Using an MCP Client for the Substack Draft Loop Is Better Than I Expected

Part 2 of 9

Once setup worked, the next thing that mattered was the actual writing loop.

I didn’t want an MCP that only looked good in demos. I wanted one where I could create a draft, update it, preview it, and iterate without bouncing around the Substack dashboard every minute.

That batch became:

• create_formatted_post
• update_post
• preview_draft

That’s the point where this started feeling genuinely useful instead of just technically amusing.

Repo:
https://github.com/abanoub-ashraf/substack-mcp-plus