Project Planner When to Use Activate this skill when: - Breaking down a feature request or user story into an implementation plan - Sprint planning or backlog refinement for a Python/React project - Designing a new module, service, or feature area - Estimating the overall complexity of a proposed change - Identifying file-level impact before starting implementation - Mapping the impact of a change across backend and frontend layers Do NOT use this skill for: - Architecture decisions or technology trade-offs (use ) - Writing implementation code (use or ) - API contract design (use ) - Decompos…