This article originally began as the draft script for an internal talk at my company, but I decided to turn the reusable parts into a public blog post. So I will deliberately avoid any internal repositories, processes, or case studies, and keep only the methods, work habits, and mindset shifts that are useful to most developers.

The main audience for this article is people who are still using IDE-based AI assistance and web chat products from large models, but have not really used command-line tools such as Claude Code or Codex CLI yet. Through this article, what I want to convey is why CLI tools are the future, along with a rough beginner-oriented introduction to how they are used.

If I had to summarize the core point of this article in one sentence, it would be this: large-model-assisted programming is only the starting point, while Vibe Coding is a new way of working. It is not just “an IDE with an extra chat box,” nor is it simply “asking AI to autocomplete code.” It is closer to gradually reconstructing the act of “writing code” into the process of “describing goals, constraining execution, reviewing results, and iterating on the system”. And for the latter, all you really need is to interact with an Agent in natural language.