From d5ecc0b107011fd85f6e43c3ef642936fdbbf367 Mon Sep 17 00:00:00 2001
From: Jason Woltje <jason@diversecanvas.com>
Date: Tue, 24 Feb 2026 01:40:34 +0000
Subject: [PATCH] feat(web): add markdown round-trip and replace textarea with
 Tiptap (#501)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>
---
 apps/web/package.json                         |   3 +-
 .../src/components/knowledge/EntryEditor.tsx  |  64 ++-----
 .../components/knowledge/KnowledgeEditor.tsx  |  21 ++-
 .../knowledge/__tests__/EntryEditor.test.tsx  | 165 ++++++------------
 docs/TASKS.md                                 |  22 +--
 pnpm-lock.yaml                                |  39 +++++
 6 files changed, 132 insertions(+), 182 deletions(-)

diff --git a/apps/web/package.json b/apps/web/package.json
index 458202a..f4df651 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -46,7 +46,8 @@
     "react-dom": "^19.0.0",
     "react-grid-layout": "^2.2.2",
     "recharts": "^3.7.0",
-    "socket.io-client": "^4.8.3"
+    "socket.io-client": "^4.8.3",
+    "tiptap-markdown": "^0.9.0"
   },
   "devDependencies": {
     "@mosaic/config": "workspace:*",
diff --git a/apps/web/src/components/knowledge/EntryEditor.tsx b/apps/web/src/components/knowledge/EntryEditor.tsx
index e7aaf64..de352a8 100644
--- a/apps/web/src/components/knowledge/EntryEditor.tsx
+++ b/apps/web/src/components/knowledge/EntryEditor.tsx
@@ -1,7 +1,7 @@
 "use client";
 
-import React, { useState, useRef } from "react";
-import { LinkAutocomplete } from "./LinkAutocomplete";
+import React from "react";
+import { KnowledgeEditor } from "./KnowledgeEditor";
 
 interface EntryEditorProps {
   content: string;
@@ -9,57 +9,21 @@ interface EntryEditorProps {
 }
 
 /**
- * EntryEditor - Markdown editor with live preview and link autocomplete
+ * EntryEditor - WYSIWYG editor for knowledge entries.
+ * Wraps KnowledgeEditor (Tiptap) with markdown round-trip.
+ * Content is stored as markdown; the editor provides rich text editing.
  */
 export function EntryEditor({ content, onChange }: EntryEditorProps): React.JSX.Element {
-  const [showPreview, setShowPreview] = useState(false);
-  const textareaRef = useRef<HTMLTextAreaElement>(null);
-
   return (
-    <div className="entry-editor relative">
-      <div className="flex justify-between items-center mb-2">
-        <label className="block text-sm font-medium text-gray-700 dark:text-gray-300">
-          Content (Markdown)
-        </label>
-        <button
-          type="button"
-          onClick={() => {
-            setShowPreview(!showPreview);
-          }}
-          className="text-sm text-blue-600 dark:text-blue-400 hover:underline"
-        >
-          {showPreview ? "Edit" : "Preview"}
-        </button>
-      </div>
-
-      {showPreview ? (
-        <div className="prose prose-sm max-w-none dark:prose-invert p-4 border border-gray-300 dark:border-gray-700 rounded-md bg-white dark:bg-gray-900 min-h-[300px]">
-          <div className="whitespace-pre-wrap">{content}</div>
-        </div>
-      ) : (
-        <div className="relative">
-          <textarea
-            ref={textareaRef}
-            value={content}
-            onChange={(e) => {
-              onChange(e.target.value);
-            }}
-            className="w-full min-h-[300px] p-4 border border-gray-300 dark:border-gray-700 rounded-md bg-white dark:bg-gray-900 text-gray-900 dark:text-gray-100 font-mono text-sm focus:ring-2 focus:ring-blue-500 focus:border-transparent"
-            placeholder="Write your content here... (Markdown supported)"
-          />
-          <LinkAutocomplete
-            textareaRef={textareaRef}
-            onInsert={(newContent) => {
-              onChange(newContent);
-            }}
-          />
-        </div>
-      )}
-
-      <p className="mt-2 text-xs text-gray-500 dark:text-gray-400">
-        Supports Markdown formatting. Type <code className="text-xs">[[</code> to insert links to
-        other entries.
-      </p>
+    <div className="entry-editor">
+      <label className="block text-sm font-medium mb-2" style={{ color: "var(--text-2)" }}>
+        Content
+      </label>
+      <KnowledgeEditor
+        content={content}
+        onChange={onChange}
+        placeholder="Write your content here... Supports markdown formatting."
+      />
     </div>
   );
 }
diff --git a/apps/web/src/components/knowledge/KnowledgeEditor.tsx b/apps/web/src/components/knowledge/KnowledgeEditor.tsx
index 8164f83..8f52903 100644
--- a/apps/web/src/components/knowledge/KnowledgeEditor.tsx
+++ b/apps/web/src/components/knowledge/KnowledgeEditor.tsx
@@ -11,18 +11,20 @@ import { TableCell } from "@tiptap/extension-table-cell";
 import { TableHeader } from "@tiptap/extension-table-header";
 import CodeBlockLowlight from "@tiptap/extension-code-block-lowlight";
 import Placeholder from "@tiptap/extension-placeholder";
+import { Markdown } from "tiptap-markdown";
 import { common, createLowlight } from "lowlight";
 import type { Editor } from "@tiptap/react";
+import type { MarkdownStorage } from "tiptap-markdown";
 
 import "./KnowledgeEditor.css";
 
 const lowlight = createLowlight(common);
 
 export interface KnowledgeEditorProps {
-  /** HTML content for the editor */
+  /** Markdown content for the editor */
   content: string;
-  /** Called when editor content changes (provides HTML) */
-  onChange: (html: string) => void;
+  /** Called when editor content changes (provides markdown) */
+  onChange: (markdown: string) => void;
   /** Placeholder text when editor is empty */
   placeholder?: string;
   /** Whether the editor is editable */
@@ -366,7 +368,11 @@ export function KnowledgeEditor({
 }: KnowledgeEditorProps): ReactElement {
   const handleUpdate = useCallback(
     ({ editor: e }: { editor: Editor }) => {
-      onChange(e.getHTML());
+      const s = e.storage as unknown as Record<string, MarkdownStorage>;
+      const mdStorage = s.markdown;
+      if (mdStorage) {
+        onChange(mdStorage.getMarkdown());
+      }
     },
     [onChange]
   );
@@ -395,6 +401,13 @@ export function KnowledgeEditor({
       Placeholder.configure({
         placeholder,
       }),
+      Markdown.configure({
+        html: true,
+        breaks: false,
+        tightLists: true,
+        transformPastedText: true,
+        transformCopiedText: true,
+      }),
     ],
     content,
     editable,
diff --git a/apps/web/src/components/knowledge/__tests__/EntryEditor.test.tsx b/apps/web/src/components/knowledge/__tests__/EntryEditor.test.tsx
index f8fba19..a0e6ee2 100644
--- a/apps/web/src/components/knowledge/__tests__/EntryEditor.test.tsx
+++ b/apps/web/src/components/knowledge/__tests__/EntryEditor.test.tsx
@@ -1,13 +1,29 @@
 import React from "react";
 import { render, screen } from "@testing-library/react";
-import userEvent from "@testing-library/user-event";
 import { describe, it, expect, beforeEach, vi } from "vitest";
 import { EntryEditor } from "../EntryEditor";
 
-// Mock the LinkAutocomplete component
-vi.mock("../LinkAutocomplete", () => ({
-  LinkAutocomplete: (): React.JSX.Element => (
-    <div data-testid="link-autocomplete">LinkAutocomplete</div>
+// Mock KnowledgeEditor since Tiptap requires a full DOM
+vi.mock("../KnowledgeEditor", () => ({
+  KnowledgeEditor: ({
+    content,
+    onChange,
+    placeholder,
+  }: {
+    content: string;
+    onChange: (md: string) => void;
+    placeholder?: string;
+  }): React.JSX.Element => (
+    <div data-testid="knowledge-editor" data-content={content} data-placeholder={placeholder}>
+      <button
+        data-testid="trigger-change"
+        onClick={(): void => {
+          onChange("updated content");
+        }}
+      >
+        Change
+      </button>
+    </div>
   ),
 }));
 
@@ -21,133 +37,50 @@ describe("EntryEditor", (): void => {
     vi.clearAllMocks();
   });
 
-  it("should render textarea in edit mode by default", (): void => {
+  it("should render KnowledgeEditor component", (): void => {
     render(<EntryEditor {...defaultProps} />);
 
-    const textarea = screen.getByPlaceholderText(/Write your content here/);
-    expect(textarea).toBeInTheDocument();
-    expect(textarea.tagName).toBe("TEXTAREA");
+    expect(screen.getByTestId("knowledge-editor")).toBeInTheDocument();
   });
 
-  it("should display current content in textarea", (): void => {
+  it("should have a content label", (): void => {
+    render(<EntryEditor {...defaultProps} />);
+
+    expect(screen.getByText("Content")).toBeInTheDocument();
+  });
+
+  it("should pass content to KnowledgeEditor", (): void => {
     const content = "# Test Content\n\nThis is a test.";
     render(<EntryEditor {...defaultProps} content={content} />);
 
-    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
-    const textarea = screen.getByPlaceholderText(/Write your content here/) as HTMLTextAreaElement;
-    expect(textarea.value).toBe(content);
+    const editor = screen.getByTestId("knowledge-editor");
+    expect(editor).toHaveAttribute("data-content", content);
   });
 
-  it("should call onChange when content is modified", async (): Promise<void> => {
+  it("should pass placeholder to KnowledgeEditor", (): void => {
+    render(<EntryEditor {...defaultProps} />);
+
+    const editor = screen.getByTestId("knowledge-editor");
+    expect(editor).toHaveAttribute(
+      "data-placeholder",
+      "Write your content here... Supports markdown formatting."
+    );
+  });
+
+  it("should forward onChange to KnowledgeEditor", async (): Promise<void> => {
+    const { default: userEvent } = await import("@testing-library/user-event");
     const user = userEvent.setup();
     const onChangeMock = vi.fn();
 
     render(<EntryEditor {...defaultProps} onChange={onChangeMock} />);
 
-    const textarea = screen.getByPlaceholderText(/Write your content here/);
-    await user.type(textarea, "Hello");
-
-    expect(onChangeMock).toHaveBeenCalled();
+    await user.click(screen.getByTestId("trigger-change"));
+    expect(onChangeMock).toHaveBeenCalledWith("updated content");
   });
 
-  it("should toggle between edit and preview modes", async (): Promise<void> => {
-    const user = userEvent.setup();
-    const content = "# Test\n\nPreview this content.";
+  it("should render with entry-editor wrapper class", (): void => {
+    const { container } = render(<EntryEditor {...defaultProps} />);
 
-    render(<EntryEditor {...defaultProps} content={content} />);
-
-    // Initially in edit mode
-    expect(screen.getByPlaceholderText(/Write your content here/)).toBeInTheDocument();
-    expect(screen.getByText("Preview")).toBeInTheDocument();
-
-    // Switch to preview mode
-    const previewButton = screen.getByText("Preview");
-    await user.click(previewButton);
-
-    // Should show preview
-    expect(screen.queryByPlaceholderText(/Write your content here/)).not.toBeInTheDocument();
-    expect(screen.getByText("Edit")).toBeInTheDocument();
-    // Check for partial content (newlines may split text across elements)
-    expect(screen.getByText(/Test/)).toBeInTheDocument();
-    expect(screen.getByText(/Preview this content/)).toBeInTheDocument();
-
-    // Switch back to edit mode
-    const editButton = screen.getByText("Edit");
-    await user.click(editButton);
-
-    // Should show textarea again
-    expect(screen.getByPlaceholderText(/Write your content here/)).toBeInTheDocument();
-    expect(screen.getByText("Preview")).toBeInTheDocument();
-  });
-
-  it("should render LinkAutocomplete component in edit mode", (): void => {
-    render(<EntryEditor {...defaultProps} />);
-
-    expect(screen.getByTestId("link-autocomplete")).toBeInTheDocument();
-  });
-
-  it("should not render LinkAutocomplete in preview mode", async (): Promise<void> => {
-    const user = userEvent.setup();
-
-    render(<EntryEditor {...defaultProps} />);
-
-    // LinkAutocomplete should be present in edit mode
-    expect(screen.getByTestId("link-autocomplete")).toBeInTheDocument();
-
-    // Switch to preview mode
-    const previewButton = screen.getByText("Preview");
-    await user.click(previewButton);
-
-    // LinkAutocomplete should not be in preview mode
-    expect(screen.queryByTestId("link-autocomplete")).not.toBeInTheDocument();
-  });
-
-  it("should show help text about wiki-link syntax", (): void => {
-    render(<EntryEditor {...defaultProps} />);
-
-    expect(screen.getByText(/Type/)).toBeInTheDocument();
-    expect(screen.getByText(/\[\[/)).toBeInTheDocument();
-    expect(screen.getByText(/to insert links/)).toBeInTheDocument();
-  });
-
-  it("should maintain content when toggling between modes", async (): Promise<void> => {
-    const user = userEvent.setup();
-    const content = "# My Content\n\nThis should persist.";
-
-    render(<EntryEditor {...defaultProps} content={content} />);
-
-    // Verify content in edit mode
-    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
-    const textarea = screen.getByPlaceholderText(/Write your content here/) as HTMLTextAreaElement;
-    expect(textarea.value).toBe(content);
-
-    // Toggle to preview
-    await user.click(screen.getByText("Preview"));
-    // Check for partial content (newlines may split text across elements)
-    expect(screen.getByText(/My Content/)).toBeInTheDocument();
-    expect(screen.getByText(/This should persist/)).toBeInTheDocument();
-
-    // Toggle back to edit
-    await user.click(screen.getByText("Edit"));
-    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
-    const textareaAfter = screen.getByPlaceholderText(
-      /Write your content here/
-    ) as HTMLTextAreaElement;
-    expect(textareaAfter.value).toBe(content);
-  });
-
-  it("should apply correct styling classes", (): void => {
-    render(<EntryEditor {...defaultProps} />);
-
-    const textarea = screen.getByPlaceholderText(/Write your content here/);
-    expect(textarea).toHaveClass("font-mono");
-    expect(textarea).toHaveClass("text-sm");
-    expect(textarea).toHaveClass("min-h-[300px]");
-  });
-
-  it("should have label for content field", (): void => {
-    render(<EntryEditor {...defaultProps} />);
-
-    expect(screen.getByText("Content (Markdown)")).toBeInTheDocument();
+    expect(container.querySelector(".entry-editor")).toBeInTheDocument();
   });
 });
diff --git a/docs/TASKS.md b/docs/TASKS.md
index bc4aea7..7b47bfd 100644
--- a/docs/TASKS.md
+++ b/docs/TASKS.md
@@ -13,8 +13,8 @@
 | TW-WDG-003  | done        | Widget picker UI — Drawer/dialog to browse available widgets from registry, preview size/description, add to dashboard                                     | #488  | web  | feat/ms18-widget-picker          | TW-WDG-002                                             | TW-VER-001                                  | worker       | 2026-02-23 | 2026-02-23   | 25K      | ~12K | PR #498 merged                             |
 | TW-WDG-004  | done        | Widget configuration UI — Per-widget settings dialog using configSchema, configure data source/filters/colors/title                                        | #488  | web  | feat/ms18-layout-management      | TW-WDG-002                                             | TW-VER-001                                  | worker       | 2026-02-23 | 2026-02-23   | 30K      | ~8K  | PR #499 merged (bundled with WDG-005)      |
 | TW-WDG-005  | done        | Layout management UI — Save/rename/switch/delete layouts, reset to default. UI controls in dashboard header area                                           | #488  | web  | feat/ms18-layout-management      | TW-WDG-002                                             | TW-VER-001                                  | worker       | 2026-02-23 | 2026-02-23   | 20K      | ~8K  | PR #499 merged (bundled with WDG-004)      |
-| TW-EDT-001  | not-started | Tiptap integration — Install @tiptap/react + extensions, build KnowledgeEditor component with toolbar (headings, bold, italic, lists, code, links, tables) | #489  | web  | TBD                              | TW-PLAN-001                                            | TW-EDT-002                                  | worker       | —          | —            | 35K      | —    |                                            |
-| TW-EDT-002  | not-started | Markdown round-trip + File Manager integration — Import markdown to Tiptap, export to markdown + HTML. Replace textarea in knowledge create/edit           | #489  | web  | TBD                              | TW-EDT-001                                             | TW-VER-001                                  | worker       | —          | —            | 30K      | —    |                                            |
+| TW-EDT-001  | done        | Tiptap integration — Install @tiptap/react + extensions, build KnowledgeEditor component with toolbar (headings, bold, italic, lists, code, links, tables) | #489  | web  | feat/ms18-tiptap-editor          | TW-PLAN-001                                            | TW-EDT-002                                  | worker       | 2026-02-23 | 2026-02-23   | 35K      | ~12K | PR #500 merged                             |
+| TW-EDT-002  | done        | Markdown round-trip + File Manager integration — Import markdown to Tiptap, export to markdown + HTML. Replace textarea in knowledge create/edit           | #489  | web  | feat/ms18-markdown-roundtrip     | TW-EDT-001                                             | TW-VER-001                                  | worker       | 2026-02-23 | 2026-02-23   | 30K      | ~10K | PR #501 (pending)                          |
 | TW-KBN-001  | not-started | Kanban filtering — Add filter bar (project, assignee, priority, search). Support project-level and user-level views. URL param persistence                 | #490  | web  | TBD                              | TW-PLAN-001                                            | TW-VER-001                                  | worker       | —          | —            | 30K      | —    |                                            |
 | TW-VER-001  | not-started | Tests — Unit tests for new components, update existing tests, fix any regressions                                                                          | #491  | web  | TBD                              | TW-WDG-003,TW-WDG-004,TW-WDG-005,TW-EDT-002,TW-KBN-001 | TW-VER-002,TW-DOC-001                       | worker       | —          | —            | 25K      | —    |                                            |
 | TW-VER-002  | not-started | Theme verification — Verify all 5 themes render correctly on all pages, no broken colors/contrast issues                                                   | #491  | web  | TBD                              | TW-THM-003,TW-VER-001                                  | TW-DOC-001                                  | worker       | —          | —            | 15K      | —    |                                            |
@@ -23,12 +23,12 @@
 
 ## Summary
 
-| Metric        | Value                                    |
-| ------------- | ---------------------------------------- |
-| Total tasks   | 16                                       |
-| Completed     | 10 (PLAN-001, THM-001–003, WDG-001–005)  |
-| In Progress   | 0                                        |
-| Remaining     | 6                                        |
-| PRs merged    | #493, #494, #495, #496, #497, #498, #499 |
-| Issues closed | —                                        |
-| Milestone     | MS18-ThemeWidgets                        |
+| Metric        | Value                                                |
+| ------------- | ---------------------------------------------------- |
+| Total tasks   | 16                                                   |
+| Completed     | 12 (PLAN-001, THM-001–003, WDG-001–005, EDT-001–002) |
+| In Progress   | 0                                                    |
+| Remaining     | 4                                                    |
+| PRs merged    | #493–#500, #501 (pending)                            |
+| Issues closed | —                                                    |
+| Milestone     | MS18-ThemeWidgets                                    |
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b1efe31..e957992 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -473,6 +473,9 @@ importers:
       socket.io-client:
         specifier: ^4.8.3
         version: 4.8.3
+      tiptap-markdown:
+        specifier: ^0.9.0
+        version: 0.9.0(@tiptap/core@3.20.0(@tiptap/pm@3.20.0))
     devDependencies:
       '@mosaic/config':
         specifier: workspace:*
@@ -3201,9 +3204,15 @@ packages:
   '@types/json-schema@7.0.15':
     resolution: {integrity: sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==}
 
+  '@types/linkify-it@3.0.5':
+    resolution: {integrity: sha512-yg6E+u0/+Zjva+buc3EIb+29XEg4wltq7cSmd4Uc2EE/1nUVmxyzpX6gUXD0V8jIrG0r7YeOGVIbYRkxeooCtw==}
+
   '@types/linkify-it@5.0.0':
     resolution: {integrity: sha512-sVDA58zAw4eWAffKOaQH5/5j3XeayukzDk+ewSsnv3p4yJEZHCCzMDiZM8e0OUrRvmpGZ85jf4yDHkHsgBNr9Q==}
 
+  '@types/markdown-it@13.0.9':
+    resolution: {integrity: sha512-1XPwR0+MgXLWfTn9gCsZ55AHOKW1WN+P9vr0PaQh5aerR9LLQXUbjfEAFhjmEmyoYFWAyuN2Mqkn40MZ4ukjBw==}
+
   '@types/markdown-it@14.1.2':
     resolution: {integrity: sha512-promo4eFwuiW+TfGxhi+0x3czqTYJkG8qB17ZUJiVF10Xm7NLVRSLUsfRTU/6h1e24VvRnXCx+hG7li58lkzog==}
 
@@ -3211,6 +3220,9 @@ packages:
     resolution: {integrity: sha512-jmjpa4BwUsmhxcfsgUit/7A9KbrC48Q0q8KvnY107ogcjGgTFDlIL3RpihNpx2Mu1hM4mdFQjoVc4O6JoGKHsA==}
     deprecated: This is a stub types definition. marked provides its own type definitions, so you do not need this installed.
 
+  '@types/mdurl@1.0.5':
+    resolution: {integrity: sha512-6L6VymKTzYSrEf4Nev4Xa1LCHKrlTlYCBMTlQKFuddo1CvQcE52I0mwfOJayueUC7MJuXOeHTcIU683lzd0cUA==}
+
   '@types/mdurl@2.0.0':
     resolution: {integrity: sha512-RGdgjQUZba5p6QEFAVx2OGb8rQDL/cPRG7GiedRzMcJ1tYnUANBncjbSB1NRGwbvjcPeikRABz2nshyPk1bhWg==}
 
@@ -5622,6 +5634,9 @@ packages:
   make-error@1.3.6:
     resolution: {integrity: sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==}
 
+  markdown-it-task-lists@2.1.1:
+    resolution: {integrity: sha512-TxFAc76Jnhb2OUu+n3yz9RMu4CwGfaT788br6HhEDlvWfdeJcLUsxk1Hgw2yJio0OXsxv7pyIPmvECY7bMbluA==}
+
   markdown-it@14.1.1:
     resolution: {integrity: sha512-BuU2qnTti9YKgK5N+IeMubp14ZUKUUw7yeJbkjtosvHiP0AZ5c8IAgEMk79D0eC8F23r4Ac/q8cAIFdm2FtyoA==}
     hasBin: true
@@ -6989,6 +7004,11 @@ packages:
     resolution: {integrity: sha512-azl+t0z7pw/z958Gy9svOTuzqIk6xq+NSheJzn5MMWtWTFywIacg2wUlzKFGtt3cthx0r2SxMK0yzJOR0IES7Q==}
     engines: {node: '>=14.0.0'}
 
+  tiptap-markdown@0.9.0:
+    resolution: {integrity: sha512-dKLQ9iiuGNgrlGVjrNauF/UBzWu4LYOx5pkD0jNkmQt/GOwfCJsBuzZTsf1jZ204ANHOm572mZ9PYvGh1S7tpQ==}
+    peerDependencies:
+      '@tiptap/core': ^3.0.1
+
   tldts-core@6.1.86:
     resolution: {integrity: sha512-Je6p7pkk+KMzMv2XXKmAE3McmolOQFdxkKw0R8EYNr7sELW46JqnNeTX8ybPiQgvg1ymCoF8LXs5fzFaZvJPTA==}
 
@@ -10521,8 +10541,15 @@ snapshots:
 
   '@types/json-schema@7.0.15': {}
 
+  '@types/linkify-it@3.0.5': {}
+
   '@types/linkify-it@5.0.0': {}
 
+  '@types/markdown-it@13.0.9':
+    dependencies:
+      '@types/linkify-it': 3.0.5
+      '@types/mdurl': 1.0.5
+
   '@types/markdown-it@14.1.2':
     dependencies:
       '@types/linkify-it': 5.0.0
@@ -10532,6 +10559,8 @@ snapshots:
     dependencies:
       marked: 17.0.1
 
+  '@types/mdurl@1.0.5': {}
+
   '@types/mdurl@2.0.0': {}
 
   '@types/memcached@2.2.10':
@@ -13188,6 +13217,8 @@ snapshots:
 
   make-error@1.3.6: {}
 
+  markdown-it-task-lists@2.1.1: {}
+
   markdown-it@14.1.1:
     dependencies:
       argparse: 2.0.1
@@ -14763,6 +14794,14 @@ snapshots:
 
   tinyspy@4.0.4: {}
 
+  tiptap-markdown@0.9.0(@tiptap/core@3.20.0(@tiptap/pm@3.20.0)):
+    dependencies:
+      '@tiptap/core': 3.20.0(@tiptap/pm@3.20.0)
+      '@types/markdown-it': 13.0.9
+      markdown-it: 14.1.1
+      markdown-it-task-lists: 2.1.1
+      prosemirror-markdown: 1.13.4
+
   tldts-core@6.1.86: {}
 
   tldts@6.1.86: