Agostinelli was born on 3 April 1974 in Jesi, Province of Ancona in the Marche region of Italy.

She serves on the Justice Commission of the Chamber and was a member of parliamentary committee set up to investigate the death of an armed personnel.

[3] She protested against the conversion of a sugar plant to bio-diesel refinery and voiced her concern against the high expenses of regional governing bodies.

[2][4] She has also participated in a hearing on transport Commission held in the Chamber of Deputies.

[5] Following the January 2017 Central Italy earthquakes, she questioned the slow response shown by the bureaucracy in relief work.