Why Obsidian × Claude Code / Codex Keeps Going Viral — Reading Through the Popular Posts of 2026
I use Obsidian, so posts about Obsidian × Claude Code / Codex catch my eye when they come across my timeline. And since the start of this year they have gone viral again and again, every few months. No single new app is at the center of it, yet the same theme keeps taking off.
I wanted to try it in my own Vault, but each post says something slightly different. Some are only about folder structure, some tell you to install the official skills, and some bring in MCP. Reading them piecemeal, I could not tell what to start with, or even whether these were competing approaches at all.
So before starting, I read straight through the posts that took off between January and September 2026 and put them back in chronological order. The conclusion: they are not competing. The core idea has not changed once since January. What changes is only which layer is put in front — the compilation rules, the official skills, Codex, MCP, the CLI. What follows is that map.

