Sounds promising:
in my COS example, I had to use pure String parameters like  "0.54456,0.6987646,0.I123" 
happened by accident, more for reading and debugging

I use a similar setup in my example in OEX ,
Especially with TO_VECTOR() I ran into problems if I didn't add the explicit
type and size of the vector.  e.g. TO_VECTOR("..........",,DOUBLE,384)
as model all-MiniLM-L6-v2  produces exactly that type and size:

Don't ask for why. I just used the proposed example

- Thank you @Andrew Wardly:
Your observation is pretty correct. It derives from a late Latin dialect spoken
around Locarno (today Switzerland) around 1600. Eventually starting with a very sharp S.
So the mental link to "Semper Fidelis" is pretty close and matches well.  

set x="1,4,6,8,9,12"
while x>0 {write +x,! set x=$piece(x,",",2,*) }

x only !

set X="1,4,6,8,9,12" for i=1:1:$L(X,",") set Y=$p(X,",",i) write Y,!

Routine names starting with %Z or %z go to namespace %SYS automatically:
Though by mapping it to namespace %ALL any routine can be available in any namespace

Hi al!,
Just returning from some private troubleshooting I'm deeply moved and thankful for this feedback.
It's once more a motivation to continue my activities.
Sometimes I'm insisting on small pieces that may bypass general attention.
Though servicing customers - and I understand you all as my customers -
requires to take care also of the small and often annoying pieces. 

Special big THANKS to the brilliant team behind the DC+OEX+GM facility.
YOU ARE GREAT. 💐🌷🌺🌸💮🌼🌻
 

Thank you for publishing my attempts and the clear message:

• There is not just 1 solution. !

Symbols used in ObjectScript  may fit your needs

messages.log is in %instslldir%\mgr\ as ususal