Your brand guide,
enforced the moment
an agent writes it.

stylist checks HTML, Markdown, Word, PowerPoint, SVG, and images against your house style the instant they're generated, and blocks the ones that don't fit.

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Tone check

ACME is the world's most revolutionary product!!!

ADVISORYtoo boastful, see brand voice guide

$ stylist check email.html

After the agent rewrites

ACME helps your team ship faster.

✓ PASSconfident and helpful, matches the voice guide

$ stylist check email.html

What it catches

Five checks, one verdict.

Colors & fonts

Catches off-brand colors and fonts, even inside generated PowerPoint and Word themes.

Banned & required terms

Our pricing is finally cheap for everyone.

✕ FAILuse "affordable"

Catches banned words and phrases anywhere in the text, and explains why each one isn't allowed.

Outdated brand elements

Catches old logos even when they've been resized, recompressed, or renamed, not just exact copies.

Tone & voice

"Dear Valued Customer, we are writing to inform you"

ADVISORYtoo formal for an email

AI compares the tone against examples of your own good and bad writing, with different rules for different document types and audiences.

Required logo, in place

landing-page-final-v2.html

✨ Brandly

✕ FAILno real logo in the header

getstylist.dev

stylist

✓ PASSlogo present, top-left

$ stylist check -ruleset rules/brand.yaml page.html

Checks that the logo actually sits in the page header, not just somewhere in the file. Word documents get the same header check; PowerPoint gets a stricter one, reading the exact corner straight from the slide's own geometry.

What you see

A verdict, not a lecture.

$ stylist check -ruleset rules/brand.yaml page.html

FAIL  page.html  (ruleset: acme-brand-v1)
  page.html:5   [colors] color #ff4136 is not in the allowed brand palette
  page.html:10  [terms] banned term "cheap" found: use "affordable"

CI-friendly exit codes: 0 = pass, 1 = violations found, 2 = error.

Where it runs

Catch it before it ships, not after.

git pre-commit

checks your changes before the commit lands

Agent hooks

Claude Code, Codex: the agent fixes its own output right after writing

CI / CLI

stylist check dir/, the last check before anything ships

core checker

embedded, or a central API server

dashboard

every check, tracked over time

How you run it

One tool. Your call where it lives.

Self-host

A single static binary, no runtime dependencies. Cross-compiled for every platform, or run the distroless Docker image in your own VPC. Nothing calls home.

Getting started

Hosted

We run it. You connect your tools, and we handle the rest. Onboarding is admin-assisted today: tell us what you're checking and we'll set you up with a ruleset and an API key.

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Get started

Tell us about your setup.