What it does
Syncs your published blog posts from Substack (or any RSS feed) into markdown files. Your writing becomes part of your identity profile and can be referenced in digests and briefings. Works with any blog that has an RSS feed — not just Substack.
Used by
Setup
1
No authentication needed
Substack blogs have public RSS feeds. No API keys, no OAuth, no account linking. Just your Substack URL.
2
Set up the skill
See the /sync-blog skill page for the setup prompt. You just need your Substack URL (e.g., yourname.substack.com).
How it works
The sync script fetches your RSS feed, parses each post, converts HTML to markdown, and writes files to the blog/ directory. Each sync is incremental — existing posts aren't duplicated. The feed URL is typically https://yourname.substack.com/feed.