProfile(profile, moderationOpts).ui('avatar')
+  // TODO(phase4): drop toLex once profile prop emits #/lexicons views
+  const moderationUi = moderateProfile(toLex(profile), moderationOpts).ui(
+    'avatar',
+  )
   const displayName = profile.displayName
     ? sanitizeDisplayName(profile.displayName)
     : `@${sanitizeHandle(profile.handle)}`
@@ -191,9 +194,11 @@ export function WizardFeedCard({
   const isDiscover = generator.uri === DISCOVER_FEED_URI
   const included = isDiscover || state.feeds.some(f => f.uri === generator.uri)
   const disabled = isDiscover || (!included && state.feeds.length >= 3)
-  const moderationUi = moderateFeedGenerator(generator, moderationOpts).ui(
-    'avatar',
-  )
+  // TODO(phase4): drop toLex once GeneratorView prop emits #/lexicons views
+  const moderationUi = moderateFeedGenerator(
+    toLex(generator),
+    moderationOpts,
+  ).ui('avatar')
 
   const onPress = () => {
     if (disabled) return

src/components/TrendingTopics.tsx

@@ -1,5 +1,5 @@
 import {useEffect, useMemo} from 'react'
-import {type AppBskyUnspeccedDefs, type AtUri} from '@atproto/api'
+import {type AtUri} from '@atproto/syntax'
 import {useLingui} from '@lingui/react/macro'
 
 import {PressableScale} from '#/lib/custom-animations/PressableScale'
@@ -9,6 +9,7 @@ import {useCallOnce} from '#/lib/once'
 import {native} from '#/alf'
 import {Link as InternalLink, type LinkProps} from '#/components/Link'
 import {type Metrics, useAnalytics} from '#/analytics'
+import {type app} from '#/lexicons'
 
 export function TrendingTopicLink({
   topic: raw,
@@ -18,7 +19,7 @@ export function TrendingTopicLink({
   children,
   ...rest
 }: {
-  topic: AppBskyUnspeccedDefs.TrendView
+  topic: app.bsky.unspecced.defs.TrendView
   metricContext: Metrics['trendingTopic:seen']['context']
   rank: number
   recId?: string
@@ -75,7 +76,7 @@ type ParsedTrendingTopic =
     }
 
 export function useTopic(
-  raw: AppBskyUnspeccedDefs.TrendView,
+  raw: app.bsky.unspecced.defs.TrendView,
 ): ParsedTrendingTopic {
   const {t: l} = useLingui()
   return useMemo(() => {

src/components/VideoPostCard.tsx

@@ -6,9 +6,8 @@ import {
   type AppBskyActorDefs,
   AppBskyEmbedVideo,
   type AppBskyFeedDefs,
-  AppBskyFeedPost,
-  type ModerationDecision,
 } from '@atproto/api'
+import {type ModerationDecision} from '@bsky.app/sdk/moderation'
 import {useLingui} from '@lingui/react/macro'
 
 import {sanitizeHandle} from '#/lib/strings/handles'
@@ -26,6 +25,7 @@ import {Link} from '#/components/Link'
 import {MediaInsetBorder} from '#/components/MediaInsetBorder'
 import * as Hider from '#/components/moderation/Hider'
 import {Text} from '#/components/Typography'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 function getBlackColor(t: ReturnType<typeof useTheme>) {
@@ -78,10 +78,7 @@ export function VideoPostCard({
   if (!AppBskyEmbedVideo.isView(embed)) return null
 
   const author = post.author
-  const text = bsky.dangerousIsType<AppBskyFeedPost.Record>(
-    post.record,
-    AppBskyFeedPost.isRecord,
-  )
+  const text = bsky.isType(app.bsky.feed.post, post.record)
     ? post.record?.text
     : ''
   const likeCount = post?.likeCount ?? 0

src/components/WhoCanReply.tsx

@@ -6,12 +6,8 @@ import {
   View,
   type ViewStyle,
 } from 'react-native'
-import {
-  type AppBskyFeedDefs,
-  AppBskyFeedPost,
-  type AppBskyGraphDefs,
-  AtUri,
-} from '@atproto/api'
+import {type AppBskyFeedDefs, type AppBskyGraphDefs} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -38,6 +34,7 @@ import {InlineLinkText} from '#/components/Link'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
 import {IS_NATIVE} from '#/env'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 interface WhoCanReplyProps {
@@ -58,10 +55,7 @@ export function WhoCanReply({post, isThreadAuthor, style}: WhoCanReplyProps) {
    * unexpectedly, we should check to make sure it's for sure the root URI.
    */
   const rootUri =
-    bsky.dangerousIsType<AppBskyFeedPost.Record>(
-      post.record,
-      AppBskyFeedPost.isRecord,
-    ) && post.record.reply?.root
+    bsky.isType(app.bsky.feed.post, post.record) && post.record.reply?.root
       ? post.record.reply.root.uri
       : post.uri
   const settings = useMemo(() => {

src/components/activity-notifications/SubscribeProfileButton.tsx

@@ -1,5 +1,5 @@
 import {useCallback, useEffect, useState} from 'react'
-import {type ModerationOpts} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 
 import {useRequireEmailVerification} from '#/lib/hooks/useRequireEmailVerification'

src/components/activity-notifications/SubscribeProfileDialog.tsx

@@ -3,9 +3,9 @@ import {View} from 'react-native'
 import {
   type AppBskyNotificationDefs,
   type AppBskyNotificationListActivitySubscriptions,
-  type ModerationOpts,
   type Un$Typed,
 } from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/ageAssurance/AgeAssuranceAppealDialog.tsx

@@ -1,13 +1,12 @@
 import {useState} from 'react'
 import {View} from 'react-native'
-import {ToolsOzoneReportDefs} from '@atproto/api'
+import {api} from '@bsky.app/sdk'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
 import {useMutation} from '@tanstack/react-query'
 
-import {BLUESKY_MOD_SERVICE_HEADERS} from '#/lib/constants'
-import {useAgent, useSession} from '#/state/session'
+import {usePdsClient, useSession} from '#/state/session'
 import {atoms as a, useBreakpoints, web} from '#/alf'
 import {AgeAssuranceBadge} from '#/components/ageAssurance/AgeAssuranceBadge'
 import {Button, ButtonIcon, ButtonText} from '#/components/Button'
@@ -17,6 +16,8 @@ import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {logger} from '#/ageAssurance'
 import {useAnalytics} from '#/analytics'
+import {com, tools} from '#/lexicons'
+import {toLex} from '#/types/bsky'
 
 export function AgeAssuranceAppealDialog({
   control,
@@ -42,7 +43,7 @@ function Inner({control}: {control: Dialog.DialogControlProps}) {
   const ax = useAnalytics()
   const {currentAccount} = useSession()
   const {gtPhone} = useBreakpoints()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
 
   const [details, setDetails] = useState('')
   const isInvalid = details.length > 1000
@@ -51,18 +52,18 @@ function Inner({control}: {control: Dialog.DialogControlProps}) {
     mutationFn: async () => {
       ax.metric('ageAssurance:appealDialogSubmit', {})
 
-      await agent.createModerationReport(
-        {
-          reasonType: ToolsOzoneReportDefs.REASONAPPEAL,
+      await pdsClient.call(
+        com.atproto.moderation.createReport,
+        toLex<com.atproto.moderation.createReport.$InputBody>({
+          reasonType: tools.ozone.report.defs.reasonAppeal.value,
           subject: {
             $type: 'com.atproto.admin.defs#repoRef',
             did: currentAccount?.did,
           },
           reason: `AGE_ASSURANCE_INQUIRY: ` + details,
-        },
+        }),
         {
-          encoding: 'application/json',
-          headers: BLUESKY_MOD_SERVICE_HEADERS,
+          service: api.moderation.service,
         },
       )
     },

src/components/ageAssurance/AgeAssuranceInitDialog.tsx

@@ -1,6 +1,5 @@
 import {useState} from 'react'
 import {View} from 'react-native'
-import {XRPCError} from '@atproto/api'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -14,6 +13,7 @@ import {
 import {useGetTimeAgo} from '#/lib/hooks/useTimeAgo'
 import {useTLDs} from '#/lib/hooks/useTLDs'
 import {isEmailMaybeInvalid} from '#/lib/strings/email'
+import {getErrorName, isXrpcError} from '#/lib/xrpc-error'
 import {type AppLanguage} from '#/locale/languages'
 import {useLanguagePrefs} from '#/state/preferences'
 import {useSession} from '#/state/session'
@@ -139,13 +139,14 @@ function Inner() {
         msg`Something went wrong, please try again`,
       )
 
-      if (e instanceof XRPCError) {
-        if (e.error === 'InvalidEmail') {
+      if (isXrpcError(e)) {
+        const errorName = getErrorName(e)
+        if (errorName === 'InvalidEmail') {
           error = _(
             msg`Please enter a valid, non-temporary email address. You may need to access this email in the future.`,
           )
           ax.metric('ageAssurance:initDialogError', {code: 'InvalidEmail'})
-        } else if (e.error === 'DidTooLong') {
+        } else if (errorName === 'DidTooLong') {
           error = (
             <>
               <Trans>

src/components/contacts/screens/ViewMatches.tsx

@@ -2,7 +2,7 @@ import {useCallback, useMemo, useRef, useState} from 'react'
 import {View} from 'react-native'
 import {useSafeAreaInsets} from 'react-native-safe-area-context'
 import * as SMS from 'expo-sms'
-import {type ModerationOpts} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Plural, Trans} from '@lingui/react/macro'

src/components/dialogs/Embed.tsx

@@ -1,6 +1,7 @@
 import {memo, useEffect, useMemo, useState} from 'react'
 import {View} from 'react-native'
-import {type AppBskyActorDefs, type AppBskyFeedPost, AtUri} from '@atproto/api'
+import {type AppBskyActorDefs, type AppBskyFeedPost} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/dialogs/PostInteractionSettingsDialog.tsx

@@ -1,10 +1,7 @@
 import {useCallback, useMemo, useState} from 'react'
 import {LayoutAnimation, Text as NestedText, View} from 'react-native'
-import {
-  type AppBskyFeedDefs,
-  type AppBskyFeedPostgate,
-  AtUri,
-} from '@atproto/api'
+import {type AppBskyFeedDefs, type AppBskyFeedPostgate} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Plural, Trans} from '@lingui/react/macro'

src/components/dialogs/SearchablePeopleList.tsx

@@ -7,7 +7,7 @@ import {
   useState,
 } from 'react'
 import {TextInput, View} from 'react-native'
-import {moderateProfile, type ModerationOpts} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {Plural, Trans, useLingui} from '@lingui/react/macro'
 
 import {createSanitizedDisplayName} from '#/lib/moderation/create-sanitized-display-name'
@@ -33,6 +33,7 @@ import * as ProfileCard from '#/components/ProfileCard'
 import {Text} from '#/components/Typography'
 import {IS_WEB} from '#/env'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 import {AvatarBubbles} from '../AvatarBubbles'
 import {Error} from '../Error'
 import {ProfileBadges} from '../ProfileBadges'
@@ -410,7 +411,8 @@ function DefaultProfileCard({
   const t = useTheme()
   const {t: l} = useLingui()
   const enabled = canBeMessaged(profile)
-  const moderation = moderateProfile(profile, moderationOpts)
+  // TODO(phase4): drop toLex once profile prop emits #/lexicons views
+  const moderation = moderateProfile(toLex(profile), moderationOpts)
   const handle = sanitizeHandle(profile.handle, '@')
   const displayName = createSanitizedDisplayName(
     profile,
@@ -486,7 +488,8 @@ function ExistingChatCard({
       : createSanitizedDisplayName(
           convo.primaryMember,
           true,
-          moderateProfile(convo.primaryMember, moderationOpts).ui(
+          // TODO(phase4): drop toLex once convo primaryMember emits #/lexicons views
+          moderateProfile(toLex(convo.primaryMember), moderationOpts).ui(
             'displayName',
           ),
         )

src/components/dialogs/StarterPackDialog.tsx

@@ -1,9 +1,6 @@
 import {useCallback} from 'react'
 import {View} from 'react-native'
-import {
-  type AppBskyGraphGetStarterPacksWithMembership,
-  AppBskyGraphStarterpack,
-} from '@atproto/api'
+import {type AppBskyGraphGetStarterPacksWithMembership} from '@atproto/api'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Plural, Trans} from '@lingui/react/macro'
@@ -33,6 +30,7 @@ import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
 import {IS_WEB} from '#/env'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 type StarterPackWithMembership =
@@ -324,12 +322,7 @@ function StarterPackItem({
 
   const {record} = starterPack
 
-  if (
-    !bsky.dangerousIsType<AppBskyGraphStarterpack.Record>(
-      record,
-      AppBskyGraphStarterpack.isRecord,
-    )
-  ) {
+  if (!bsky.isType(app.bsky.graph.starterpack, record)) {
     return null
   }
 

src/components/dialogs/lists/CreateListFromStarterPackDialog.tsx

@@ -4,10 +4,10 @@ import {
   type AppBskyGraphDefs,
   type AppBskyGraphListitem,
   type AppBskyGraphStarterpack,
-  AtUri,
   type ComAtprotoRepoApplyWrites,
 } from '@atproto/api'
 import {TID} from '@atproto/common-web'
+import {AtUri} from '@atproto/syntax'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/dialogs/lists/CreateOrEditListDialog.tsx

@@ -1,6 +1,7 @@
 import {useCallback, useEffect, useMemo, useState} from 'react'
 import {View} from 'react-native'
-import {type AppBskyGraphDefs, RichText as RichTextAPI} from '@atproto/api'
+import {type AppBskyGraphDefs} from '@atproto/api'
+import {RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Plural, Trans} from '@lingui/react/macro'
@@ -15,7 +16,7 @@ import {
   useListCreateMutation,
   useListMetadataMutation,
 } from '#/state/queries/list'
-import {useAgent} from '#/state/session'
+import {usePdsClient} from '#/state/session'
 import {ErrorMessage} from '#/view/com/util/error/ErrorMessage'
 import {EditableUserAvatar} from '#/view/com/util/UserAvatar'
 import {atoms as a, useTheme, web} from '#/alf'
@@ -27,6 +28,7 @@ import * as Prompt from '#/components/Prompt'
 import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {IS_WEB} from '#/env'
+import {toLex} from '#/types/bsky'
 
 const DISPLAY_NAME_MAX_GRAPHEMES = 64
 const DESCRIPTION_MAX_GRAPHEMES = 300
@@ -133,7 +135,7 @@ function DialogInner({
 
   const {_} = useLingui()
   const t = useTheme()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
   const control = Dialog.useDialogContext()
   const {
     mutateAsync: createListMutation,
@@ -163,7 +165,11 @@ function DialogInner({
 
     // We want to be working with a blank state here, so let's get the
     // serialized version and turn it back into a RichText
-    const serialized = richTextToString(new RichTextAPI({text, facets}), false)
+    // TODO(phase4): drop toLex once the list view producer emits #/lexicons facets
+    const serialized = richTextToString(
+      new RichTextAPI({text, facets: toLex(facets)}),
+      false,
+    )
 
     const richText = new RichTextAPI({text: serialized})
     richText.detectFacetsWithoutResolution()
@@ -224,7 +230,7 @@ function DialogInner({
         {cleanNewlines: true},
       )
 
-      await richText.detectFacets(agent)
+      await richText.detectFacets(pdsClient)
       richText = shortenLinks(richText)
       richText = stripInvalidMentions(richText)
 
@@ -272,7 +278,7 @@ function DialogInner({
     setImageError,
     activePurpose,
     isCurateList,
-    agent,
+    pdsClient,
     _,
   ])
 

src/components/dialogs/lists/ListAddRemoveUsersDialog.tsx

@@ -1,6 +1,7 @@
 import {useCallback, useMemo} from 'react'
 import {View} from 'react-native'
-import {type AppBskyGraphDefs, type ModerationOpts} from '@atproto/api'
+import {type AppBskyGraphDefs} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/dms/ActionsWrapper.tsx

@@ -1,5 +1,6 @@
 import {View} from 'react-native'
-import {type ChatBskyConvoDefs, type ModerationOpts} from '@atproto/api'
+import {type ChatBskyConvoDefs} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {useLingui} from '@lingui/react/macro'
 
 import {MessageContextMenu} from '#/components/dms/MessageContextMenu'

src/components/dms/ActionsWrapper.web.tsx

@@ -1,6 +1,7 @@
 import {useCallback, useRef, useState} from 'react'
 import {Pressable, View} from 'react-native'
-import {type ChatBskyConvoDefs, type ModerationOpts} from '@atproto/api'
+import {type ChatBskyConvoDefs} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react/macro'
 

src/components/dms/BlockedByListDialog.tsx

@@ -1,6 +1,6 @@
 import {Fragment} from 'react'
 import {View} from 'react-native'
-import {type ModerationCause} from '@atproto/api'
+import {type ModerationCause} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 

src/components/dms/ChatProfileTabs.tsx

@@ -1,7 +1,7 @@
 import {useCallback, useEffect} from 'react'
 import {type ScrollView, View} from 'react-native'
 import Animated, {useAnimatedRef, useSharedValue} from 'react-native-reanimated'
-import {moderateProfile} from '@atproto/api'
+import {moderateProfile} from '@bsky.app/sdk/moderation'
 import {useLingui} from '@lingui/react/macro'
 
 import {HITSLOP_10} from '#/lib/constants'
@@ -15,6 +15,7 @@ import {TimesLarge_Stroke2_Corner0_Rounded as XIcon} from '#/components/icons/Ti
 import * as ProfileCard from '#/components/ProfileCard'
 import {Text} from '#/components/Typography'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 type Props = {
   testID?: string
@@ -89,7 +90,8 @@ function Tab({
   const {t: l} = useLingui()
   const moderationOpts = useModerationOpts()
 
-  const moderation = moderateProfile(profile, moderationOpts!)
+  // TODO(phase4): drop toLex once profile prop emits #/lexicons views
+  const moderation = moderateProfile(toLex(profile), moderationOpts!)
   const displayName = sanitizeDisplayName(
     profile.displayName || sanitizeHandle(profile.handle),
     moderation.ui('displayName'),

src/components/dms/ConvoMenu.tsx

@@ -1,6 +1,6 @@
 import {memo, useCallback} from 'react'
 import {Keyboard, View} from 'react-native'
-import {type ModerationCause} from '@atproto/api'
+import {type ModerationCause} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'
 import {useQueryClient} from '@tanstack/react-query'

src/components/dms/InitiateChatFlow.tsx

@@ -7,7 +7,7 @@ import {
   useState,
 } from 'react'
 import {LayoutAnimation, type TextInput, View} from 'react-native'
-import {moderateProfile, type ModerationOpts} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {Plural, Trans, useLingui} from '@lingui/react/macro'
 
 import {MAX_GROUP_NAME_GRAPHEME_LENGTH} from '#/lib/constants'
@@ -54,6 +54,7 @@ import {Text} from '#/components/Typography'
 import {useAgeAssurance} from '#/ageAssurance'
 import {IS_NATIVE, IS_WEB} from '#/env'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 type NewGroupChatItem = {
   type: 'newGroupChat'
@@ -1070,7 +1071,8 @@ function DefaultProfileCard({
   const t = useTheme()
   const {t: l} = useLingui()
   const enabled = canBeMessaged(profile)
-  const moderation = moderateProfile(profile, moderationOpts)
+  // TODO(phase4): drop toLex once profile prop emits #/lexicons views
+  const moderation = moderateProfile(toLex(profile), moderationOpts)
   const handle = sanitizeHandle(profile.handle, '@')
   const displayName = sanitizeDisplayName(
     profile.displayName || sanitizeHandle(profile.handle),

src/components/dms/MessageContextMenu.tsx

@@ -2,11 +2,9 @@ import {memo, useCallback} from 'react'
 import {Platform} from 'react-native'
 import {type GestureType} from 'react-native-gesture-handler'
 import * as Clipboard from 'expo-clipboard'
-import {
-  type ChatBskyConvoDefs,
-  type ModerationOpts,
-  RichText,
-} from '@atproto/api'
+import {type ChatBskyConvoDefs} from '@atproto/api'
+import {type ModerationOpts} from '@bsky.app/sdk/moderation'
+import {RichText} from '@bsky.app/sdk/richtext'
 import {plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react/macro'
 
@@ -31,6 +29,7 @@ import * as Toast from '#/components/Toast'
 import {useAnalytics} from '#/analytics'
 import {IS_NATIVE} from '#/env'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 import {EmojiReactionPicker} from './EmojiReactionPicker'
 import {canReact, hasReachedReactionLimit} from './util'
 
@@ -88,7 +87,8 @@ export let MessageContextMenu = ({
     const str = richTextToString(
       new RichText({
         text: message.text,
-        facets: message.facets,
+        // TODO(phase4): drop toLex once the message producer emits #/lexicons facets
+        facets: toLex(message.facets),
       }),
       true,
     )

src/components/dms/MessageItem.tsx

@@ -27,9 +27,9 @@ import {
   type ChatBskyActorDefs,
   ChatBskyConvoDefs,
   ChatBskyEmbedJoinLink,
-  moderateProfile,
-  RichText as RichTextAPI,
 } from '@atproto/api'
+import {moderateProfile} from '@bsky.app/sdk/moderation'
+import {RichText as RichTextAPI} from '@bsky.app/sdk/richtext'
 import {plural} from '@lingui/core/macro'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useQueryClient} from '@tanstack/react-query'
@@ -58,6 +58,7 @@ import * as ProfileCard from '#/components/ProfileCard'
 import * as Prompt from '#/components/Prompt'
 import {RichText} from '#/components/RichText'
 import {Text} from '#/components/Typography'
+import {toLex} from '#/types/bsky'
 import {DateDivider} from './DateDivider'
 import {MessageItemEmbed} from './MessageItemEmbed'
 import {MessageItemInviteEmbed} from './MessageItemInviteEmbed'
@@ -335,7 +336,9 @@ let MessageItem = ({
         size={AVATAR_SIZE}
         type={profile.associated?.labeler ? 'labeler' : 'user'}
         onBeforePress={() => unstableCacheProfileView(queryClient, profile)}
-        moderation={moderateProfile(profile, moderationOpts).ui('avatar')}
+        moderation={moderateProfile(toLex(profile), moderationOpts).ui(
+          'avatar',
+        )}
       />
     ) : (
       <ProfileCard.AvatarPlaceholder size={AVATAR_SIZE} />

src/components/dms/MessagesListBlockedFooter.tsx

@@ -1,6 +1,6 @@
 import {useCallback, useMemo} from 'react'
 import {View} from 'react-native'
-import {type ModerationDecision} from '@atproto/api'
+import {type ModerationDecision} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 
 import {useProfileShadow} from '#/state/cache/profile-shadow'

src/components/dms/MessagesListHeader.tsx

@@ -1,6 +1,6 @@
 import {useMemo} from 'react'
 import {View} from 'react-native'
-import {moderateProfile, type ModerationOpts} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {useLingui} from '@lingui/react/macro'
 
 import {createSanitizedDisplayName} from '#/lib/moderation/create-sanitized-display-name'
@@ -21,6 +21,7 @@ import {Link} from '#/components/Link'
 import {ProfileBadges} from '#/components/ProfileBadges'
 import {Text} from '#/components/Typography'
 import {IS_LIQUID_GLASS} from '#/env'
+import {toLex} from '#/types/bsky'
 import {type ConvoWithDetails} from './util'
 
 const PFP_SIZE = 40
@@ -85,7 +86,8 @@ function ProfileHeaderReady({
   const {t: l} = useLingui()
   const profile = useProfileShadow(convo.primaryMember)
 
-  const moderation = moderateProfile(profile, moderationOpts)
+  // TODO(phase4): drop toLex once useProfileShadow emits #/lexicons views
+  const moderation = moderateProfile(toLex(profile), moderationOpts)
 
   const blockInfo = useMemo(() => {
     const modui = moderation.ui('profileView')

src/components/dms/components/GroupChatProfileCard.tsx

@@ -1,5 +1,5 @@
 import {View} from 'react-native'
-import {moderateProfile, type ModerationOpts} from '@atproto/api'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 import {Trans} from '@lingui/react/macro'
 
 import {sanitizeDisplayName} from '#/lib/strings/display-names'
@@ -10,6 +10,7 @@ import * as Toggle from '#/components/forms/Toggle'
 import * as ProfileCard from '#/components/ProfileCard'
 import {Text} from '#/components/Typography'
 import type * as bsky from '#/types/bsky'
+import {toLex} from '#/types/bsky'
 
 export function GroupChatProfileCard({
   profile,
@@ -20,7 +21,8 @@ export function GroupChatProfileCard({
 }) {
   const t = useTheme()
   const enabled = canBeAddedToGroup(profile)
-  const moderation = moderateProfile(profile, moderationOpts)
+  // TODO(phase4): drop toLex once profile prop emits #/lexicons views
+  const moderation = moderateProfile(toLex(profile), moderationOpts)
   const handle = sanitizeHandle(profile.handle, '@')
   const displayName = sanitizeDisplayName(
     profile.displayName || sanitizeHandle(profile.handle),

src/components/dms/util.ts

@@ -1,10 +1,6 @@
-import {
-  type $Typed,
-  ChatBskyActorDefs,
-  ChatBskyConvoDefs,
-  moderateProfile,
-  type ModerationOpts,
-} from '@atproto/api'
+import {type ChatBskyActorDefs, type ChatBskyConvoDefs} from '@atproto/api'
+import {type $Typed} from '@atproto/lex'
+import {moderateProfile, type ModerationOpts} from '@bsky.app/sdk/moderation'
 
 import {EMOJI_REACTION_LIMIT} from '#/lib/constants'
 import {isBlockedOrBlocking} from '#/lib/moderation/blocked-and-muted'
@@ -13,6 +9,7 @@ import {type Shadow} from '#/state/cache/profile-shadow'
 import {type ConvoState, ConvoStatus} from '#/state/messages/convo/types'
 import {platform} from '#/alf'
 import {type ReportSubject} from '#/components/moderation/ReportDialog/types'
+import {chat} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 export const MESSAGE_GAP_THRESHOLD_MS = 60 * 60 * 1000
@@ -158,7 +155,10 @@ export function canReact({
   }
 
   if (primaryMember && moderationOpts) {
-    const moderation = moderateProfile(primaryMember, moderationOpts)
+    const moderation = moderateProfile(
+      bsky.toLex(primaryMember),
+      moderationOpts,
+    )
     if (convoState.convo.kind === 'direct') {
       // Either direction (blocking or blocked-by) hides reactions in 1-1s
       if (moderation.blocked) return false
@@ -206,21 +206,11 @@ export function parseConvoView(
   convoView: ChatBskyConvoDefs.ConvoView,
   ownDid: string | undefined,
 ): ConvoWithDetails | null {
-  if (
-    bsky.dangerousIsType<ChatBskyConvoDefs.GroupConvo>(
-      convoView.kind,
-      ChatBskyConvoDefs.isGroupConvo,
-    )
-  ) {
+  if (bsky.isType(chat.bsky.convo.defs.groupConvo, convoView.kind)) {
     let owner: GroupConvoMember | undefined = undefined
 
     for (const member of convoView.members) {
-      if (
-        bsky.dangerousIsType<ChatBskyActorDefs.GroupConvoMember>(
-          member.kind,
-          ChatBskyActorDefs.isGroupConvoMember,
-        )
-      ) {
+      if (bsky.isType(chat.bsky.actor.defs.groupConvoMember, member.kind)) {
         if (member.kind.role === 'owner') {
           // have to do a type assertion here
           // this works: {...member, kind: member.kind}
@@ -242,12 +232,7 @@ export function parseConvoView(
       primaryMember: owner,
       members: convoView.members as Array<GroupConvoMember>,
     }
-  } else if (
-    bsky.dangerousIsType<ChatBskyConvoDefs.DirectConvo>(
-      convoView.kind,
-      ChatBskyConvoDefs.isDirectConvo,
-    )
-  ) {
+  } else if (bsky.isType(chat.bsky.convo.defs.directConvo, convoView.kind)) {
     const otherUser = convoView.members.find(m => m.did !== ownDid)
 
     if (!otherUser) {
@@ -290,7 +275,7 @@ export function getConvoReportSubject(
 
   const lastMessage = convo.view.lastMessage
   const reportableMessage =
-    ChatBskyConvoDefs.isMessageView(lastMessage) &&
+    bsky.isType(chat.bsky.convo.defs.messageView, lastMessage) &&
     lastMessage.sender?.did !== ownDid
       ? lastMessage
       : null

src/components/images/Gallery/maybeApplyGalleryOffsetStyles.ts

@@ -1,16 +1,10 @@
-import {
-  AppBskyEmbedGallery,
-  AppBskyEmbedImages,
-  AppBskyEmbedRecordWithMedia,
-  type AppBskyFeedDefs,
-  AppBskyFeedPost,
-  type ModerationCause,
-  type ModerationUI,
-} from '@atproto/api'
+import {type AppBskyFeedDefs} from '@atproto/api'
+import {type ModerationCause, type ModerationUI} from '@bsky.app/sdk/moderation'
 
 import {unique} from '#/lib/moderation'
 import {type AppModerationCause} from '#/components/Pills'
 import {Features, features} from '#/analytics/features'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 export const POST_META_NO_CONTENT_OFFSET = {paddingTop: 10}
@@ -28,12 +22,7 @@ export function maybeApplyGalleryOffsetStyles(
     additionalCauses?: ModerationCause[] | AppModerationCause[]
   },
 ) {
-  if (
-    !bsky.dangerousIsType<AppBskyFeedPost.Record>(
-      post.record,
-      AppBskyFeedPost.isRecord,
-    )
-  ) {
+  if (!bsky.isType(app.bsky.feed.post, post.record)) {
     return
   }
 
@@ -48,24 +37,10 @@ export function maybeApplyGalleryOffsetStyles(
    * First check if we even have images
    */
   const embed = post.record.embed
-  const isImageEmbed =
-    embed &&
-    bsky.dangerousIsType<AppBskyEmbedImages.Main>(
-      embed,
-      AppBskyEmbedImages.isMain,
-    )
-  const isGalleryEmbed =
-    embed &&
-    bsky.dangerousIsType<AppBskyEmbedGallery.Main>(
-      embed,
-      AppBskyEmbedGallery.isMain,
-    )
+  const isImageEmbed = embed && bsky.isType(app.bsky.embed.images, embed)
+  const isGalleryEmbed = embed && bsky.isType(app.bsky.embed.gallery, embed)
   const isRecordWithMedia =
-    embed &&
-    bsky.dangerousIsType<AppBskyEmbedRecordWithMedia.Main>(
-      embed,
-      AppBskyEmbedRecordWithMedia.isMain,
-    )
+    embed && bsky.isType(app.bsky.embed.recordWithMedia, embed)
   let hasImages = false
   if (isImageEmbed) {
     if (!isPostGalleryEmbedEnabled) return
@@ -79,22 +54,12 @@ export function maybeApplyGalleryOffsetStyles(
     hasImages = true
   }
   if (isRecordWithMedia) {
-    if (
-      bsky.dangerousIsType<AppBskyEmbedImages.Main>(
-        embed.media,
-        AppBskyEmbedImages.isMain,
-      )
-    ) {
+    if (bsky.isType(app.bsky.embed.images, embed.media)) {
       if (!isPostGalleryEmbedEnabled) return
       // one image, not a gallery
       if (embed.media.images.length === 1) return
     }
-    if (
-      bsky.dangerousIsType<AppBskyEmbedGallery.Main>(
-        embed.media,
-        AppBskyEmbedGallery.isMain,
-      )
-    ) {
+    if (bsky.isType(app.bsky.embed.gallery, embed.media)) {
       // single (or empty) gallery - no offset needed
       if (embed.media.items.length <= 1) return
     }

src/components/intents/GroupChatJoinDialog.tsx

@@ -4,8 +4,8 @@ import {
   ChatBskyGroupDefs,
   ChatBskyGroupRequestJoin,
   ChatBskyGroupWithdrawJoinRequest,
-  moderateProfile,
 } from '@atproto/api'
+import {moderateProfile} from '@bsky.app/sdk/moderation'
 import {Plural, Trans, useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'
 import {useQueryClient} from '@tanstack/react-query'
@@ -49,6 +49,7 @@ import {Loader} from '#/components/Loader'
 import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
+import {toLex} from '#/types/bsky'
 import {ProfileBadges} from '../ProfileBadges'
 
 export function GroupChatJoinDialog() {
@@ -406,9 +407,11 @@ function GroupChatJoinDialogContent({code}: {code?: string}) {
                   {createSanitizedDisplayName(
                     joinLinkPreview.owner,
                     true,
-                    moderateProfile(joinLinkPreview.owner, moderationOpts).ui(
-                      'displayName',
-                    ),
+                    // TODO(phase4): drop toLex once join link preview emits #/lexicons views
+                    moderateProfile(
+                      toLex(joinLinkPreview.owner),
+                      moderationOpts,
+                    ).ui('displayName'),
                   )}
                 </InlineLinkText>
               </Trans>

src/components/interstitials/TrendingVideos.tsx

@@ -1,6 +1,7 @@
 import {useCallback, useEffect, useMemo} from 'react'
 import {ScrollView, View} from 'react-native'
-import {AppBskyEmbedVideo, AtUri} from '@atproto/api'
+import {AppBskyEmbedVideo} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useQueryClient} from '@tanstack/react-query'
 

src/components/moderation/AppealForm.tsx

@@ -1,7 +1,6 @@
 import {useState} from 'react'
 import {View} from 'react-native'
-import {type ComAtprotoLabelDefs, ToolsOzoneReportDefs} from '@atproto/api'
-import {XRPCError} from '@atproto/api'
+import {type Service} from '@atproto/lex-client'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -11,8 +10,9 @@ import {useLabelSubject} from '#/lib/moderation'
 import {useLabelInfo} from '#/lib/moderation/useLabelInfo'
 import {makeProfileLink} from '#/lib/routes/links'
 import {sanitizeHandle} from '#/lib/strings/handles'
+import {getErrorName, isXrpcError} from '#/lib/xrpc-error'
 import {logger} from '#/logger'
-import {useAgent} from '#/state/session'
+import {usePdsClient} from '#/state/session'
 import {atoms as a, useBreakpoints} from '#/alf'
 import {Admonition} from '#/components/Admonition'
 import {Button, ButtonIcon, ButtonText} from '#/components/Button'
@@ -22,13 +22,15 @@ import {Loader} from '#/components/Loader'
 import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
 import {IS_ANDROID} from '#/env'
+import {com, tools} from '#/lexicons'
+import {toLex} from '#/types/bsky'
 
 export function AppealForm({
   label,
   control,
   onPressBack,
 }: {
-  label: ComAtprotoLabelDefs.Label
+  label: com.atproto.label.defs.Label
   control: Dialog.DialogOuterProps['control']
   onPressBack: () => void
 }) {
@@ -38,7 +40,7 @@ export function AppealForm({
   const [details, setDetails] = useState('')
   const {subject} = useLabelSubject({label})
   const isAccountReport = 'did' in subject
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
   const sourceName = labeler
     ? sanitizeHandle(labeler.creator.handle, '@')
     : label.src
@@ -49,25 +51,23 @@ export function AppealForm({
       const $type = !isAccountReport
         ? 'com.atproto.repo.strongRef'
         : 'com.atproto.admin.defs#repoRef'
-      await agent.createModerationReport(
-        {
-          reasonType: ToolsOzoneReportDefs.REASONAPPEAL,
+      await pdsClient.call(
+        com.atproto.moderation.createReport,
+        toLex<com.atproto.moderation.createReport.$InputBody>({
+          reasonType: tools.ozone.report.defs.reasonAppeal.value,
           subject: {
             $type,
             ...subject,
           },
           reason: details,
-        },
+        }),
         {
-          encoding: 'application/json',
-          headers: {
-            'atproto-proxy': `${label.src}#atproto_labeler`,
-          },
+          service: `${label.src}#atproto_labeler` as Service,
         },
       )
     },
     onError: err => {
-      if (err instanceof XRPCError && err.error === 'AlreadyAppealed') {
+      if (isXrpcError(err) && getErrorName(err) === 'AlreadyAppealed') {
         setError(
           _(
             msg`You've already appealed this label and it's being reviewed by our moderation team.`,

src/components/moderation/ContentHider.tsx

@@ -5,7 +5,7 @@ import {
   View,
   type ViewStyle,
 } from 'react-native'
-import {type ModerationUI} from '@atproto/api'
+import {type ModerationUI} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 
 import {

src/components/moderation/Hider.tsx

@@ -1,5 +1,5 @@
 import {createContext, useContext, useState} from 'react'
-import {type ModerationUI} from '@atproto/api'
+import {type ModerationUI} from '@bsky.app/sdk/moderation'
 
 import {
   type ModerationCauseDescription,

src/components/moderation/LabelPreference.tsx

@@ -2,7 +2,7 @@ import {View} from 'react-native'
 import {
   type InterpretedLabelValueDefinition,
   type LabelPreference,
-} from '@atproto/api'
+} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/moderation/ModerationDetailsDialog.tsx

@@ -1,6 +1,6 @@
 import {useState} from 'react'
 import {View} from 'react-native'
-import {type ModerationCause} from '@atproto/api'
+import {type ModerationCause} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/moderation/PostAlerts.tsx

@@ -1,10 +1,6 @@
 import {type StyleProp, View, type ViewStyle} from 'react-native'
-import {
-  type AppBskyFeedDefs,
-  type ComAtprotoLabelDefs,
-  type ModerationCause,
-  type ModerationUI,
-} from '@atproto/api'
+import {type AppBskyFeedDefs, type ComAtprotoLabelDefs} from '@atproto/api'
+import {type ModerationCause, type ModerationUI} from '@bsky.app/sdk/moderation'
 import {plural} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react/macro'
 
@@ -20,6 +16,7 @@ import {
   useLabelsOnMeDialogControl,
 } from '#/components/moderation/LabelsOnMeDialog'
 import * as Pills from '#/components/Pills'
+import {toLex} from '#/types/bsky'
 
 export function PostAlerts({
   post,
@@ -71,7 +68,8 @@ export function PostAlerts({
    */
   const shownCauses = [...alerts, ...informs, ...modui.blurs]
   const additionalLabels = filterUserFacingLabels(
-    allLabels,
+    // TODO(phase4): drop toLex once PostView labels are #/lexicons-typed
+    toLex(allLabels),
     currentAccount?.did,
   ).filter(label =>
     shownCauses.every(

src/components/moderation/PostHider.tsx

@@ -7,11 +7,8 @@ import {
   View,
   type ViewStyle,
 } from 'react-native'
-import {
-  type AppBskyActorDefs,
-  type ModerationCause,
-  type ModerationUI,
-} from '@atproto/api'
+import {type AppBskyActorDefs} from '@atproto/api'
+import {type ModerationCause, type ModerationUI} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'

src/components/moderation/ProfileHeaderAlerts.tsx

@@ -1,5 +1,5 @@
 import {type StyleProp, type ViewStyle} from 'react-native'
-import {type ModerationDecision} from '@atproto/api'
+import {type ModerationDecision} from '@bsky.app/sdk/moderation'
 
 import {getModerationCauseKey, unique} from '#/lib/moderation'
 import * as Pills from '#/components/Pills'

src/components/moderation/ReportDialog/action.ts

@@ -1,21 +1,21 @@
-import {
-  type $Typed,
-  type ChatBskyConvoDefs,
-  type ComAtprotoModerationCreateReport,
-} from '@atproto/api'
+import {type Service} from '@atproto/lex-client'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {useMutation} from '@tanstack/react-query'
 
 import {logger} from '#/logger'
-import {useAgent} from '#/state/session'
+import {usePdsClient} from '#/state/session'
+import {com} from '#/lexicons'
+import {toLex} from '#/types/bsky'
 import {NEW_TO_OLD_REASONS_MAP} from './const'
 import {type ReportState} from './state'
 import {type ParsedReportSubject} from './types'
 
+type CreateReportBody = com.atproto.moderation.createReport.$InputBody
+
 export function useSubmitReportMutation() {
   const {_} = useLingui()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
 
   return useMutation({
     async mutationFn({
@@ -52,13 +52,17 @@ export function useSubmitReportMutation() {
         reasonType = backwardsCompatibleReasonType
       }
 
-      let report:
-        | ComAtprotoModerationCreateReport.InputSchema
-        | (Omit<ComAtprotoModerationCreateReport.InputSchema, 'subject'> & {
-            subject:
-              | $Typed<ChatBskyConvoDefs.MessageRef>
-              | $Typed<ChatBskyConvoDefs.ConvoRef>
-          })
+      /*
+       * The generated `createReport` subject union only declares repoRef and
+       * strongRef with branded did/uri strings; chat subjects (message/convo
+       * refs) are accepted on the wire but not in the lexicon, and the subject
+       * ids we hold here are plain strings. We build the body against a loose
+       * subject shape and `toLex` it to the schema body at the call boundary
+       * (matching the old widened-InputSchema shape).
+       */
+      let report: Omit<CreateReportBody, 'subject'> & {
+        subject: {$type: string} & Record<string, unknown>
+      }
 
       switch (subject.type) {
         case 'account': {
@@ -123,12 +127,19 @@ export function useSubmitReportMutation() {
           report,
         })
       } else {
-        await agent.createModerationReport(report, {
-          encoding: 'application/json',
-          headers: {
-            'atproto-proxy': `${labeler.creator.did}#atproto_labeler`,
+        /*
+         * Route the report through the selected labeler's moderation service
+         * via the `atproto-proxy` header, which lex-client sets from the
+         * per-call `service` option (previously an explicit header on the
+         * bridge agent).
+         */
+        await pdsClient.call(
+          com.atproto.moderation.createReport,
+          toLex<CreateReportBody>(report),
+          {
+            service: `${labeler.creator.did}#atproto_labeler` as Service,
           },
-        })
+        )
       }
     },
   })

src/components/moderation/ReportDialog/const.ts

@@ -1,9 +1,11 @@
-import {
-  ComAtprotoModerationDefs as RootReportDefs,
-  ToolsOzoneReportDefs as OzoneReportDefs,
-} from '@atproto/api'
-
 import {type ParsedReportSubject} from '#/components/moderation/ReportDialog/types'
+import {com, tools} from '#/lexicons'
+
+const OzoneReportDefs = tools.ozone.report.defs
+const RootReportDefs = com.atproto.moderation.defs
+
+type OzoneReasonType = tools.ozone.report.defs.ReasonType
+type RootReasonType = com.atproto.moderation.defs.ReasonType
 
 export const DMCA_LINK = 'https://bsky.social/about/support/copyright'
 export const SUPPORT_PAGE = 'https://bsky.social/about/support'
@@ -17,60 +19,87 @@ export const NEW_TO_OLD_REASON_MAPPING: Record<string, string> = {}
  * Matches the mapping defined in the Ozone codebase:
  * @see https://github.com/bluesky-social/atproto/blob/4c15fb47cec26060bff2e710e95869a90c9d7fdd/packages/ozone/src/mod-service/profile.ts#L16-L64
  */
-export const NEW_TO_OLD_REASONS_MAP: Record<
-  OzoneReportDefs.ReasonType,
-  RootReportDefs.ReasonType
-> = {
-  [OzoneReportDefs.REASONAPPEAL]: RootReportDefs.REASONAPPEAL,
-  [OzoneReportDefs.REASONOTHER]: RootReportDefs.REASONOTHER,
+export const NEW_TO_OLD_REASONS_MAP: Record<OzoneReasonType, RootReasonType> = {
+  [OzoneReportDefs.reasonAppeal.value]: RootReportDefs.reasonAppeal.value,
+  [OzoneReportDefs.reasonOther.value]: RootReportDefs.reasonOther.value,
 
-  [OzoneReportDefs.REASONVIOLENCEANIMAL]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONVIOLENCETHREATS]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONVIOLENCEGRAPHICCONTENT]:
-    RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONVIOLENCEGLORIFICATION]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONVIOLENCEEXTREMISTCONTENT]:
-    RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONVIOLENCETRAFFICKING]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONVIOLENCEOTHER]: RootReportDefs.REASONVIOLATION,
+  [OzoneReportDefs.reasonViolenceAnimal.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonViolenceThreats.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonViolenceGraphicContent.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonViolenceGlorification.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonViolenceExtremistContent.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonViolenceTrafficking.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonViolenceOther.value]:
+    RootReportDefs.reasonViolation.value,
 
-  [OzoneReportDefs.REASONSEXUALABUSECONTENT]: RootReportDefs.REASONSEXUAL,
-  [OzoneReportDefs.REASONSEXUALNCII]: RootReportDefs.REASONSEXUAL,
-  [OzoneReportDefs.REASONSEXUALDEEPFAKE]: RootReportDefs.REASONSEXUAL,
-  [OzoneReportDefs.REASONSEXUALANIMAL]: RootReportDefs.REASONSEXUAL,
-  [OzoneReportDefs.REASONSEXUALUNLABELED]: RootReportDefs.REASONSEXUAL,
-  [OzoneReportDefs.REASONSEXUALOTHER]: RootReportDefs.REASONSEXUAL,
+  [OzoneReportDefs.reasonSexualAbuseContent.value]:
+    RootReportDefs.reasonSexual.value,
+  [OzoneReportDefs.reasonSexualNCII.value]: RootReportDefs.reasonSexual.value,
+  [OzoneReportDefs.reasonSexualDeepfake.value]:
+    RootReportDefs.reasonSexual.value,
+  [OzoneReportDefs.reasonSexualAnimal.value]: RootReportDefs.reasonSexual.value,
+  [OzoneReportDefs.reasonSexualUnlabeled.value]:
+    RootReportDefs.reasonSexual.value,
+  [OzoneReportDefs.reasonSexualOther.value]: RootReportDefs.reasonSexual.value,
 
-  [OzoneReportDefs.REASONCHILDSAFETYCSAM]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONCHILDSAFETYGROOM]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONCHILDSAFETYPRIVACY]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONCHILDSAFETYHARASSMENT]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONCHILDSAFETYOTHER]: RootReportDefs.REASONVIOLATION,
+  [OzoneReportDefs.reasonChildSafetyCSAM.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonChildSafetyGroom.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonChildSafetyPrivacy.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonChildSafetyHarassment.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonChildSafetyOther.value]:
+    RootReportDefs.reasonViolation.value,
 
-  [OzoneReportDefs.REASONHARASSMENTTROLL]: RootReportDefs.REASONRUDE,
-  [OzoneReportDefs.REASONHARASSMENTTARGETED]: RootReportDefs.REASONRUDE,
-  [OzoneReportDefs.REASONHARASSMENTHATESPEECH]: RootReportDefs.REASONRUDE,
-  [OzoneReportDefs.REASONHARASSMENTDOXXING]: RootReportDefs.REASONRUDE,
-  [OzoneReportDefs.REASONHARASSMENTOTHER]: RootReportDefs.REASONRUDE,
+  [OzoneReportDefs.reasonHarassmentTroll.value]:
+    RootReportDefs.reasonRude.value,
+  [OzoneReportDefs.reasonHarassmentTargeted.value]:
+    RootReportDefs.reasonRude.value,
+  [OzoneReportDefs.reasonHarassmentHateSpeech.value]:
+    RootReportDefs.reasonRude.value,
+  [OzoneReportDefs.reasonHarassmentDoxxing.value]:
+    RootReportDefs.reasonRude.value,
+  [OzoneReportDefs.reasonHarassmentOther.value]:
+    RootReportDefs.reasonRude.value,
 
-  [OzoneReportDefs.REASONMISLEADINGBOT]: RootReportDefs.REASONMISLEADING,
-  [OzoneReportDefs.REASONMISLEADINGIMPERSONATION]:
-    RootReportDefs.REASONMISLEADING,
-  [OzoneReportDefs.REASONMISLEADINGSPAM]: RootReportDefs.REASONSPAM,
-  [OzoneReportDefs.REASONMISLEADINGSCAM]: RootReportDefs.REASONMISLEADING,
-  [OzoneReportDefs.REASONMISLEADINGELECTIONS]: RootReportDefs.REASONMISLEADING,
-  [OzoneReportDefs.REASONMISLEADINGOTHER]: RootReportDefs.REASONMISLEADING,
+  [OzoneReportDefs.reasonMisleadingBot.value]:
+    RootReportDefs.reasonMisleading.value,
+  [OzoneReportDefs.reasonMisleadingImpersonation.value]:
+    RootReportDefs.reasonMisleading.value,
+  [OzoneReportDefs.reasonMisleadingSpam.value]: RootReportDefs.reasonSpam.value,
+  [OzoneReportDefs.reasonMisleadingScam.value]:
+    RootReportDefs.reasonMisleading.value,
+  [OzoneReportDefs.reasonMisleadingElections.value]:
+    RootReportDefs.reasonMisleading.value,
+  [OzoneReportDefs.reasonMisleadingOther.value]:
+    RootReportDefs.reasonMisleading.value,
 
-  [OzoneReportDefs.REASONRULESITESECURITY]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONRULEPROHIBITEDSALES]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONRULEBANEVASION]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONRULEOTHER]: RootReportDefs.REASONVIOLATION,
+  [OzoneReportDefs.reasonRuleSiteSecurity.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonRuleProhibitedSales.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonRuleBanEvasion.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonRuleOther.value]: RootReportDefs.reasonViolation.value,
 
-  [OzoneReportDefs.REASONSELFHARMCONTENT]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONSELFHARMED]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONSELFHARMSTUNTS]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONSELFHARMSUBSTANCES]: RootReportDefs.REASONVIOLATION,
-  [OzoneReportDefs.REASONSELFHARMOTHER]: RootReportDefs.REASONVIOLATION,
+  [OzoneReportDefs.reasonSelfHarmContent.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonSelfHarmED.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonSelfHarmStunts.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonSelfHarmSubstances.value]:
+    RootReportDefs.reasonViolation.value,
+  [OzoneReportDefs.reasonSelfHarmOther.value]:
+    RootReportDefs.reasonViolation.value,
 }
 
 /**
@@ -78,43 +107,45 @@ export const NEW_TO_OLD_REASONS_MAP: Record<
  * @see https://github.com/bluesky-social/proposals/tree/main/0009-mod-report-granularity#backwards-compatibility
  */
 export const OLD_TO_NEW_REASONS_MAP: Record<
-  Exclude<RootReportDefs.ReasonType, OzoneReportDefs.ReasonType>,
-  OzoneReportDefs.ReasonType
+  Exclude<RootReasonType, OzoneReasonType>,
+  OzoneReasonType
 > = {
-  [RootReportDefs.REASONSPAM]: [OzoneReportDefs.REASONMISLEADINGSPAM],
-  [RootReportDefs.REASONVIOLATION]: [OzoneReportDefs.REASONRULEOTHER],
-  [RootReportDefs.REASONMISLEADING]: [OzoneReportDefs.REASONMISLEADINGOTHER],
-  [RootReportDefs.REASONSEXUAL]: [OzoneReportDefs.REASONSEXUALUNLABELED],
-  [RootReportDefs.REASONRUDE]: [OzoneReportDefs.REASONHARASSMENTOTHER],
-  [RootReportDefs.REASONOTHER]: [OzoneReportDefs.REASONOTHER],
-  [RootReportDefs.REASONAPPEAL]: [OzoneReportDefs.REASONAPPEAL],
+  [RootReportDefs.reasonSpam.value]: OzoneReportDefs.reasonMisleadingSpam.value,
+  [RootReportDefs.reasonViolation.value]: OzoneReportDefs.reasonRuleOther.value,
+  [RootReportDefs.reasonMisleading.value]:
+    OzoneReportDefs.reasonMisleadingOther.value,
+  [RootReportDefs.reasonSexual.value]:
+    OzoneReportDefs.reasonSexualUnlabeled.value,
+  [RootReportDefs.reasonRude.value]:
+    OzoneReportDefs.reasonHarassmentOther.value,
+  [RootReportDefs.reasonOther.value]: OzoneReportDefs.reasonOther.value,
+  [RootReportDefs.reasonAppeal.value]: OzoneReportDefs.reasonAppeal.value,
 }
 
 /**
  * Set of report reasons that should optionally include additional details from
  * the reporter.
  */
-export const OTHER_REPORT_REASONS: Set<OzoneReportDefs.ReasonType> = new Set([
-  OzoneReportDefs.REASONVIOLENCEOTHER,
-  OzoneReportDefs.REASONSEXUALOTHER,
-  OzoneReportDefs.REASONCHILDSAFETYOTHER,
-  OzoneReportDefs.REASONHARASSMENTOTHER,
-  OzoneReportDefs.REASONMISLEADINGOTHER,
-  OzoneReportDefs.REASONRULEOTHER,
-  OzoneReportDefs.REASONSELFHARMOTHER,
-  OzoneReportDefs.REASONOTHER,
+export const OTHER_REPORT_REASONS: Set<OzoneReasonType> = new Set([
+  OzoneReportDefs.reasonViolenceOther.value,
+  OzoneReportDefs.reasonSexualOther.value,
+  OzoneReportDefs.reasonChildSafetyOther.value,
+  OzoneReportDefs.reasonHarassmentOther.value,
+  OzoneReportDefs.reasonMisleadingOther.value,
+  OzoneReportDefs.reasonRuleOther.value,
+  OzoneReportDefs.reasonSelfHarmOther.value,
+  OzoneReportDefs.reasonOther.value,
 ])
 
 /**
  * Set of report reasons that should only be sent to Bluesky's moderation service.
  */
-export const BSKY_LABELER_ONLY_REPORT_REASONS: Set<OzoneReportDefs.ReasonType> =
-  new Set([
-    OzoneReportDefs.REASONCHILDSAFETYCSAM,
-    OzoneReportDefs.REASONCHILDSAFETYGROOM,
-    OzoneReportDefs.REASONCHILDSAFETYOTHER,
-    OzoneReportDefs.REASONVIOLENCEEXTREMISTCONTENT,
-  ])
+export const BSKY_LABELER_ONLY_REPORT_REASONS: Set<OzoneReasonType> = new Set([
+  OzoneReportDefs.reasonChildSafetyCSAM.value,
+  OzoneReportDefs.reasonChildSafetyGroom.value,
+  OzoneReportDefs.reasonChildSafetyOther.value,
+  OzoneReportDefs.reasonViolenceExtremistContent.value,
+])
 
 /**
  * Set of _parsed_ subject types that should only be sent to Bluesky's

src/components/moderation/ReportDialog/index.tsx

@@ -7,7 +7,7 @@ import {
   useState,
 } from 'react'
 import {Pressable, type ScrollView, View} from 'react-native'
-import {type AppBskyLabelerDefs, BSKY_LABELER_DID} from '@atproto/api'
+import {api} from '@bsky.app/sdk'
 import {Trans, useLingui} from '@lingui/react/macro'
 
 import {wait} from '#/lib/async/wait'
@@ -36,6 +36,7 @@ import {Loader} from '#/components/Loader'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
 import {IS_NATIVE} from '#/env'
+import {type app} from '#/lexicons'
 import {useSubmitReportMutation} from './action'
 import {
   BSKY_LABELER_ONLY_REPORT_REASONS,
@@ -184,7 +185,7 @@ function Inner(props: ReportDialogProps) {
       .filter(l => {
         if (!state.selectedOption) return false
         if (isBskyOnlyReason || isBskyOnlySubject) {
-          return l.creator.did === BSKY_LABELER_DID
+          return l.creator.did === api.moderation.did
         }
         const supportedReasonTypes: string[] | undefined = l.reasonTypes
         if (supportedReasonTypes === undefined) return true
@@ -932,8 +933,8 @@ function LabelerCard({
   labeler,
   onSelect,
 }: {
-  labeler: AppBskyLabelerDefs.LabelerViewDetailed
-  onSelect?: (option: AppBskyLabelerDefs.LabelerViewDetailed) => void
+  labeler: app.bsky.labeler.defs.LabelerViewDetailed
+  onSelect?: (option: app.bsky.labeler.defs.LabelerViewDetailed) => void
 }) {
   const t = useTheme()
   const {t: l} = useLingui()

src/components/moderation/ReportDialog/state.ts

@@ -1,13 +1,11 @@
-import {
-  type AppBskyLabelerDefs,
-  ToolsOzoneReportDefs as OzoneReportDefs,
-} from '@atproto/api'
-
 import {OTHER_REPORT_REASONS} from '#/components/moderation/ReportDialog/const'
 import {
   type ReportCategoryConfig,
   type ReportOption,
 } from '#/components/moderation/ReportDialog/utils/useReportOptions'
+import {type app, tools} from '#/lexicons'
+
+const OzoneReportDefs = tools.ozone.report.defs
 
 export type NciiQualification = {
   isDepicted?: boolean
@@ -16,7 +14,7 @@ export type NciiQualification = {
 export type ReportState = {
   selectedCategory?: ReportCategoryConfig
   selectedOption?: ReportOption
-  selectedLabeler?: AppBskyLabelerDefs.LabelerViewDetailed
+  selectedLabeler?: app.bsky.labeler.defs.LabelerViewDetailed
   details?: string
   detailsOpen: boolean
   activeStepIndex1: number
@@ -66,7 +64,7 @@ export type ReportAction =
     }
   | {
       type: 'selectLabeler'
-      labeler: AppBskyLabelerDefs.LabelerViewDetailed
+      labeler: app.bsky.labeler.defs.LabelerViewDetailed
     }
   | {
       type: 'clearLabeler'
@@ -116,7 +114,8 @@ export function reducer(state: ReportState, action: ReportAction): ReportState {
         ncii: undefined,
       }
     case 'selectOption': {
-      const isNcii = action.option.reason === OzoneReportDefs.REASONSEXUALNCII
+      const isNcii =
+        action.option.reason === OzoneReportDefs.reasonSexualNCII.value
       return {
         ...state,
         selectedOption: action.option,

src/components/moderation/ReportDialog/utils/parseReportSubject.ts

@@ -1,46 +1,56 @@
-import {
-  AppBskyActorDefs,
-  AppBskyFeedDefs,
-  AppBskyFeedPost,
-  AppBskyGraphDefs,
-} from '@atproto/api'
-
 import {
   type ParsedReportSubject,
   type ReportSubject,
 } from '#/components/moderation/ReportDialog/types'
+import {app} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 
 export function parseReportSubject(
-  subject: ReportSubject,
+  rawSubject: ReportSubject,
 ): ParsedReportSubject | undefined {
-  if (!subject) return
+  if (!rawSubject) return
 
-  if ('convoId' in subject) {
-    if ('message' in subject) {
+  if ('convoId' in rawSubject) {
+    if ('message' in rawSubject) {
       return {
         type: 'convoMessage',
-        ...subject,
+        ...rawSubject,
       }
     }
     return {
       type: 'convo',
-      convoId: subject.convoId,
-      did: subject.did,
+      convoId: rawSubject.convoId,
+      did: rawSubject.did,
     }
   }
 
+  /*
+   * TODO(phase4): drop toLex once ReportSubject is a #/lexicons union. The view
+   * subjects are structurally the #/lexicons shapes; we bridge here so the
+   * `isType` schema guards below narrow against the lexicon `$type`s.
+   */
+  const subject = bsky.toLex<
+    | app.bsky.actor.defs.ProfileViewBasic
+    | app.bsky.actor.defs.ProfileView
+    | app.bsky.actor.defs.ProfileViewDetailed
+    | app.bsky.actor.defs.StatusView
+    | app.bsky.graph.defs.ListView
+    | app.bsky.feed.defs.GeneratorView
+    | app.bsky.graph.defs.StarterPackView
+    | app.bsky.feed.defs.PostView
+  >(rawSubject)
+
   if (
-    AppBskyActorDefs.isProfileViewBasic(subject) ||
-    AppBskyActorDefs.isProfileView(subject) ||
-    AppBskyActorDefs.isProfileViewDetailed(subject)
+    bsky.isType(app.bsky.actor.defs.profileViewBasic, subject) ||
+    bsky.isType(app.bsky.actor.defs.profileView, subject) ||
+    bsky.isType(app.bsky.actor.defs.profileViewDetailed, subject)
   ) {
     return {
       type: 'account',
       did: subject.did,
       nsid: 'app.bsky.actor.profile',
     }
-  } else if (AppBskyActorDefs.isStatusView(subject)) {
+  } else if (bsky.isType(app.bsky.actor.defs.statusView, subject)) {
     if (!subject.uri || !subject.cid) return
     return {
       type: 'status',
@@ -48,36 +58,31 @@ export function parseReportSubject(
       cid: subject.cid,
       nsid: 'app.bsky.actor.status',
     }
-  } else if (AppBskyGraphDefs.isListView(subject)) {
+  } else if (bsky.isType(app.bsky.graph.defs.listView, subject)) {
     return {
       type: 'list',
       uri: subject.uri,
       cid: subject.cid,
       nsid: 'app.bsky.graph.list',
     }
-  } else if (AppBskyFeedDefs.isGeneratorView(subject)) {
+  } else if (bsky.isType(app.bsky.feed.defs.generatorView, subject)) {
     return {
       type: 'feed',
       uri: subject.uri,
       cid: subject.cid,
       nsid: 'app.bsky.feed.generator',
     }
-  } else if (AppBskyGraphDefs.isStarterPackView(subject)) {
+  } else if (bsky.isType(app.bsky.graph.defs.starterPackView, subject)) {
     return {
       type: 'starterPack',
       uri: subject.uri,
       cid: subject.cid,
       nsid: 'app.bsky.graph.starterPack',
     }
-  } else if (AppBskyFeedDefs.isPostView(subject)) {
+  } else if (bsky.isType(app.bsky.feed.defs.postView, subject)) {
     const record = subject.record
     const embed = bsky.post.parseEmbed(subject.embed)
-    if (
-      bsky.dangerousIsType<AppBskyFeedPost.Record>(
-        record,
-        AppBskyFeedPost.isRecord,
-      )
-    ) {
+    if (bsky.isType(app.bsky.feed.post, record)) {
       return {
         type: 'post',
         uri: subject.uri,

src/components/moderation/ReportDialog/utils/useReportOptions.ts

@@ -1,8 +1,11 @@
 import {useMemo} from 'react'
-import {ToolsOzoneReportDefs as OzoneReportDefs} from '@atproto/api'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 
+import {tools} from '#/lexicons'
+
+const OzoneReportDefs = tools.ozone.report.defs
+
 export type ReportCategory =
   | 'childSafety'
   | 'violencePhysicalHarm'
@@ -22,7 +25,7 @@ export type ReportCategoryConfig = {
 
 export type ReportOption = {
   title: string
-  reason: OzoneReportDefs.ReasonType
+  reason: tools.ozone.report.defs.ReasonType
 }
 
 export function useReportOptions() {
@@ -37,27 +40,27 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Spam`),
-            reason: OzoneReportDefs.REASONMISLEADINGSPAM,
+            reason: OzoneReportDefs.reasonMisleadingSpam.value,
           },
           {
             title: _(msg`Scam`),
-            reason: OzoneReportDefs.REASONMISLEADINGSCAM,
+            reason: OzoneReportDefs.reasonMisleadingScam.value,
           },
           {
             title: _(msg`Fake account or bot`),
-            reason: OzoneReportDefs.REASONMISLEADINGBOT,
+            reason: OzoneReportDefs.reasonMisleadingBot.value,
           },
           {
             title: _(msg`Impersonation`),
-            reason: OzoneReportDefs.REASONMISLEADINGIMPERSONATION,
+            reason: OzoneReportDefs.reasonMisleadingImpersonation.value,
           },
           {
             title: _(msg`False information about elections`),
-            reason: OzoneReportDefs.REASONMISLEADINGELECTIONS,
+            reason: OzoneReportDefs.reasonMisleadingElections.value,
           },
           {
             title: _(msg`Other misleading content`),
-            reason: OzoneReportDefs.REASONMISLEADINGOTHER,
+            reason: OzoneReportDefs.reasonMisleadingOther.value,
           },
         ],
       },
@@ -70,27 +73,27 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Unlabeled adult content`),
-            reason: OzoneReportDefs.REASONSEXUALUNLABELED,
+            reason: OzoneReportDefs.reasonSexualUnlabeled.value,
           },
           {
             title: _(msg`Adult sexual abuse content`),
-            reason: OzoneReportDefs.REASONSEXUALABUSECONTENT,
+            reason: OzoneReportDefs.reasonSexualAbuseContent.value,
           },
           {
             title: _(msg`Non-consensual intimate imagery`),
-            reason: OzoneReportDefs.REASONSEXUALNCII,
+            reason: OzoneReportDefs.reasonSexualNCII.value,
           },
           {
             title: _(msg`Deepfake adult content`),
-            reason: OzoneReportDefs.REASONSEXUALDEEPFAKE,
+            reason: OzoneReportDefs.reasonSexualDeepfake.value,
           },
           {
             title: _(msg`Animal sexual abuse`),
-            reason: OzoneReportDefs.REASONSEXUALANIMAL,
+            reason: OzoneReportDefs.reasonSexualAnimal.value,
           },
           {
             title: _(msg`Other sexual violence content`),
-            reason: OzoneReportDefs.REASONSEXUALOTHER,
+            reason: OzoneReportDefs.reasonSexualOther.value,
           },
         ],
       },
@@ -101,23 +104,23 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Trolling`),
-            reason: OzoneReportDefs.REASONHARASSMENTTROLL,
+            reason: OzoneReportDefs.reasonHarassmentTroll.value,
           },
           {
             title: _(msg`Targeted harassment`),
-            reason: OzoneReportDefs.REASONHARASSMENTTARGETED,
+            reason: OzoneReportDefs.reasonHarassmentTargeted.value,
           },
           {
             title: _(msg`Hate speech`),
-            reason: OzoneReportDefs.REASONHARASSMENTHATESPEECH,
+            reason: OzoneReportDefs.reasonHarassmentHateSpeech.value,
           },
           {
             title: _(msg`Doxxing`),
-            reason: OzoneReportDefs.REASONHARASSMENTDOXXING,
+            reason: OzoneReportDefs.reasonHarassmentDoxxing.value,
           },
           {
             title: _(msg`Other harassing or hateful content`),
-            reason: OzoneReportDefs.REASONHARASSMENTOTHER,
+            reason: OzoneReportDefs.reasonHarassmentOther.value,
           },
         ],
       },
@@ -128,31 +131,31 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Animal welfare`),
-            reason: OzoneReportDefs.REASONVIOLENCEANIMAL,
+            reason: OzoneReportDefs.reasonViolenceAnimal.value,
           },
           {
             title: _(msg`Threats or incitement`),
-            reason: OzoneReportDefs.REASONVIOLENCETHREATS,
+            reason: OzoneReportDefs.reasonViolenceThreats.value,
           },
           {
             title: _(msg`Graphic violent content`),
-            reason: OzoneReportDefs.REASONVIOLENCEGRAPHICCONTENT,
+            reason: OzoneReportDefs.reasonViolenceGraphicContent.value,
           },
           {
             title: _(msg`Glorification of violence`),
-            reason: OzoneReportDefs.REASONVIOLENCEGLORIFICATION,
+            reason: OzoneReportDefs.reasonViolenceGlorification.value,
           },
           {
             title: _(msg`Extremist content`),
-            reason: OzoneReportDefs.REASONVIOLENCEEXTREMISTCONTENT,
+            reason: OzoneReportDefs.reasonViolenceExtremistContent.value,
           },
           {
             title: _(msg`Human trafficking`),
-            reason: OzoneReportDefs.REASONVIOLENCETRAFFICKING,
+            reason: OzoneReportDefs.reasonViolenceTrafficking.value,
           },
           {
             title: _(msg`Other violent content`),
-            reason: OzoneReportDefs.REASONVIOLENCEOTHER,
+            reason: OzoneReportDefs.reasonViolenceOther.value,
           },
         ],
       },
@@ -163,23 +166,23 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Child Sexual Abuse Material (CSAM)`),
-            reason: OzoneReportDefs.REASONCHILDSAFETYCSAM,
+            reason: OzoneReportDefs.reasonChildSafetyCSAM.value,
           },
           {
             title: _(msg`Grooming or predatory behavior`),
-            reason: OzoneReportDefs.REASONCHILDSAFETYGROOM,
+            reason: OzoneReportDefs.reasonChildSafetyGroom.value,
           },
           {
             title: _(msg`Privacy violation of a minor`),
-            reason: OzoneReportDefs.REASONCHILDSAFETYPRIVACY,
+            reason: OzoneReportDefs.reasonChildSafetyPrivacy.value,
           },
           {
             title: _(msg`Minor harassment or bullying`),
-            reason: OzoneReportDefs.REASONCHILDSAFETYHARASSMENT,
+            reason: OzoneReportDefs.reasonChildSafetyHarassment.value,
           },
           {
             title: _(msg`Other child safety issue`),
-            reason: OzoneReportDefs.REASONCHILDSAFETYOTHER,
+            reason: OzoneReportDefs.reasonChildSafetyOther.value,
           },
         ],
       },
@@ -190,23 +193,23 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Content promoting or depicting self-harm`),
-            reason: OzoneReportDefs.REASONSELFHARMCONTENT,
+            reason: OzoneReportDefs.reasonSelfHarmContent.value,
           },
           {
             title: _(msg`Eating disorders`),
-            reason: OzoneReportDefs.REASONSELFHARMED,
+            reason: OzoneReportDefs.reasonSelfHarmED.value,
           },
           {
             title: _(msg`Dangerous challenges or activities`),
-            reason: OzoneReportDefs.REASONSELFHARMSTUNTS,
+            reason: OzoneReportDefs.reasonSelfHarmStunts.value,
           },
           {
             title: _(msg`Dangerous substances or drug abuse`),
-            reason: OzoneReportDefs.REASONSELFHARMSUBSTANCES,
+            reason: OzoneReportDefs.reasonSelfHarmSubstances.value,
           },
           {
             title: _(msg`Other dangerous content`),
-            reason: OzoneReportDefs.REASONSELFHARMOTHER,
+            reason: OzoneReportDefs.reasonSelfHarmOther.value,
           },
         ],
       },
@@ -217,19 +220,19 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Hacking or system attacks`),
-            reason: OzoneReportDefs.REASONRULESITESECURITY,
+            reason: OzoneReportDefs.reasonRuleSiteSecurity.value,
           },
           {
             title: _(msg`Promoting or selling prohibited items or services`),
-            reason: OzoneReportDefs.REASONRULEPROHIBITEDSALES,
+            reason: OzoneReportDefs.reasonRuleProhibitedSales.value,
           },
           {
             title: _(msg`Banned user returning`),
-            reason: OzoneReportDefs.REASONRULEBANEVASION,
+            reason: OzoneReportDefs.reasonRuleBanEvasion.value,
           },
           {
             title: _(msg`Other network rule-breaking`),
-            reason: OzoneReportDefs.REASONRULEOTHER,
+            reason: OzoneReportDefs.reasonRuleOther.value,
           },
         ],
       },
@@ -240,7 +243,7 @@ export function useReportOptions() {
         options: [
           {
             title: _(msg`Other`),
-            reason: OzoneReportDefs.REASONOTHER,
+            reason: OzoneReportDefs.reasonOther.value,
           },
         ],
       },

src/components/moderation/ScreenHider.tsx

@@ -5,7 +5,7 @@ import {
   View,
   type ViewStyle,
 } from 'react-native'
-import {type ModerationUI} from '@atproto/api'
+import {type ModerationUI} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'
 

src/features/liveEvents/context.tsx

@@ -1,5 +1,5 @@
 import {createContext, useContext, useMemo} from 'react'
-import {hasMutedWord} from '@atproto/api'
+import {hasMutedWord} from '@bsky.app/sdk/moderation'
 import {QueryClient, useQuery} from '@tanstack/react-query'
 
 import {useOnAppStateChange} from '#/lib/appState'

src/features/liveEvents/preferences.ts

@@ -1,12 +1,12 @@
 import {useEffect} from 'react'
-import {type Agent, AppBskyActorDefs, asPredicate} from '@atproto/api'
+import {getPreferences, updateLiveEventPreferences} from '@bsky.app/sdk'
 import {useMutation, useQueryClient} from '@tanstack/react-query'
 
 import {
   preferencesQueryKey,
   usePreferencesQuery,
 } from '#/state/queries/preferences'
-import {useAgent} from '#/state/session'
+import {usePdsClient} from '#/state/session'
 import {useAnalytics} from '#/analytics'
 import * as env from '#/env'
 import {IS_WEB} from '#/env'
@@ -14,10 +14,11 @@ import {
   type LiveEventFeed,
   type LiveEventFeedMetricContext,
 } from '#/features/liveEvents/types'
+import {app} from '#/lexicons'
 
 export type LiveEventPreferencesAction = Parameters<
-  Agent['updateLiveEventPreferences']
->[0] & {
+  typeof updateLiveEventPreferences
+>[1] & {
   /**
    * Flag that is internal to this hook, do not set when updating prefs
    */
@@ -38,7 +39,7 @@ export function useLiveEventPreferences() {
 
 function useWebOnlyDebugLiveEventPreferences() {
   const queryClient = useQueryClient()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
 
   useEffect(() => {
     if (env.IS_DEV && IS_WEB && typeof window !== 'undefined') {
@@ -46,14 +47,14 @@ function useWebOnlyDebugLiveEventPreferences() {
       window.__updateLiveEventPreferences = async (
         action: LiveEventPreferencesAction,
       ) => {
-        await agent.updateLiveEventPreferences(action)
+        await pdsClient.call(updateLiveEventPreferences, action)
         // triggers a refetch
         await queryClient.invalidateQueries({
           queryKey: preferencesQueryKey,
         })
       }
     }
-  }, [agent, queryClient])
+  }, [pdsClient, queryClient])
 }
 
 export function useUpdateLiveEventPreferences(props: {
@@ -65,10 +66,10 @@ export function useUpdateLiveEventPreferences(props: {
 }) {
   const ax = useAnalytics()
   const queryClient = useQueryClient()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
 
   return useMutation<
-    AppBskyActorDefs.LiveEventPreferences,
+    app.bsky.actor.defs.LiveEventPreferences,
     Error,
     LiveEventPreferencesAction,
     {undoAction: LiveEventPreferencesAction | null}
@@ -108,10 +109,14 @@ export function useUpdateLiveEventPreferences(props: {
       }
     },
     mutationFn: async action => {
-      const updated = await agent.updateLiveEventPreferences(action)
-      const prefs = updated.find(p =>
-        asPredicate(AppBskyActorDefs.validateLiveEventPreferences)(p),
-      )
+      /*
+       * The SDK action returns void, so after applying the update we read the
+       * fresh, interpreted preferences back to obtain the updated
+       * `liveEventPreferences` (the SDK extracts it from the raw prefs array for
+       * us, replacing the old `asPredicate(...).find(...)` lookup).
+       */
+      await pdsClient.call(updateLiveEventPreferences, action)
+      const {liveEventPreferences: prefs} = await pdsClient.call(getPreferences)
 
       switch (action.type) {
         case 'hideFeed':
@@ -138,7 +143,7 @@ export function useUpdateLiveEventPreferences(props: {
           break
         }
         case 'toggleHideAllFeeds': {
-          if (prefs!.hideAllFeeds) {
+          if (prefs.hideAllFeeds) {
             ax.metric('liveEvents:hideAllFeedBanners', {
               context: props.metricContext,
             })
@@ -156,7 +161,7 @@ export function useUpdateLiveEventPreferences(props: {
         queryKey: preferencesQueryKey,
       })
 
-      return prefs!
+      return prefs
     },
   })
 }

src/features/liveNow/components/EditLiveDialog.tsx

@@ -1,6 +1,5 @@
 import {useMemo, useState} from 'react'
 import {View} from 'react-native'
-import {type AppBskyActorDefs, type AppBskyEmbedExternal} from '@atproto/api'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
@@ -26,6 +25,7 @@ import {
   useUpsertLiveStatusMutation,
 } from '#/features/liveNow'
 import {LinkPreview} from '#/features/liveNow/components/LinkPreview'
+import {type app} from '#/lexicons'
 
 export function EditLiveDialog({
   control,
@@ -33,8 +33,8 @@ export function EditLiveDialog({
   embed,
 }: {
   control: Dialog.DialogControlProps
-  status: AppBskyActorDefs.StatusView
-  embed: AppBskyEmbedExternal.View
+  status: app.bsky.actor.defs.StatusView
+  embed: app.bsky.embed.external.View
 }) {
   return (
     <Dialog.Outer control={control} nativeOptions={{preventExpansion: true}}>
@@ -48,14 +48,14 @@ function DialogInner({
   status,
   embed,
 }: {
-  status: AppBskyActorDefs.StatusView
-  embed: AppBskyEmbedExternal.View
+  status: app.bsky.actor.defs.StatusView
+  embed: app.bsky.embed.external.View
 }) {
   const control = Dialog.useDialogContext()
   const {_, i18n} = useLingui()
   const t = useTheme()
 
-  const [liveLink, setLiveLink] = useState(embed.external.uri)
+  const [liveLink, setLiveLink] = useState<string>(embed.external.uri)
   const [liveLinkError, setLiveLinkError] = useState('')
   const tick = useTickEveryMinute()
 

src/features/liveNow/components/GoLiveDisabledDialog.tsx

@@ -1,20 +1,22 @@
 import {useCallback, useState} from 'react'
 import {View} from 'react-native'
-import {type AppBskyActorDefs, ToolsOzoneReportDefs} from '@atproto/api'
+import {type AppBskyActorDefs} from '@atproto/api'
+import {api} from '@bsky.app/sdk'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {Trans} from '@lingui/react/macro'
 import {useMutation} from '@tanstack/react-query'
 
-import {BLUESKY_MOD_SERVICE_HEADERS} from '#/lib/constants'
 import {logger} from '#/logger'
-import {useAgent} from '#/state/session'
+import {useMaybePdsClient, useSession} from '#/state/session'
 import {atoms as a, web} from '#/alf'
 import {Button, ButtonIcon, ButtonText} from '#/components/Button'
 import * as Dialog from '#/components/Dialog'
 import {Loader} from '#/components/Loader'
 import * as Toast from '#/components/Toast'
 import {Text} from '#/components/Typography'
+import {com, tools} from '#/lexicons'
+import {toLex} from '#/types/bsky'
 
 export function GoLiveDisabledDialog({
   control,
@@ -39,12 +41,13 @@ export function DialogInner({
   status: AppBskyActorDefs.StatusView
 }) {
   const {_} = useLingui()
-  const agent = useAgent()
+  const {currentAccount} = useSession()
+  const pdsClient = useMaybePdsClient()
   const [details, setDetails] = useState('')
 
   const {mutate, isPending} = useMutation({
     mutationFn: async () => {
-      if (!agent.session?.did) {
+      if (!currentAccount?.did || !pdsClient) {
         throw new Error('Not logged in')
       }
       if (!status.uri || !status.cid) {
@@ -56,19 +59,19 @@ export function DialogInner({
           details,
         })
       } else {
-        await agent.createModerationReport(
-          {
-            reasonType: ToolsOzoneReportDefs.REASONAPPEAL,
+        await pdsClient.call(
+          com.atproto.moderation.createReport,
+          toLex<com.atproto.moderation.createReport.$InputBody>({
+            reasonType: tools.ozone.report.defs.reasonAppeal.value,
             subject: {
               $type: 'com.atproto.repo.strongRef',
               uri: status.uri,
               cid: status.cid,
             },
             reason: details,
-          },
+          }),
           {
-            encoding: 'application/json',
-            headers: BLUESKY_MOD_SERVICE_HEADERS,
+            service: api.moderation.service,
           },
         )
       }

src/features/liveNow/components/LiveStatusDialog.tsx

@@ -1,11 +1,7 @@
 import {useCallback, useMemo} from 'react'
 import {View} from 'react-native'
 import {Image} from 'expo-image'
-import {
-  type AppBskyActorDefs,
-  type AppBskyEmbedExternal,
-  moderateStatus,
-} from '@atproto/api'
+import {moderateStatus} from '@bsky.app/sdk/moderation'
 import {Trans, useLingui} from '@lingui/react/macro'
 import {useNavigation} from '@react-navigation/native'
 import {useQueryClient} from '@tanstack/react-query'
@@ -30,7 +26,8 @@ import * as ProfileCard from '#/components/ProfileCard'
 import {Text} from '#/components/Typography'
 import {useAnalytics} from '#/analytics'
 import {LiveIndicator} from '#/features/liveNow/components/LiveIndicator'
-import type * as bsky from '#/types/bsky'
+import {type app} from '#/lexicons'
+import * as bsky from '#/types/bsky'
 
 export function LiveStatusDialog({
   control,
@@ -40,8 +37,8 @@ export function LiveStatusDialog({
 }: {
   control: Dialog.DialogControlProps
   profile: bsky.profile.AnyProfileView
-  status: AppBskyActorDefs.StatusView
-  embed: AppBskyEmbedExternal.View
+  status: app.bsky.actor.defs.StatusView
+  embed: app.bsky.embed.external.View
 }) {
   const navigation = useNavigation<NavigationProp>()
   return (
@@ -64,9 +61,9 @@ function DialogInner({
   status,
 }: {
   profile: bsky.profile.AnyProfileView
-  embed: AppBskyEmbedExternal.View
+  embed: app.bsky.embed.external.View
   navigation: NavigationProp
-  status: AppBskyActorDefs.StatusView
+  status: app.bsky.actor.defs.StatusView
 }) {
   const {t: l} = useLingui()
   const control = Dialog.useDialogContext()
@@ -102,9 +99,9 @@ export function LiveStatus({
   padding = 'xl',
   onPressOpenProfile,
 }: {
-  status: AppBskyActorDefs.StatusView
+  status: app.bsky.actor.defs.StatusView
   profile: bsky.profile.AnyProfileView
-  embed: AppBskyEmbedExternal.View
+  embed: app.bsky.embed.external.View
   padding?: 'lg' | 'xl'
   onPressOpenProfile: () => void
 }) {
@@ -118,7 +115,8 @@ export function LiveStatus({
   const dialogContext = Dialog.useDialogContext()
   const moderation = useMemo(() => {
     if (!moderationOpts) return undefined
-    return moderateStatus(profile, moderationOpts)
+    // TODO(phase4): drop toLex once profile producers emit #/lexicons views
+    return moderateStatus(bsky.toLex(profile), moderationOpts)
   }, [profile, moderationOpts])
 
   return (

src/features/liveNow/index.tsx

@@ -1,14 +1,13 @@
 import {useMemo} from 'react'
-import {
-  type $Typed,
-  type AppBskyActorDefs,
-  type AppBskyActorStatus,
-  AppBskyEmbedExternal,
-  AtUri,
-  ComAtprotoRepoPutRecord,
-  moderateStatus,
-} from '@atproto/api'
 import {retry} from '@atproto/common-web'
+import {type $Typed} from '@atproto/lex'
+import {
+  type AtIdentifierString,
+  AtUri,
+  type DatetimeString,
+  type UriString,
+} from '@atproto/syntax'
+import {moderateStatus} from '@bsky.app/sdk/moderation'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 import {useMutation, useQuery, useQueryClient} from '@tanstack/react-query'
@@ -17,19 +16,21 @@ import {isAfter, parseISO} from 'date-fns'
 import {uploadBlob} from '#/lib/api'
 import {imageToThumb} from '#/lib/api/resolve'
 import {getLinkMeta, type LinkMeta} from '#/lib/link-meta/link-meta'
+import {getErrorName} from '#/lib/xrpc-error'
 import {useAppConfig} from '#/state/appConfig'
 import {
   updateProfileShadow,
   useMaybeProfileShadow,
 } from '#/state/cache/profile-shadow'
 import {useModerationOpts} from '#/state/preferences/moderation-opts'
-import {useAgent, useSession} from '#/state/session'
+import {useAgent, usePdsClient, useSession} from '#/state/session'
 import {useTickEveryMinute} from '#/state/shell'
 import {useDialogContext} from '#/components/Dialog'
 import * as Toast from '#/components/Toast'
 import {useAnalytics} from '#/analytics'
 import {getLiveNowHost, getLiveServiceNames} from '#/features/liveNow/utils'
-import type * as bsky from '#/types/bsky'
+import {app, com} from '#/lexicons'
+import * as bsky from '#/types/bsky'
 
 export * from '#/features/liveNow/utils'
 
@@ -47,7 +48,7 @@ const DEFAULT_STATE = {
   isDisabled: false,
   isActive: false,
   record: {},
-} satisfies AppBskyActorDefs.StatusView
+} satisfies app.bsky.actor.defs.StatusView
 
 export type LiveNowConfig = {
   canGoLive: boolean
@@ -104,7 +105,8 @@ export function useActorStatus(actor?: bsky.profile.AnyProfileView) {
   const moderation = useMemo(() => {
     if (!actor || !('status' in actor && actor.status)) return undefined
     if (!moderationOpts) return undefined
-    return moderateStatus(actor, moderationOpts)
+    // TODO(phase4): drop toLex once profile producers emit #/lexicons views
+    return moderateStatus(bsky.toLex(actor), moderationOpts)
   }, [actor, moderationOpts])
 
   return useMemo(() => {
@@ -118,31 +120,37 @@ export function useActorStatus(actor?: bsky.profile.AnyProfileView) {
     }
 
     if (shadowed && 'status' in shadowed && shadowed.status) {
-      const isValid = isStatusValidForViewers(shadowed.status, config)
-      const isDisabled = shadowed.status.isDisabled || false
-      const isActive = isStatusStillActive(shadowed.status.expiresAt)
+      /*
+       * TODO(phase4): drop toLex once profile-shadow emits #/lexicons views.
+       * The shadow store still holds old `@atproto/api` StatusViews, so brand
+       * it once here to feed the new-world validation and returned view.
+       */
+      const status = bsky.toLex<app.bsky.actor.defs.StatusView>(shadowed.status)
+      const isValid = isStatusValidForViewers(status, config)
+      const isDisabled = status.isDisabled || false
+      const isActive = isStatusStillActive(status.expiresAt)
       if (isValid && !isDisabled && isActive) {
         return {
-          uri: shadowed.status.uri,
-          cid: shadowed.status.cid,
+          uri: status.uri,
+          cid: status.cid,
           isDisabled: false,
           isActive: true,
           status: 'app.bsky.actor.status#live',
-          embed: shadowed.status.embed as $Typed<AppBskyEmbedExternal.View>, // temp_isStatusValid asserts this
-          expiresAt: shadowed.status.expiresAt!, // isStatusStillActive asserts this
-          record: shadowed.status.record,
-        } satisfies AppBskyActorDefs.StatusView
+          embed: status.embed as $Typed<app.bsky.embed.external.View>, // temp_isStatusValid asserts this
+          expiresAt: status.expiresAt!, // isStatusStillActive asserts this
+          record: status.record,
+        } satisfies app.bsky.actor.defs.StatusView
       }
       return {
-        uri: shadowed.status.uri,
-        cid: shadowed.status.cid,
+        uri: status.uri,
+        cid: status.cid,
         isDisabled,
         isActive: false,
         status: 'app.bsky.actor.status#live',
-        embed: shadowed.status.embed as $Typed<AppBskyEmbedExternal.View>, // temp_isStatusValid asserts this
-        expiresAt: shadowed.status.expiresAt!, // isStatusStillActive asserts this
-        record: shadowed.status.record,
-      } satisfies AppBskyActorDefs.StatusView
+        embed: status.embed as $Typed<app.bsky.embed.external.View>, // temp_isStatusValid asserts this
+        expiresAt: status.expiresAt!, // isStatusStillActive asserts this
+        record: status.record,
+      } satisfies app.bsky.actor.defs.StatusView
     } else {
       return DEFAULT_STATE
     }
@@ -162,14 +170,14 @@ export function isStatusStillActive(timeStr: string | undefined) {
  * validate if the status is valid for the acting user e.g. as they go live.
  */
 export function isStatusValidForViewers(
-  status: AppBskyActorDefs.StatusView,
+  status: app.bsky.actor.defs.StatusView,
   config: LiveNowConfig,
 ) {
   if (status.status !== 'app.bsky.actor.status#live') return false
   if (!status.uri) return false // should not happen, just backwards compat
   try {
     const {host: liveDid} = new AtUri(status.uri)
-    if (AppBskyEmbedExternal.isView(status.embed)) {
+    if (bsky.isType(app.bsky.embed.external.view, status.embed)) {
       const host = getLiveNowHost(status.embed.external.uri)
       const exception = config.allowedHostsExceptionsByDid.get(liveDid)
       const isValidException = exception ? exception.has(host) : false
@@ -217,7 +225,7 @@ export function useUpsertLiveStatusMutation(
 ) {
   const ax = useAnalytics()
   const {currentAccount} = useSession()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
   const queryClient = useQueryClient()
   const control = useDialogContext()
   const {_} = useLingui()
@@ -226,7 +234,7 @@ export function useUpsertLiveStatusMutation(
     mutationFn: async () => {
       if (!currentAccount) throw new Error('Not logged in')
 
-      let embed: $Typed<AppBskyEmbedExternal.Main> | undefined
+      let embed: $Typed<app.bsky.embed.external.Main> | undefined
 
       if (linkMeta) {
         let thumb
@@ -236,11 +244,11 @@ export function useUpsertLiveStatusMutation(
             const img = await imageToThumb(linkMeta.image)
             if (img) {
               const blob = await uploadBlob(
-                agent,
+                pdsClient,
                 img.source.path,
                 img.source.mime,
               )
-              thumb = blob.data.blob
+              thumb = blob.blob
             }
           } catch (e: any) {
             ax.logger.error(`Failed to upload thumbnail for live status`, {
@@ -257,7 +265,7 @@ export function useUpsertLiveStatusMutation(
             $type: 'app.bsky.embed.external#external',
             title: linkMeta.title ?? '',
             description: linkMeta.description ?? '',
-            uri: linkMeta.url,
+            uri: linkMeta.url as UriString,
             thumb,
           },
         }
@@ -265,32 +273,32 @@ export function useUpsertLiveStatusMutation(
 
       const record = {
         $type: 'app.bsky.actor.status',
-        createdAt: createdAt ?? new Date().toISOString(),
+        createdAt: (createdAt ?? new Date().toISOString()) as DatetimeString,
         status: 'app.bsky.actor.status#live',
         durationMinutes: duration,
         embed,
-      } satisfies AppBskyActorStatus.Record
+      } satisfies app.bsky.actor.status.Main
 
       const upsert = async () => {
-        const repo = currentAccount.did
+        const repo = currentAccount.did as AtIdentifierString
         const collection = 'app.bsky.actor.status'
 
-        const existing = await agent.com.atproto.repo
-          .getRecord({repo, collection, rkey: 'self'})
+        const existing = await pdsClient
+          .call(com.atproto.repo.getRecord, {repo, collection, rkey: 'self'})
           .catch(_e => undefined)
 
-        await agent.com.atproto.repo.putRecord({
+        await pdsClient.call(com.atproto.repo.putRecord, {
           repo,
           collection,
           rkey: 'self',
           record,
-          swapRecord: existing?.data.cid || null,
+          swapRecord: existing?.cid || null,
         })
       }
 
       await retry(upsert, {
         maxRetries: 5,
-        retryable: e => e instanceof ComAtprotoRepoPutRecord.InvalidSwapError,
+        retryable: e => getErrorName(e) === 'InvalidSwap',
       })
 
       return {
@@ -347,7 +355,7 @@ export function useUpsertLiveStatusMutation(
 export function useRemoveLiveStatusMutation() {
   const ax = useAnalytics()
   const {currentAccount} = useSession()
-  const agent = useAgent()
+  const pdsClient = usePdsClient()
   const queryClient = useQueryClient()
   const control = useDialogContext()
   const {_} = useLingui()
@@ -356,8 +364,8 @@ export function useRemoveLiveStatusMutation() {
     mutationFn: async () => {
       if (!currentAccount) throw new Error('Not logged in')
 
-      await agent.app.bsky.actor.status.delete({
-        repo: currentAccount.did,
+      await pdsClient.delete(app.bsky.actor.status, {
+        repo: currentAccount.did as AtIdentifierString,
         rkey: 'self',
       })
     },

src/features/liveNow/utils.ts

@@ -1,19 +1,19 @@
-import {AppBskyActorStatus, AppBskyEmbedExternal} from '@atproto/api'
 import {type I18n} from '@lingui/core'
 import {plural} from '@lingui/core/macro'
 import psl from 'psl'
 
+import {app} from '#/lexicons'
+import * as bsky from '#/types/bsky'
+
 /**
  * Validates a raw status record and returns the typed record, or null if the
  * value is not a valid `app.bsky.actor.status` record.
  */
 export function getValidLiveStatusRecord(
   statusRecord: unknown,
-): AppBskyActorStatus.Record | null {
-  if (!AppBskyActorStatus.isRecord(statusRecord)) return null
-  const validation = AppBskyActorStatus.validateRecord(statusRecord)
-  if (!validation.success) return null
-  return validation.value
+): app.bsky.actor.status.Main | null {
+  if (!bsky.matches(app.bsky.actor.status, statusRecord)) return null
+  return statusRecord
 }
 
 /**
@@ -23,7 +23,7 @@ export function getValidLiveStatusRecord(
 export function getLiveLinkFromStatusRecord(statusRecord: unknown): string {
   const record = getValidLiveStatusRecord(statusRecord)
   if (!record) return ''
-  if (!AppBskyEmbedExternal.isMain(record.embed)) return ''
+  if (!bsky.isType(app.bsky.embed.external, record.embed)) return ''
   return record.embed.external.uri
 }
 

src/lib/api/__tests__/computeCid.test.ts

@@ -0,0 +1,121 @@
+/*
+ * The jest suite ships global manual mocks for `multiformats/cid` and
+ * `multiformats/hashes/hasher` (in root `__mocks__/`) so unrelated tests don't
+ * pull in real crypto. This test is precisely about the real CID hashing, so we
+ * opt back into the actual implementations here.
+ */
+jest.unmock('multiformats/cid')
+jest.unmock('multiformats/hashes/hasher')
+
+import {BlobRef} from '@atproto/api'
+import {CID} from 'multiformats/cid'
+
+import {computeCid} from '#/lib/api/computeCid'
+import {type app, type com} from '#/lexicons'
+
+/*
+ * Golden-CID regression test for the composer post pipeline (design section F).
+ *
+ * `computeCid` hashes a post record in the client so a thread's later posts can
+ * reference earlier posts by CID before the server assigns them. The hash is
+ * byte-sensitive: any drift in how records (especially blobs) are serialized to
+ * DAG-CBOR silently produces the wrong CID and breaks reply chains with NO type
+ * error. These golden values were captured from the PRE-migration `computeCid`
+ * (the `instanceof BlobRef` path) and MUST remain byte-identical after the guard
+ * is changed to the structural `isBlobRef` shape check.
+ *
+ * The blob CID below is a fixed, deterministic CIDv1/raw/sha256 used purely as a
+ * stable fixture - it is not derived from any real upload.
+ */
+const BLOB_CID = 'bafkreieq5jui4j25lacwomsqgjeswwl3y5zcdrresptwgmfylxo2depppq'
+
+/**
+ * Build a post record with an image embed whose blob is the given value. Used to
+ * prove that a `@atproto/api` `BlobRef` class instance (the shape the not-yet
+ * -migrated video path still yields) and a plain-JSON lex blob (the shape lex
+ * `uploadBlob` returns) hash to the SAME CID.
+ */
+function postWithImageBlob(blob: unknown): app.bsky.feed.post.Main {
+  return {
+    $type: 'app.bsky.feed.post',
+    createdAt: '2024-01-01T00:00:00.001Z',
+    text: 'post with image',
+    embed: {
+      $type: 'app.bsky.embed.images',
+      images: [
+        {
+          image: blob,
+          alt: 'alt text',
+          aspectRatio: {width: 100, height: 200},
+        },
+      ],
+    },
+  } as app.bsky.feed.post.Main
+}
+
+describe('computeCid', () => {
+  it('case 1: plain post record with no blob', async () => {
+    const record: app.bsky.feed.post.Main = {
+      $type: 'app.bsky.feed.post',
+      createdAt: '2024-01-01T00:00:00.000Z',
+      text: 'hello world',
+    }
+    expect(await computeCid(record)).toBe(
+      'bafyreieawtmh7hwfrqpamqkodza5r62bbfhsepe2iyustgxhgbhi6b2lfi',
+    )
+  })
+
+  it('case 2: record whose embed carries a BlobRef class instance', async () => {
+    const blob = new BlobRef(CID.parse(BLOB_CID), 'image/jpeg', 12345)
+    expect(await computeCid(postWithImageBlob(blob))).toBe(
+      'bafyreiem7g6vja66nebr7he4fshfnlyndyldbvle2n265oixscmepjcbii',
+    )
+  })
+
+  it('case 2b: a plain-JSON blob object hashes identically to the class instance', async () => {
+    /*
+     * This is the post-migration shape: lex `uploadBlob` returns a plain object
+     * `{$type: 'blob', ref, mimeType, size}` (with `ref` a parsed CID), not a
+     * `BlobRef` class instance. The structural `isBlobRef` guard must treat it
+     * exactly like the class instance so the CID is unchanged. Under the
+     * pre-change `instanceof` code this case already matches because the plain
+     * object walks through `prepareForHashing` unchanged and DAG-CBOR encodes
+     * its CID `ref` the same way `.ipld()` does.
+     */
+    const blob = {
+      $type: 'blob' as const,
+      ref: CID.parse(BLOB_CID),
+      mimeType: 'image/jpeg',
+      size: 12345,
+    }
+    expect(await computeCid(postWithImageBlob(blob))).toBe(
+      'bafyreiem7g6vja66nebr7he4fshfnlyndyldbvle2n265oixscmepjcbii',
+    )
+  })
+
+  it('case 3: three-post thread chains reply StrongRef CIDs', async () => {
+    const did = 'did:plc:abc123'
+    const base = new Date('2024-01-01T00:00:00.000Z')
+    const golden = [
+      'bafyreig62rxs34h5rvznfrracwkjlfgad5b25qxglp2hcziqdfas2nw2ee',
+      'bafyreicxcj2tq5jrh5jcaczg3eli5cvxitgzu7kpu3fm5v3njq2byjxirq',
+      'bafyreigvaswuhlpd7dllja2xrqswhqbruyv2kar7mvbn7gdm5ldzu6vkti',
+    ]
+
+    let reply: app.bsky.feed.post.Main['reply'] | undefined
+    for (let i = 0; i < 3; i++) {
+      const now = new Date(base.getTime() + i)
+      const uri = `at://${did}/app.bsky.feed.post/rkey${i}`
+      const record = {
+        $type: 'app.bsky.feed.post',
+        createdAt: now.toISOString(),
+        text: `post ${i}`,
+        reply,
+      } as app.bsky.feed.post.Main
+      const cid = await computeCid(record)
+      expect(cid).toBe(golden[i])
+      const ref = {cid, uri} as com.atproto.repo.strongRef.Main
+      reply = {root: reply?.root ?? ref, parent: ref}
+    }
+  })
+})

src/lib/api/computeCid.ts

@@ -0,0 +1,158 @@
+import {sha256} from 'js-sha256'
+import {CID} from 'multiformats/cid'
+import * as Hasher from 'multiformats/hashes/hasher'
+
+import {app} from '#/lexicons'
+
+/*
+ * Client-side CID computation for post records, extracted from the post
+ * pipeline so it can be unit-tested in isolation (importing the pipeline pulls
+ * in the native gallery/media chain). See `computeCid.test.ts` for the golden
+ * -CID regression fixtures that gate any change to this serialization.
+ */
+
+// The built-in hashing functions from multiformats (`multiformats/hashes/sha2`)
+// are meant for Node.js, this is the cross-platform equivalent.
+const mf_sha256 = Hasher.from({
+  name: 'sha2-256',
+  code: 0x12,
+  encode: input => {
+    const digest = sha256.arrayBuffer(input)
+    return new Uint8Array(digest)
+  },
+})
+
+export async function computeCid(
+  record: app.bsky.feed.post.Main,
+): Promise<string> {
+  /*
+   * Lazily loaded since it's only needed when posting a thread, and its
+   * `cborg` dependency is ~190KB that would otherwise be in the initial
+   * web bundle.
+   */
+  const dcbor = await importDagCbor()
+  // IMPORTANT: `prepareObject` prepares the record to be hashed by removing
+  // fields with undefined value, and converting BlobRef instances to the
+  // right IPLD representation.
+  const prepared = prepareForHashing(record)
+  // 1. Encode the record into DAG-CBOR format
+  const encoded = dcbor.encode(prepared)
+  // 2. Hash the record in SHA-256 (code 0x12)
+  const digest = await mf_sha256.digest(encoded)
+  // 3. Create a CIDv1, specifying DAG-CBOR as content (code 0x71)
+  const cid = CID.createV1(0x71, digest)
+  // 4. Get the Base32 representation of the CID (`b` prefix)
+  return cid.toString()
+}
+
+/**
+ * True for a plain-JSON lexicon blob, the shape lex `uploadBlob` now returns
+ * (`{$type: 'blob', ref, mimeType, size}` with `ref` a parsed CID). Replaces
+ * the old `instanceof BlobRef` check, since lex blobs are plain objects, not
+ * class instances (design section F).
+ */
+function isBlobRef(v: unknown): boolean {
+  if (v == null || typeof v !== 'object') return false
+  const o = v as Record<string, unknown>
+  return o.$type === 'blob' && 'ref' in o && 'mimeType' in o
+}
+
+/**
+ * True for a legacy `@atproto/api` `BlobRef` class instance. During the
+ * migration the video embed path still yields these (its blob comes from the
+ * not-yet-migrated `app.bsky.video.getJobStatus` bridge call), so we must keep
+ * handling them here even though the composer's own uploads are now plain lex
+ * blobs. A class instance is duck-typed by its `ipld()` method plus the
+ * `ref`/`mimeType` fields; it has NO `$type` and a non-plain prototype, so it
+ * would otherwise slip past both `isBlobRef` and `isPlainObject` and be encoded
+ * wrong - silently breaking video reply-chain CIDs.
+ */
+function isBlobRefInstance(
+  v: unknown,
+): v is {ipld: () => unknown; ref: unknown; mimeType: unknown} {
+  if (v == null || typeof v !== 'object') return false
+  const o = v as Record<string, unknown>
+  return typeof o.ipld === 'function' && 'ref' in o && 'mimeType' in o
+}
+
+// Returns a transformed version of the object for use in DAG-CBOR.
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function prepareForHashing(v: any): any {
+  /*
+   * A plain-JSON lex blob is already in the right IPLD shape (its `ref` is a
+   * parsed CID that DAG-CBOR encodes as a CID link), so pass it through
+   * untouched.
+   */
+  if (isBlobRef(v)) {
+    return v
+  }
+
+  /*
+   * A legacy `BlobRef` class instance must be converted via `ipld()` to the
+   * plain `{$type, ref, mimeType, size}` object; encoding the instance directly
+   * would emit its internal `original` field and omit `$type`, producing the
+   * wrong CID. `ipld()` returns exactly what `isBlobRef` accepts above.
+   */
+  if (isBlobRefInstance(v)) {
+    return v.ipld()
+  }
+
+  // Walk through arrays
+  if (Array.isArray(v)) {
+    let pure = true
+    const mapped = v.map(value => {
+      if (value !== (value = prepareForHashing(value))) {
+        pure = false
+      }
+      return value
+    })
+    return pure ? v : mapped
+  }
+
+  // Walk through plain objects
+  if (isPlainObject(v)) {
+    const rec = v as Record<string, unknown>
+    const obj: Record<string, unknown> = {}
+    let pure = true
+    for (const key in rec) {
+      let value = rec[key]
+      // `value` is undefined
+      if (value === undefined) {
+        pure = false
+        continue
+      }
+      // `prepareObject` returned a value that's different from what we had before
+      if (value !== (value = prepareForHashing(value))) {
+        pure = false
+      }
+      obj[key] = value
+    }
+    // Return as is if we haven't needed to tamper with anything
+    return pure ? v : obj
+  }
+  return v
+}
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function isPlainObject(v: any): boolean {
+  if (typeof v !== 'object' || v === null) {
+    return false
+  }
+  const proto = Object.getPrototypeOf(v)
+  return proto === Object.prototype || proto === null
+}
+
+/**
+ * Load `@ipld/dag-cbor` on demand. The dynamic `import()` lets web bundlers
+ * emit it (and its ~190KB `cborg` dependency) as a separate chunk that only
+ * loads when posting a thread. Under jest (which runs without
+ * `--experimental-vm-modules`) dynamic import throws, so we fall back to a
+ * lazy `require`, which resolves through the test moduleNameMapper.
+ */
+function importDagCbor(): Promise<typeof import('@ipld/dag-cbor')> {
+  if (process.env.NODE_ENV === 'test') {
+    // eslint-disable-next-line @typescript-eslint/no-require-imports
+    return Promise.resolve(require('@ipld/dag-cbor'))
+  }
+  return import('@ipld/dag-cbor')
+}

src/lib/api/feed/author.ts

@@ -1,23 +1,21 @@
-import {
-  AppBskyFeedDefs,
-  type AppBskyFeedGetAuthorFeed as GetAuthorFeed,
-} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
 
-import {type SessionAgent} from '#/state/session'
+import {app} from '#/lexicons'
+import * as bsky from '#/types/bsky'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 
 export class AuthorFeedAPI implements FeedAPI {
-  agent: SessionAgent
-  _params: GetAuthorFeed.QueryParams
+  client: Client
+  _params: app.bsky.feed.getAuthorFeed.$Params
 
   constructor({
-    agent,
+    client,
     feedParams,
   }: {
-    agent: SessionAgent
-    feedParams: GetAuthorFeed.QueryParams
+    client: Client
+    feedParams: app.bsky.feed.getAuthorFeed.$Params
   }) {
-    this.agent = agent
+    this.client = client
     this._params = feedParams
   }
 
@@ -27,12 +25,12 @@ export class AuthorFeedAPI implements FeedAPI {
     return params
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    const res = await this.agent.getAuthorFeed({
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
+    const res = await this.client.call(app.bsky.feed.getAuthorFeed, {
       ...this.params,
       limit: 1,
     })
-    return res.data.feed[0]
+    return res.feed[0]
   }
 
   async fetch({
@@ -42,28 +40,26 @@ export class AuthorFeedAPI implements FeedAPI {
     cursor: string | undefined
     limit: number
   }): Promise<FeedAPIResponse> {
-    const res = await this.agent.getAuthorFeed({
+    const res = await this.client.call(app.bsky.feed.getAuthorFeed, {
       ...this.params,
       cursor,
       limit,
     })
-    if (res.success) {
-      return {
-        cursor: res.data.cursor,
-        feed: this._filter(res.data.feed),
-      }
-    }
     return {
-      feed: [],
+      cursor: res.cursor,
+      feed: this._filter(res.feed),
     }
   }
 
-  _filter(feed: AppBskyFeedDefs.FeedViewPost[]) {
+  _filter(feed: app.bsky.feed.defs.FeedViewPost[]) {
     if (this.params.filter === 'posts_and_author_threads') {
       return feed.filter(post => {
         const isReply = post.reply
-        const isRepost = AppBskyFeedDefs.isReasonRepost(post.reason)
-        const isPin = AppBskyFeedDefs.isReasonPin(post.reason)
+        const isRepost = bsky.isType(
+          app.bsky.feed.defs.reasonRepost,
+          post.reason,
+        )
+        const isPin = bsky.isType(app.bsky.feed.defs.reasonPin, post.reason)
         if (!isReply) return true
         if (isRepost || isPin) return true
         return isReply && isAuthorReplyChain(this.params.actor, post, feed)
@@ -76,15 +72,15 @@ export class AuthorFeedAPI implements FeedAPI {
 
 function isAuthorReplyChain(
   actor: string,
-  post: AppBskyFeedDefs.FeedViewPost,
-  posts: AppBskyFeedDefs.FeedViewPost[],
+  post: app.bsky.feed.defs.FeedViewPost,
+  posts: app.bsky.feed.defs.FeedViewPost[],
 ): boolean {
   // current post is by a different user (shouldn't happen)
   if (post.post.author.did !== actor) return false
 
   const replyParent = post.reply?.parent
 
-  if (AppBskyFeedDefs.isPostView(replyParent)) {
+  if (bsky.isType(app.bsky.feed.defs.postView, replyParent)) {
     // reply parent is by a different user
     if (replyParent.author.did !== actor) return false
 

src/lib/api/feed/custom.ts

@@ -1,47 +1,53 @@
-import {
-  type AppBskyFeedDefs,
-  type AppBskyFeedGetFeed as GetCustomFeed,
-  AtpAgent,
-  jsonStringToLex,
-} from '@atproto/api'
+import {lexParse} from '@atproto/lex'
+import {Client} from '@atproto/lex-client'
 
 import {
   getAppLanguageAsContentLanguage,
   getContentLanguages,
 } from '#/state/preferences/languages'
-import {type SessionAgent} from '#/state/session'
+import {app} from '#/lexicons'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 import {createBskyTopicsHeader, isBlueskyOwnedFeed} from './utils'
 
+/**
+ * Input params for {@link CustomFeedAPI}. The generated `$Params` type reflects
+ * post-parse output, where `limit` (which has a lexicon default) is required;
+ * callers supply only `feed` and let `limit`/`cursor` come from `fetch`.
+ */
+type CustomFeedParams = {feed: app.bsky.feed.getFeed.$Params['feed']} & Partial<
+  Omit<app.bsky.feed.getFeed.$Params, 'feed'>
+>
+
 export class CustomFeedAPI implements FeedAPI {
-  agent: SessionAgent
-  params: GetCustomFeed.QueryParams
+  client: Client
+  params: CustomFeedParams
   userInterests?: string
 
   constructor({
-    agent,
+    client,
     feedParams,
     userInterests,
   }: {
-    agent: SessionAgent
-    feedParams: GetCustomFeed.QueryParams
+    client: Client
+    feedParams: CustomFeedParams
     userInterests?: string
   }) {
-    this.agent = agent
+    this.client = client
     this.params = feedParams
     this.userInterests = userInterests
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
     const contentLangs = getContentLanguages().join(',')
-    const res = await this.agent.app.bsky.feed.getFeed(
+    const res = await this.client.call(
+      app.bsky.feed.getFeed,
       {
         ...this.params,
         limit: 1,
       },
       {headers: {'Accept-Language': contentLangs}},
     )
-    return res.data.feed[0]
+    return res.feed[0]
   }
 
   async fetch({
@@ -52,41 +58,49 @@ export class CustomFeedAPI implements FeedAPI {
     limit: number
   }): Promise<FeedAPIResponse> {
     const contentLangs = getContentLanguages().join(',')
-    const agent = this.agent
     const isBlueskyOwned = isBlueskyOwnedFeed(this.params.feed)
 
-    const res = agent.did
-      ? await this.agent.app.bsky.feed.getFeed(
-          {
-            ...this.params,
-            cursor,
-            limit,
+    let feed: app.bsky.feed.defs.FeedViewPost[]
+    let resCursor: string | undefined
+
+    if (this.client.did) {
+      const res = await this.client.call(
+        app.bsky.feed.getFeed,
+        {
+          ...this.params,
+          cursor,
+          limit,
+        },
+        {
+          headers: {
+            ...(isBlueskyOwned
+              ? createBskyTopicsHeader(this.userInterests)
+              : {}),
+            'Accept-Language': contentLangs,
           },
-          {
-            headers: {
-              ...(isBlueskyOwned
-                ? createBskyTopicsHeader(this.userInterests)
-                : {}),
-              'Accept-Language': contentLangs,
-            },
-          },
-        )
-      : await loggedOutFetch({...this.params, cursor, limit})
-    if (res.success) {
-      // NOTE
-      // some custom feeds fail to enforce the pagination limit
-      // so we manually truncate here
-      // -prf
-      if (res.data.feed.length > limit) {
-        res.data.feed = res.data.feed.slice(0, limit)
-      }
-      return {
-        cursor: res.data.feed.length ? res.data.cursor : undefined,
-        feed: res.data.feed,
+        },
+      )
+      feed = res.feed
+      resCursor = res.cursor
+    } else {
+      const res = await loggedOutFetch({...this.params, cursor, limit})
+      if (!res.success) {
+        return {feed: []}
       }
+      feed = res.data.feed
+      resCursor = res.data.cursor
+    }
+
+    // NOTE
+    // some custom feeds fail to enforce the pagination limit
+    // so we manually truncate here
+    // -prf
+    if (feed.length > limit) {
+      feed = feed.slice(0, limit)
     }
     return {
-      feed: [],
+      cursor: feed.length ? resCursor : undefined,
+      feed,
     }
   }
 }
@@ -106,15 +120,16 @@ async function loggedOutFetch({
   feed: string
   limit: number
   cursor?: string
-}) {
+}): Promise<{success: boolean; data: app.bsky.feed.getFeed.$OutputBody}> {
   let contentLangs = getAppLanguageAsContentLanguage()
 
-  /**
-   * Copied from our root `Agent` class
-   * @see https://github.com/bluesky-social/atproto/blob/60df3fc652b00cdff71dd9235d98a7a4bb828f05/packages/api/src/agent.ts#L120
+  /*
+   * Copied from our root `Agent` class. The global (`;redact`-suffixed) app
+   * labelers are kept on the lex `Client` static (synced in
+   * `#/state/session/moderation`), replacing the old `AtpAgent.appLabelers`.
    */
   const labelersHeader = {
-    'atproto-accept-labelers': AtpAgent.appLabelers
+    'atproto-accept-labelers': Client.appLabelers
       .map(l => `${l};redact`)
       .join(', '),
   }
@@ -130,7 +145,7 @@ async function loggedOutFetch({
     },
   )
   let data = res.ok
-    ? (jsonStringToLex(await res.text()) as GetCustomFeed.OutputSchema)
+    ? (lexParse(await res.text()) as app.bsky.feed.getFeed.$OutputBody)
     : null
   if (data?.feed?.length) {
     return {
@@ -147,7 +162,7 @@ async function loggedOutFetch({
     {method: 'GET', headers: {'Accept-Language': '', ...labelersHeader}},
   )
   data = res.ok
-    ? (jsonStringToLex(await res.text()) as GetCustomFeed.OutputSchema)
+    ? (lexParse(await res.text()) as app.bsky.feed.getFeed.$OutputBody)
     : null
   if (data?.feed?.length) {
     return {

src/lib/api/feed/demo.ts

@@ -1,21 +1,28 @@
-import {type AppBskyFeedDefs} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
 
 import {DEMO_FEED} from '#/lib/demo'
-import {type SessionAgent} from '#/state/session'
+import {type app} from '#/lexicons'
+import {toLex} from '#/types/bsky'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 
 export class DemoFeedAPI implements FeedAPI {
-  agent: SessionAgent
+  client: Client
 
-  constructor({agent}: {agent: SessionAgent}) {
-    this.agent = agent
+  constructor({client}: {client: Client}) {
+    this.client = client
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    return DEMO_FEED.feed[0]
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
+    /*
+     * TODO(phase4): drop this cast once `#/lib/demo` (DEMO_FEED) sources its
+     * feed items from `#/lexicons`. Its records are still typed against the old
+     * `@atproto/api` FeedViewPost, which does not assign to the branded lexicon
+     * type this method must return.
+     */
+    return toLex(DEMO_FEED.feed[0])
   }
 
   async fetch(): Promise<FeedAPIResponse> {
-    return DEMO_FEED
+    return toLex(DEMO_FEED)
   }
 }

src/lib/api/feed/following.ts

@@ -1,20 +1,20 @@
-import {type AppBskyFeedDefs} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
 
-import {type SessionAgent} from '#/state/session'
+import {app} from '#/lexicons'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 
 export class FollowingFeedAPI implements FeedAPI {
-  agent: SessionAgent
+  client: Client
 
-  constructor({agent}: {agent: SessionAgent}) {
-    this.agent = agent
+  constructor({client}: {client: Client}) {
+    this.client = client
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    const res = await this.agent.getTimeline({
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
+    const res = await this.client.call(app.bsky.feed.getTimeline, {
       limit: 1,
     })
-    return res.data.feed[0]
+    return res.feed[0]
   }
 
   async fetch({
@@ -24,18 +24,13 @@ export class FollowingFeedAPI implements FeedAPI {
     cursor: string | undefined
     limit: number
   }): Promise<FeedAPIResponse> {
-    const res = await this.agent.getTimeline({
+    const res = await this.client.call(app.bsky.feed.getTimeline, {
       cursor,
       limit,
     })
-    if (res.success) {
-      return {
-        cursor: res.data.cursor,
-        feed: res.data.feed,
-      }
-    }
     return {
-      feed: [],
+      cursor: res.cursor,
+      feed: res.feed,
     }
   }
 }

src/lib/api/feed/home.ts

@@ -1,7 +1,8 @@
-import {type AppBskyFeedDefs} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
+import {type AtUriString} from '@atproto/syntax'
 
 import {PROD_DEFAULT_FEED} from '#/lib/constants'
-import {type SessionAgent} from '#/state/session'
+import {type app} from '#/lexicons'
 import {CustomFeedAPI} from './custom'
 import {FollowingFeedAPI} from './following'
 import {type FeedAPI, type FeedAPIResponse} from './types'
@@ -14,7 +15,11 @@ import {type FeedAPI, type FeedAPIResponse} from './types'
 // we use this fallback marker post to drive this instead. see Feed.tsx
 // for the usage.
 // -prf
-export const FALLBACK_MARKER_POST: AppBskyFeedDefs.FeedViewPost = {
+/*
+ * A sentinel post whose fields intentionally violate the branded lexicon
+ * formats (`uri`, `did`, `indexedAt`), so it is asserted into the view type.
+ */
+export const FALLBACK_MARKER_POST: app.bsky.feed.defs.FeedViewPost = {
   post: {
     uri: 'fallback-marker-post',
     cid: 'fake',
@@ -25,10 +30,10 @@ export const FALLBACK_MARKER_POST: AppBskyFeedDefs.FeedViewPost = {
     },
     indexedAt: new Date().toISOString(),
   },
-}
+} as unknown as app.bsky.feed.defs.FeedViewPost
 
 export class HomeFeedAPI implements FeedAPI {
-  agent: SessionAgent
+  client: Client
   following: FollowingFeedAPI
   discover: CustomFeedAPI
   usingDiscover = false
@@ -37,32 +42,32 @@ export class HomeFeedAPI implements FeedAPI {
 
   constructor({
     userInterests,
-    agent,
+    client,
   }: {
     userInterests?: string
-    agent: SessionAgent
+    client: Client
   }) {
-    this.agent = agent
-    this.following = new FollowingFeedAPI({agent})
+    this.client = client
+    this.following = new FollowingFeedAPI({client})
     this.discover = new CustomFeedAPI({
-      agent,
-      feedParams: {feed: PROD_DEFAULT_FEED('whats-hot')},
+      client,
+      feedParams: {feed: PROD_DEFAULT_FEED('whats-hot') as AtUriString},
     })
     this.userInterests = userInterests
   }
 
   reset() {
-    this.following = new FollowingFeedAPI({agent: this.agent})
+    this.following = new FollowingFeedAPI({client: this.client})
     this.discover = new CustomFeedAPI({
-      agent: this.agent,
-      feedParams: {feed: PROD_DEFAULT_FEED('whats-hot')},
+      client: this.client,
+      feedParams: {feed: PROD_DEFAULT_FEED('whats-hot') as AtUriString},
       userInterests: this.userInterests,
     })
     this.usingDiscover = false
     this.itemCursor = 0
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
     if (this.usingDiscover) {
       return this.discover.peekLatest()
     }
@@ -81,7 +86,7 @@ export class HomeFeedAPI implements FeedAPI {
     }
 
     let returnCursor
-    let posts: AppBskyFeedDefs.FeedViewPost[] = []
+    let posts: app.bsky.feed.defs.FeedViewPost[] = []
 
     if (!this.usingDiscover) {
       const res = await this.following.fetch({cursor, limit})

src/lib/api/feed/likes.ts

@@ -1,32 +1,29 @@
-import {
-  type AppBskyFeedDefs,
-  type AppBskyFeedGetActorLikes as GetActorLikes,
-} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
 
-import {type SessionAgent} from '#/state/session'
+import {app} from '#/lexicons'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 
 export class LikesFeedAPI implements FeedAPI {
-  agent: SessionAgent
-  params: GetActorLikes.QueryParams
+  client: Client
+  params: app.bsky.feed.getActorLikes.$Params
 
   constructor({
-    agent,
+    client,
     feedParams,
   }: {
-    agent: SessionAgent
-    feedParams: GetActorLikes.QueryParams
+    client: Client
+    feedParams: app.bsky.feed.getActorLikes.$Params
   }) {
-    this.agent = agent
+    this.client = client
     this.params = feedParams
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    const res = await this.agent.getActorLikes({
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
+    const res = await this.client.call(app.bsky.feed.getActorLikes, {
       ...this.params,
       limit: 1,
     })
-    return res.data.feed[0]
+    return res.feed[0]
   }
 
   async fetch({
@@ -36,21 +33,16 @@ export class LikesFeedAPI implements FeedAPI {
     cursor: string | undefined
     limit: number
   }): Promise<FeedAPIResponse> {
-    const res = await this.agent.getActorLikes({
+    const res = await this.client.call(app.bsky.feed.getActorLikes, {
       ...this.params,
       cursor,
       limit,
     })
-    if (res.success) {
-      // HACKFIX: the API incorrectly returns a cursor when there are no items -sfn
-      const isEmptyPage = res.data.feed.length === 0
-      return {
-        cursor: isEmptyPage ? undefined : res.data.cursor,
-        feed: res.data.feed,
-      }
-    }
+    // HACKFIX: the API incorrectly returns a cursor when there are no items -sfn
+    const isEmptyPage = res.feed.length === 0
     return {
-      feed: [],
+      cursor: isEmptyPage ? undefined : res.cursor,
+      feed: res.feed,
     }
   }
 }

src/lib/api/feed/list.ts

@@ -1,32 +1,29 @@
-import {
-  type Agent,
-  type AppBskyFeedDefs,
-  type AppBskyFeedGetListFeed as GetListFeed,
-} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
 
+import {app} from '#/lexicons'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 
 export class ListFeedAPI implements FeedAPI {
-  agent: Agent
-  params: GetListFeed.QueryParams
+  client: Client
+  params: app.bsky.feed.getListFeed.$Params
 
   constructor({
-    agent,
+    client,
     feedParams,
   }: {
-    agent: Agent
-    feedParams: GetListFeed.QueryParams
+    client: Client
+    feedParams: app.bsky.feed.getListFeed.$Params
   }) {
-    this.agent = agent
+    this.client = client
     this.params = feedParams
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    const res = await this.agent.app.bsky.feed.getListFeed({
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
+    const res = await this.client.call(app.bsky.feed.getListFeed, {
       ...this.params,
       limit: 1,
     })
-    return res.data.feed[0]
+    return res.feed[0]
   }
 
   async fetch({
@@ -36,19 +33,14 @@ export class ListFeedAPI implements FeedAPI {
     cursor: string | undefined
     limit: number
   }): Promise<FeedAPIResponse> {
-    const res = await this.agent.app.bsky.feed.getListFeed({
+    const res = await this.client.call(app.bsky.feed.getListFeed, {
       ...this.params,
       cursor,
       limit,
     })
-    if (res.success) {
-      return {
-        cursor: res.data.cursor,
-        feed: res.data.feed,
-      }
-    }
     return {
-      feed: [],
+      cursor: res.cursor,
+      feed: res.feed,
     }
   }
 }

src/lib/api/feed/merge.ts

@@ -1,4 +1,5 @@
-import {type AppBskyFeedDefs, type AppBskyFeedGetTimeline} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
+import {type AtUriString} from '@atproto/syntax'
 import shuffle from 'lodash.shuffle'
 
 import {bundleAsync} from '#/lib/async/bundle'
@@ -6,7 +7,8 @@ import {timeout} from '#/lib/async/timeout'
 import {feedUriToHref} from '#/lib/strings/url-helpers'
 import {getContentLanguages} from '#/state/preferences/languages'
 import {type FeedParams} from '#/state/queries/post-feed'
-import {type SessionAgent} from '#/state/session'
+import {app} from '#/lexicons'
+import {toLex} from '#/types/bsky'
 import {FeedTuner} from '../feed-manip'
 import {type FeedTunerFn} from '../feed-manip'
 import {
@@ -19,9 +21,21 @@ import {createBskyTopicsHeader, isBlueskyOwnedFeed} from './utils'
 const REQUEST_WAIT_MS = 500 // 500ms
 const POST_AGE_CUTOFF = 60e3 * 60 * 24 // 24hours
 
+/**
+ * Internal result shape for a single feed page fetch. Lex `client.call`
+ * returns the response body directly (throwing on error), so we no longer
+ * carry the old `{success, headers, data}` wrapper - `success` here just
+ * distinguishes an empty/errored fetch from a populated one.
+ */
+type FeedPage = {
+  success: boolean
+  cursor?: string
+  feed: app.bsky.feed.defs.FeedViewPost[]
+}
+
 export class MergeFeedAPI implements FeedAPI {
   userInterests?: string
-  agent: SessionAgent
+  client: Client
   params: FeedParams
   feedTuners: FeedTunerFn[]
   following: MergeFeedSource_Following
@@ -31,29 +45,29 @@ export class MergeFeedAPI implements FeedAPI {
   sampleCursor = 0
 
   constructor({
-    agent,
+    client,
     feedParams,
     feedTuners,
     userInterests,
   }: {
-    agent: SessionAgent
+    client: Client
     feedParams: FeedParams
     feedTuners: FeedTunerFn[]
     userInterests?: string
   }) {
-    this.agent = agent
+    this.client = client
     this.params = feedParams
     this.feedTuners = feedTuners
     this.userInterests = userInterests
     this.following = new MergeFeedSource_Following({
-      agent: this.agent,
+      client: this.client,
       feedTuners: this.feedTuners,
     })
   }
 
   reset() {
     this.following = new MergeFeedSource_Following({
-      agent: this.agent,
+      client: this.client,
       feedTuners: this.feedTuners,
     })
     this.customFeeds = []
@@ -65,7 +79,7 @@ export class MergeFeedAPI implements FeedAPI {
         this.params.mergeFeedSources.map(
           feedUri =>
             new MergeFeedSource_Custom({
-              agent: this.agent,
+              client: this.client,
               feedUri,
               feedTuners: this.feedTuners,
               userInterests: this.userInterests,
@@ -77,11 +91,11 @@ export class MergeFeedAPI implements FeedAPI {
     }
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
-    const res = await this.agent.getTimeline({
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
+    const res = await this.client.call(app.bsky.feed.getTimeline, {
       limit: 1,
     })
-    return res.data.feed[0]
+    return res.feed[0]
   }
 
   async fetch({
@@ -124,7 +138,7 @@ export class MergeFeedAPI implements FeedAPI {
     await Promise.all(promises)
 
     // assemble a response by sampling from feeds with content
-    const posts: AppBskyFeedDefs.FeedViewPost[] = []
+    const posts: app.bsky.feed.defs.FeedViewPost[] = []
     while (posts.length < limit) {
       let slice = this.sampleItem()
       if (slice[0]) {
@@ -172,21 +186,21 @@ export class MergeFeedAPI implements FeedAPI {
 }
 
 class MergeFeedSource {
-  agent: SessionAgent
+  client: Client
   feedTuners: FeedTunerFn[]
   sourceInfo: ReasonFeedSource | undefined
   cursor: string | undefined = undefined
-  queue: AppBskyFeedDefs.FeedViewPost[] = []
+  queue: app.bsky.feed.defs.FeedViewPost[] = []
   hasMore = true
 
   constructor({
-    agent,
+    client,
     feedTuners,
   }: {
-    agent: SessionAgent
+    client: Client
     feedTuners: FeedTunerFn[]
   }) {
-    this.agent = agent
+    this.client = client
     this.feedTuners = feedTuners
   }
 
@@ -198,7 +212,7 @@ class MergeFeedSource {
     return this.hasMore && this.queue.length === 0
   }
 
-  take(n: number): AppBskyFeedDefs.FeedViewPost[] {
+  take(n: number): app.bsky.feed.defs.FeedViewPost[] {
     return this.queue.splice(0, n)
   }
 
@@ -209,9 +223,9 @@ class MergeFeedSource {
   _fetchNextInner = bundleAsync(async (n: number) => {
     const res = await this._getFeed(this.cursor, n)
     if (res.success) {
-      this.cursor = res.data.cursor
-      if (res.data.feed.length) {
-        this.queue = this.queue.concat(res.data.feed)
+      this.cursor = res.cursor
+      if (res.feed.length) {
+        this.queue = this.queue.concat(res.feed)
       } else {
         this.hasMore = false
       }
@@ -223,7 +237,7 @@ class MergeFeedSource {
   protected _getFeed(
     _cursor: string | undefined,
     _limit: number,
-  ): Promise<AppBskyFeedGetTimeline.Response> {
+  ): Promise<FeedPage> {
     throw new Error('Must be overridden')
   }
 }
@@ -238,39 +252,51 @@ class MergeFeedSource_Following extends MergeFeedSource {
   protected async _getFeed(
     cursor: string | undefined,
     limit: number,
-  ): Promise<AppBskyFeedGetTimeline.Response> {
-    const res = await this.agent.getTimeline({cursor, limit})
+  ): Promise<FeedPage> {
+    const res = await this.client.call(app.bsky.feed.getTimeline, {
+      cursor,
+      limit,
+    })
     // run the tuner pre-emptively to ensure better mixing
-    const slices = this.tuner.tune(res.data.feed, {
+    const slices = this.tuner.tune(res.feed, {
       dryRun: false,
     })
-    res.data.feed = slices.map(slice => slice._feedPost)
-    return res
+    return {
+      success: true,
+      cursor: res.cursor,
+      /*
+       * TODO(phase4): drop the toLex once `#/lib/api/feed-manip` (FeedTuner)
+       * flips its FeedViewPost source from `@atproto/api` to `#/lexicons`. Its
+       * `_feedPost` is still the old-world view type, which does not assign to
+       * the branded lexicon type this page carries.
+       */
+      feed: slices.map(slice => toLex(slice._feedPost)),
+    }
   }
 }
 
 class MergeFeedSource_Custom extends MergeFeedSource {
-  agent: SessionAgent
+  client: Client
   minDate: Date
   feedUri: string
   userInterests?: string
 
   constructor({
-    agent,
+    client,
     feedUri,
     feedTuners,
     userInterests,
   }: {
-    agent: SessionAgent
+    client: Client
     feedUri: string
     feedTuners: FeedTunerFn[]
     userInterests?: string
   }) {
     super({
-      agent,
+      client,
       feedTuners,
     })
-    this.agent = agent
+    this.client = client
     this.feedUri = feedUri
     this.userInterests = userInterests
     this.sourceInfo = {
@@ -284,15 +310,16 @@ class MergeFeedSource_Custom extends MergeFeedSource {
   protected async _getFeed(
     cursor: string | undefined,
     limit: number,
-  ): Promise<AppBskyFeedGetTimeline.Response> {
+  ): Promise<FeedPage> {
     try {
       const contentLangs = getContentLanguages().join(',')
       const isBlueskyOwned = isBlueskyOwnedFeed(this.feedUri)
-      const res = await this.agent.app.bsky.feed.getFeed(
+      const res = await this.client.call(
+        app.bsky.feed.getFeed,
         {
           cursor,
           limit,
-          feed: this.feedUri,
+          feed: this.feedUri as AtUriString,
         },
         {
           headers: {
@@ -303,26 +330,25 @@ class MergeFeedSource_Custom extends MergeFeedSource {
           },
         },
       )
+      let feed = res.feed
       // NOTE
       // some custom feeds fail to enforce the pagination limit
       // so we manually truncate here
       // -prf
-      if (limit && res.data.feed.length > limit) {
-        res.data.feed = res.data.feed.slice(0, limit)
+      if (limit && feed.length > limit) {
+        feed = feed.slice(0, limit)
       }
       // filter out older posts
-      res.data.feed = res.data.feed.filter(
-        post => new Date(post.post.indexedAt) > this.minDate,
-      )
+      feed = feed.filter(post => new Date(post.post.indexedAt) > this.minDate)
       // attach source info
-      for (const post of res.data.feed) {
+      for (const post of feed) {
         // @ts-ignore
         post.__source = this.sourceInfo
       }
-      return res
+      return {success: true, cursor: res.cursor, feed}
     } catch {
       // dont bubble custom-feed errors
-      return {success: false, headers: {}, data: {feed: []}}
+      return {success: false, feed: []}
     }
   }
 }

src/lib/api/feed/posts.ts

@@ -1,25 +1,22 @@
-import {
-  type Agent,
-  type AppBskyFeedDefs,
-  type AppBskyFeedGetPosts,
-} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
 
 import {logger} from '#/logger'
+import {app} from '#/lexicons'
 import {type FeedAPI, type FeedAPIResponse} from './types'
 
 export class PostListFeedAPI implements FeedAPI {
-  agent: Agent
-  params: AppBskyFeedGetPosts.QueryParams
-  peek: AppBskyFeedDefs.FeedViewPost | null = null
+  client: Client
+  params: app.bsky.feed.getPosts.$Params
+  peek: app.bsky.feed.defs.FeedViewPost | null = null
 
   constructor({
-    agent,
+    client,
     feedParams,
   }: {
-    agent: Agent
-    feedParams: AppBskyFeedGetPosts.QueryParams
+    client: Client
+    feedParams: app.bsky.feed.getPosts.$Params
   }) {
-    this.agent = agent
+    this.client = client
     if (feedParams.uris.length > 25) {
       logger.warn(
         `Too many URIs provided - expected 25, got ${feedParams.uris.length}`,
@@ -30,23 +27,18 @@ export class PostListFeedAPI implements FeedAPI {
     }
   }
 
-  async peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost> {
+  async peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost> {
     if (this.peek) return this.peek
     throw new Error('Has not fetched yet')
   }
 
   async fetch({}: {}): Promise<FeedAPIResponse> {
-    const res = await this.agent.app.bsky.feed.getPosts({
+    const res = await this.client.call(app.bsky.feed.getPosts, {
       ...this.params,
     })
-    if (res.success) {
-      this.peek = {post: res.data.posts[0]}
-      return {
-        feed: res.data.posts.map(post => ({post})),
-      }
-    }
+    this.peek = {post: res.posts[0]}
     return {
-      feed: [],
+      feed: res.posts.map(post => ({post})),
     }
   }
 }

src/lib/api/feed/types.ts

@@ -1,12 +1,12 @@
-import {type AppBskyFeedDefs} from '@atproto/api'
+import {type app} from '#/lexicons'
 
 export interface FeedAPIResponse {
   cursor?: string
-  feed: AppBskyFeedDefs.FeedViewPost[]
+  feed: app.bsky.feed.defs.FeedViewPost[]
 }
 
 export interface FeedAPI {
-  peekLatest(): Promise<AppBskyFeedDefs.FeedViewPost>
+  peekLatest(): Promise<app.bsky.feed.defs.FeedViewPost>
   fetch({
     cursor,
     limit,

src/lib/api/feed/utils.ts

@@ -1,4 +1,4 @@
-import {AtUri} from '@atproto/api'
+import {AtUri} from '@atproto/syntax'
 
 import {BSKY_FEED_OWNER_DIDS} from '#/lib/constants'
 import {type UsePreferencesQueryResponse} from '#/state/queries/preferences'

src/lib/api/index.ts

@@ -1,25 +1,14 @@
-import {
-  type $Typed,
-  type AppBskyEmbedExternal,
-  type AppBskyEmbedGallery,
-  type AppBskyEmbedImages,
-  type AppBskyEmbedRecord,
-  type AppBskyEmbedRecordWithMedia,
-  type AppBskyEmbedVideo,
-  AppBskyFeedPost,
-  BlobRef,
-  ChatBskyGroupDefs,
-  type ComAtprotoLabelDefs,
-  type ComAtprotoRepoApplyWrites,
-  type ComAtprotoRepoStrongRef,
-  RichText,
-} from '@atproto/api'
 import {TID} from '@atproto/common-web'
+import {type $Typed} from '@atproto/lex'
+import {type Client} from '@atproto/lex-client'
+import {
+  type AtUriString,
+  toDatetimeString,
+  type UriString,
+} from '@atproto/syntax'
+import {RichText} from '@bsky.app/sdk/richtext'
 import {t} from '@lingui/core/macro'
 import {type QueryClient} from '@tanstack/react-query'
-import {sha256} from 'js-sha256'
-import {CID} from 'multiformats/cid'
-import * as Hasher from 'multiformats/hashes/hasher'
 
 import {IMAGE_SIZE_CONFIG_POSTS} from '#/lib/constants'
 import {isNetworkError} from '#/lib/strings/errors'
@@ -34,18 +23,33 @@ import {
   createThreadgateRecord,
   threadgateAllowUISettingToAllowRecordValue,
 } from '#/state/queries/threadgate'
-import {type SessionAgent} from '#/state/session'
 import {
   type EmbedDraft,
   type PostDraft,
   type ThreadDraft,
 } from '#/view/com/composer/state/composer'
+import {app, chat, com} from '#/lexicons'
 import * as bsky from '#/types/bsky'
 import {createGIFDescription} from '../gif-alt-text'
+import {computeCid} from './computeCid'
+import {type ResolveClients} from './resolve'
 import {uploadBlob} from './upload-blob'
 
 export {uploadBlob}
 
+/**
+ * The lex clients the post pipeline needs. `pdsClient` handles writes to the
+ * user's repo (applyWrites, uploadBlob) - proxied to their PDS, never the
+ * appview. `appviewClient` handles the `app.bsky.*` reads (getPosts, when
+ * resolving a reply's root). `resolveClients` is threaded to the link/gif
+ * resolvers, which need the appview + chat + bridge agent (design section H).
+ */
+export type PostClients = {
+  pdsClient: Client
+  appviewClient: Client
+  resolveClients: ResolveClients
+}
+
 interface PostOpts {
   thread: ThreadDraft
   replyTo?: string
@@ -54,20 +58,21 @@ interface PostOpts {
 }
 
 export async function post(
-  agent: SessionAgent,
+  clients: PostClients,
   queryClient: QueryClient,
   opts: PostOpts,
 ) {
+  const {pdsClient, appviewClient, resolveClients} = clients
   const thread = opts.thread
   opts.onStateChange?.(t`Processing...`)
 
   let replyPromise:
-    | Promise<AppBskyFeedPost.Record['reply']>
-    | AppBskyFeedPost.Record['reply']
+    | Promise<app.bsky.feed.post.Main['reply']>
+    | app.bsky.feed.post.Main['reply']
     | undefined
   if (opts.replyTo) {
     // Not awaited to avoid waterfalls.
-    replyPromise = resolveReply(agent, opts.replyTo)
+    replyPromise = resolveReply(appviewClient, opts.replyTo)
   }
 
   // add top 3 languages from user preferences if langs is provided
@@ -76,8 +81,8 @@ export async function post(
     langs = opts.langs.slice(0, 3)
   }
 
-  const did = agent.assertDid
-  const writes: $Typed<ComAtprotoRepoApplyWrites.Create>[] = []
+  const did = pdsClient.assertDid
+  const writes: com.atproto.repo.applyWrites.$InputBody['writes'] = []
   const uris: string[] = []
 
   let now = new Date()
@@ -86,15 +91,23 @@ export async function post(
   for (let i = 0; i < thread.posts.length; i++) {
     const draft = thread.posts[i]
 
-    // Not awaited to avoid waterfalls.
-    const rtPromise = resolveRT(agent, draft.richtext)
+    /*
+     * Not awaited to avoid waterfalls. `draft.richtext` is still an
+     * `@atproto/api` RichText (composer state is migrated by Task 7); the SDK
+     * RichText is structurally the same transplant, so bridge it here.
+     * TODO(phase4): drop toLex once composer state migrates to SDK RichText.
+     */
+    const rtPromise = resolveRT(
+      resolveClients.appview,
+      bsky.toLex<RichText>(draft.richtext),
+    )
     const embedPromise = resolveEmbed(
-      agent,
+      clients,
       queryClient,
       draft,
       opts.onStateChange,
     )
-    let labels: $Typed<ComAtprotoLabelDefs.SelfLabels> | undefined
+    let labels: $Typed<com.atproto.label.defs.SelfLabels> | undefined
     if (draft.labels.length) {
       labels = {
         $type: 'com.atproto.label.defs#selfLabels',
@@ -107,17 +120,17 @@ export async function post(
     now.setMilliseconds(now.getMilliseconds() + 1)
     tid = TID.next(tid)
     const rkey = tid.toString()
-    const uri = `at://${did}/app.bsky.feed.post/${rkey}`
+    const uri = `at://${did}/app.bsky.feed.post/${rkey}` as AtUriString
     uris.push(uri)
 
     const rt = await rtPromise
     const embed = await embedPromise
     const reply = await replyPromise
-    const record: AppBskyFeedPost.Record = {
+    const record: app.bsky.feed.post.Main = {
       // IMPORTANT: $type has to exist, CID is calculated with the `$type` field
       // present and will produce the wrong CID if you omit it.
       $type: 'app.bsky.feed.post',
-      createdAt: now.toISOString(),
+      createdAt: toDatetimeString(now),
       text: rt.text,
       facets: rt.facets,
       reply,
@@ -125,11 +138,17 @@ export async function post(
       langs,
       labels,
     }
+    /*
+     * `value` is typed `LexMap` (a loose index-signature map). A generated
+     * record type is a valid LexMap at runtime but a strict interface is not
+     * assignable to an index-signature type, so widen with `toLex` at this
+     * boundary. Not a brand cast - the record is already fully typed.
+     */
     writes.push({
       $type: 'com.atproto.repo.applyWrites#create',
       collection: 'app.bsky.feed.post',
       rkey: rkey,
-      value: record,
+      value: bsky.toLex(record),
     })
 
     if (i === 0 && thread.threadgate.some(tg => tg.type !== 'everybody')) {
@@ -137,11 +156,14 @@ export async function post(
         $type: 'com.atproto.repo.applyWrites#create',
         collection: 'app.bsky.feed.threadgate',
         rkey: rkey,
-        value: createThreadgateRecord({
-          createdAt: now.toISOString(),
-          post: uri,
-          allow: threadgateAllowUISettingToAllowRecordValue(thread.threadgate),
-        }),
+        value: bsky.toLex(
+          createThreadgateRecord({
+            post: uri,
+            allow: threadgateAllowUISettingToAllowRecordValue(
+              thread.threadgate,
+            ),
+          }),
+        ),
       })
     }
 
@@ -153,12 +175,12 @@ export async function post(
         $type: 'com.atproto.repo.applyWrites#create',
         collection: 'app.bsky.feed.postgate',
         rkey: rkey,
-        value: {
+        value: bsky.toLex({
           ...thread.postgate,
           $type: 'app.bsky.feed.postgate',
           createdAt: now.toISOString(),
           post: uri,
-        },
+        }),
       })
     }
 
@@ -174,8 +196,8 @@ export async function post(
   }
 
   try {
-    await agent.com.atproto.repo.applyWrites({
-      repo: agent.assertDid,
+    await pdsClient.call(com.atproto.repo.applyWrites, {
+      repo: did,
       writes: writes,
       validate: true,
     })
@@ -196,14 +218,18 @@ export async function post(
   return {uris}
 }
 
-async function resolveRT(agent: SessionAgent, richtext: RichText) {
+async function resolveRT(appviewClient: Client, richtext: RichText) {
   const trimmedText = richtext.text
     // Trim leading whitespace-only lines (but don't break ASCII art).
     .replace(/^(\s*\n)+/, '')
     // Trim any trailing whitespace.
     .trimEnd()
   let rt = new RichText({text: trimmedText}, {cleanNewlines: true})
-  await rt.detectFacets(agent)
+  /*
+   * Facet detection resolves handles via `com.atproto.identity.resolveHandle`,
+   * which the appview client serves (design section B).
+   */
+  await rt.detectFacets(appviewClient)
 
   rt = shortenLinks(rt)
   rt = stripInvalidMentions(rt)
@@ -216,9 +242,9 @@ export class ReplyDeletedError extends Error {
   }
 }
 
-async function resolveReply(agent: SessionAgent, replyTo: string) {
-  const {data} = await agent.app.bsky.feed.getPosts({
-    uris: [replyTo],
+async function resolveReply(appviewClient: Client, replyTo: string) {
+  const data = await appviewClient.call(app.bsky.feed.getPosts, {
+    uris: [replyTo as AtUriString],
   })
   const parentPost = data.posts[0]
   if (!parentPost) {
@@ -229,14 +255,9 @@ async function resolveReply(agent: SessionAgent, replyTo: string) {
     uri: parentPost.uri,
     cid: parentPost.cid,
   }
-  let rootRef = parentRef
+  let rootRef: com.atproto.repo.strongRef.Main = parentRef
 
-  if (
-    bsky.dangerousIsType<AppBskyFeedPost.Record>(
-      parentPost.record,
-      AppBskyFeedPost.isRecord,
-    )
-  ) {
+  if (bsky.isType(app.bsky.feed.post, parentPost.record)) {
     if (parentPost.record.reply) {
       rootRef = parentPost.record.reply.root
     }
@@ -249,23 +270,15 @@ async function resolveReply(agent: SessionAgent, replyTo: string) {
 }
 
 async function resolveEmbed(
-  agent: SessionAgent,
+  clients: PostClients,
   queryClient: QueryClient,
   draft: PostDraft,
   onStateChange: ((state: string) => void) | undefined,
-): Promise<
-  | $Typed<AppBskyEmbedImages.Main>
-  | $Typed<AppBskyEmbedGallery.Main>
-  | $Typed<AppBskyEmbedVideo.Main>
-  | $Typed<AppBskyEmbedExternal.Main>
-  | $Typed<AppBskyEmbedRecord.Main>
-  | $Typed<AppBskyEmbedRecordWithMedia.Main>
-  | undefined
-> {
+): Promise<app.bsky.feed.post.Main['embed']> {
   if (draft.embed.quote) {
     const [resolvedMedia, resolvedQuote] = await Promise.all([
-      resolveMedia(agent, queryClient, draft.embed, onStateChange),
-      resolveRecord(agent, queryClient, draft.embed.quote.uri),
+      resolveMedia(clients, queryClient, draft.embed, onStateChange),
+      resolveRecord(clients, queryClient, draft.embed.quote.uri),
     ])
     if (resolvedMedia) {
       return {
@@ -283,7 +296,7 @@ async function resolveEmbed(
     }
   }
   const resolvedMedia = await resolveMedia(
-    agent,
+    clients,
     queryClient,
     draft.embed,
     onStateChange,
@@ -294,7 +307,7 @@ async function resolveEmbed(
   if (draft.embed.link) {
     const resolvedLink = await fetchResolveLinkQuery(
       queryClient,
-      agent,
+      clients.resolveClients,
       draft.embed.link.uri,
     )
     if (resolvedLink.type === 'record') {
@@ -308,24 +321,25 @@ async function resolveEmbed(
 }
 
 async function resolveMedia(
-  agent: SessionAgent,
+  clients: PostClients,
   queryClient: QueryClient,
   embedDraft: EmbedDraft,
   onStateChange: ((state: string) => void) | undefined,
 ): Promise<
-  | $Typed<AppBskyEmbedExternal.Main>
-  | $Typed<AppBskyEmbedImages.Main>
-  | $Typed<AppBskyEmbedGallery.Main>
-  | $Typed<AppBskyEmbedVideo.Main>
+  | $Typed<app.bsky.embed.external.Main>
+  | $Typed<app.bsky.embed.images.Main>
+  | $Typed<app.bsky.embed.gallery.Main>
+  | $Typed<app.bsky.embed.video.Main>
   | undefined
 > {
+  const {pdsClient, resolveClients} = clients
   if (embedDraft.media?.type === 'images') {
     const imagesDraft = embedDraft.media.images
     logger.debug(`Uploading images`, {
       count: imagesDraft.length,
     })
     onStateChange?.(t`Uploading images...`)
-    const images: AppBskyEmbedImages.Image[] = await Promise.all(
+    const images: app.bsky.embed.images.Image[] = await Promise.all(
       imagesDraft.map(async (image, i) => {
         logger.debug(`Compressing image #${i}`)
         const {path, width, height, mime} = await compressImage(
@@ -333,9 +347,9 @@ async function resolveMedia(
           IMAGE_SIZE_CONFIG_POSTS,
         )
         logger.debug(`Uploading image #${i}`)
-        const res = await uploadBlob(agent, path, mime)
+        const res = await uploadBlob(pdsClient, path, mime)
         return {
-          image: res.data.blob,
+          image: res.blob,
           alt: image.alt,
           aspectRatio: {width, height},
         }
@@ -352,7 +366,7 @@ async function resolveMedia(
       count: imagesDraft.length,
     })
     onStateChange?.(t`Uploading images...`)
-    const items: $Typed<AppBskyEmbedGallery.Image>[] = await Promise.all(
+    const items: $Typed<app.bsky.embed.gallery.Image>[] = await Promise.all(
       imagesDraft.map(async (image, i) => {
         logger.debug(`Compressing image #${i}`)
         const {path, width, height, mime} = await compressImage(
@@ -360,10 +374,10 @@ async function resolveMedia(
           IMAGE_SIZE_CONFIG_POSTS,
         )
         logger.debug(`Uploading image #${i}`)
-        const res = await uploadBlob(agent, path, mime)
+        const res = await uploadBlob(pdsClient, path, mime)
         return {
           $type: 'app.bsky.embed.gallery#image' as const,
-          image: res.data.blob,
+          image: res.blob,
           alt: image.alt,
           aspectRatio: {width, height},
         }
@@ -383,10 +397,10 @@ async function resolveMedia(
       videoDraft.captions
         .filter(caption => caption.lang !== '')
         .map(async caption => {
-          const {data} = await agent.uploadBlob(caption.file, {
+          const res = await pdsClient.uploadBlob(caption.file, {
             encoding: 'text/vtt',
           })
-          return {lang: caption.lang, file: data.blob}
+          return {lang: caption.lang, file: res.body.blob}
         }),
     )
 
@@ -406,7 +420,13 @@ async function resolveMedia(
 
     return {
       $type: 'app.bsky.embed.video',
-      video: videoDraft.pendingPublish.blobRef,
+      /*
+       * The video blob is a legacy `@atproto/api` BlobRef from the not-yet
+       * -migrated video pipeline (getJobStatus, in composer state/video). Its
+       * structural shape matches the lexicon blob field; the CID hasher handles
+       * both class instances and plain lex blobs (see computeCid).
+       */
+      video: bsky.toLex(videoDraft.pendingPublish.blobRef),
       alt: videoDraft.altText || undefined,
       captions: captions.length === 0 ? undefined : captions,
       aspectRatio,
@@ -416,22 +436,18 @@ async function resolveMedia(
   }
   if (embedDraft.media?.type === 'gif') {
     const gifDraft = embedDraft.media
-    const resolvedGif = await fetchResolveGifQuery(
-      queryClient,
-      agent,
-      gifDraft.gif,
-    )
-    let blob: BlobRef | undefined
+    const resolvedGif = await fetchResolveGifQuery(queryClient, gifDraft.gif)
+    let blob: app.bsky.embed.external.External['thumb']
     if (resolvedGif.thumb) {
       onStateChange?.(t`Uploading link thumbnail...`)
       const {path, mime} = resolvedGif.thumb.source
-      const response = await uploadBlob(agent, path, mime)
-      blob = response.data.blob
+      const response = await uploadBlob(pdsClient, path, mime)
+      blob = response.blob
     }
     return {
       $type: 'app.bsky.embed.external',
       external: {
-        uri: resolvedGif.uri,
+        uri: resolvedGif.uri as UriString,
         title: resolvedGif.title,
         description: createGIFDescription(resolvedGif.title, gifDraft.alt),
         thumb: blob,
@@ -441,36 +457,42 @@ async function resolveMedia(
   if (embedDraft.link) {
     const resolvedLink = await fetchResolveLinkQuery(
       queryClient,
-      agent,
+      resolveClients,
       embedDraft.link.uri,
     )
     if (resolvedLink.type === 'external') {
-      let blob: BlobRef | undefined
+      let blob: app.bsky.embed.external.External['thumb']
       if (resolvedLink.thumb) {
         onStateChange?.(t`Uploading link thumbnail...`)
         const {path, mime} = resolvedLink.thumb.source
-        const response = await uploadBlob(agent, path, mime)
-        blob = response.data.blob
+        const response = await uploadBlob(pdsClient, path, mime)
+        blob = response.blob
       }
       return {
         $type: 'app.bsky.embed.external',
         external: {
-          uri: resolvedLink.uri,
+          uri: resolvedLink.uri as UriString,
           title: resolvedLink.title,
           description: resolvedLink.description,
           thumb: blob,
-          associatedRefs: resolvedLink.associatedRefs,
+          /*
+           * associatedRefs comes from getLinkMeta, still typed with the old
+           * `@atproto/api` StrongRef (link-meta.ts is out of scope). The shape
+           * is identical; bridge with toLex.
+           * TODO(phase4): drop toLex once link-meta migrates.
+           */
+          associatedRefs: bsky.toLex(resolvedLink.associatedRefs),
         },
       }
     }
     if (
       resolvedLink.type === 'chat-invite' &&
-      ChatBskyGroupDefs.isJoinLinkPreviewView(resolvedLink.view)
+      bsky.isType(chat.bsky.group.defs.joinLinkPreviewView, resolvedLink.view)
     ) {
       return {
         $type: 'app.bsky.embed.external',
         external: {
-          uri: resolvedLink.uri,
+          uri: resolvedLink.uri as UriString,
           title: resolvedLink.view.name,
           description: `${resolvedLink.view.memberCount}/${resolvedLink.view.memberLimit}`,
         },
@@ -481,100 +503,17 @@ async function resolveMedia(
 }
 
 async function resolveRecord(
-  agent: SessionAgent,
+  clients: PostClients,
   queryClient: QueryClient,
   uri: string,
-): Promise<ComAtprotoRepoStrongRef.Main> {
-  const resolvedLink = await fetchResolveLinkQuery(queryClient, agent, uri)
+): Promise<com.atproto.repo.strongRef.Main> {
+  const resolvedLink = await fetchResolveLinkQuery(
+    queryClient,
+    clients.resolveClients,
+    uri,
+  )
   if (resolvedLink.type !== 'record') {
     throw Error(t`Expected uri to resolve to a record`)
   }
   return resolvedLink.record
 }
-
-// The built-in hashing functions from multiformats (`multiformats/hashes/sha2`)
-// are meant for Node.js, this is the cross-platform equivalent.
-const mf_sha256 = Hasher.from({
-  name: 'sha2-256',
-  code: 0x12,
-  encode: input => {
-    const digest = sha256.arrayBuffer(input)
-    return new Uint8Array(digest)
-  },
-})
-
-async function computeCid(record: AppBskyFeedPost.Record): Promise<string> {
-  /*
-   * Lazily loaded since it's only needed when posting a thread, and its
-   * `cborg` dependency is ~190KB that would otherwise be in the initial
-   * web bundle.
-   */
-  const dcbor = await import('@ipld/dag-cbor')
-  // IMPORTANT: `prepareObject` prepares the record to be hashed by removing
-  // fields with undefined value, and converting BlobRef instances to the
-  // right IPLD representation.
-  const prepared = prepareForHashing(record)
-  // 1. Encode the record into DAG-CBOR format
-  const encoded = dcbor.encode(prepared)
-  // 2. Hash the record in SHA-256 (code 0x12)
-  const digest = await mf_sha256.digest(encoded)
-  // 3. Create a CIDv1, specifying DAG-CBOR as content (code 0x71)
-  const cid = CID.createV1(0x71, digest)
-  // 4. Get the Base32 representation of the CID (`b` prefix)
-  return cid.toString()
-}
-
-// Returns a transformed version of the object for use in DAG-CBOR.
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-function prepareForHashing(v: any): any {
-  // IMPORTANT: BlobRef#ipld() returns the correct object we need for hashing,
-  // the API client will convert this for you but we're hashing in the client,
-  // so we need it *now*.
-  if (v instanceof BlobRef) {
-    return v.ipld()
-  }
-
-  // Walk through arrays
-  if (Array.isArray(v)) {
-    let pure = true
-    const mapped = v.map(value => {
-      if (value !== (value = prepareForHashing(value))) {
-        pure = false
-      }
-      return value
-    })
-    return pure ? v : mapped
-  }
-
-  // Walk through plain objects
-  if (isPlainObject(v)) {
-    const obj: Record<string, unknown> = {}
-    let pure = true
-    for (const key in v) {
-      // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
-      let value = v[key]
-      // `value` is undefined
-      if (value === undefined) {
-        pure = false
-        continue
-      }
-      // `prepareObject` returned a value that's different from what we had before
-      if (value !== (value = prepareForHashing(value))) {
-        pure = false
-      }
-      obj[key] = value
-    }
-    // Return as is if we haven't needed to tamper with anything
-    return pure ? v : obj
-  }
-  return v
-}
-
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-function isPlainObject(v: any): boolean {
-  if (typeof v !== 'object' || v === null) {
-    return false
-  }
-  const proto = Object.getPrototypeOf(v)
-  return proto === Object.prototype || proto === null
-}

src/lib/api/resolve.ts

@@ -1,11 +1,7 @@
-import {
-  type AppBskyFeedDefs,
-  type AppBskyGraphDefs,
-  type ComAtprotoRepoStrongRef,
-} from '@atproto/api'
-import {AtUri} from '@atproto/api'
+import {type Client} from '@atproto/lex-client'
+import {AtUri, type AtUriString, type HandleString} from '@atproto/syntax'
 
-import {DM_SERVICE_HEADERS, IMAGE_SIZE_CONFIG_2K_1MB} from '#/lib/constants'
+import {IMAGE_SIZE_CONFIG_2K_1MB} from '#/lib/constants'
 import {getLinkMeta, type LinkMeta} from '#/lib/link-meta/link-meta'
 import {resolveShortLink} from '#/lib/link-meta/resolve-short-link'
 import {downloadAndResize} from '#/lib/media/manip'
@@ -29,8 +25,21 @@ import {createComposerImage} from '#/state/gallery'
 import {type ChatInvitePreview} from '#/state/queries/join-links'
 import {type SessionAgent} from '#/state/session'
 import {type Gif} from '#/features/gifPicker/types'
+import {app, chat, com} from '#/lexicons'
 import {createGIFDescription} from '../gif-alt-text'
 
+/**
+ * Clients the link resolver needs. `appview` serves the `app.bsky.*` feed/graph
+ * reads plus handle resolution; `chat` serves the group join-link previews.
+ * `agent` is still threaded through to {@link getLinkMeta}, which has not yet
+ * migrated off the bridge - it only reads the (unused) service URL from it.
+ */
+export type ResolveClients = {
+  appview: Client
+  chat: Client
+  agent: SessionAgent
+}
+
 type ResolvedExternalLink = {
   type: 'external'
   uri: string
@@ -47,30 +56,30 @@ type ResolvedExternalLink = {
 
 type ResolvedPostRecord = {
   type: 'record'
-  record: ComAtprotoRepoStrongRef.Main
+  record: com.atproto.repo.strongRef.Main
   kind: 'post'
-  view: AppBskyFeedDefs.PostView
+  view: app.bsky.feed.defs.PostView
 }
 
 type ResolvedFeedRecord = {
   type: 'record'
-  record: ComAtprotoRepoStrongRef.Main
+  record: com.atproto.repo.strongRef.Main
   kind: 'feed'
-  view: AppBskyFeedDefs.GeneratorView
+  view: app.bsky.feed.defs.GeneratorView
 }
 
 type ResolvedListRecord = {
   type: 'record'
-  record: ComAtprotoRepoStrongRef.Main
+  record: com.atproto.repo.strongRef.Main
   kind: 'list'
-  view: AppBskyGraphDefs.ListView
+  view: app.bsky.graph.defs.ListView
 }
 
 type ResolvedStarterPackRecord = {
   type: 'record'
-  record: ComAtprotoRepoStrongRef.Main
+  record: com.atproto.repo.strongRef.Main
   kind: 'starter-pack'
-  view: AppBskyGraphDefs.StarterPackView
+  view: app.bsky.graph.defs.StarterPackView
 }
 
 type ResolvedChatInvite = {
@@ -95,9 +104,10 @@ export class EmbeddingDisabledError extends Error {
 }
 
 export async function resolveLink(
-  agent: SessionAgent,
+  clients: ResolveClients,
   uri: string,
 ): Promise<ResolvedLink> {
+  const {appview, chat: chatClient} = clients
   if (isShortLink(uri)) {
     uri = await resolveShortLink(uri)
   }
@@ -124,15 +134,15 @@ export async function resolveLink(
     const [_0, handleOrDid, _1, rkey] = uri.split('/').filter(Boolean)
     const did = await fetchDid(handleOrDid)
     const feed = makeRecordUri(did, 'app.bsky.feed.generator', rkey)
-    const res = await agent.app.bsky.feed.getFeedGenerator({feed})
+    const {view} = await appview.call(app.bsky.feed.getFeedGenerator, {feed})
     return {
       type: 'record',
       record: {
-        uri: res.data.view.uri,
-        cid: res.data.view.cid,
+        uri: view.uri,
+        cid: view.cid,
       },
       kind: 'feed',
-      view: res.data.view,
+      view,
     }
   }
   if (isBskyListUrl(uri)) {
@@ -140,28 +150,27 @@ export async function resolveLink(
     const [_0, handleOrDid, _1, rkey] = uri.split('/').filter(Boolean)
     const did = await fetchDid(handleOrDid)
     const list = makeRecordUri(did, 'app.bsky.graph.list', rkey)
-    const res = await agent.app.bsky.graph.getList({list})
+    const res = await appview.call(app.bsky.graph.getList, {list})
     return {
       type: 'record',
       record: {
-        uri: res.data.list.uri,
-        cid: res.data.list.cid,
+        uri: res.list.uri,
+        cid: res.list.cid,
       },
       kind: 'list',
-      view: res.data.list,
+      view: res.list,
     }
   }
   const chatInviteCode = getChatInviteCodeFromUrl(uri)
   if (chatInviteCode) {
-    const res = await agent.chat.bsky.group.getJoinLinkPreviews(
-      {codes: [chatInviteCode]},
-      {headers: DM_SERVICE_HEADERS},
-    )
+    const res = await chatClient.call(chat.bsky.group.getJoinLinkPreviews, {
+      codes: [chatInviteCode],
+    })
     return {
       type: 'chat-invite',
       uri,
       code: chatInviteCode,
-      view: res.data.joinLinkPreviews[0],
+      view: res.joinLinkPreviews[0],
     }
   }
   if (isBskyStartUrl(uri) || isBskyStarterPackUrl(uri)) {
@@ -173,34 +182,35 @@ export async function resolveLink(
     }
     const did = await fetchDid(parsed.name)
     const starterPack = createStarterPackUri({did, rkey: parsed.rkey})
-    const res = await agent.app.bsky.graph.getStarterPack({starterPack})
+    const res = await appview.call(app.bsky.graph.getStarterPack, {
+      starterPack: starterPack as AtUriString,
+    })
     return {
       type: 'record',
       record: {
-        uri: res.data.starterPack.uri,
-        cid: res.data.starterPack.cid,
+        uri: res.starterPack.uri,
+        cid: res.starterPack.cid,
       },
       kind: 'starter-pack',
-      view: res.data.starterPack,
+      view: res.starterPack,
     }
   }
-  return resolveExternal(agent, uri)
+  return resolveExternal(clients, uri)
 
   // Forked from useGetPost. TODO: move into RQ.
   async function getPost({uri}: {uri: string}) {
     const urip = new AtUri(uri)
     if (!urip.host.startsWith('did:')) {
-      const res = await agent.resolveHandle({
-        handle: urip.host,
+      const {did} = await appview.call(com.atproto.identity.resolveHandle, {
+        handle: urip.host as HandleString,
       })
-      // @ts-expect-error TODO new-sdk-migration
-      urip.host = res.data.did
+      urip.host = did
     }
-    const res = await agent.getPosts({
+    const res = await appview.call(app.bsky.feed.getPosts, {
       uris: [urip.toString()],
     })
-    if (res.success && res.data.posts[0]) {
-      return res.data.posts[0]
+    if (res.posts[0]) {
+      return res.posts[0]
     }
     throw new Error('getPost: post not found')
   }
@@ -209,17 +219,16 @@ export async function resolveLink(
   async function fetchDid(handleOrDid: string) {
     let identifier = handleOrDid
     if (!identifier.startsWith('did:')) {
-      const res = await agent.resolveHandle({handle: identifier})
-      identifier = res.data.did
+      const {did} = await appview.call(com.atproto.identity.resolveHandle, {
+        handle: identifier as HandleString,
+      })
+      identifier = did
     }
     return identifier
   }
 }
 
-export async function resolveGif(
-  agent: SessionAgent,
-  gif: Gif,
-): Promise<ResolvedExternalLink> {
+export async function resolveGif(gif: Gif): Promise<ResolvedExternalLink> {
   const gifUrl = gif.media_formats.gif.url
   const params = new URLSearchParams()
   params.set('hh', String(gif.media_formats.gif.dims[1]))
@@ -259,10 +268,15 @@ function getFileSlug(url: string | undefined): string | undefined {
 }
 
 async function resolveExternal(
-  agent: SessionAgent,
+  clients: ResolveClients,
   uri: string,
 ): Promise<ResolvedExternalLink> {
-  const result = await getLinkMeta(agent, uri)
+  /*
+   * getLinkMeta still takes the bridge agent (not yet migrated); it only reads
+   * a service URL from it that LINK_META_PROXY ignores. Keep threading the
+   * agent here until link-meta migrates.
+   */
+  const result = await getLinkMeta(clients.agent, uri)
   return {
     type: 'external',
     uri: result.url,