Writing voice calibration from studied authors. Accepts combinatorial voice arguments to blend multiple writer influences. TRIGGER when: user invokes "/writing-voice" or asks to "write like", "in the style of", "voice of", "blend voices", or references a specific writer influence for their prose. Also when user asks to review writing for voice/tone/style quality. DO NOT TRIGGER when: user asks to humanize existing text (use humanize skill), write code, generate commit messages, or produce technical documentation where voice is irrelevant.
