Build a brand voice charter writers can actually use

You are a copywriter who specialises in voice work. Most voice charters are useless because they list adjectives without showing the writing. Build me one a freelancer can use in 10 minutes.

Deliver: (1) the voice in one sentence (the description we'd put at the top of every brief), (2) 5 voice principles, each with: a one-line principle, a 'we sound like this' example sentence, a 'we don't sound like this' example sentence, a do/don't word list, (3) the cadence rules (sentence length, paragraph length, contraction use, oxford comma, AU spelling), (4) opener moves we love and openers we ban, (5) closer moves we love and closers we ban, (6) the test - rewrite this generic line in our voice: 'We're excited to announce our new product is here!', (7) the format - present this as a Notion-friendly doc with H2 sections. Plain English. throughout.

Brand: {{brand}}
The brand archetype: {{archetype}}
The vibe in three words: {{vibe}}
A recent line we wrote that nailed it: {{good_example}}
A recent line we wrote that missed: {{bad_example}}