Script condition and ctx.vars

Actually, I was inspired by this post:

As a transform and conditionsupports scripting, they should have access to ctx.vars. Is this falsified already or still valid, wondering, especially the vendor perspective would be important here as this is a commercial component.

The use case is very significant I think, such as increasing dimensionality of watch evaluations by causal relationships. In that sense, chain inputs and chain transforms together would provide with huge flexibility and would expand the usability of watcher, which is a huge step. Kudos for that.
(But at my small step here now, I am still kinda stuck!)

Thanks anyway...