A full-featured Substack client that wraps 30 operations into MCP tools. You can publish Notes directly or batch-publish drafts from an Obsidian vault file, create and schedule posts, pull dashboard KPIs and post-level analytics, and snapshot metrics to markdown. Auth uses your browser session cookie since Substack has no public API. The vault integration parses sections from a markdown file and optionally moves published drafts to an archive section with timestamps. Ships with a local Pillow card renderer and a Canva adapter that generates playbooks for the Canva MCP. Built with FastMCP, uses stdio transport. Useful if you're managing a Substack publication programmatically or bridging your note-taking workflow to published content.