Your sentence is almost correct, but needs a few small corrections to match traditional Jain teaching:

1. Name of the text

The well‑known work by Ācārya Nemichandra is usually called “Dravya‑saṃgraha”, not “Dravya Parīkṣā.” (Some people loosely say Parīkṣā/Pariksha, but the standard title is Dravya‑saṃgraha.)

1. What the text does – your description is right in spirit

Yes, it is: - a short philosophical text, - that explains the six fundamental substances (ṣaḍ‑dravya) of Jainism, and - that connects right understanding of these dravyas with samyag‑darśan and mokṣa (right faith and liberation).

So this part of your explanation is basically correct.

1. Small technical correction about the list of things

You wrote: “soul, matter, karma, space, time and dharmādharmā.”

In Jain philosophy, the six dravyas are:

1. Jīva – soul 2. Pudgala – matter (includes karmic matter) 3. Dharma – medium of motion 4. Adharma – medium of rest 5. Ākāśa – space 6. Kāla – time

Here, karma is not a separate dravya; it is a special, very subtle form of pudgala (matter). So more accurate wording would be:

“It explains and examines the six fundamental substances (dravya) of Jainism (soul, matter including karma, dharma, adharma, space and time), and shows how right understanding of them leads to right faith and liberation.”

So:

• As a general description, what Jain GPT gave is mostly correct.
• For precision, change the title to Dravya‑saṃgraha and remember that karma is pudgala‑dravya, not a separate seventh dravya.