diff --git a/packages/coding-agent/docs/extensions.md b/packages/coding-agent/docs/extensions.md
index 20065c87..8176f41c 100644
--- a/packages/coding-agent/docs/extensions.md
+++ b/packages/coding-agent/docs/extensions.md
@@ -143,6 +143,8 @@ The `package.json` approach enables:
 | `@mariozechner/pi-ai` | AI utilities (`StringEnum` for Google-compatible enums) |
 | `@mariozechner/pi-tui` | TUI components for custom rendering |
 
+npm dependencies work too. Add a `package.json` next to your extension (or in a parent directory), run `npm install`, and imports from `node_modules/` are resolved automatically.
+
 Node.js built-ins (`node:fs`, `node:path`, etc.) are also available.
 
 ## Writing an Extension