code: func defaultCaps() []apicaps.PBCap {
  	return []apicaps.PBCap{
  		{ID: string(pb.CapSolveBase), Enabled: true},
  		{ID: string(pb.CapSolveInlineReturn), Enabled: true},
  		{ID: string(pb.CapResolveImage), Enabled: true},
  		{ID: string(pb.CapReadFile), Enabled: true},
  	}
  }
docs: // defaultCaps returns the capabilities that were implemented when capabilities
  // support was added. This list is frozen and should never be changed.