Your client just hired your freelancer
The clause you're about to add is a fence. Your positioning is the reason they climbed it.
You find out on LinkedIn. Of course you do. "Thrilled to be joining the team at [your client] as Head of Retention." The face in the photo is your Klaviyo freelancer. The one you found and trained, who's been sat in front of that client for eighteen months at a margin you were quite pleased with.
You do the maths on the lost revenue. Then the slower, worse maths on how many other clients know your freelancers by first name. Eventually you ring someone who charges by the hour and ask about non-solicitation clauses.
I hear this story more than almost any other from agency owners. Different names, same LinkedIn post. It always ends the same way too, with a new clause in the contract. Which is sensible, and also an admission.
What the client actually did
Strip the emotion out and your client did a sum. Your day rate, minus the freelancer's day rate, equals a number. Then they asked what they were getting for it.
If the answer was "a person", they bought the person. The clause stops them doing it again, but it doesn't fix the sum.
The uncomfortable bit is that your client didn't steal your freelancer. They bought the thing they believed they were paying for, at a better price. They'd been told, by you, for eighteen months, that what they were paying for was Klaviyo flows. So when the person who builds the Klaviyo flows became available, they behaved like a rational adult.
So the useful question is why they believed that, not how to stop them.
Positioning is the gap between the two numbers
Your positioning is whatever fills the space between what the freelancer costs and what you charge. If nothing fills it, the client can see straight through to the other side, and eventually one of them walks across.
"We build Klaviyo flows for Shopify brands" fills nothing. That's a job title, and job titles can be hired.
"We turn retention into a revenue line for mid-market fashion brands, and here's how we think about it, in public, every fortnight" fills quite a lot. Now the person building the flows is one part of a method, and the method is what you're selling. You can hire the drummer. You still haven't got the band.
Clients tell Setup's annual survey that they leave agencies over a lack of strategic approach and the agency not understanding their business. What the client couldn't get by hiring her directly was the strategy and the understanding. If they hired her anyway, they'd never seen either from you. Probably not because it wasn't there. You just never showed it.
Your marketing department is your comms department
Big companies have a comms team. Their whole job is to make sure the people inside the building believe the story the people outside are being told. Staff and customers hearing the same story, on purpose.
You can't afford one. Fine. But you already have a marketing department, and the mistake almost every agency makes is pointing it in one direction. Outward, at strangers who might buy this quarter.
Every piece of marketing you put out is read by three audiences. The people you want. The people you've already got. And the people who work with you: freelancers, partners, consultants, the platform rep who sends you referrals, and the freelancer who's about to get a DM from your client.
Most agencies write for the first group and forget the other two exist. Which is mad, because one of those groups is paying you and the other is doing the work.
What it does for the clients you've already got
Between monthly reports, your marketing is the only thing reminding a client why they hired you. The report says what you did. Your marketing says what you think, and what you'd do about the thing that's about to go wrong for them.
A client who reads your point of view every fortnight doesn't do the sum, because the sum doesn't cover the thinking. They've watched you be right about something before it happened. They've forwarded one of your pieces to their MD. Somewhere along the way they stopped paying for flows and started paying for whoever decided which flows.
A client who only ever hears from you through a Google Sheet and a Zoom on the last Thursday of the month is doing the sum every single day. They just haven't told you yet.
And for the money you're leaving on the table
The most expensive sentence in agency life is "I didn't know you did that."
You've had the client for three years. You run events now, and you've got an AI workflow offering that's probably the best thing you do. And the client finds out about all of it from a competitor's case study, or from your LinkedIn six months after they've hired someone else to do it.
Your marketing should be how your existing clients discover what else you sell. Not a sales deck at renewal. Something they read because it's interesting, that happens to show work they didn't know you did. Nobody would call that lead gen. It's an upsell that costs you nothing and doesn't feel like one to either side.
And for everyone who works with you
The freelancer took the job because the only thing connecting her to your agency was an invoice. Nobody stays loyal to an invoice.
People stay attached to a point of view. If she'd been reading your stuff and seeing her work described as part of something with a name and an argument, the direct offer looks different. It looks like leaving a band to play weddings.
Same with partners. A platform rep or a dev shop refers work to the agency they can explain in a sentence. If they can't describe what you do, they end up describing who you've got. And who you've got is a person, so that's who gets the referral.
Your marketing is recruitment and retention for everyone who works with you but not for you. Not the "we're hiring" post. The stuff in between, where a freelancer or a partner can see what they'd be part of.
What to actually do
Write for three audiences on purpose. Before you publish anything, ask what a current client and a current partner or freelancer take from it. If the answer is nothing, it's a lead magnet, not marketing.
Put your clients on the list. With their permission, obviously. Your clients should read your thinking before your prospects do, not stumble on it.
Sell the method, not the deliverable. Every time you describe what you do as a task, you've told the client what to hire. Describe it as a way of thinking and there's nothing to poach.
Show a service a quarter. Something visible, every three months, that demonstrates a thing you sell that your current clients don't buy yet. Then let them ask.
Still add the clause. Fences are useful. Just know what they're for: stopping people who've already decided to leave. They do nothing for the ones still deciding.
If your client can hire your freelancer and get everything they were paying you for, the problem was never the freelancer.
Sources
Setup, Marketing Relationship Survey: eight years of data on why clients leave agencies (lack of strategic approach, understanding of the business). setup.us