Agent Skills: ring:writing-dev-reports

Writing a structured markdown dev report for a completed development epic: reads accumulated epic metrics (TDD, coverage, delivery, lint, file-size, license), computes a quality score with tiers, and records root-cause and next-cycle improvements. Use after an epic completes in ring:running-dev-cycle or when asked for a development feedback report. Skip for documentation-only epics or outside a dev cycle.