Difference between Kamma, Kammanto, and Kammanta? Question

Hi all, i would like to ask if anyone knows the difference in meaning between these three pali words:


Kamma
Kammanto
Kammanta


What i've found so far

I can see from looking at the pali words for "right action" that this is called "samma kammanto" (sometimes "samma kammanta"), so i'm guessing that these two are the same?

I'm also guessing that Kamma is a more general term which includes speech and thought/intention as well as physical action?

Context

I'm building a to-do-list and life-organizing application and since i have a Buddhist background i'd like to give the application a name inspired by Buddhism
They are basically the same word, though the anta suffix does give it some specific meaning. Remember that the word karma has heavy religious baggage in ancient India every though it simply means action, from the verbal root /kar = &quot;in regards to doing&quot;. So kammanta is a way of specifying that one is merely talking about actual mundane action or work. kamma is still often used to mean mundane  work, however, e.g.:

tena kho pana samayena aññatarā itthī kammaṃ karoti. aññataro bhikkhu sāratto taṃ itthiṃ etadavoca -- “tiṭṭha, bhagini, ahaṃ karissāmīti
At one time, a certain woman was doing some work. A certain bhikkhu, enamoured with that woman, said this to her: &quot; Rest, sister, I will do it.&quot;
(duṭṭhullavācāsikkhāpadaṃ)

Nouns in Pali and Sanskrit are &quot;declined&quot;, meaning their endings change depending on how they are used. -o declension is used in Pali for masculine singular nominative (when it is the subject of the sentence) of -a nouns. That's where kammanto comes from.
As to the idea of a task, something one must or should do, there are words like karaṇiya and katabba.