What Specter syncs

Specter is a native macOS app that does two-way sync between your Ghost blog and a folder of plain markdown files on your Mac. Edit a post locally and it pushes the change up to Ghost; edit a post in Ghost and it pulls the change down to your file. The point is to turn your blog into editable files so any tool you own — an editor, a script, an AI assistant — can work on it.

What it syncs is posts, and it is precise about that. Each post round-trips as a markdown file with its frontmatter preserved: the body, the title, tags, status (draft or published), the feature image URL, and the custom excerpt. Those are the fields you actually edit, and they survive the round trip in both directions.

What it does not touch is just as important to know. Specter does not sync your images themselves — you reference images by URL, and the files stay where Ghost hosts them. It also leaves your theme, your members list, and your newsletter settings alone. It syncs posts, and only posts — but it syncs them well. If you need a copy of everything else, Ghost’s own admin export is the complement.

For the bigger picture of why local files are useful, see editing Ghost posts with Claude, or browse the full guides.