The document proposes developing a methodology and toolkit for enhancing agricultural productivity in developing countries through SMS messages. It discusses two existing projects - DatAgro in Chile and AMIS in Cameroon - that use SMS to provide information to farmers. It aims to document lessons from these projects to create open-source tools and resources for others seeking to use mobile technology to improve agriculture. A proposed budget outlines costs for collaboration between projects, research, an online toolkit, workshops, and a virtual community of practice.