So we have a a core set of powers you get via a feat. Then utility powers you can take and rituals that can be learned because of that skill. And a good enough skill definition to apply it in skill challenges
I've got it a bit different in some details I guess. You can learn rituals based on skill proficiency, or gain them directly via boons. Powers come from boons directly in general, though there are some 'general powers' that relate to skills (IE things like tracking or Spot Hidden).Wind Walker invocations might be like acrobatics
these are basically defining a new skill with its own general powers ie on magical skills... they are trained only of course but in the case of the invocations currently being described they are patterned after existing skills thieving and acrobatics with tweaks I am being lazy but it ensures base line balance / ie usefulness and focus.I've got it a bit different in some details I guess. You can learn rituals based on skill proficiency, or gain them directly via boons. Powers come from boons directly in general, though there are some 'general powers' that relate to skills (IE things like tracking or Spot Hidden).
Right, you could go that way. This was in my earlier HoML design, 'general powers' provide access to things anyone could TRY to do, including skill-related ones. Then there could be 'trained only' powers related to skills as well, but later I just moved them all to boons (IE a boon like 'Master Tracker' can give you Nature proficiency and access to some powers related to tracking/hunting, including some which are 'procedures'. Technically procedures/rituals ARE a type of power as well, but since 'utility power' is a category without slots you can just use them as you wish, assuming whatever price is paid and time taken, etc.).these are basically defining a new skill with its own general powers ie on magical skills... they are trained only of course but in the case of the invocations currently being described they are patterned after existing skills thieving and acrobatics with tweaks I am being lazy but it ensures base line balance / ie usefulness and focus.