Show HN: Get your coding agent off ~2019 JavaScript, onto modern web primitives

Google Chrome has released a new tool called Modern Web Guidance, a collection of 200+ guides for web developers that provide best practices for using modern web primitives, such as text range highlighting, backdrops, and auto-growing text areas. The tool is the result of a 9-month collaboration between Chrome, Firefox, MDN, and Edge, and is available as an open-source package. The tool uses a deterministic 'legacy-scan' to identify outdated coding patterns and provide modern alternatives.