This came out of the [[ https://wikitech.wikimedia.org/wiki/Incident_documentation/20160712-EchoCentralAuth | Echo+CentralAuth failure to login ]] incident's [[ https://wikitech.wikimedia.org/wiki/Incident_documentation/20160712-EchoCentralAuth/Retrospective | retrospective ]].
Note: The quotes in the task title should be taken as [[ https://en.wikipedia.org/wiki/Scare_quotes | scare quotes ]] in the sense that they are either aspirational ("all") or will be defined as we go ("first responders", "components").
Previous attempts (which may or may not be solution to this problem):
* [[ https://www.mediawiki.org/wiki/Developers/Maintainers | mw:Developers/Maintainers ]]
** First (?) attempt started in 2012
** collectively maintained by the developer community
** **Now (2017-03-23) canonical version, as far as @greg is concerned**
* [[ https://docs.google.com/spreadsheets/d/1e25O69JxLPYBrwunDDLFGM80eFQuTzghY0EsvvgQR0s/edit#gid=0 | Extension blame map ]] (gdoc) - last edited July 26th, 2016 (as of 2016-08-23)
** Initiated by @Jdforrester-WMF, @greg had previously reviewed.
** High duplicity with mw:Developers/Maintainers but with a different perspective (WMF team vs person)
** **Now (2017-03-23) most likely out of sync with the more up to date mw:Dev/Maint**
* [[ https://docs.google.com/spreadsheets/d/1t_JE4HsSZXgxFvvUy3ieTQiarFAxl3LpIxx5vTlNHbM/edit#gid=0 | MediaWiki Component Ownership ]] (gdoc) - last edited April 10th, 2015
* Team specific attempts:
** See description of T115854