1. Identify the required document type (Word, PDF, PowerPoint, Excel).
2. Load the corresponding sub-skill (e.g., `document-skills/docx` for Word documents).
3. For docx: Use docx-js for creation, Document library for editing, and pandoc for analysis.
4. For pdf: Extract text, tables, and metadata as needed; merge or split documents.
5. For pptx: Create or edit presentations, work with layouts and charts.
6. For xlsx: Manipulate spreadsheets, apply formulas, and create charts.
7. Verify the output and make any necessary adjustments.