notion-idempotent-sync

To sync markdown to Notion without duplicates, use an idempotent archive-then-rewrite approach that archives existing page blocks before recreating content from the markdown source. This ensures a stable final state when re-syncing edits.

Idempotent markdown-to-Notion synchronization is a process that archives existing Notion page content and rewrites it from markdown sources. It guarantees that re-running the sync operation produces the exact same final state without duplicating any content blocks.

Yes, this markdown to Notion sync handles YAML frontmatter and tables. It automatically strips YAML frontmatter to prevent polluting Notion page headers and uses a verified markdown-to-Notion converter to accurately process table structures.

To safely run bulk markdown updates to Notion pages, execute a single-file canary sync first, then use paginated API calls for archiving and apply rate-limited patching. Waiting between steps respects Notion API counters and prevents errors.

Before syncing markdown files to Notion pages, you need a pre-mapped configuration linking each markdown source to its corresponding Notion page ID. This existing page mapping is required to target the correct pages for the archive-then-rewrite operation.