Skill Simplify

Cut a SKILL.md down to size without changing what it does. The safety net is a count-based integrity check: every functional element present before the edit must still be present after, or the change reverts.

The gate is heuristic, not a parser. Both the before and after inventories are extracted by reading and counting, so a mis-count in either phase can pass a lost element (false PASS) or revert a safe edit (false FAIL). A PASS means the two manual counts agreed, not that a machine proved equivalence. Spot-check the diff on a high-stakes skill.

Run three phases in order. Each phase has a detail file you read on demand, not up front: