This n8n Workflow Turns Your Competitors' Ads Into a Polished Sales Deck
Lucas Walter built an automation that scrapes Meta Ad Library, has Gemini audit the ads, and Gamma builds a full sales deck — in minutes. Here is how it works.
If you do any kind of ad creative work — UGC, performance creative, paid social management — this n8n workflow Lucas Walter built is going to save you a ridiculous amount of time.
In a recent video, he walks through an end-to-end automation that takes a brand name, scrapes their active Meta ads, runs them through Gemini for an AI-powered creative audit, and then builds a full Gamma slide deck — all in a few minutes.
I've been around Meta ads long enough to know that the free audit is what closes creative deals. You pull their ads, show them what's broken, and pitch your fix. It works — but it takes forever manually. This workflow does all of that automatically.
The audit is your closer. The automation just lets you close a lot more of them.
How the Workflow Actually Works
Lucas breaks it down into two phases in the video.
Phase 1: Context Building
You input two things: the brand's website URL and their Meta Ads Library URL (filtered to active ads). The automation then:
- Scrapes the brand website for context
- Pulls all active ads from the Meta Ad Library — images, videos, copy
This is the foundation. The more context it has, the better the audit.
Phase 2: Audit + Deck Generation
All that scraped context gets pushed to Gemini 1.5 Pro, which can analyze both images and videos simultaneously. It comes back with:
- What's working in the creative mix
- What's broken (creative fatigue, messaging gaps, format imbalances)
- Specific recommendations tied to the brand's situation
Then that entire audit — plus all the ad image/video URLs — gets passed to the Gamma API. Gamma is an AI presentation tool that takes text and media and builds a polished slide deck. The result: a full branded audit deck, auto-generated, ready to send.
The Demo Results
In the video, Lucas demos this on Coin Ledger (a crypto tax software). The audit caught that they were running the same "confused guy" ad format too heavily — classic creative fatigue — and flagged one street-interview format that was outperforming. Both insights matched reality.
Is it 100% ready to send without review? No — Lucas is clear about that. You need to customize the Gamma prompt with your own sales framework and pitch structure. But the output gives you a real 80% draft in minutes instead of hours.
What I'd Use This For
I've run Facebook ads long enough to know that the people who win aren't the ones working the hardest — they're the ones testing the most, learning the fastest. What used to take me two hours of ad library research I could now turn around in a few minutes.
For anyone running a creative agency or even just doing client prospecting: this workflow is a lead generation machine. Run audits on 20 brands, send personalized decks to each one, and follow up. That's a serious prospecting operation at almost zero marginal cost per prospect.
How to Get It
Lucas gives away the full n8n workflow, all prompts, and implementation guide at the end of the video. He says if you're doing ad creative services, this is ready to adapt for your own sales process — just make sure you customize the Gamma prompt to reflect how you actually pitch clients.
The Bottom Line
AI automation is the great equalizer for solo operators and small agencies. What used to require a team can now run on a workflow. If you're in any kind of ad services business, this is worth a few hours of setup time.