DiscussionTools fills a large and painful gap MediaWiki's communication capabilities. Even in its current experimental state, I think it's worth offering it as part of the default experience; and with VisualEditor now being part of the bundle, it doesn't seem too complicated.
- Passed security review or already Wikimedia deployed
- Voting CI structure tests
- Runs MediaWiki-CodeSniffer
- Runs phan
- Supports MySQL, SQLite, and Postgres (uses abstract schema)
- GPL v2 or later compatible license (MIT)
- Extension's default configuration provides optimal experience
- Tested with web installer
- Any relevant dependencies/enhancing extensions also bundled (Linter: T290465)