Guides users through the V-Model workflow: takes stock of the current project state, recommends the next phase skill, audits handoff entries for completeness, and runs the Closing Handoff after a successful security audit. The guide does not perform CRUD work on artifacts; every concrete change lives in the phase skill it dispatches to. TRIGGER when the user asks "where do I start", "what comes next", "I am lost in the workflow", "which phase fits", "wo bin ich gerade", "wo soll ich anfangen", "was kommt jetzt", or explicitly requests the V-Model overview or end-to-end orientation. DO NOT trigger for individual phase work (use the specific phase skill instead: business-analysis, requirements-engineering, architecture, coding, testing, security-audit), generic mentions of "workflow", "process", or "next step" inside an already-running phase skill, or when a phase skill is already active.