2026 Codex AI-application practice course: from zero config and Skills to video office and knowledge base - building a personal AI agent execution team

Course Intro

The Codex AI-Application Practice Course (latest 2026) is a project-driven course built around Codex agents, Skills, content production, data analysis, office automation and knowledge-base setup. Starting from Codex install/config, multimodal model access and basics, it helps zero-basics students understand agent logic, then learn to package mature methods into reusable Skills. The practice stage, through multiple real projects, systematically teaches AI video auto-making and editing, Excel data analysis and business dashboards, auto PPT generation, e-commerce detail pages and batch image making, storyboard videos, HyperFrames effects, digital-human voice-overs, and viral-content replication. The advanced part connects Codex with Feishu and Obsidian for phone remote control, office-process automation, automatic content fetching and local knowledge accumulation. The core is not just "can use AI" but mastering the method - state a goal, Codex executes, accumulate a Skill, continuously reuse - packaging one successful operation into a repeatable intelligent workflow so one person can build their own AI execution team.

Course feature keywords: down-to-earth, 0-to-1, pure practice, systematic learning; real-scene landing, fast start, case-driven, mastering core agent ability; one person can own an AI execution team. Core idea: the real divide is not whether you use an AI tool, but whether you can make AI understand a task, complete it, and accumulate the method - turning one success into a reusable work system. Closed loop: state the goal, Codex executes, accumulate and reuse. Value: no programming base needed; connect topics, scripts, material, video and data into a continuously running content system. Planned 20 chapters, ~15-20 hours, recorded lessons plus community Q&A, dual-teacher (application design + engineering delivery). First ten projects (continuously updated to 20): set up your Codex environment; make your first Skill; video creation and auto editing; Excel analysis, dashboards and PPT; detail pages and a generic image-making flow; replicate an excellent short video; HyperFrames effect editing; an online digital-human voice-over tool; bring Codex into Feishu office flows; and build Codex + Obsidian.