paperjsx

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha f10a5237c0bd · 31 Oct 2026Report an issue or request a re-scan

• Publishercomposiohq GitHub organizationOwner of the repository this skill is read from
• Source foldercomposiohq/awesome-codex-skills/paperjsxThe exact folder we audited
• LicenceNot declaredAs the repository states it
• Commit pinned for this verdictf10a5237c0bdA new audit runs when the source changes
• Repository statusNot archivedLast push 97 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Generate PPTX presentations, DOCX documents, XLSX spreadsheets, and PDF reports from structured JSON input using PaperJSX.

---
name: paperjsx
description: Generate PPTX presentations, DOCX documents, XLSX spreadsheets, and PDF reports from structured JSON input using PaperJSX.
---

# PaperJSX Document Generation

Generate professional documents from JSON layout specs. PaperJSX is generation-only — it creates new files, it does not edit existing ones.

## Triggers

Use this skill when the user asks to:
- Create a presentation or generate slides
- Make a PPTX or PowerPoint file
- Create a Word document or DOCX
- Generate an Excel spreadsheet with charts
- Create a JSON to PPTX, JSON to DOCX, or JSON to XLSX file
- Generate a PDF invoice, report, or chart document

## Install

Install the format-appropriate package:

```bash
# Presentations
npm install @paperjsx/json-to-pptx

# Word documents
npm install @paperjsx/json-to-docx

# Spreadsheets
npm install @paperjsx/json-to-xlsx

# PDF documents
npm install @paperjsx/json-to-pdf
```

## How it works

1. Build a JSON layout spec matching the schema in `references/json-schema.md`
2. Write a Node.js script that passes the JSON to the PaperJSX engine
3. Run the script to generate the output file
4. Validate the output file exists and is non-zero bytes

Do **not** write imperative PaperJSX API code. The execution model is always: JSON spec in, document file out.

## Example: PPTX generation

```javascript
import { PaperEngine } from "@paperjsx/json-to-pptx";
import fs from "node:fs";

const spec = {
  type: "Document",
  meta: { title: "Q4 Review" },
  slides: [
    {
      type: "Slide",
      children: [
        { type: "Text", content: "Q4 2025 Business Review", style: { fontSize: 36, bold: true } }
      ]
    }
  ]
};

const buffer = await PaperEngine.render(spec);
fs.writeFileSync("presentation.pptx", buffer);
console.log("Generated presentation.pptx");
```

## Example: DOCX generation

```javascript
import { renderToDocx } from "@paperjsx/json-to-docx";
import fs from "node:fs";

const result = await renderToDocx({
  type: "DocxDocument",
  pageSize: "a4",
  orientation: "portrait",
  pages: [
    {
      elements: [
        { type: "heading", level: 1, text: "Quarterly Report" },
        { type: "paragraph", text: "Section content here." }
      ]
    }
  ]
});

fs.writeFileSync("report.docx", result.buffer);
console.log("Generated report.docx");
```

## Example: XLSX generation

```javascript
import { SpreadsheetEngine } from "@paperjsx/json-to-xlsx";
import fs from "node:fs";

const spec = {
  meta: { title: "Revenue Data", creator: "PaperJSX" },
  sheets: [{
    name: "Revenue",
    rows: [
      { cells: [{ value: "Quarter" }, { value: "Revenue" }] },
      { cells: [{ value: "Q1 2026" }, { value: 420000 }] },
      { cells: [{ value: "Q2 2026" }, { value: 510000 }] }
    ]
  }]
};

const buffer = await SpreadsheetEngine.render(spec);
fs.writeFileSync("revenue.xlsx", buffer);
console.log("Generated revenue.xlsx");
```

## Validation

After generating any file, always verify:

```javascript
import fs from "node:fs";

const stats = fs.statSync("output.pptx");
if (stats.size === 0) {
  throw new Error("Generated file is empty");
}
console.log(`Output file: ${stats.size} bytes`);
```

If the engine throws an error, surface the full error message to the user.

## Schema reference

See `references/json-schema.md` for the complete JSON layout spec schema for all supported formats.

Excerpt, first 3,366 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

npm install @paperjsx/json-to-pptx
npm install @paperjsx/json-to-docx
npm install @paperjsx/json-to-xlsx
npm install @paperjsx/json-to-pdf

git clone https://github.com/composiohq/awesome-codex-skills
git -C awesome-codex-skills checkout f10a5237c0bd

Works in

1. 2026-10-31
   ✓SAFE B 89 / 100

   first audit · source f10a5237c0bd

Questions about paperjsx

• github.com/composiohq/awesome-codex-skills/tree/master/paperjsx — the audited source at commit f10a5237c0bd and every finding aboveObserved · 31 Oct 2026

Spotted something wrong? Report a correction · Methodology