This is an example of an agent you can build in Sylvie: a paid social writer that produces the complete ad, primary text, headline, description and CTA, for Meta, TikTok, LinkedIn, Pinterest or Snap, plus the hook and angle variants your buyer needs to test properly. It runs on your brand brain, so every line pulls from approved product facts, the offer running now and the claims legal has cleared, sized to each placement's limits. Nothing ships pre-built: Sylvie assembles this agent on your own memory, tuned to how your campaigns actually run.
Sylvie does not ship this agent pre-built. It is an example of an agent your team can build with Sylvie, powered by your brand brain, so it runs your workflow the way you actually run it.
Social Media Ad is a working example of an agent your paid team can build on Sylvie. Give it an offer, an audience and a creative, and it writes the full copy set for the platform you name: primary text sized so the hook survives the 'see more' cutoff, a headline that fits the placement, a description, the CTA button that matches the objective, and a spread of variants built to change one variable at a time.
For a performance team, the bottleneck is rarely the idea, it is volume. Every audience, offer, angle and placement multiplies the copy, and the writing usually happens the night before launch, in a spreadsheet, against a character counter. Because this agent writes from your brand brain instead of a blank field, the set comes back on brand, compliant and structured for upload, so buyers spend their day on the testing plan rather than wordsmithing.
Before it writes, the agent reads your brand brain: the approved value props and product facts, the offer live right now, the audience and how much they already know about you, the tone rules, the claims legal has cleared and the ones it has banned, and the ads that have already returned on this account. It knows this quarter's promotion overrides last quarter's, and it will not put an unapproved claim in a headline to make it land harder.
Then it drafts inside Sylvie, to the format each platform demands: primary text written so the hook does its work above the fold, headlines and descriptions inside their exact character limits, a CTA matched to the objective, and variants organised as a readable test matrix (hook against hook, angle against angle) instead of five near-identical lines. It flags anything likely to trip an ad policy review, returns the set for approval, and everything stays in one place, sourced back to the brain it came from.
The first line is written to do its job before Meta or TikTok truncates the primary text, so the ad earns the tap on 'see more' instead of losing the reader in two seconds.
Instead of a pile of near-duplicates, you get a structured matrix that moves one variable at a time. Your buyer can read the result and actually learn which hook or angle won.
Meta, TikTok, LinkedIn, Pinterest and Snap each get copy written to their limits and their register, so nothing gets cut at upload and nothing reads like a Facebook ad pasted into TikTok.
Cleared claims live in the brain and banned language stays out, and the agent flags copy that commonly trips a policy check. Fewer disapprovals means launch day stops being a firefight.
Cold prospecting, warm retargeting and cart abandoners get different arguments rather than the same pitch at three volumes, because the agent knows what each audience already knows about the brand.
The hooks and angles that drove cheap conversions live in the brand brain, so proven copy gets reused across campaigns and the account knowledge stays put when a buyer moves on.
A few of the moments where a Social Media Ad agent, built on your brand brain, earns its keep. Each one is copy a specialist would otherwise grind out by hand, variant by variant, the night before a launch.
A product goes live and the same offer has to run on Meta, TikTok, LinkedIn and Pinterest. The agent writes a native copy set for each from the approved launch messaging, so all four campaigns are built and uploaded in a day instead of one platform per day.
CPMs are climbing on an ad set that has been running six weeks. The agent generates fresh hooks against the same proven angle, drawn from the brand brain and the ads that already worked, so the buyer refreshes on Monday and keeps the campaign alive without reopening strategy.
The same promotion needs copy for cold traffic, lookalikes, site visitors, cart abandoners and lapsed customers. The agent writes each version to what that audience already knows, so five ad sets launch together and every one argues the right thing.
A finance or health client needs paid social that never crosses a line. The agent writes only from the claims their legal team has cleared and flags anything close to the edge, so the review round takes an hour instead of three days of redlines.
A new campaign has three plausible positions and nobody knows which will land. The agent writes a clean test matrix from the brand brain, one angle per cell with matched hooks, so a small test budget returns a readable answer instead of a muddled one.
Twelve accounts all need peak season ads in the same two weeks. The agent drafts each brand's set from its own brain, with its own voice, offer and cleared claims, so the agency ships the whole roster on time without hiring seasonal copywriters.
Those rephrase what you already typed and know nothing about your brand beyond the page they sit on. This is an agent you build on your brand brain, so it starts from your positioning, your live offer, your cleared claims and the ads that already performed on the account, and it returns a full structured set instead of a paraphrase.
It writes only from claims your brand has approved, keeps banned language out, and flags lines that commonly trip policy checks on each platform, because those rules live in the brain you built. It does not replace your legal sign-off, it makes the review round short.
You build it, and no code is involved. You connect your sources, approve what the agent may read from the brand brain, and Sylvie assembles the workflow around how your buyers actually launch, usually in an afternoon. The agent on this page is an example of what teams build for themselves, not an off-the-shelf product.
Yes, and to each one's format and register, because you tell it which placements you run and what good looks like on each. Character limits, CTA options and tone per platform all come from what you set up in your own agent.
It is the memory the agent executes on: value props, product facts and pricing, the offer running now, tone rules, cleared and banned claims, audience notes and past ad performance, kept current from the tools you already use. Every line is assembled from that approved material and traces back to its source.
Yes. Each client gets its own permission-aware brain, so one brand's offers, claims and performance data are never reachable from another's ads. The agent only reads what you give that brand, every set stays in your review before it enters the ad account, and nothing trains a foundation model.
Book a demo and we will map the workflows worth turning into agents, and show how each one runs on your brand brain.
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