Gov. Andrew M. Cuomo and legislative leaders reached a deal Sunday night to create a new state agency to police abuse and neglect of more than one million New Yorkers with developmental disabilities, mental illnesses and other conditions that put them at risk, state officials said Sunday.

The governor also agreed to take some steps to bolster outside oversight of the state’s care, yielding to concerns raised by Assembly Democrats and some advocates for people with disabilities that state regulators have long failed to adequately respond to cases of abuse on their own. Coverage from The New York Times.