diff --git a/tests/sanity/tests/card/copy-as-markdown-table.spec.ts b/tests/sanity/tests/card/copy-as-markdown-table.spec.ts
new file mode 100644
index 0000000000..8e4691464c
--- /dev/null
+++ b/tests/sanity/tests/card/copy-as-markdown-table.spec.ts
@@ -0,0 +1,99 @@
+import { test, expect } from '@playwright/test'
+import { generateId, PlatformSetting, PlatformURI } from '../utils'
+import { CardsPage } from '../model/card/cards-page'
+import { CardContentPage } from '../model/card/card-content-page'
+
+test.use({
+  storageState: PlatformSetting
+})
+
+test.describe('Copy as Markdown Table tests', () => {
+  let cardsPage: CardsPage
+  let cardContentPage: CardContentPage
+
+  test.beforeEach(async ({ page }) => {
+    cardsPage = new CardsPage(page)
+    cardContentPage = new CardContentPage(page)
+
+    await page.goto(`${PlatformURI}/workbench/sanity-ws`)
+    await cardsPage.clickCardApp()
+    await cardsPage.clickAllCards()
+  })
+
+  test('Copy as Markdown Table pastes as a real table, not raw markdown text', async ({ page, context }) => {
+    // playwright.config.ts already grants these globally for the "Platform" project, but the
+    // grant is re-asserted here since this spec is the first to rely on a full clipboard
+    // write+read+paste round trip rather than just navigator.clipboard.readText().
+    await context.grantPermissions(['clipboard-read', 'clipboard-write'])
+
+    const spaceName = `Markdown Table Space-${generateId()}`
+    const sourceCardTitle = `Copy Table Card-${generateId()}`
+    const targetCardTitle = `Paste Table Card-${generateId()}`
+
+    await test.step('Create a card space and two cards', async () => {
+      // A fresh sanity workspace does not seed any card.class.CardSpace, and the "Create Card"
+      // dialog needs a valid space bound before its "Create" button is enabled, so create one
+      // up front and reuse it for both cards.
+      await cardsPage.createCardSpace(spaceName)
+
+      await cardsPage.createCard(sourceCardTitle)
+      await cardContentPage.checkCardTitle(sourceCardTitle)
+
+      await cardsPage.clickAllCards()
+      await cardsPage.createCard(targetCardTitle)
+      await cardContentPage.checkCardTitle(targetCardTitle)
+
+      await cardsPage.clickAllCards()
+    })
+
+    await test.step('Copy the source card as a Markdown table', async () => {
+      await cardsPage.doActionOnCard(sourceCardTitle, 'Copy as Markdown Table')
+
+      // Sanity check of the *copy* side, independent of the paste side: copyMarkdown() in
+      // plugins/view-resources/src/actionImpl.ts only ever writes a "text/plain" clipboard
+      // entry (browsers reject "text/markdown"/custom MIME types in ClipboardItem), containing
+      // the markdown table plus a trailing metadata HTML comment. If the copy action stopped
+      // producing a real markdown table, the paste-side assertions below would be meaningless,
+      // so this is checked first and on its own.
+      const clipboardText = await page.evaluate(async () => await navigator.clipboard.readText())
+      expect(clipboardText).toContain(sourceCardTitle)
+      expect(clipboardText).toContain('|')
+      expect(clipboardText).toContain('---')
+    })
+
+    await test.step('Paste the copied table into another card and verify it renders as a real table', async () => {
+      await cardsPage.clickAllCards()
+      await cardsPage.openCard(targetCardTitle)
+      await cardContentPage.checkCardTitle(targetCardTitle)
+
+      await cardContentPage.focusContentEditor()
+      await cardContentPage.pasteFromClipboard()
+
+      // REGRESSION GUARD - this is the entire point of the test.
+      //
+      // plugins/text-editor-resources/src/components/extension/shortcuts/smartPaste.ts
+      // intercepts the paste, converts the clipboard's markdown to a ProseMirror document via
+      // markdownToMarkup(), and only replaces the browser's default paste with that real node
+      // when shouldUseMarkdownOutput() finds an "important" node type - "table" is one of the
+      // importantMarkupNodeTypes. If that detection, or the markdown -> markup conversion of
+      // the table itself, ever regresses, handlePaste() returns false and the browser falls
+      // back to inserting the clipboard's raw "text/plain" payload as an ordinary paragraph:
+      // the pipe-delimited "| Header | ... |" / "| --- | ... |" markdown lines would show up
+      // as literal, unrendered text instead of an actual <table>.
+      //
+      // Positive assertion: a real <table class="proseTable"> appeared, and one of its cells
+      // contains the source card's title (proving the pasted content is the table we copied,
+      // not some unrelated fallback content).
+      await expect(cardContentPage.proseTable()).toBeVisible({ timeout: 15000 })
+      await expect(cardContentPage.proseTable().locator('td', { hasText: sourceCardTitle }).first()).toBeVisible()
+
+      // Negative assertion: this is what the regression looks like in the DOM - the table
+      // markdown (header/separator row, e.g. "| --- | --- |") and the metadata HTML comment
+      // rendered as plain, literal text content inside the editor instead of being parsed away
+      // into real table/comment-free nodes.
+      const editorText = (await cardContentPage.contentEditor().textContent()) ?? ''
+      expect(editorText).not.toMatch(/\|\s*-{3,}\s*\|/)
+      expect(editorText).not.toContain('<!--')
+    })
+  })
+})
diff --git a/tests/sanity/tests/model/card/card-content-page.ts b/tests/sanity/tests/model/card/card-content-page.ts
new file mode 100644
index 0000000000..6a2a61bf6d
--- /dev/null
+++ b/tests/sanity/tests/model/card/card-content-page.ts
@@ -0,0 +1,57 @@
+import { type Locator, type Page, expect } from '@playwright/test'
+import { CommonPage } from '../common-page'
+
+export class CardContentPage extends CommonPage {
+  readonly page: Page
+
+  constructor (page: Page) {
+    super(page)
+    this.page = page
+  }
+
+  // The card title is edited via an EditBox rendered in slot="title" of EditCardNew.svelte,
+  // which Panel places inside the header element with class "hulyHeader-titleGroup" (see
+  // EditCardNew.svelte's afterUpdate(), which queries `element.querySelector('.hulyHeader-
+  // titleGroup')` for that same element). Unlike Documents (whose title lives inside
+  // "div[class*='main-content']"), Card's ".main-content" div only wraps the card body/content
+  // editor (EditCardNewContent), not the title.
+  readonly inputCardTitle = (): Locator => this.page.locator('.hulyHeader-titleGroup div.title input')
+
+  // The card's main "content" editor (Description.svelte -> ContentEditor.svelte ->
+  // CollaboratorEditor -> CollaborativeTextEditor), scoped to two things:
+  //  - ".main-content" (EditCardNew.svelte), the card body wrapper - both the content editor
+  //    and the comments editor (MessageInput, rendered in a sibling ".message-input" div by
+  //    EditCardNewContent.svelte) live inside it, so this alone would not disambiguate them.
+  //  - ".textInput" (CollaborativeTextEditor.svelte), which is only rendered by the
+  //    Collaborator/CollaborativeTextEditor stack used for the card's content attribute.
+  //    MessageInput instead renders communication-resources/TextInput.svelte, which uses the
+  //    plain text-editor-resources TextEditor.svelte - that component does NOT render a
+  //    ".textInput" wrapper (only a bare ".select-text" div), so this selector cannot
+  //    accidentally match the comments box.
+  readonly contentEditor = (): Locator => this.page.locator('.main-content .textInput div.tiptap')
+
+  // All rich-text editors in this app share the same Tiptap kit (text-editor-resources/src/
+  // kits/editor-kit.ts), which renders <table> nodes with HTMLAttributes class "proseTable" -
+  // this mirrors the existing convention in
+  // tests/sanity/tests/model/documents/document-content-page.ts (proseTableCell), so it is not
+  // Card-specific and stays valid even if Card's own DOM nesting changes.
+  readonly proseTable = (): Locator => this.contentEditor().locator('table.proseTable')
+
+  async checkCardTitle (title: string): Promise<void> {
+    await expect(this.inputCardTitle()).toHaveValue(title)
+  }
+
+  async focusContentEditor (): Promise<void> {
+    await this.contentEditor().click()
+  }
+
+  // Pastes whatever is currently on the (fake, per-context) clipboard. Chromium's async
+  // Clipboard API shares its per-context clipboard with native paste events, and
+  // tests/sanity/tests/playwright.config.ts already grants clipboard-read/clipboard-write
+  // permissions globally, so a real keyboard paste exercises the same handlePaste() code path
+  // (plugins/text-editor-resources/src/components/extension/shortcuts/smartPaste.ts) that a
+  // user's Ctrl/Cmd+V would.
+  async pasteFromClipboard (): Promise<void> {
+    await this.page.keyboard.press('ControlOrMeta+KeyV')
+  }
+}
diff --git a/tests/sanity/tests/model/card/cards-page.ts b/tests/sanity/tests/model/card/cards-page.ts
new file mode 100644
index 0000000000..ca0187162c
--- /dev/null
+++ b/tests/sanity/tests/model/card/cards-page.ts
@@ -0,0 +1,111 @@
+import { type Locator, type Page, expect } from '@playwright/test'
+import { CommonPage } from '../common-page'
+
+export class CardsPage extends CommonPage {
+  readonly page: Page
+
+  constructor (page: Page) {
+    super(page)
+    this.page = page
+  }
+
+  readonly buttonCardApp = (): Locator => this.page.locator('button[id$="card:string:CardApplication"]')
+
+  // The "All Cards" special navigator item (models/card/src/index.ts, navigatorModel.specials,
+  // id: 'all'), rendered by the generic workbench Navigator.svelte the same way as every other
+  // app's specials (e.g. tracker's "My issues"), so a plain text lookup inside the navigator
+  // panel matches the existing convention (see IssuesPage.myIssuesButton).
+  readonly linkAllCards = (): Locator => this.page.locator('.antiPanel-navigator').locator('text="All Cards"')
+
+  // The "+" button in the Card app's navigator header (card.component.CardHeaderButton, wired
+  // via workbench.class.Application.navHeaderActions in models/card/src/index.ts). It has no
+  // dataId/id of its own, but it is the only <button> rendered inside the current app's
+  // ".hulyNavPanel-header" (see NavHeader.svelte), matched here through the existing
+  // CommonPage.appHeader() locator. Clicking it opens a Menu popup with "Create Card" and
+  // "Create Space" actions - there is no dedicated "New" button on the "All Cards" table view
+  // itself (SpecialView.svelte only renders one when createLabel/createComponent/createButton
+  // are set, which the "all" special does not do), so this is the only reliable entry point.
+  readonly buttonNavHeaderAdd = (): Locator => this.appHeader().locator('button')
+
+  // "Create Space" popup (CreateSpace.svelte, in components/navigator). It reuses the same
+  // "teamspace-title" id as the Documents teamspace-creation form.
+  readonly inputCardSpaceTitle = (): Locator => this.page.locator('div[id="teamspace-title"] input')
+
+  // "Create Card" popup title field. Depending on whether the target MasterTag has a
+  // registered card.mixin.CreateCardExtension, either CreateCardPopupSimple (wrapped in
+  // ".antiCard") or CreateCardPopupFull (wrapped in ".hulyModal-container") is shown; both
+  // render the same ModernEditbox with label view.string.Title ("Title") as a placeholder.
+  readonly inputCardTitle = (): Locator =>
+    this.page.locator('.antiCard input[placeholder="Title"], .hulyModal-container input[placeholder="Title"]')
+
+  // Submit button for both the "Create Space" and "Create Card" popups (Card.svelte /
+  // Modal.svelte both render a primary button whose visible label is the translated
+  // presentation.string.Create, "Create").
+  readonly buttonCreateSubmit = (): Locator => this.page.getByRole('button', { name: 'Create', exact: true })
+
+  // Row in the generic Table viewlet (view.viewlet.Table) used by the "All Cards" special
+  // view. Mirrors the existing convention in AllProjectsPage (tracker) - Table.svelte binds
+  // on:contextmenu directly on each "tr.antiTable-body__row".
+  readonly cardRow = (title: string): Locator =>
+    this.page.locator('.antiTable-body__row', { has: this.page.locator(`td:has-text("${title}")`) })
+
+  // The row's bulk-select checkbox (CheckBox.svelte renders "input.chBox"), inside
+  // ".antiTable-cells__checkCell". It is only "visibility: visible" on row :hover (see
+  // packages/theme/styles/components.scss), so callers must hover the row first.
+  readonly cardRowCheckbox = (title: string): Locator => this.cardRow(title).locator('input.chBox')
+
+  async clickCardApp (): Promise<void> {
+    await this.buttonCardApp().click()
+  }
+
+  async clickAllCards (): Promise<void> {
+    await this.linkAllCards().click()
+  }
+
+  // Creates a card.class.CardSpace. A freshly seeded sanity workspace does not provision any
+  // CardSpace, and the "Create Card" dialog's SpaceSelector needs a valid space bound before
+  // its "Create" button becomes enabled (SpaceSelect auto-selects the first matching space
+  // only once one exists), so tests must create one before creating any card.
+  async createCardSpace (name: string): Promise<void> {
+    await this.buttonNavHeaderAdd().click()
+    await this.selectFromDropdown(this.page, 'Create space')
+    await expect(this.inputCardSpaceTitle()).toBeVisible()
+    await this.inputCardSpaceTitle().fill(name)
+    await this.buttonCreateSubmit().click()
+    await expect(this.inputCardSpaceTitle()).not.toBeVisible()
+  }
+
+  // Creates a card via the navigator header "+" -> "Create Card" flow and waits for the
+  // resulting popup to close (CreateCardPopup dispatches 'close' with the new card id, which
+  // CardHeaderButton.svelte's handleCreateCard callback uses to navigate straight into the new
+  // card's edit panel).
+  async createCard (title: string): Promise<void> {
+    await this.buttonNavHeaderAdd().click()
+    await this.selectFromDropdown(this.page, 'Create Card')
+    await expect(this.inputCardTitle()).toBeVisible()
+    await this.inputCardTitle().fill(title)
+    await expect(this.buttonCreateSubmit()).toBeEnabled({ timeout: 15000 })
+    await this.buttonCreateSubmit().click()
+    await expect(this.inputCardTitle()).not.toBeVisible()
+  }
+
+  // Unlike IssuesPage.doActionOnIssue, this checks the row's bulk-select checkbox first.
+  // Table.svelte's showContextMenu() only passes an *array* of docs to the menu (`checked`)
+  // when at least one row is checked; otherwise it passes the single bare Doc. Actions
+  // registered with input: 'selection' (like "Copy as Markdown Table") are filtered out by
+  // filterAvailableActions() unless the doc passed in is an array
+  // (plugins/view-resources/src/actions.ts), so a plain right-click on an unchecked row will
+  // never show them - only input: 'focus'/'any' actions (like "Copy as Markdown") appear then.
+  async doActionOnCard (title: string, action: string): Promise<void> {
+    await this.cardRow(title).hover()
+    await this.cardRowCheckbox(title).click()
+    await this.cardRow(title).click({ button: 'right' })
+    await this.selectFromDropdown(this.page, action)
+  }
+
+  // Opens a card from the "All Cards" table (CardPresenter.svelte renders the title through
+  // DocNavLink, i.e. an <a> element).
+  async openCard (title: string): Promise<void> {
+    await this.cardRow(title).locator('a', { hasText: title }).click()
+  }
+}
diff --git a/tests/sanity/tests/model/channel-page.ts b/tests/sanity/tests/model/channel-page.ts
index c75bc1e4a3..35111b3108 100644
--- a/tests/sanity/tests/model/channel-page.ts
+++ b/tests/sanity/tests/model/channel-page.ts
@@ -338,6 +338,9 @@ export class ChannelPage extends CommonPage {
   async searchChannel (channelName: string): Promise<void> {
     await this.inputSearchIcon().click()
     await this.inputSearchChannel().fill(channelName)
+    // Give the full-text indexer time to pick up a just-created channel before
+    // the search query is submitted, otherwise the table briefly returns no rows.
+    await this.page.waitForTimeout(1000)
   }
 
   async checkLinkedChannelIsExist (channelName: string, linkedChannelType: LinkedChannelTypes): Promise<void> {