Help/Recipes/Brand or content lead

Brand voice check

Against your rules, with citations.

For: A brand or content lead, or anyone about to send words out under the team's name
When: Before anything goes out: a post, an email, a page, a client update
Takes: About a minute of agent time
You get: A verdict, each problem line with the rule it breaks and a rewrite, and what already works. The draft is left alone

The prompt

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Check <draft, or a link to it> against our brand in onecell before it
goes out.

1. Find the rules: search onecell for our brand brief, voice, vocabulary
   and any "do not claim" lists (in <cell> if I name one). Read them, and
   cite each rule you use as cell · heading · passage.

2. Go through the draft line by line. Flag:
   - claims about things that are not live for the reader yet
   - banned words and wrong nouns
   - breaks in voice: hype, exclamation marks, filler
   - lines that could sell a competitor just as well

3. Write "Voice check: <draft title>" in <cell> (dry run first): a
   one-line verdict, then a table of line, problem, cited rule and a
   suggested rewrite, then what already works. Don't edit the draft.

4. Reply with the verdict and the one change that matters most.

What your agent does

Finds your team's rules
The brief, vocabulary and claim limits your team already keeps in onecell. No generic style guide.
Reads the draft line by line
Claims, words, voice, and lines that could belong to anyone.
Cites every rule
Each flag points to the passage it comes from, so a writer can check it rather than argue with it.
Leaves the draft alone
The check is its own document. The writer decides what to change.

What you get back

Open the full example →

A check of a newsletter for Tally, a made-up invoicing app, against its made-up brand rules. It caught a promise the product can't keep.

Sample voice check: the Tally autumn newsletter

Verdict

Close. One claim breaks a rule and has to change before sending; two lines drift from the voice. The rest sounds like Tally.

Lines to change

Line in the draft	Rule	Rewrite
“Never chase a late payment again.”	Claims · No absolute promises: reminders reduce chasing, they don't end it	“Let Tally do the chasing.”
“We're super excited to announce…”	Voice · Say what it does, not how we feel	“Your clients can now pay in parts.”
“leverage partial payments”	Vocabulary · Say: use, take. Avoid: leverage	“take part payments”

Already working

Opens with the freelancer's problem, not the feature (Voice · Start with them).
Prices are written in full, with tax stated (Claims · Money is exact).
One call to action, at the end.

.md for agents

Variations

No brand rules yet

Ask first: “Read our five best published pieces and draft a short voice guide: what we say, what we never say, and example lines.” Review it, publish it in a marketing cell, and every later check has something to cite.

Checking a client's brand, not yours

Keep each client's brief in their cell and name it: “Check against the rules in <client cell> only.” The agent will not mix one client's voice into another's.

Fix it as well

Add: “Then write a corrected version below the check, changing only the flagged lines.” You still see every change against its rule.

Tips

The claim check matters most: a word in the wrong voice is embarrassing, a claim that isn't true is worse.
Keep “do not claim” lists current. When a feature is fully rolled out, take it off the list.
A rule with no citation is an opinion. Ask the agent to drop flags it cannot source.