Brand Personality Design
Brand voice guidelines tell every writer, designer and AI tool how your company sounds. We build the principles, the vocabulary and the worked examples, then turn them into prompt-ready instructions your content team and your language models can follow on the day they are handed over. As a Dhaka-based company, we write and test every guide for international companies, with a strategist, a senior writer and a reviewer on each project and a first draft in two to three weeks, then keep it current after handover, not a one-off PDF.
One exit at each step. No retainer until you ask for one. Scoping is free. The diagnostic gives you a written verdict on how far your published content drifts from one voice. You can stop there, take the findings to another supplier, or move to the pilot. Nothing we write is licensed back to us.
You keep the verdict either way.
One call 01 Scope · free
5 working days 02 Diagnose · $99, credited to the pilot
2 weeks 03 Pilot · $1,200, one channel
4–6 weeks 04 Production · from $3,600
Monthly 05 Managed Ops · from $999 a month, optional
What is included in brand voice guidelines?
Brand voice guidelines are the written rules for how your company sounds on every channel: three to five voice principles built on your brand’s personality traits, a tone map for different situations, a word list of terms to use and avoid, rewritten before-and-after examples, and prompt files so AI tools produce copy in the same voice.
Voice principles
Three to five named principles, each with a plain rule, the reason behind it and one short line of copy showing the principle applied.
Tone map
One grid showing how the voice shifts across sales pages, support replies, error messages, social posts and apologies, with a sample sentence for each.
Brand language guidelines
A working word list: terms you own, terms you avoid, spelling and capitalisation rules, product naming, and the grammar decisions writers argue about weekly.
Brand messaging matrix
One page per audience holding the claim, the proof, the objection and the call to action, so campaign copy stops being rewritten from memory.
Before-and-after examples
Ten pieces of your own published copy rewritten in the new voice, side by side, so reviewers judge the change.
AI brand voice prompt files
System prompts, a style rule file and a short checklist your team pastes into the language models and writing tools they already run.
Not included: A production AI system or agent build, since this service delivers documents and prompt files · the monthly review of new and generated copy after handover, which is Managed Ops, optional and priced monthly · any retainer you have not asked for.
Where are tone of voice guidelines used every week?
Tone of voice guidelines earn their fee where copy is produced fastest. Most teams apply them first to the website, then to lifecycle email, support replies and AI-assisted drafts, because those four channels create most of the content a customer actually reads.
Website and landing pages
Headlines, sub-headings and calls to action rewritten against the principles before a page ships.
Lifecycle and sales email
Sequences checked so onboarding, renewal and win-back mail sound like one company, not four.
Support and product copy
Error messages, empty states and help replies carry the same tone even under pressure.
AI-assisted content
Prompt files keep generated drafts inside the voice, with a reviewer signing each batch.
How is one AI-drafted email checked against brand voice guidelines?
One AI-drafted email is checked against brand voice guidelines in five logged steps: the brief loads the voice prompt file, the draft is generated inside the tone map, the word list check flags banned terms, a reviewer signs or returns the batch, and approved copy is published. The brand voice example below shows the chart and the check.
The guide · brand voice chart
Abc Ltd · brand voice guidelinesFor writers and AI tools
We are · we are not
Clearnot blunt
Warmnot casual
Confidentnot loud
Helpfulnot pushy
Tone by channel · warmth
Sales pageconfident, specific
Support replywarm, patient
Error messageshort, plain
Apologywarmer, direct
Words to use
sign ininvoiceyour team
Words to avoid
world-classleveragesynergy
Applied · one renewal email, checked
Renewal email · batch of 12 draftsTone: warm, short
To: abc@xxx.com.bd · From: Abc Ltd
Your plan renews next month and nothing changes unless you ask. Our world-class support team is one reply away.
- 1Brief loaded with the voice prompt fileDone
- 2Draft generated inside the tone mapDone
- 3Word list check flags banned terms1 flag · world-class
- 4Reviewer signs or returns the batchA person signs
- 5Approved copy published and logged for reviewLogged
Managed Ops: a monthly review of new and generated copy updates the word list, the prompts and the examples.
Illustrative example. Yellow marks the step where a person signs; every AI-assisted batch is logged with its prompt, its output and the named reviewer.
How are brand voice guidelines developed, from scope to Managed Ops?
Brand voice guidelines are developed in five steps: we scope the channels, diagnose the drift in your published copy, pilot the guide on one channel, produce the full system with prompt files, then keep it current as products and campaigns change. There is one exit at each step.
01 Free
Scope A free call to list the channels, the writers, the tools and the decisions that keep being argued about, with no document requested yet.
02 5 working days
Diagnose We read your published copy across channels and return a written verdict on where the voice breaks and what to fix first.
03 2 weeks
Pilot One channel gets the draft principles, tone map and word list, applied to real copy, so the guide is tested on actual work.
04 4–6 weeks
Production The full system is written and handed over with a working session: principles, tone map, language rules, messaging matrix, examples and prompt files.
05 Monthly
Managed Ops A monthly review of new and generated copy against the guide, with updates to the word list, the prompts and the examples.
Who writes your verbal identity system?
Each project runs with a named strategist, a senior writer and a reviewer, plus an AI engineer who turns the finished rules into prompt files your tools can load.
Voice strategist Sets principles and the tone map
Senior writer Writes the rules, examples and rewrites
Reviewer Signs every batch against the guide
AI engineer Builds and tests the prompt files
Researcher Reads competitor, customer and support language
Account lead Runs the calls and the change log
Do you need a brand voice agency or a single guide?
Not every company needs a brand voice agency on retainer. Answer the five questions below and the panel returns a verdict: a one-off guide, a pilot on one channel, a full verbal identity system, or a monthly review of AI-assisted content.
1. How many people write customer-facing copy?
2. How much of your copy starts in an AI tool?
3. Do you have written voice rules today?
4. How many channels publish in a normal month?
5. Who signs copy off before it ships?
Which level do you need? Answer five questions.
Start with the diagnostic
Few writers and little AI drafting: buy the written verdict first, then decide after reading where your published copy actually breaks and what it costs.
How the verdict is decided
Most drafts start in an AI tool → add managed review
Mostly first options → start with the diagnostic
Mixed answers → a pilot on one channel
Mostly third options → the full verbal identity system
Why choose us to write your brand voice guidelines?
Most tone of voice services stop at a document; we treat brand voice guidelines as an operating file that writers and language models load the same way, with a monthly review that keeps both inside the voice. A named reviewer signs every AI-assisted batch, and personal data follows Article 28 of the General Data Protection Regulation (GDPR).
Without written voice rules
!!!!!
- The voice lives only inside one senior writer’s head today
- Every reviewer argues from personal taste instead of a written rule
- AI drafts read like a different company each week
- Campaign claims are rewritten from memory every single quarter
With the guide in place
Batch review · renewal emails
Drafts12Word list flags3 fixedToneWarm, shortReviewerSignedVerdictPublished
Illustrative example
- Written principles any new writer can apply on day one
- Reviews are settled against a rule, not personal opinion
- Prompt files keep generated drafts inside the agreed voice
- The messaging matrix is reused across every campaign brief
Is it safe to outsource brand voice guidelines offshore?
Outsourcing brand voice guidelines to an offshore team is safe when the controls are written down before any unpublished campaign, pricing line or customer research moves. As a Bangladesh-based company, we work under a non-disclosure agreement (NDA) and a processing agreement, on your own tools where you prefer, and every AI-assisted draft is logged and signed by a named reviewer. Reviewed By Eicra.com team
Which brand voice agreements are signed before any file moves?
NDA — signed before any unpublished campaign, research file or pricing document is shared with us.
Processing agreement — terms under Article 28(3) of the GDPR wherever personal data appears in your research files.
Access — named accounts only, with access removed within one working day of a person leaving.
Tools — we work inside your drive, your workspace and your writing tools where you prefer.
Logs — every AI-assisted batch is recorded with its prompt, its output and the named reviewer.
What brand voice controls, ownership and rework terms apply?
Ownership You own the guide, the examples, the prompt files and every source draft outright.
Personal fields Customer quotes are anonymised before they enter any prompt, example or published rule.
Named reviewer A person signs each batch, so no unreviewed generated copy ever reaches a customer.
Rework Written rework at no fee where delivered copy misses the rules we agreed.
Certifications Listed only when held; nothing is claimed on this page.
What proof do you get before you pay for brand voice guidelines?
Before you pay for brand voice guidelines, you get evidence instead of promises: a written diagnostic verdict on where your published copy breaks, a pilot tested on one channel of real copy before the full system is written, and a named reviewer on every AI-assisted batch. You can stop after any of them.
2–3 weeks
To a first voice guide draft, not months: the draft principles, tone map and word list.
Every batch
Of AI-assisted copy is signed by a named reviewer before it reaches a customer.
Every file
The guide, the examples and every prompt file are yours outright, in editable formats.
Case studies: client results with numbers are added here as clients give permission to name them.
What do buyers ask about brand voice guidelines?
How much do brand voice guidelines cost?
Brand voice guidelines with us are priced per step, not per hour, and each price is on the price cards at the top: a diagnostic that returns a written verdict on where your copy breaks, a pilot on one channel, the full system, and an optional monthly review of new and AI-assisted copy.
What should brand voice guidelines include for AI tools?
For AI tools, brand voice guidelines need machine-readable parts: a system prompt carrying the principles, a rule file of banned and preferred terms, worked before-and-after examples the model can imitate, and a reviewer checklist, because a document written only for humans cannot be loaded.
How do you create a brand voice?
Start with the brand personality framework: the traits and the point of view that justify each voice principle. Then read your published copy to find where the voice breaks, write three to five principles, a tone map and a word list, test them on one channel, and turn the result into examples and prompt files.
What is the difference between brand voice and tone of voice?
Voice is constant: the principles, vocabulary and point of view that stay the same everywhere. Tone shifts with the situation, so the same voice sounds warmer in an apology and shorter in an error message. The tone map records both in one grid.
Can AI tools follow tone of voice guidelines accurately?
Partly. Language models follow explicit rules and imitate examples well, and they drift on judgement calls such as humour or a sensitive apology. That is why every batch is checked by a named reviewer against the same rules before the copy is published.
Get a written verdict on where your brand voice breaks.