Guide a collaborative discussion that produces a specification document at .turbo/specs/<slug>.md. Use when the user asks to \"draft a spec\", \"create a spec\", \"write a spec\", \"discuss a project plan\", \"spec out a project\", \"design a system\", \"let's plan this project\", \"help me scope th
Guide a collaborative discussion that produces a specification document at .turbo/specs/<slug>.md. Use when the user asks to \"draft a spec\", \"create a spec\", \"write a spec\", \"discuss a project plan\", \"spec out a project\", \"design a system\", \"let's plan this project\", \"help me scope this\", \"architect a solution\", or \"let's discuss before building\".