Write a brief an agent can compile
The difference between a 45 and an 82 is four sentences.
- steps
- 6
- roughly
- About ten minutes
- things needed first
- 4
What you need first
- A clear idea of who you want to reach, in your own words rather than in segment names
- What you sell and what the specific offer is
- A budget and a flight, even approximate
- The geography, named as UK cities or postcode districts
6 steps
Every step carries the thing that goes wrong at it, in its own block. That is the part worth reading.
- step 01
Describe the person, not the segment
Write who you want to reach in plain English: sector, seniority, what they do, where they are. The language model extracts semantics from this; it never picks a vendor segment identifier, because deterministic registry tables do that by matching your terms against catalogue keywords.
what goes wrong hereDo not write segment names you have seen in a DSP. They will be matched as text and will usually score worse than the plain description would have.
- step 02
Name the geography in mappable terms
Use UK cities or postcode districts. The compiler resolves cities to postcode districts and to BARB television regions through an explicit table.
what goes wrong hereA city the geography table cannot map costs fifteen points on every channel, and the rationale names the city. If you need somewhere unusual, say so in the session rather than hoping.
- step 03
Add what you sell and what the offer is
This is the single highest-value addition. It is what moves paid search from a persona-label fallback at 45 to an interest-to-query projection at 68.
what goes wrong hereWithout it the search plan is explicitly marked as not activation-ready, which is the compiler telling you it has not got enough to work with.
- step 04
Add intent topics if you have them
The actual phrases your buyers type when they are looking for what you sell. These become plain-language seeds that the provider's own keyword planner resolves into ideas with volume and bid data.
what goes wrong hereThis takes search from 68 to 82. Interests are not intent: 'interested in cybersecurity' and 'searching for endpoint protection pricing' score differently and should.
- step 05
State exclusions
Anything you do not want to reach or appear beside. Exclusions veto overlapping catalogue entries and are reported separately per channel.
what goes wrong hereWhere a channel cannot express your exclusion natively, the plan says so rather than silently dropping it. Social exclusions in particular are not compiled into audience identifiers.
- step 06
Read the seven fidelity scores before the budget
The compiled plan returns a score and a written rationale per channel. Read the rationales: they say what matched, what did not, and what would improve it.
what goes wrong hereIf a channel scores lower than you expected, the rationale usually names the missing input rather than a limitation of the channel.
A persona that compiles at the top of each channel's available band, with rationales that tell you what any remaining gap is caused by.
What else you might need to do
45 minutes. Bring a real brief and we compile it live.
Talk it throughQuestions
Does a longer brief always score better?
No. Four of the seven channels carry the same score whatever audience detail you add — audio 65, addressable TV 55, DOOH 50 and cinema 40 — because their targeting vocabulary cannot express more than that however good the input. The one line of a brief that does move them is geography: naming a city the UK table cannot map costs fifteen points on every channel, floored at ten. Only CTV, search and social move, and they move on specific inputs rather than on length: marketplace segment matches for CTV, intent topics for search, interest terms for social.