Building an OpenGraph preview canvas for GitHub Copilot

This article details the creation of an open-source OpenGraph Preview canvas for the GitHub Copilot app, designed to streamline debugging social preview bugs. It addresses the tedious feedback loop of editing meta tags, deploying, and validating across platforms. The tool works with public URLs and localhost, offering four modes: Browse (live page view), Previews (compare nine social renderings like Facebook, Twitter, LinkedIn), Raw metadata (inspect and copy metadata as JSON), and Diagnostics (check required/recommended tags). It integrates with Copilot to turn diagnostics into actionable tasks, improving developer workflow by enabling inspection and fixes before deployment.