Tau is a command-line AI agent that handles coding tasks like explaining repos, writing tests, and fixing errors. It's designed as a teaching project—clean, modular code that shows how to build a coding agent without the complexity of production systems.

• The architecture splits into three layers (tau_ai for model translation, tau_agent for the reusable brain, tau_coding for the app wrapper), making each part readable and independent
• It works with multiple model providers (OpenAI, Anthropic, OpenRouter, local models) through a provider-neutral event system, so you can swap backends without changing the core
• Sessions persist as append-only JSONL files with branching and compaction support, letting you resume work and inspect the full conversation history

PPT Master is an open-source Python skill that runs inside AI IDEs (Claude Code, VS Code Copilot, Cursor) to turn PDFs, DOCX, URLs or Markdown into fully editable PowerPoint decks with real shapes, text boxes, and charts—not images. It runs locally, keeps your data off third-party servers, and costs only your AI model usage.

• Generates real editable PowerPoint objects (shapes, text boxes, charts) instead of image-based slides, via AI IDEs like Claude Code, Cursor, or Copilot
• Costs about $0.08 in AI tokens per deck since it runs locally and only requires your existing AI subscription
• Data stays on your machine rather than being uploaded to third-party servers
• Works across multiple AI models and IDEs (Claude, GPT, Gemini, Kimi) avoiding vendor lock-in