Write Markdown Once, Publish It Everywhere: dev.to, Medium, AWS Builder Center and LinkedIn

Publishing technical content across multiple platforms is often a fragmented, manual process due to inconsistent Markdown support and varying API availability. The 'publishing-kit' project addresses this by providing an agent-based workflow that automates the transformation of a single source Markdown file into platform-specific formats for dev.to, Medium, AWS Builder Center, and LinkedIn. By utilizing custom Python scripts and browser automation, the kit handles complex requirements such as image resizing, table conversion, and pre-flight validation. This ensures that code blocks, tables, and cover images render correctly before publication. While dev.to offers a robust REST API, other platforms require browser-based interaction, which the kit manages through in-page helpers to prevent common formatting errors. This approach allows developers to maintain a single source of truth while ensuring consistent, high-quality output across diverse publishing ecosystems.