pi-obsidian-context

A Pi extension that bridges your Obsidian vault with Pi. It surfaces the active file, open tabs, and selected text as a TUI widget and automatically injects them as hidden LLM context — so Pi knows what you're looking at in Obsidian without you having to paste it.

Prerequisites

This extension reads a context.json file from your vault's .obsidian/ directory. You need an Obsidian plugin that writes this file (for example, obsidian-agent-context).

The JSON file is expected to have the following shape:

{
  "ts": 1714500000000,
  "active": { "path": "notes/foo.md", "name": "foo.md" },
  "tabs": [
    { "path": "notes/foo.md", "name": "foo.md", "isActive": true },
    { "path": "notes/bar.md", "name": "bar.md", "isActive": false }
  ],
  "selection": {                // optional
    "text": "selected text…",
    "sourcePath": "notes/foo.md"
  }
}

Install

pi install npm:pi-obsidian-context

How it works

1. Vault detection — On session start, the extension walks up from cwd looking for a .obsidian/ directory to locate your vault root.

2. TUI widget — A compact status line is displayed in the Pi footer showing the active file, tab count, and any current selection.

3. LLM context injection — Before each agent turn, the extension injects the current Obsidian state (active file, open tabs, selected text) as a hidden message so the model is aware of your editing context.

4. Live updates — The extension watches context.json for changes and refreshes the widget in real time.

License

MIT