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(Example) Codex 2 outputs

Codex with Rainbrand for Son of a Tailor (opens in a new tab).

The test

We asked Codex to help someone choose a Son of a Tailor T-shirt, then care for it.

The setup

Codex could use the Rainbrand MCP (opens in a new tab), and added Son of a Tailor’s brand from sonofatailor.com (opens in a new tab).

Prompt

Use Son of a Tailor’s brand to make two useful pieces for its Cotton T-Shirt: a responsive editorial guide to choosing between 150 and 200 g/m², and a two-sided A6 care insert to keep after delivery. Use its real imagery, material facts, typography and understated voice. Label both as independent concepts. Request focused Briefs, then review every rendered asset twice and save the evidence.

Son of a Tailor’s homepage: a man wearing a cream T-shirt beside the Cashmere Collection headline. (opens sonofatailor.com in a new tab)

How Codex made it

From the brand to a guide and a care insert, in four steps.

  1. Brand
  2. Brief
  3. Outputs
  4. Review

Brand

Read the docs (opens in a new tab)

Rainbrand turns a brand’s identity, guidance and files into shared context that agents can use.
Codex added Son of a Tailor’s brand from sonofatailor.com (opens in a new tab).

Brief

Read the docs (opens in a new tab)

A Brief is focused brand guidance and files for one task.
Codex requested a Brief for each piece: the guide and the insert.

Outputs

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The two pieces Codex made with its Briefs, in HTML and CSS with the brand’s own photographs and fonts.
Both are independent concepts, not commissioned or endorsed by Son of a Tailor.

Cotton guideA web page that helps shoppers choose between the T-shirt’s two fabric weights and find their size.
The cotton guide on desktop: A T-Shirt, considered, beside a white T-shirt hanging from a wooden peg; a comparison of 150 and 200 g/m² Supima cotton; then custom sizing and 24 pre-engineered sizes. (opens in a new tab)
The cotton guide on a phone, with the comparison and the sizing options stacked. (opens in a new tab)
Open page (opens in a new tab)
Care insertA printed card packed with the T-shirt, with how to wash, dry and iron it.
Front of the care insert: the SON icon, Care, kept close, and a white T-shirt hanging from a wooden peg. (opens full size in a new tab)Back of the insert: keep colors separate, wash gently at 40°C, skip fabric softener, let it air dry, iron lightly. (opens full size in a new tab)
Open PDF (opens in a new tab)

Review

Read the docs (opens in a new tab)

A Rainbrand Review checks an asset against the brand.
Codex asked for two Reviews of every asset. Both rounds passed every applicable check, with no changes between them.

Cotton guide PassHelp choosing a T-shirt fabric.
CopyPass
Two weights. The same 100% Supima cotton. A choice worth taking a moment over.
  • WordingMatches exactlyMatches
  • SpellingCorrectMatches
  • VoiceCalm, refinedMatches
Review comment
“All text is spelled correctly and accurately presents the material guide in Son of a Tailor's calm, refined brand voice.”
TypographyPass
  • A T-Shirt, considered.
    FontOatmeal Pro 600Matches
  • The feel of a T-shirt starts with the fabric.
    FontIvy Ora Text 400Matches
Review comment
“Headlines are set in Oatmeal Pro 600 and the body copy uses Ivy Ora Text 400, matching brand specifications.”
Care insert PassA care card packed with the T-shirt.
LogoPass
Brand logo (opens in a new tab)
Son of a Tailor’s SON icon, from the brand.
Observed (opens in a new tab)
The SON icon on the care insert.

Compare the square badge outlines

The brand logo reduced to its black shape.The mark extracted from the artwork, reduced to its black shape and lined up with the brand logo.

Line up and overlap

The aligned logos overlaid: matching parts are black, brand-only parts are blue, and artwork-only parts are pink.Open the overlap image in a new tab.
  • Matching parts
  • Brand only
  • Observed only
Review comment
“The primary SON brand logo is unaltered, crisp, and clearly visible against the card's clean white background.”
TypographyPass
  • For the next wear.
    FontIvy Ora DisplayMatches
  • Keep colors separate.
    FontOatmeal ProMatches
  • Wash light and dark colors apart.
    FontIvy Ora TextMatches
Review comment
“Body text matches Ivy Ora Text, step titles match Oatmeal Pro, and the main heading is set in Ivy Ora Display.”
ColourPass
  • BackgroundObserved #FFFFFFApproved #FFFFFFMatches
  • LogoObserved #000000Approved #000000Matches
Review comment
“The white card background and black logo mark match brand colors. The thin divider lines blend into the background and were not measured.”

Try it yourself.

Add Rainbrand to the agent you already use.

Read the docs

  1. Open the Rainbrand plugin and add it.

    Open Rainbrand plugin (opens in a new tab)

  2. Connect your Rainbrand account when asked. It works in ChatGPT and in Codex.

Rainbrand turns your Identity, Guidance and files into shared Context that agents and products can use.

Get startedRead the docs