Often, a defense attorney will reach out to the prosecutor to see if there is an offer in the case. The prosecutor has very little information about the client as a person or his life experience.
It is very helpful for a client to provide mitigating information to his or her attorney. For example, if a client is charged with a drug offense, it is very helpful to present evidence of drug treatment and rehabilitation to the prosecutor.
If you are working with a defense attorney in an effort to secure a favorable plea offer from the prosecutor, consider providing information about your mental health status, employment history, information about your children or other relatives for whom you are responsible.