I explained this in different thread the decline :
https://www.somalispot.com/threads/...weyn-true-or-false.169519/page-3#post-4094779
It was the disruption of internal trade routes caused by invasions and the fracture in political leadership that caused it to collapse and decline.
The Muslim region was an empire with semi-autonomous provinces as Al-Omari/Al-Maqrizi described it , u can see this also in Futuh as well in more detail, even describing the institution of the Emir and the political economic and heartland of it was in South-Western Somaliland and Haud.
No studies thus far at least that i am aware of but we have some information on them that the urban ones were organized into formal guilds in towns/cities and they produced things for commercial use and market places. Guilds simulated kinship structure and was headed by an ''Aw'' or Father.
Some info on Somali craftsmen in the city of Harar:
The rural ones had more of a reduced role and made things for a small local community as bondsmen, i am not certain how much we can transplant that to the medieval period since this is rooted in the context of a subsistence strategy and the medieval period there was a surplus of food and availability of water that could give people higher flexibility to attend to other roles.
You even saw an increase in female political and religious/intellectual participation in this time as well. Sheikhas, Female saints ''Ay's'' , and scholars