feat(code): paste rich text as Markdown in the composer

[richardsolomou]

Problem

The composer is a plain-text Tiptap editor, so pasting rich text (web pages, Google Docs, Notion) dropped all formatting.

Changes

• Convert clipboard text/html to Markdown on paste, so headings, lists, tables, and links survive as Markdown the agent can read.
• Uses turndown + @joplin/turndown-plugin-gfm (the maintained gfm fork). Falls back to default plain-text paste when the HTML adds nothing.

How did you test this?

Added unit tests for the HTML to Markdown conversion (headings, lists, tables, code, no-op cases); all 6 pass. Biome and typecheck clean via pre-commit.

Automatic notifications

• Publish to changelog?
• Alert Sales and Marketing teams?

---

Created with PostHog Code

[greptile-apps]

Prompt To Fix All With AI

Fix the following 1 code review issue. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 1
apps/code/src/renderer/features/message-editor/utils/htmlToMarkdown.test.ts:4-29
The first four tests share the same structure (html input → expected markdown string) and would read more clearly as a single parameterised test using `it.each`. The custom engineering standard here prefers parameterised tests whenever multiple cases follow the same pattern.

```suggestion
describe("htmlToMarkdown", () => {
  it.each([
    [
      "headings, emphasis and links",
      "<h1>Title</h1><p>Some <strong>bold</strong> and <em>italic</em> with a <a href='https://posthog.com'>link</a>.</p>",
      "# Title\n\nSome **bold** and *italic* with a [link](https://posthog.com).",
    ],
    [
      "unordered lists",
      "<ul><li>one</li><li>two</li></ul>",
      "-   one\n-   two",
    ],
    [
      "tables via the gfm plugin",
      "<table><thead><tr><th>a</th><th>b</th></tr></thead><tbody><tr><td>1</td><td>2</td></tr></tbody></table>",
      "| a   | b   |\n| --- | --- |\n| 1   | 2   |",
    ],
    [
      "fenced code blocks",
      "<pre><code>const x = 1;</code></pre>",
      "```\nconst x = 1;\n```",
    ],
  ])("converts %s", (_, html, expected) => {
    expect(htmlToMarkdown(html)).toBe(expected);
  });
```

_{Reviews (1): Last reviewed commit: "feat(code): paste rich text as Markdown ..." | Re-trigger Greptile}

[tatoalo]

thanks!