Game design and general RPG development: planning, mapping, writing, eventing, filling the database, etc.
Specialisation in RPG Maker engine.
The things I cannot provide when it comes to development are: coding, resource creation (art/music) and complicated systems.
My strengths are mapping and characterisation/dialog.
Mapping:
Mapping from the editor or off other software if provided, though that will need to include extra time to learn the software.
Assembling custom tilesets and editing existing tiles.
Level design and simple puzzles.