guide · updated 2026-09-28

How to brief a design agency

Bad briefs don't fail loudly; they cost a revision round each. Write the brief before you talk to anyone — it's how you find out what you actually want.

The ten fields

Field	What to write
1. What the company does	One sentence a stranger understands
2. Who this is for	The buyer and the user, if different
3. The metric to move	Demo requests, activation, signup rate — one number
4. Scope	Pages or screens, in a list; what's explicitly out
5. Constraints	Brand rules, platform, engineering handoff, accessibility
6. References — with reasons	'Linear's pricing page because the tiers are scannable', not a mood board
7. Content status	What exists, who writes the rest, by when
8. Deadline and why	A raise, a launch, a Demo Day — the reason sets the trade-offs
9. Budget range	Published ranges exist; hiding yours wastes both sides' week
10. Decision-maker	One name. Approvals are the main source of overrun

Template

Company: ___ does ___ for ___.
Audience: buyer ___ / user ___.
Metric: move ___ from ___ to ___ by ___.
Scope: [list]. Out of scope: [list].
Constraints: platform ___, brand ___, handoff to ___.
References: ___ because ___ (×3).
Content: exists ___; to write ___ by ___ (owner ___).
Deadline: ___ because ___.
Budget: $___–___.
Decision-maker: ___. Reviewers: ___.

What agencies do with it

A good studio reads the metric and the deadline first, then argues with the scope. If a proposal comes back that simply mirrors your list, you've hired a vendor, not a partner.

Mistakes that add weeks

References without reasons: the designer copies the surface, not the idea
"We'll know it when we see it": you'll see it three times
Copy "coming soon": design waits or gets redone
Five reviewers, no decider

Questions

How detailed should a design brief be?

One page. Ten fields, each a sentence or a list. Longer briefs get skimmed.

Should I share the budget?

Yes, as a range. Studios scope to the range; without it you get either a lowball or a Rolls-Royce.

Do I need a brief for a subscription?

A shorter one per request: goal, format, deadline, reference with a reason.

What if I don't know the metric?

Then the project isn't ready. Pick the one number the site or product exists to move.

Sources

Prices checked 2026-09-28. Vendor prices change; treat ranges as of that date.

Building something people should remember?

non boring.gg is a product and brand design studio in Bangalore, India, working with startups and tech companies across the US, Europe and Australia. Average engagement around $20,000. atul@nonboring.gg