How useful and complex would be to build these metrics in Phabricator? Wikimedia uses these metrics with Bugzilla and we need to decide whether to build a Maniphest backend for Metrics Grimoire or a native solution in Phabricator.
Key metrics that we are getting from http://korma.wmflabs.org/:
* Volume of contributors (any activity), authors, resolvers.
* Volume of tasks created, closed, open.
* Median age of unattended tasks (Needs triage AND Backlog AND no comments from !author).
* Median age of open tasks by priority (excluding Needs Volunteer).
* Lists of main contributors TBD.
All this by project, with a possibility to aggregate data of different projects (main use case: [[ https://wikitech.wikimedia.org/wiki/Key_Wikimedia_software_projects | key Wikimedia software projects ]]. See what we have currently at
* [[ http://korma.wmflabs.org/browser/its.html | General Bugzilla metrics ]]
* [[ http://korma.wmflabs.org/browser/its-repos.html | By product ]]
* [[ http://korma.wmflabs.org/browser/bugzilla_response_time.html | Bugzilla response time ]]
//(Original task reported at http://fab.wmflabs.org/T53)//