Brand voice guide builder

Analyse the voice in these writing samples from {{brand}}.
Audience: {{audience}}

Samples:
{{samples}}

Describe: sentence length and rhythm, vocabulary (simple or technical, words used often), formality, humour, how they address the reader, use of questions, how claims are made (bold or careful), and punctuation habits. Quote examples for each observation.

Write a brand voice guide based on that analysis.

Include:
1. Voice in one sentence.
2. Four traits written as "X, not Y", each with a short explanation, a "do" example and a "don't" example.
3. Words and phrases we use; words we avoid. Also avoid: {{avoid}}
4. How tone flexes by situation: marketing, support reply, error message, apology, social post (one example line each).
5. Grammar and style choices (e.g. contractions, sentence case, Oxford comma).
6. A 100-word "voice prompt block" for pasting into AI tools.