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Practical articles and illustrated guides, revised as the tools and context change.

2026-10-0813 min

Claude Code Install and Usage Guide: From Installation to Your First Code Change

How to install Claude Code, sign in, choose a permission mode, write a CLAUDE.md, and roll back when something goes wrong. Based on the official docs as of October 2026.

TutorialClaude CodeAI Coding

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2026-10-0813 min

Codex Install and Usage Guide: Desktop App Download, CLI, and IDE

Where to download the ChatGPT desktop app and run your first task, how to install and sign in to the CLI, what auth.json is, how sandbox and approvals work, and how to write AGENTS.md. Based on the official docs as of October 2026.

TutorialCodexAI Coding

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