Freemix is a group of useful free scripts for Glyphs. This pack includes the following scripts: Delete all hints, Expand Kerning, Insert Glyph to Background, Insert Glyph, Mask to Master, Paste Background, Remove Backup Layers, Symmetrify, Round Kerning.
DrawBot is an application to write simple Python scripts and generate two-dimensional graphics. They support rectangles, ovals, bezier paths, polygons, text objects and transparency. This plugin allows you to use Drawbot inside Glyphs.