Connect your WordPress site
Install the Camello plugin, press Connect WordPress in Camello and paste the pairing code into the plugin's settings. The code expires in ten minutes.
Install the Camello plugin from WordPress.org or upload the zip from your dashboard. Activate it.
In Camello, open your site and press Connect WordPress. You get a pairing code. Paste it into the plugin's settings page. The plugin and Camello exchange a key; the code expires in ten minutes.
From then on every change you apply is written into your site's own fields through that plugin, signed, and read back to confirm. Nothing is injected with JavaScript.
Disconnecting in the plugin removes the key. The plugin keeps its own undo table until you delete it.