/docx

name: docx
description: 'Use this skill whenever the user wants to create, read, edit, or manipulate Word documents (.docx files). Triggers include: any mention of "Word doc", "word document", ".docx", or requests to produce professional documents with formatting like tables of contents, headings, page numbers, or letterheads. Also use when extracting or reorganizing content from .docx files, inserting or replacing images in documents, performing find-and-replace in Word files, working with tracked changes or comments, or converting content into a polished Word document. If the user asks for a "report", "memo", "letter", "template", or similar deliverable as a Word or .docx file, use this skill. Do NOT use for PDFs, spreadsheets, Google Docs, or general coding tasks unrelated to document generation.'
license: Proprietary. LICENSE.txt has complete terms

DOCX creation, editing, and analysis

Overview

A .docx file is a ZIP archive containing XML files.

Quick Reference

| Task | Approach | | ---------------------- | ----------------------------------------------------------------- | | Read/analyze content | `pandoc` or unpack for raw XML | | Create new document | Use `docx-js` - see Creating New Documents below | | Edit existing document | Unpack → edit XML → repack - see Editing Existing Documents below |

Converting .doc to .docx

Legacy `.doc` files are **auto-converted** on read and write — no manual step needed:

# Reading .doc (auto-converted to .docx internally)
python scripts/office/unpack.py legacy.doc unpacked/

# Writing .doc (auto-converted from .docx)
python scripts/office/pack.py unpacked/ output.doc

LibreOffice is used for the conversion, with automatic sandbox-friendly socket handling.

Reading Content

# Text extraction with tracked changes
pandoc --track-changes=all document.docx -o output.md

# Raw XML access
python scripts/office/unpack.py document.docx unpacked/

Converting to Images

python scripts/office/soffice.py --headless --convert-to pdf document.docx
pdftoppm -jpeg -r 150 document.pdf page

Accepting Tracked Changes

To produce a clean document with all tracked changes accepted (requires LibreOffice):

python scripts/accept_changes.py input.docx output.docx

---

Creating New Documents

Generate .docx files with JavaScript, then validate. Install: `npm install -g docx`

Setup

const {
  Document,
  Packer,
  Paragraph,
  TextRun,
  Table,
  TableRow,
  TableCell,
  ImageRun,
  Header,
  Footer,
  AlignmentType,
  PageOrientation,
  LevelFormat,
  ExternalHyperlink,
  TableOfContents,
  HeadingLevel,
  BorderStyle,
  WidthType,
  ShadingType,
  VerticalAlign,
  PageNumber,
  PageBreak,
} = require("docx");

const doc = new Document({
  sections: [
    {
      children: [
        /* content */
      ],
    },
  ],
});
Packer.toBuffer(doc).then((buffer) => fs.writeFileSync("doc.docx", buffer));

Validation

After creating the file, validate it. If validation fails, unpack, fix the XML, and repack.

python scripts/office/validate.py doc.docx

Page Size

// CRITICAL: docx-js defaults to A4, not US Letter
// Always set page size explicitly for consistent results
sections: [
  {
    properties: {
      page: {
        size: {
          width: 12240, // 8.5 inches in DXA
          height: 15840, // 11 inches in DXA
        },
        margin: { top: 1440, right: 1440, bottom: 1440, left: 1440 }, // 1 inch margins
      },
    },
    children: [
      /* content */
    ],
  },
];

**Common page sizes (DXA units, 1440 DXA = 1 inch):**

| Paper | Width | Height | Content Width (1" margins) | | ------------ | ------ | ------ | -------------------------- | | US Letter | 12,240 | 15,840 | 9,360 | | A4 (default) | 11,906 | 16,838 | 9,026 |

**Landscape orientation:** docx-js swaps width/height internally, so pass portrait dimensions and let it handle the swap:

size: {
  width: 12240,   // Pass SHORT edge as width
  height: 15840,  // Pass LONG edge as height
  orientation: PageOrientation.LANDSCAPE  // docx-js swaps them in the XML
},
// Content width = 15840 - left margin - right margin (uses the long edge)

Styles (Override Built-in Headings)

Use Arial as the default font (universally supported). Keep titles black for readability.

const doc = new Document({
  styles: {
    default: { document: { run: { font: "Arial", size: 24 } } }, // 12pt default
    paragraphStyles: [
      // IMPORTANT: Use exact IDs to override built-in styles
      {
        id: "Heading1",
        name: "Heading 1",
        basedOn: "Normal",
        next: "Normal",
        quickFormat: true,
        run: { size: 32, bold: true, font: "Arial" },
        paragraph: { spacing: { before: 240, after: 240 }, outlineLevel: 0 },
      }, // outlineLevel required for TOC
      {
        id: "Heading2",
        name: "Heading 2",
        basedOn: "Normal",
        next: "Normal",
        quickFormat: true,
        run: { size: 28, bold: true, font: "Arial" },
        paragraph: { spacing: { before: 180, after: 180 }, outlineLevel: 1 },
      },
    ],
  },
  sections: [
    {
      children: [
        new Paragraph({
          heading: HeadingLevel.HEADING_1,
          children: [new TextRun("Title")],
        }),
      ],
    },
  ],
});

Lists (NEVER use unicode bullets)

// ❌ WRONG - never manually insert bullet characters
new Paragraph({ children: [new TextRun("• Item")] }); // BAD
new Paragraph({ children: [new TextRun("\u2022 Item")] }); // BAD

// ✅ CORRECT - use numbering config with LevelFormat.BULLET
const doc = new Document({
  numbering: {
    config: [
      {
        reference: "bullets",
        levels: [