Fixes two sentence-rhythm tells that mark prose as AI-generated. Two targets behind one skill, picked via the --target arg. fragment-chain (three or more short sentences back-to-back) and uniform-length (two or more consecutive sentences within ~2 words of each other, especially with parallel structure). Use when the user says "reads like AI," "too choppy," "same length sentences back to back," "staccato," "fragments piled up," "rhythm is off," "uniform pacing." Pass --target fragment-chain|uniform-length|all (default all).
