It seems that the Coffee workflow does not have any effect on Sonoma 14.1.1.
This Mac upgraded from Sonoma 14.1 last week, I am pretty sure Coffee kept the machine awake then.
For what it is worth I copy the debug data below.
As far as I can tell the workflow runs just fine, so perhaps Apple changed something in the last Sonoma release?
[22:11:24.636] Coffee Coffee[Script Filter] Queuing argument ''
[22:11:24.713] Coffee Coffee[Script Filter] Script with argv '' finished
[22:11:24.719] Coffee Coffee[Script Filter] {"rerun":0.5,"items":[{"title":"Turn On","subtitle":"Keep awake indefinitely","arg":"coffeecoffee_process_anchor on","icon":{"path":"icon_alt.png"}}]}
[22:11:24.855] Coffee Coffee[Script Filter] Processing complete
[22:11:24.861] Coffee Coffee[Script Filter] Passing output 'coffeecoffee_process_anchor on' to Arg and Vars
[22:11:24.863] Coffee Coffee[Arg and Vars] Processing complete
[22:11:24.864] Coffee Coffee[Arg and Vars] Passing output 'coffeecoffee_process_anchor on' to Junction
[22:11:24.865] Coffee Coffee[Junction] Processing complete
[22:11:24.866] Coffee Coffee[Junction] Passing output 'coffeecoffee_process_anchor on' to Run Script