Minecraft Creator Tools includes a suite of tests and analytics that can be used to build reports across projects. It can output reports as an HTML file, in addition to being displayed within the site.
To use the validator, use "Choose file" in the Validate/Inspect Tool to select a zip file from your local device that contains project files. This can be any typical zip of a Minecraft project: an MCAddon file, an MCPack file, or a ZIP file where you have behavior packs under behavior_packs and resource packs under resource_packs. Note that these ZIP files are temporarily stored and locally processed within your browser.
Validation results are displayed in the "Inspector" section of the application. Note that there are different suites of tests that you can use. You can also opt to download the results in comma-separated-value (CSV) format or web page (HTML) format.