Warm. Clear. Confident. Many brand documents stop there. Then one writer produces a playful apology and another writes a product announcement that sounds like a legal notice. The adjectives did not tell either person what to do.
A more usable reference starts with a few messages your team actually needs to write. Show the choices in context, explain why they help and leave room for judgement. A short collection of examples is easier to apply than a page of personality traits.
Choose moments with different emotional demands
Gather an introduction, an instruction, a delay notice and a correction. Remove private customer details before using any existing message in a shared document. If you invent examples, label them so nobody later mistakes them for a real complaint.
Mailchimp’s public style guide distinguishes a relatively consistent voice from a tone that changes with the situation and the reader’s state of mind. That distinction is useful beyond its particular brand: a recognisable voice does not require the same mood in every message.
Edit one message in front of the team
Consider this fictional delivery update: “Oops! Your amazing order is taking a little adventure.” It attempts friendliness while leaving the reader without useful information. A more helpful draft might say: “Your parcel has been delayed. We are checking the delivery date and will update you by Thursday.”
That second version works only if the update commitment is true. If the team cannot promise Thursday, it needs a different statement. Voice should not disguise an uncertain operational answer. Put the fact check beside the wording review.
Turn the edit into a principle
Instead of writing “be human,” record the actual decision: in a service problem, explain what happened, what the reader needs to do and when more information is expected. Remove jokes that make the inconvenience sound trivial.
For an introduction, the principle might be different. Start with the reader’s task before describing the company’s ambition. For an instruction, lead with the action and place any necessary condition nearby. These are editorial choices that a new writer can recognise and repeat.
Keep the reference small and searchable
Give each example a short situation label, the original, the revised version and a sentence explaining the change. Store approved product names and spelling decisions separately so they do not bury the voice examples. Add an owner and review date to the document.
A useful test is to give a colleague a fresh message and ask them to use the reference without your explanation. Notice which examples they consult and where they still hesitate. Revise the document at that point instead of adding another abstract adjective.
Over time, keep examples that settle recurring questions and retire ones that no longer fit the service. The aim is recognisable, useful communication across different situations. Readers should understand what you mean without having to admire how the sentence was written.
Related reading: A One-Page Creative Brief That Gives a Designer Somewhere to Start.