diff --git a/src/features/posts/components/post-feed.test.tsx b/src/features/posts/components/post-feed.test.tsx
new file mode 100644
index 0000000..a5b6a41
--- /dev/null
+++ b/src/features/posts/components/post-feed.test.tsx
@@ -0,0 +1,330 @@
+import { act, fireEvent, render, screen } from '@testing-library/react'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import type { Post } from '../types'
+import { PostLoadError } from '../use-post-feed'
+import { PostFeed } from './post-feed'
+
+const usePostFeed = vi.hoisted(() => vi.fn())
+
+vi.mock('../use-post-feed', async (importOriginal) => {
+  const original = await importOriginal<typeof import('../use-post-feed')>()
+  return { ...original, usePostFeed }
+})
+
+const observe = vi.fn()
+const unobserve = vi.fn()
+const disconnect = vi.fn()
+let observerCallback: IntersectionObserverCallback = () => {}
+let observerOptions: IntersectionObserverInit | undefined
+
+class FakeIntersectionObserver {
+  readonly root = null
+  readonly rootMargin: string
+  readonly thresholds: readonly number[] = []
+
+  constructor(
+    callback: IntersectionObserverCallback,
+    options?: IntersectionObserverInit,
+  ) {
+    observerCallback = callback
+    observerOptions = options
+    this.rootMargin = options?.rootMargin ?? '0px'
+  }
+
+  disconnect = disconnect
+  observe = observe
+  takeRecords = () => []
+  unobserve = unobserve
+}
+
+const post = (id: string): Post => ({
+  id,
+  text: `post-${id}`,
+  author: { username: `user-${id}`, name: `User ${id}` },
+})
+
+const queryResult = () => ({
+  data: undefined,
+  error: null,
+  fetchNextPage: vi.fn().mockResolvedValue(undefined),
+  hasNextPage: false,
+  isError: false,
+  isFetchNextPageError: false,
+  isFetchingNextPage: false,
+  isPending: false,
+  refetch: vi.fn().mockResolvedValue(undefined),
+})
+
+describe('PostFeed', () => {
+  beforeEach(() => {
+    usePostFeed.mockReset()
+    usePostFeed.mockReturnValue(queryResult() as never)
+    observe.mockReset()
+    unobserve.mockReset()
+    disconnect.mockReset()
+    observerCallback = () => {}
+    observerOptions = undefined
+    vi.stubGlobal(
+      'IntersectionObserver',
+      FakeIntersectionObserver as unknown as typeof IntersectionObserver,
+    )
+  })
+
+  afterEach(() => vi.unstubAllGlobals())
+
+  it('renders no feed state before a deliberate request', () => {
+    render(<PostFeed request={undefined} />)
+
+    expect(usePostFeed).toHaveBeenCalledWith(undefined)
+    expect(screen.queryByRole('article')).not.toBeInTheDocument()
+    expect(screen.queryByRole('status')).not.toBeInTheDocument()
+    expect(screen.queryByRole('alert')).not.toBeInTheDocument()
+  })
+
+  it('announces the initial loading state', () => {
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      isPending: true,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+
+    expect(screen.getByRole('status')).toHaveTextContent(
+      '投稿を取得しています…',
+    )
+  })
+
+  it('renders a quiet empty state', () => {
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: { pages: [{ tweets: [] }], pageParams: [undefined] },
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+
+    expect(screen.getByText('条件に一致する投稿はありません。')).toBeVisible()
+    expect(screen.queryByRole('alert')).not.toBeInTheDocument()
+  })
+
+  it('continues from an empty page when a next cursor exists', () => {
+    const fetchNextPage = vi.fn(() => new Promise<never>(() => undefined))
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [{ tweets: [], nextCursor: 'next' }],
+        pageParams: [undefined],
+      },
+      fetchNextPage,
+      hasNextPage: true,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+    act(() => {
+      observerCallback(
+        [{ isIntersecting: true } as IntersectionObserverEntry],
+        {} as IntersectionObserver,
+      )
+    })
+
+    expect(
+      screen.queryByText('条件に一致する投稿はありません。'),
+    ).not.toBeInTheDocument()
+    expect(fetchNextPage).toHaveBeenCalledOnce()
+  })
+
+  it('deduplicates every page while preserving a quiet end state', () => {
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [
+          { tweets: [post('1'), post('2')], nextCursor: 'next' },
+          { tweets: [post('2'), post('3')] },
+        ],
+        pageParams: [undefined, 'next'],
+      },
+    } as never)
+
+    const { container } = render(
+      <PostFeed request={{ kind: 'user', target: 'yuta' }} />,
+    )
+
+    expect(screen.getAllByRole('article')).toHaveLength(3)
+    expect(container.querySelector('[aria-live="polite"]')).toBeInTheDocument()
+    expect(screen.getByText('これ以上の投稿はありません。')).toBeVisible()
+    expect(screen.queryByRole('alert')).not.toBeInTheDocument()
+  })
+
+  it('retries an initial retryable error with refetch', () => {
+    const refetch = vi.fn().mockResolvedValue(undefined)
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      error: new PostLoadError({
+        code: 'upstream',
+        message: '最初の取得に失敗しました。',
+        retryable: true,
+      }),
+      isError: true,
+      refetch,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+    fireEvent.click(screen.getByRole('button', { name: '再試行' }))
+
+    expect(screen.getByRole('alert')).toHaveTextContent(
+      '最初の取得に失敗しました。',
+    )
+    expect(refetch).toHaveBeenCalledOnce()
+  })
+
+  it('does not offer retry for a non-retryable initial error', () => {
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      error: new PostLoadError({
+        code: 'invalid-input',
+        message: '入力を確認してください。',
+        retryable: false,
+      }),
+      isError: true,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'bad' }} />)
+
+    expect(screen.getByRole('alert')).toHaveTextContent(
+      '入力を確認してください。',
+    )
+    expect(screen.queryByRole('button')).not.toBeInTheDocument()
+  })
+
+  it('keeps loaded posts while retrying a later page', () => {
+    const fetchNextPage = vi.fn().mockResolvedValue(undefined)
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [{ tweets: [post('kept')], nextCursor: 'next' }],
+        pageParams: [undefined],
+      },
+      error: new PostLoadError({
+        code: 'timeout',
+        message: '取得がタイムアウトしました。',
+        retryable: true,
+      }),
+      fetchNextPage,
+      hasNextPage: true,
+      isError: true,
+      isFetchNextPageError: true,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+    fireEvent.click(screen.getByRole('button', { name: '再試行' }))
+
+    expect(screen.getByText('post-kept')).toBeVisible()
+    expect(screen.getByRole('alert')).toHaveTextContent(
+      '続きの投稿を取得できませんでした。',
+    )
+    expect(observe).not.toHaveBeenCalled()
+    expect(fetchNextPage).toHaveBeenCalledOnce()
+  })
+
+  it('retries a later page after an empty page with fetchNextPage', () => {
+    const fetchNextPage = vi.fn().mockResolvedValue(undefined)
+    const refetch = vi.fn().mockResolvedValue(undefined)
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [{ tweets: [], nextCursor: 'next' }],
+        pageParams: [undefined],
+      },
+      error: new PostLoadError({
+        code: 'timeout',
+        message: '取得がタイムアウトしました。',
+        retryable: true,
+      }),
+      fetchNextPage,
+      hasNextPage: true,
+      isError: true,
+      isFetchNextPageError: true,
+      refetch,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+    fireEvent.click(screen.getByRole('button', { name: '再試行' }))
+
+    expect(screen.getByRole('alert')).toHaveTextContent(
+      '続きの投稿を取得できませんでした。',
+    )
+    expect(fetchNextPage).toHaveBeenCalledOnce()
+    expect(refetch).not.toHaveBeenCalled()
+  })
+
+  it('announces next-page loading', () => {
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [{ tweets: [post('1')], nextCursor: 'next' }],
+        pageParams: [undefined],
+      },
+      hasNextPage: true,
+      isFetchingNextPage: true,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+
+    expect(screen.getByRole('status')).toHaveTextContent(
+      '次の投稿を取得しています…',
+    )
+  })
+
+  it('does not auto-fetch while a next page is already loading', () => {
+    const fetchNextPage = vi.fn().mockResolvedValue(undefined)
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [{ tweets: [post('1')], nextCursor: 'next' }],
+        pageParams: [undefined],
+      },
+      fetchNextPage,
+      hasNextPage: true,
+      isFetchingNextPage: true,
+    } as never)
+
+    render(<PostFeed request={{ kind: 'user', target: 'yuta' }} />)
+    act(() => {
+      observerCallback(
+        [{ isIntersecting: true } as IntersectionObserverEntry],
+        {} as IntersectionObserver,
+      )
+    })
+
+    expect(observe).not.toHaveBeenCalled()
+    expect(fetchNextPage).not.toHaveBeenCalled()
+  })
+
+  it('auto-fetches once near the sentinel and disconnects on cleanup', () => {
+    const fetchNextPage = vi.fn(() => new Promise<never>(() => undefined))
+    usePostFeed.mockReturnValue({
+      ...queryResult(),
+      data: {
+        pages: [{ tweets: [post('1')], nextCursor: 'next' }],
+        pageParams: [undefined],
+      },
+      fetchNextPage,
+      hasNextPage: true,
+    } as never)
+
+    const { unmount } = render(
+      <PostFeed request={{ kind: 'user', target: 'yuta' }} />,
+    )
+    act(() => {
+      const entries = [{ isIntersecting: true } as IntersectionObserverEntry]
+      observerCallback(entries, {} as IntersectionObserver)
+      observerCallback(entries, {} as IntersectionObserver)
+    })
+
+    expect(observerOptions).toEqual({ rootMargin: '600px 0px' })
+    expect(observe).toHaveBeenCalledOnce()
+    expect(fetchNextPage).toHaveBeenCalledOnce()
+
+    unmount()
+    expect(disconnect).toHaveBeenCalledOnce()
+  })
+})
diff --git a/src/features/posts/components/post-feed.tsx b/src/features/posts/components/post-feed.tsx
new file mode 100644
index 0000000..0a8f906
--- /dev/null
+++ b/src/features/posts/components/post-feed.tsx
@@ -0,0 +1,93 @@
+import { useEffect, useRef } from 'react'
+import { flattenPostPages } from '../page'
+import { type FeedRequest, PostLoadError, usePostFeed } from '../use-post-feed'
+import { PostCard } from './post-card'
+
+export function PostFeed({ request }: { request: FeedRequest | undefined }) {
+  const query = usePostFeed(request)
+  const sentinel = useRef<HTMLDivElement>(null)
+  const fetchingNextPage = useRef(query.isFetchingNextPage)
+  const posts = query.data ? flattenPostPages(query.data.pages) : []
+  fetchingNextPage.current = query.isFetchingNextPage
+
+  useEffect(() => {
+    if (
+      !sentinel.current ||
+      !query.hasNextPage ||
+      query.isFetchNextPageError ||
+      query.isFetchingNextPage
+    ) {
+      return
+    }
+
+    const observer = new IntersectionObserver(
+      ([entry]) => {
+        if (entry?.isIntersecting && !fetchingNextPage.current) {
+          fetchingNextPage.current = true
+          void query.fetchNextPage()
+        }
+      },
+      { rootMargin: '600px 0px' },
+    )
+    observer.observe(sentinel.current)
+    return () => observer.disconnect()
+  }, [
+    query.fetchNextPage,
+    query.hasNextPage,
+    query.isFetchNextPageError,
+    query.isFetchingNextPage,
+  ])
+
+  if (!request) return null
+  if (query.isPending) {
+    return (
+      <p className="state" role="status">
+        投稿を取得しています…
+      </p>
+    )
+  }
+  if (query.isError && !query.isFetchNextPageError && posts.length === 0) {
+    const error =
+      query.error instanceof PostLoadError
+        ? query.error.detail
+        : { message: '投稿を取得できませんでした。', retryable: true }
+    return (
+      <div className="state" role="alert">
+        <p>{error.message}</p>
+        {error.retryable ? (
+          <button onClick={() => void query.refetch()} type="button">
+            再試行
+          </button>
+        ) : null}
+      </div>
+    )
+  }
+  if (posts.length === 0 && !query.hasNextPage) {
+    return <p className="state">条件に一致する投稿はありません。</p>
+  }
+
+  return (
+    <section aria-live="polite" className="feed">
+      {posts.map((post) => (
+        <PostCard key={post.id} post={post} />
+      ))}
+      <div aria-hidden="true" ref={sentinel} />
+      {query.isFetchingNextPage ? (
+        <div className="loading-rail" role="status">
+          次の投稿を取得しています…
+        </div>
+      ) : null}
+      {query.isFetchNextPageError ? (
+        <div className="state" role="alert">
+          <p>続きの投稿を取得できませんでした。</p>
+          <button onClick={() => void query.fetchNextPage()} type="button">
+            再試行
+          </button>
+        </div>
+      ) : null}
+      {!query.hasNextPage ? (
+        <p className="state">これ以上の投稿はありません。</p>
+      ) : null}
+    </section>
+  )
+}
diff --git a/src/features/posts/use-post-feed.test.ts b/src/features/posts/use-post-feed.test.ts
new file mode 100644
index 0000000..0a44e55
--- /dev/null
+++ b/src/features/posts/use-post-feed.test.ts
@@ -0,0 +1,165 @@
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { renderHook } from '@testing-library/react'
+import { createElement, type ReactNode } from 'react'
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import {
+  createPostFeedOptions,
+  PostLoadError,
+  usePostFeed,
+} from './use-post-feed'
+
+const useServerFn = vi.hoisted(() => vi.fn())
+
+vi.mock('@tanstack/react-start', async (importOriginal) => {
+  const original =
+    await importOriginal<typeof import('@tanstack/react-start')>()
+  return { ...original, useServerFn }
+})
+
+describe('createPostFeedOptions', () => {
+  it('forwards one user cursor in the server function payload', async () => {
+    const loadUser = vi.fn().mockResolvedValue({
+      ok: true,
+      page: { tweets: [], nextCursor: 'next' },
+    })
+    const options = createPostFeedOptions(
+      { kind: 'user', target: '@yuta' },
+      { loadUser, search: vi.fn() },
+    )
+
+    await options.queryFn({ pageParam: 'cursor' } as never)
+
+    expect(loadUser).toHaveBeenCalledOnce()
+    expect(loadUser).toHaveBeenCalledWith({
+      data: { target: '@yuta', cursor: 'cursor' },
+    })
+  })
+
+  it('does not retry requests automatically', () => {
+    const options = createPostFeedOptions(
+      { kind: 'user', target: 'yuta' },
+      { loadUser: vi.fn(), search: vi.fn() },
+    )
+
+    expect(options.retry).toBe(false)
+  })
+
+  it('does not refetch automatically when the window regains focus', () => {
+    const options = createPostFeedOptions(
+      { kind: 'user', target: 'yuta' },
+      { loadUser: vi.fn(), search: vi.fn() },
+    )
+
+    expect(options.refetchOnWindowFocus).toBe(false)
+  })
+
+  it('does not refetch automatically when the connection returns', () => {
+    const options = createPostFeedOptions(
+      { kind: 'user', target: 'yuta' },
+      { loadUser: vi.fn(), search: vi.fn() },
+    )
+
+    expect(options.refetchOnReconnect).toBe(false)
+  })
+
+  it('takes the next cursor only from the resolved page', () => {
+    const options = createPostFeedOptions(
+      { kind: 'user', target: 'yuta' },
+      { loadUser: vi.fn(), search: vi.fn() },
+    )
+
+    expect(
+      options.getNextPageParam({ tweets: [], nextCursor: 'page-next' }),
+    ).toBe('page-next')
+    expect(options.getNextPageParam({ tweets: [] })).toBeUndefined()
+  })
+
+  it('includes every search control in the query key', () => {
+    const options = createPostFeedOptions(
+      {
+        kind: 'search',
+        query: 'AI',
+        product: 'Top',
+        following: true,
+      },
+      { loadUser: vi.fn(), search: vi.fn() },
+    )
+
+    expect(options.queryKey).toEqual([
+      'posts',
+      { kind: 'search', query: 'AI', product: 'Top', following: true },
+    ])
+  })
+
+  it('forwards every search control with the current cursor', async () => {
+    const search = vi.fn().mockResolvedValue({
+      ok: true,
+      page: { tweets: [], nextCursor: 'search-next' },
+    })
+    const options = createPostFeedOptions(
+      {
+        kind: 'search',
+        query: 'AI lang:ja',
+        product: 'Top',
+        following: true,
+      },
+      { loadUser: vi.fn(), search },
+    )
+
+    await options.queryFn({ pageParam: 'search-cursor' } as never)
+
+    expect(search).toHaveBeenCalledOnce()
+    expect(search).toHaveBeenCalledWith({
+      data: {
+        query: 'AI lang:ja',
+        product: 'Top',
+        following: true,
+        cursor: 'search-cursor',
+      },
+    })
+  })
+
+  it('preserves a typed load failure for the feed', async () => {
+    const error = {
+      code: 'upstream' as const,
+      message: '取得できませんでした。',
+      retryable: true,
+    }
+    const options = createPostFeedOptions(
+      { kind: 'user', target: 'yuta' },
+      {
+        loadUser: vi.fn().mockResolvedValue({ ok: false, error }),
+        search: vi.fn(),
+      },
+    )
+
+    const request = options.queryFn({ pageParam: undefined } as never)
+
+    await expect(request).rejects.toBeInstanceOf(PostLoadError)
+    await expect(request).rejects.toMatchObject({
+      detail: error,
+      message: error.message,
+    })
+  })
+})
+
+describe('usePostFeed', () => {
+  beforeEach(() => {
+    useServerFn.mockReset()
+  })
+
+  it('keeps an absent request idle without calling a loader', () => {
+    const loader = vi.fn()
+    useServerFn.mockReturnValue(loader)
+    const queryClient = new QueryClient({
+      defaultOptions: { queries: { retry: false } },
+    })
+    const wrapper = ({ children }: { children: ReactNode }) =>
+      createElement(QueryClientProvider, { client: queryClient }, children)
+
+    const { result } = renderHook(() => usePostFeed(undefined), { wrapper })
+
+    expect(result.current.fetchStatus).toBe('idle')
+    expect(loader).not.toHaveBeenCalled()
+  })
+})
diff --git a/src/features/posts/use-post-feed.ts b/src/features/posts/use-post-feed.ts
new file mode 100644
index 0000000..a369b70
--- /dev/null
+++ b/src/features/posts/use-post-feed.ts
@@ -0,0 +1,78 @@
+import { useInfiniteQuery } from '@tanstack/react-query'
+import { useServerFn } from '@tanstack/react-start'
+import type { SearchProduct } from '@yuta/bird'
+import { loadUserPosts, searchPosts } from './server-functions'
+import type {
+  LoadError,
+  LoadResult,
+  PostPage,
+  SearchPageInput,
+  UserPageInput,
+} from './types'
+
+export type FeedRequest =
+  | { kind: 'user'; target: string }
+  | {
+      kind: 'search'
+      query: string
+      product: SearchProduct
+      following: boolean
+    }
+
+type Loaders = {
+  loadUser: (options: { data: UserPageInput }) => Promise<LoadResult>
+  search: (options: { data: SearchPageInput }) => Promise<LoadResult>
+}
+
+export class PostLoadError extends Error {
+  constructor(readonly detail: LoadError) {
+    super(detail.message)
+  }
+}
+
+function unwrap(result: LoadResult): PostPage {
+  if (!result.ok) throw new PostLoadError(result.error)
+  return result.page
+}
+
+export function createPostFeedOptions(request: FeedRequest, loaders: Loaders) {
+  return {
+    queryKey: ['posts', request] as const,
+    initialPageParam: undefined as string | undefined,
+    retry: false as const,
+    refetchOnWindowFocus: false as const,
+    refetchOnReconnect: false as const,
+    queryFn: async ({ pageParam }: { pageParam: string | undefined }) =>
+      request.kind === 'user'
+        ? unwrap(
+            await loaders.loadUser({
+              data: { target: request.target, cursor: pageParam },
+            }),
+          )
+        : unwrap(
+            await loaders.search({
+              data: {
+                query: request.query,
+                product: request.product,
+                following: request.following,
+                cursor: pageParam,
+              },
+            }),
+          ),
+    getNextPageParam: (page: PostPage) => page.nextCursor,
+  }
+}
+
+export function usePostFeed(request: FeedRequest | undefined) {
+  const loadUser = useServerFn(loadUserPosts)
+  const search = useServerFn(searchPosts)
+  const disabled = {
+    kind: 'user',
+    target: '',
+  } satisfies FeedRequest
+
+  return useInfiniteQuery({
+    ...createPostFeedOptions(request ?? disabled, { loadUser, search }),
+    enabled: request !== undefined,
+  })
+}
diff --git a/src/routes/-feed-wiring.test.tsx b/src/routes/-feed-wiring.test.tsx
new file mode 100644
index 0000000..a622d51
--- /dev/null
+++ b/src/routes/-feed-wiring.test.tsx
@@ -0,0 +1,91 @@
+import { QueryClient } from '@tanstack/react-query'
+import {
+  createMemoryHistory,
+  createRouter,
+  RouterProvider,
+} from '@tanstack/react-router'
+import { render, screen, waitFor } from '@testing-library/react'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import { routeTree } from '../routeTree.gen'
+
+const usePostFeed = vi.hoisted(() => vi.fn())
+
+vi.mock('../features/posts/use-post-feed', async (importOriginal) => {
+  const original =
+    await importOriginal<typeof import('../features/posts/use-post-feed')>()
+  return { ...original, usePostFeed }
+})
+
+vi.mock('./__root', async () => {
+  const { createRootRouteWithContext, Outlet } = await import(
+    '@tanstack/react-router'
+  )
+  return {
+    Route: createRootRouteWithContext<{ queryClient: QueryClient }>()({
+      component: Outlet,
+    }),
+  }
+})
+
+async function renderRoute(path: string) {
+  const router = createRouter({
+    routeTree,
+    history: createMemoryHistory({ initialEntries: [path] }),
+    context: { queryClient: new QueryClient() },
+  })
+  await router.load()
+  render(<RouterProvider router={router} />)
+}
+
+describe('post feed route wiring', () => {
+  beforeEach(() => {
+    vi.stubGlobal('scrollTo', vi.fn())
+    usePostFeed.mockReset()
+    usePostFeed.mockReturnValue({
+      data: undefined,
+      error: null,
+      fetchNextPage: vi.fn(),
+      hasNextPage: false,
+      isError: false,
+      isFetchNextPageError: false,
+      isFetchingNextPage: false,
+      isPending: false,
+      refetch: vi.fn(),
+    } as never)
+  })
+
+  afterEach(() => vi.unstubAllGlobals())
+
+  it('keeps an empty user URL disabled', async () => {
+    await renderRoute('/user?target=')
+
+    expect(
+      await screen.findByRole('heading', { name: '誰の投稿を見ますか？' }),
+    ).toBeVisible()
+    expect(usePostFeed).toHaveBeenCalledWith(undefined)
+  })
+
+  it('turns a manually entered user URL into a deliberate request', async () => {
+    await renderRoute('/user?target=yuta')
+
+    await waitFor(() =>
+      expect(usePostFeed).toHaveBeenCalledWith({
+        kind: 'user',
+        target: 'yuta',
+      }),
+    )
+  })
+
+  it('forwards every manually entered search control', async () => {
+    await renderRoute('/search?q=AI%20lang%3Aja&product=Top&following=true')
+
+    await waitFor(() =>
+      expect(usePostFeed).toHaveBeenCalledWith({
+        kind: 'search',
+        query: 'AI lang:ja',
+        product: 'Top',
+        following: true,
+      }),
+    )
+  })
+})
diff --git a/src/routes/search.tsx b/src/routes/search.tsx
index 861f363..ba276e6 100644
--- a/src/routes/search.tsx
+++ b/src/routes/search.tsx
@@ -1,5 +1,6 @@
 import { createFileRoute } from '@tanstack/react-router'
 import { AppShell } from '#/components/app-shell'
+import { PostFeed } from '#/features/posts/components/post-feed'
 import { SearchForm } from '#/features/posts/components/search-form'
 import { postSearchRouteSchema } from '#/features/posts/inputs'
 
@@ -22,6 +23,18 @@ function SearchRoute() {
         key={`${values.q}:${values.product}:${values.following}`}
         onSubmit={(search) => navigate({ search })}
       />
+      <PostFeed
+        request={
+          values.q
+            ? {
+                kind: 'search',
+                query: values.q,
+                product: values.product,
+                following: values.following,
+              }
+            : undefined
+        }
+      />
     </AppShell>
   )
 }
diff --git a/src/routes/user.tsx b/src/routes/user.tsx
index 3cf08f9..d3656c2 100644
--- a/src/routes/user.tsx
+++ b/src/routes/user.tsx
@@ -1,5 +1,6 @@
 import { createFileRoute } from '@tanstack/react-router'
 import { AppShell } from '#/components/app-shell'
+import { PostFeed } from '#/features/posts/components/post-feed'
 import { UserForm } from '#/features/posts/components/user-form'
 import { userRouteSearchSchema } from '#/features/posts/inputs'
 
@@ -20,6 +21,7 @@ function UserRoute() {
         key={target}
         onSubmit={(nextTarget) => navigate({ search: { target: nextTarget } })}
       />
+      <PostFeed request={target ? { kind: 'user', target } : undefined} />
     </AppShell>
   )
 }