Skip / do-not-run mechanism for pipelines

Sometimes I just need to park some code and don't want CI to run and use up minutes.

Currently the only way to manage that is to find a positive match for all branches I do want to run (I can't see a documented way to exclude a pattern).

I could do a positive match for the negative case (heh) for something like "donotmerge*" but even so, the build would show as green/successful rather than skipped (which is obviously risky).

So basically I'm looking for a way to tell Pipelines NOT to run for a particular branch or pattern; and I don't want Pipelines to show a "successful" build for that scenario. I do want some visibility of skipped builds as there's potential for people to over-use it - just as Bamboo shows skipped or stopped builds.