In an exclusive interview with The Herald, Lorna Slater revealed that plans were underway to publish the prospectus under plans to hold a new referendum next year.
It comes as campaign plans get set to ramp up across Scotland in the next few months and marks the first time that the Greens have said they will be involved in the drafting of the Indyref2 prospectus – which is currently being updated by the Scottish Government.
While both parties support independence some policies are excluded from the co-operation agreement, such as their stances on membership of Nato.
Nicola Sturgeon has said the document will be a “detailed prospectus” which will renew the case for independence, and in January it was revealed a team of 11 civil servants had begun work on it.
Lorna Slater told The Herald: “There will be more than one prospectus for independence. The Scottish Greens will develop a prospectus for independence but as part of the Scottish Government we will also contribute to the Scottish Government’s prospectus.