Skill C

The description is pretty minimal, so you're mostly working off the integration pattern here. It's the kind of connector piece that probably orchestrates something between two other steps in test-project. Without more context on what task C actually involves, it's hard to say how much logic lives here versus just passing data through. If you're already using skill-a and skill-b, this is likely the glue you need. Otherwise, you'll want to understand the full chain before pulling it in.