Tonekeep
Explore the example

Brand review for marketing teams & agencies

Different drafts.
The same
brand voice.

Tonekeep is a tool for reviewing content against individual brand guidelines. Take a closer look at tone and unsupported claims before a draft goes to your client.

Explore the example See the review process

A sample walkthrough. No account needed.

Yeoul Skin · fictional brandExample review

DRAFT TO REVIEW

One cream.
Every skin concern solved!

A claim beyond the product facts

The supplied product notes do not support this guarantee.

A SUGGESTION BASED ON THE GUIDELINES

A lightweight layer of everyday moisture.
Meet the Yeoul Skin moisturizer.

Keep the guidelines closeBrand voice · Product facts · Approved copy
01A separate standard for every brand02Edits with an explanation03People make the final call

A SECOND LOOK, ON BRAND

Not just correct.
Right for the brand.

A sentence can read well and still feel wrong for a brand. Start with three practical checks.

01 /

A consistent voice

Warm and casual, or calm and professional? Compare the tone of each draft with the brand’s own standards.

“Get it. Now!” → “Try it when you’re ready.”
02 /

Claims with a basis

Spot promises that go beyond the supplied product information, and flag statements that need verification.

“100% satisfaction for everyone” → Check the evidence
03 /

The details that matter

Dates, eligible products and conditions. Check whether a campaign gives readers the information they need.

“Everything is on sale” → Check dates and exclusions

A THOUGHTFUL WORKFLOW

Your team’s standards.
Your team’s decision.

We’re building a product where an approved review can inform the next one.

  1. 01

    Bring the brand into focus

    Gather the voice guidelines, writing rules, product facts and approved examples.

  2. 02

    Review with a reason

    See which sentence may not fit, why it was flagged, and how it could change.

  3. 03

    Decide, then refine

    The intended workflow uses reviewer-approved edits as reference material for later reviews.

This describes the product direction. Today’s walkthrough uses fixed examples and does not save changes.

SMALL EDITS. A CLEARER VOICE.

The same message.
More like your brand.

Meet Modework, a fictional work app. Its writing guidelines call for clear, calm and professional language.

BEFORE
Crush that calendar chaos!
Get your crew’s stuff in one place.

The slang and forceful tone do not match the brand’s guidelines.

SUGGESTED EDIT
Manage your team’s schedule in one place.
See work in progress at a glance.

The benefits stay clear, with a consistent professional tone.

An illustrative example, not a customer case study or a live AI result.

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Better decisions
by the people who know the brand.

Tonekeep started with marketing teams and agencies who write for more than one brand. Our goal is to reduce repetitive review work and make the reasons behind an edit easier to understand.

A FEW GOOD QUESTIONS

Questions

What is Tonekeep?

Tonekeep is an early product for reviewing content against a brand’s voice, writing rules and product information, and suggesting edits. It focuses on brand-specific review workflows for marketing teams and agencies.

What can I do in the walkthrough?

Choose a fictional brand, read the review notes, and apply or copy prepared suggestions. The sample is not connected to the Claude API and does not analyze real drafts.

How will Tonekeep use Claude?

We plan to evaluate the Claude API for comparing draft context with brand guidelines and suggesting edits with explanations. The current walkthrough demonstrates that process with fixed examples.

Does it automatically learn from my edits?

The current sample does not save or learn from edits. We plan to use reviewer-approved examples as reference material in later reviews. This does not mean automatically retraining the underlying model.

What about pricing and team accounts?

The current walkthrough is free and does not need an account. We are considering team subscriptions based on brand count and review volume. Pricing and a launch date have not been finalized.

KEEP YOUR VOICE. KEEP IT CLEAR.

What makes a draft
sound like your brand?

Take a short look at the Tonekeep review process.

Explore the example