• Add showNotification and showBannerMessage endpoints to the extensions API.
  • Add hot reload and hot restart actions to the simulated DevTools environment.
  • Update build_and_copy command, as well as documentation, to reference config.yaml instead of config.json, as required by package:extension_discovery v2.0.0.
  • Add exception handling to devtools_extensions build_and_copy command.


  • Add a simulated DevTools environment that for easier development.
  • Add a build_and_copy command to build a devtools extension and copy the output to the parent package's extension/devtools directory.


  • Add missing dependency on package:devtools_shared.


  • Initial commit. This package is under construction.