Converts a product requirements document into a reviewed set of GitHub issues: end-to-end increments sized for one pull request, each with checkable acceptance criteria, traced back to the PRD's requirements and linked as sub-issues with blocked-by relationships. Use when the user says "break this PRD into issues", "create tickets from the PRD", "turn the spec into a backlog", "split this feature into work items", or asks which parts of a PRD can be built in parallel.