In a small bowl, whisk together flour, baking soda, baking powder and salt; set aside;
In a large bowl mix coconut oil and brown sugar until they are well combined;
Add pumpkin puré and combine well;
Mix in shredded coconut and combine well;
Add gradually the flour combined with the rest of the dry ingredients; mix well so that there are no lumps;
Preheat the oven at 180° C and line a large baking trey with parchment paper;
Using a spoon or an ice cream scoop roll the dough into balls (walnut sized) and line them into the baking trey; flatten the dough balls with the back of a spoon or the palm of your hand;
Bake the cookies for around 12 minutes or until the edges look set;
Remove the cookies from the oven and let them cool for 30 minutes on a cooling rack;
To prepare the glaze, in a small bowl mix all ingredients until there are no lumps;
When the cookies are cool, drizzle the glaze on top pf them.