excel-agent-tools

Create, modify, and manipulate .xlsx Excel files safely using the excel-agent-tools CLI suite. This skill should be used when users need to read, write, format, calculate, or export Excel workbooks programmatically. It provides governance-first workflows with HMAC-SHA256 token protection, formula integrity preservation, and headless operation without Microsoft Excel dependency. Use for tasks including data extraction, sheet manipulation, formula calculations, macro safety scanning, and format conversion.

Create, edit, and validate PowerPoint presentations using the PowerPoint Agent Tools CLI suite. Provides systematic workflows for building presentations from scratch, modifying existing decks, merging presentations, and ensuring WCAG accessibility compliance. Use when asked to create a PowerPoint, build a presentation, edit slides, add charts/tables/images, merge decks, or validate presentation accessibility.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.