As a playwright, he wrote dramas with great epic style, in which he showed his talent for visual and theatrical effects.
In addition, critics such as Frederick A. de Armas and Miguel Zugasti have remarked that there is a confused geography as lands from America and Asia are juxtaposed.
A less-known play by Claramonte is El Gran rey de los desiertos, San Onofre (The great king of the deserts, Saint Onuphrius), which is evidently related to El Condenado por desconfiado, as has been shown by Ciriaco Moron and Alfredo Rodriguez Lopez-Vazquez.
The Spanish Scholar Marcelino Menendez y Pelayo looked down on Claramonte, but nowadays he has been reconsidered by the critics, particularly Alfredo Rodriguez Lopez-Vazquez, Charles V. Ganelin, Frederick A. de Armas and Fernando Cantalapiedra Erostarbe.
Although attributed to Lope de Vega, The Star of Seville was first considered to be the work of Claramonte by Sturgis E. Leavitt, in his 1931 book.
Leading this claim is Alfredo Rodrigues Lopez-Vazquez whose edition in Cátedra has changed the perception of a number of critics.