One clarifying question, not three

Answer a thin brief with one question and a stated plan, not a list of questions. Most buyers cannot describe what they want because they have never bought this before, and treating their vagueness as a problem to be solved by questioning is the fastest way to lose the job to whoever replied with a plan.

The working rule is one question, and everything else stated as a default you will proceed on unless told otherwise.

Why three questions loses the booking

Each question you send is a decision you have handed back to someone who does not want to make it.

A buyer who has to answer three questions before anything happens experiences the purchase as work. They also, in the gap between your message and their reply, keep browsing. Reply speed is one of the few advantages available to a new earner - the case for it is in the post on responding fast without living online - and a multi-question reply throws it away, because the clock restarts on their answer rather than yours.

There is a second cost that is less obvious. Questions signal that you do not have a standard way of working. A buyer reading "what length would you like, what format, what should I focus on, and how soon do you need it" is looking at someone who has no default, which reads as inexperience regardless of how thorough it looks.

The one question worth asking

Ask about the thing that would make you produce the wrong deliverable, not the thing that would make you produce a slightly different one.

There is usually exactly one of these, and it is almost always purpose. Why they want it, or what they intend to do with the result, determines tone, emphasis and length simultaneously. Length, turnaround and structure are all things you can set yourself.

Concretely, the question that earns its place is some version of "so I pitch this right - is this for your own read, or are you showing it to someone?" One sentence, no list, and it can be answered in four words.

Everything else becomes an assumption you announce.

Stating defaults instead of asking

The move is to reply with a plan and an escape hatch.

"Here is what I will send unless you say otherwise: around 400 words, four headed sections, with a score on each, back to you tomorrow evening."

This does three jobs at once. It answers the buyer's actual question, which is what am I getting. It converts every open variable into a decision already made, so they can accept by saying nothing. And it becomes the scope of record, which is the part that matters in three weeks - the reasoning is in the two-sentence confirmation, and a stated default is a confirmation that arrived before the job started. Processors think about it the same way: Stripe's dispute guidance tells businesses to keep a record of all communication with the customer, because it provides evidence.

Defaults worth having ready and never asking about:

When a brief is thin because it is wrong

Some thin briefs are not underspecified, they are outside what you do.

A three-word brief that implies medical interpretation, a request that would need material you do not accept, or a job that is really a different service in disguise - these are not clarification problems. Decline them in a sentence, quickly, and without a counter-offer unless you genuinely have one. How to decline politely and fast covers the wording, and the speed matters as much as the wording: a buyer told no in ten minutes frequently comes back with something you do want.

The other failure case is the brief that is thin because the buyer is testing whether you are a real person. That one is answered by replying like a person, in your own words, with a plan.

What the thinness usually conceals

Most short briefs are hiding the same thing: the buyer wants reassurance and is embarrassed to say so, or wants candour and is worried you will be polite.

You cannot resolve that by asking, because the honest answer is socially difficult to give. You resolve it by stating in your reply that the assessment will be direct and specific, and letting them redirect you if that is not what they were after. Naming it removes the awkwardness from their side.

Buyer-side accounts of how a commission normally opens are useful here, because they describe what the buyer thinks a brief is supposed to contain - the etiquette of commissioning someone is the short version, and it explains why so many briefs arrive as one line.

Where the brief is thin about the material rather than the ask - unclear what was submitted, or submitted badly - the constraint is technical rather than editorial, and how photo conditions limit what can be assessed sets out what is and is not recoverable. If the ask involves precise figures, the measurement conventions belong to the site that documents method rather than to a judgement call in your reply.

For the platform version of how briefs arrive and what fields a buyer is prompted to fill, Rate Cock's judges page is the reference, and it explains why some briefs are thin by design rather than by neglect.