Creating problems

Use when creating a competitive programming problem end to end — from an idea, finished or half-formed, to a Polygon-ready package with a statement, tests, a model solution, and machine-readable evidence the package is ready to ship. Triggers on create a problem, prepare a full problem package, set a problem end to end, take this idea to a Polygon package, run the whole problem-setting pipeline. This is the umbrella over shaping-problems, preparing-tests, validating-solutions, writing-statements, and reviewing-problems: whenever a request spans two of those five — "build this from scratch", "take this idea all the way through" — this skill is the answer, not any one sibli…