createing an "L" anchor bolt concrete insert , then tie into lateral reinforcement bar will direct forces from vertical to lateral. creating a moment. this creates a greater resistance to uplift forces to overcome slab breakout.

About 4 hrs. Poured edged and sealed. We're getting faster

Agured down. 30" with 4" above grade with a concrete slab on top.

I think I'll be ok

My goal was to be able to secure the workshop dome but then be able to remove the eyes later with nothing sticking up when we use the slab as a patio with a flat surface.

Typically metal corrodes when in contact with soil over periods of time introducing 2 things potential for separation of auger fins and entry point for moisture to migrate through the slab. Best practice is encapsulation of rebar with concrete with 2 " min from any edge. In the desert environment this may not be an issue. Best practice would be not to introduce penetrations though the slab.

6 more pours Anand almost done...maybe a concrete berm around slab to protect from erosion around base. Or an 18" step around with a ramp on far side for doorway and vehicle ramp.