Skill: dev-document

Fork

Document generation (PDF, DOCX, XLSX, PPTX). Trigger when the user wants to create a document, generate a report, export to PDF/Word/Excel/PowerPoint, or produce an office file.

Configuration

Property	Value
Context	fork
Allowed tools	Read, Write, Edit, Bash, Glob, Grep
Keywords	dev, document

Detailed description

Document Generation

Goal

Create professional documents in different formats: PDF, DOCX, XLSX, PPTX.

Supported formats

Format	Extension	Recommended tool	Usage
PDF	.pdf	puppeteer, wkhtmltopdf, markdown-pdf	Reports, invoices, formal docs
Word	.docx	docx (npm), python-docx	Editable documents, specifications
Excel	.xlsx	exceljs, openpyxl	Tabular data, numeric reports
PowerPoint	.pptx	pptxgenjs, python-pptx	Presentations, pitch decks

Instructions per format

PDF - Generation from HTML/Markdown

# Option 1: Puppeteer (Node.js)
npm install puppeteer

# Option 2: wkhtmltopdf (CLI)
wkhtmltopdf input.html output.pdf

# Option 3: markdown-pdf (Markdown -> PDF)
npm install markdown-pdf

// Puppeteer - HTML to PDF
import puppeteer from 'puppeteer';

async function generatePDF(htmlContent: string, outputPath: string) {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.setContent(htmlContent, { waitUntil: 'networkidle0' });
  await page.pdf({
    path: outputPath,
    format: 'A4',
    margin: { top: '20mm', right: '15mm', bottom: '20mm', left: '15mm' },
    printBackground: true,
  });
  await browser.close();
}

DOCX - Word documents

// npm install docx
import { Document, Packer, Paragraph, TextRun, HeadingLevel } from 'docx';
import * as fs from 'fs';

async function generateDOCX(title: string, sections: Section[]) {
  const doc = new Document({
    sections: [{
      properties: {},
      children: [
        new Paragraph({
          text: title,
          heading: HeadingLevel.TITLE,
        }),
        ...sections.flatMap(section => [
          new Paragraph({
            text: section.heading,
            heading: HeadingLevel.HEADING_1,
          }),
          new Paragraph({
            children: [new TextRun(section.content)],
          }),
        ]),
      ],
    }],
  });

  const buffer = await Packer.toBuffer(doc);
  fs.writeFileSync('output.docx', buffer);
}

XLSX - Spreadsheets

// npm install exceljs
import ExcelJS from 'exceljs';

async function generateXLSX(data: Record<string, any>[]) {
  const workbook = new ExcelJS.Workbook();
  const sheet = workbook.addWorksheet('Data');

  // Headers from the keys of the first object
  const headers = Object.keys(data[0]);
  sheet.addRow(headers);

  // Header styling
  sheet.getRow(1).font = { bold: true };
  sheet.getRow(1).fill = {
    type: 'pattern',
    pattern: 'solid',
    fgColor: { argb: 'FF4472C4' },
  };

  // Data
  data.forEach(row => {
    sheet.addRow(headers.map(h => row[h]));
  });

  // Auto-width
  sheet.columns.forEach(col => {
    col.width = 15;
  });

  await workbook.xlsx.writeFile('output.xlsx');
}

PPTX - Presentations

// npm install pptxgenjs
import PptxGenJS from 'pptxgenjs';

function generatePPTX(slides: SlideData[]) {
  const pptx = new PptxGenJS();

  slides.forEach(slideData => {
    const slide = pptx.addSlide();

    // Title
    slide.addText(slideData.title, {
      x: 0.5, y: 0.5, w: 9, h: 1,
      fontSize: 28, bold: true, color: '363636',
    });

    // Content
    slide.addText(slideData.content, {
      x: 0.5, y: 1.8, w: 9, h: 4,
      fontSize: 16, color: '666666',
      bullet: slideData.bullets ? true: false,
    });
  });

  pptx.writeFile({ fileName: 'output.pptx' });
}

Python alternatives

# PDF with reportlab
pip install reportlab

# DOCX with python-docx
pip install python-docx

# XLSX with openpyxl
pip install openpyxl

# PPTX with python-pptx
pip install python-pptx

Generation workflow

1. IDENTIFY the required format (PDF, DOCX, XLSX, PPTX)
        |
2. PREPARE the data and content
        |
3. CHOOSE the library suited to the runtime (Node.js or Python)
        |
4. GENERATE the document with professional formatting
        |
5. VALIDATE the output (opening, layout, data)

Best practices

• Always use templates for visual consistency
• Separate data from formatting
• Handle encoding errors (UTF-8)
• Test with different data sizes
• Include metadata (author, date, subject)

Rules

• ALWAYS ask for the desired format if not specified
• ALWAYS verify that dependencies are installed before generating
• NEVER hardcode file paths
• PREFER reusable templates over one-shot documents

Automatic triggering

This skill is automatically activated when:

• The matching keywords are detected in the conversation
• The task context matches the skill's domain

Triggering examples

• "I want to dev..."
• "I want to document..."

Context fork

Fork means the skill runs in an isolated context:

• Does not pollute the main conversation
• Results are returned cleanly
• Ideal for autonomous tasks

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See also

• Back to skills
• Architecture