Answer

The earliest known text connected with Siddhachakra worship is not Sanskrit; it is the Prakrit work Sīrivāla Kahā by Ratnaśekhara-sūri. So, if you are asking who first compiled the tradition in the oldest known form, the commonly accepted name is Ratnaśekhara-sūri. ( jainpedia.org)

Explanation

For the Siddhachakra Vidhan specifically, there does not seem to be one single universally accepted “original compiler” for all versions. In manuscript listings, Siddhachakra Vidhan is often recorded with “Original Sutra Author: N/A,” which suggests it is a later ritual compilation tradition rather than one fixed canonical sutra by a single author. ( jainqq.org)

Spiritual Understanding

In Jain Dharma, the value of Siddhachakra lies mainly in its bhakti, aradhana, and the spiritual qualities it represents, not only in textual authorship. The worship is closely tied to the Shripal–Maynasundari tradition and the Navapada/Siddhachakra symbolism. ( jainpedia.org)

Takeaway

So the short answer is: the earliest known compiler associated with Siddhachakra worship is Ratnaśekhara-sūri, but the Sanskrit Siddhachakra Vidhan tradition itself is not linked to one universally fixed author. ( jainpedia.org)