AI First and Codex in Practice: This is a practical course for the AI era, covering the AI First philosophy, prompt engineering, Codex usage, and agent building. The course is co-taught by multiple instructors, covering everything from large model fundamentals and context management to combining Obsidian note vaults with AI, creating Skill workflows, multi-platform content generation, and Codex in practice (PPT creation, video editing, dynamic workflows, etc.). Emphasizing both theory and hands-on practice, it helps you master the ability to implement AI from vague ideas to complete solutions.

The course not only covers the core concepts of AI First and prompt engineering, but also deeply demonstrates how to apply Codex in real scenarios such as office work, video, and PPT. You will learn how to build a personal knowledge base with Obsidian and integrate AI into your note-taking workflow to automate knowledge management; through the Skill mechanism, turn repetitive work into reusable skills, and with dynamic workflows, make AI a truly capable assistant for boosting productivity. Whether you are a beginner or a developer with some foundation, you can find a practical path that suits you and quickly complete the full loop from idea to delivery.

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• 1.AI First Introduction
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• 2.LLMs and Prompts
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• 3.Context, Tokens, and Multi-Turn Conversations
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• 4.Hallucinations, Agents, and Markdown
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• 5.From Vague Prompts to Precise Prompts
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• 6.How Codex Differs from Ordinary Chat Boxes
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• 7.The Four Basic Settings of Codex
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• 8.Codex Step-by-Step Tutorial
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• 9.Getting Started with Codex Skills and Plugins
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• 10.Codex Video Editing Beginner Tutorial
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• 11.Best Practices for Making PPT with Codex
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• 12.Notes as Files: Understanding the Underlying Logic of Obsidian
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• 13.Key Configuration: Make Obsidian Usable Immediately
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• 14.Writing Basics: Note-Taking Without Relying on Markdown
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• 15.Bidirectional Links: Building Relationships Between Notes
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• 16.Search First: A Skill More Important Than Folders
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• 17.Integrating Claudian: Installing an AI Engine for Your Note Vault
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• 18.Web Clipper: Connecting the Internet to Your Note Vault
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• 19.Material Integration: Let AI Read a Set of Articles for You
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• 20.Multi-Platform Writing: Generate Multi-Platform Content from One Set of Materials
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• 21.Knowledge base: Let AI see your note structure
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• 22.Organize messy information and turn it into Skills
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• 23.What is a Skill
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• 24.Run an existing Skill
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• 25.Create your first Skill
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• 26.Optimization and workflow integration
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• 27.Where to find Skills
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• 28.Safety and tips
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• 29.Recommended Skills
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• 30.Demo: the minimal idea-to-final workflow
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• 31.Mindset: making your workflow learn you over time
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• 32.Elevate: Apply the same skeleton to your own industry
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• 33.Q&A for the first 29 lessons + Obsidian with DeepSeek + mainstream plugins
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• 34.Hermes beginner's guide
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• 35.Hermes update features overview
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• 36.Full process of connecting Claude Code to DeepSeek
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• 37.Codex + HyperFrames: Generate a short video with one prompt
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• 38.Claude Code + DeepSeek + Dynamic Workflows beginner's guide
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• 39.Claude Code + DeepSeek + Dynamic Workflows hands-on practice
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• 40.From a single idea to a complete solution
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• 41.Summary: How to use AI and Codex to solve problems from now on
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💡 Learning Tip:Content reflects industry practices at time of publication. Please refer to the latest platform rules when learning.