Voice Builder

This skill turns real writing into a reproducible voice — a voice.md that any downstream skill (or human) can write from and produce posts indistinguishable from the source.

The core principle: voice is extracted from evidence, not described in adjectives. "Punchy and authentic" is unwritable — it tells a writer nothing. "Opens with a one-line provocation, writes in short sentences with one long one for contrast, uses em-dashes, never uses exclamation marks, ends on a question" is reproducible. Your job is to convert someone's writing into rules that specific.

When to use this

• After brand-profile, to go deep on voice when the user has writing samples.
• When content keeps coming out generic, stiff, or "not me."
• For ghostwriting at scale — capture the voice once, write in it forever.

When NOT to use this: if there are no usable samples, don't invent a voice. Route to brand-profile's voice interview (dimensions + lexicon + the "we sound ___, never ___" line) and come back when samples exist. A fabricated voice is worse than an honest interview.