https://www.mediawiki.org/wiki/Phabricator/Help#Passing_certain_values_in_the_task_creation_URL lists no ways to add a CC list or to search for tickets with a link using URL parameters.
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You can add a CC list by using an existing bug as template. Searching with URL parameters is possible, but not documented, it seems: https://phabricator.wikimedia.org/search/?script=1&query=%3Cquery%3E
And as a workaround, you can pass template=CC:+@user+@user+@user
which will then be added in the description, and then automatically to the CC (should, at least)
About URLs CCing individuals, it is probably better to CC projects instead. The individuals actually CCed when doing this will be those subscribed to the project. I haven't tested whether this would work, though.
About URLs for specific searches, why using URL parameters when you can create a more precise Maniphest advanced saved search and offer its unique URL?
For being able to set up generic search keys on IRC. Search for tickets in project with foo text or search for tickets by author or...
I appreciate the intent of this task but it seems to have gone dormant and we don't have the resources to muster it. It may be worth bringing upstream if someone is interested.
My free time to be able to complete this task I suppose and the fact that no one else has volunteered to do it yet.
If you want to work on this, assign it to yourself. Doing so now.
and the fact that no one else has volunteered to do it yet.
"No one has volunteered" is not "stalled" otherwise 95% of open tasks would be stalled. "No one has volunteered" is expressed by no assignee set.
Editing is fixed, consistent, and documented (e.g. Edit Task → Configure Form → Using HTTP Parameters) in upstream HEAD.
Search should be consistent but does not automatically generate documentation yet. You can "View Source", find the input name, and then swap that for a GET parameter in most/all cases.
We will not work on this (hence declining), and if you have convincing reasons why you must have to use a URL parameter for this search (instead of entering parameters in the web interface or the API, feel free to bring them up in upstream.
Closing as declined.
Task could be reopened when describing an actual root problem (for which "allow searching or adding CCs with URL parameters" might be one possible solution).
For completeness, this is supported today, there's just no autogenerated documentation in the search case.
Here's how to prefill this particular constraint in search, today:
https://phabricator.wikimedia.org/maniphest/?subscriber=epriestley
There's no search documentation today. You can find field names by checking the PHP source or the HTML source, or guessing (they're mostly easily guessable, and accept multiple variant aliases).
Here's how to prefill this particular constraint in edit, today:
https://phabricator.wikimedia.org/maniphest/task/edit/form/1/?subscriber=epriestley
Here's the edit documentation (accessible via Create Task → Configure Form → Using HTTP Parameters):
https://phabricator.wikimedia.org/maniphest/task/edit/parameters/