How to vibe code your entire marketing engine in a day
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Your marketing is either working while you sleep or it isn’t working at all. For most founders, it’s a combination of good intentions, inconsistent output, and a content strategy that lives more in their head than in any system. The posts that should go out don’t. The content that should be repurposed sits in a folder. The data that should be informing decisions goes unread. None of this is a motivation problem. It’s a system problem. A growing number of founders have solved it the same way: they vibe coded the whole thing.
Vibe coding, creating tools, workflows, and systems by describing what you want to Claude Cowork in plain language, has opened up a level of marketing infrastructure that used to require a team.
Here’s how five founders built theirs.
Build a marketing engine by vibe coding it from scratch
A content system that maps posts directly to pipeline
“It’s quietly becoming the engine behind my client pipeline,” says Anjali Chawla, a LinkedIn growth coach. She built a content analysis workflow inside Claude Cowork that tags every post by pillar, hook type, and audience intent, then maps those patterns against which posts actually triggered inbound leads or booked calls, drawing on a full year of her own data. The result is a content strategy that gets sharper every week, driven by evidence rather than instinct.
The practical step here is to start with what you already have. Connect your accounts and scrape a year of posts and lead data. Load both into Claude Cowork and ask it to identify which content patterns correlate with real commercial outcomes. If you’ve been creating content for any length of time, the data is already sitting there waiting to tell you something.
Building the testimonial database that runs marketing
James Rose is founder of Content Snare, a document collection platform. His marketing insight was simple: if he could pull together every review and testimonial from every platform his customers used, he’d have a context file that could improve his website, sharpen his email copy, and train his team in the language real customers actually use.
So he built it. “We (yes Claude and I are a ‘we’),” said Rose, “scraped reviews from eight platforms including G2, Xero, Google, and Trustpilot. It pulled sixty customer calls from Google Drive, built a local transcription tool, transcribed those calls, and analysed the transcriptions for the best quotes. It then scraped LinkedIn comments and found headshots for every quote. The output: a front-end testimonial management tool, merged staff training docs, and a context file of the best quotes divided by theme.” One session. Asset that runs forever.
The LinkedIn strategy that updates itself
“I’ve been building a context OS around my LinkedIn strategy that has access to my KPI databases, allowing it to pull information on what’s working and update itself, keeping my strategy dynamic with validated data,” says Jack Odell, an AI workflow builder.
This is the version of a content strategy most founders have never built because it always felt like too much infrastructure to set up. With vibe coding, it’s an afternoon of work. Connect your performance data to Claude Cowork, describe the strategic questions you want answered weekly, and build the system that pulls the answers for you. Your strategy stops being something you revisit every quarter and becomes something that tells you what to do next based on what actually worked last week.
A ghostwriter that writes in your exact voice
Philippe Larcher is a marketing consultant for SMEs. He built a six-step agentic LinkedIn ghostwriter in Claude Cowork with deliberate failure tracking and hard stop gates built in, to prevent the system from proceeding if the output doesn’t meet his standards. Alongside it he built a lead enrichment skill that populates B2B lists with CEO names, LinkedIn profiles, emails, and phone numbers via parallel Claude agents, and an SEO topical map skill that builds keyword clusters from real search data via a DataForSEO pipeline.
What Larcher describes as his deliberate choice, “zero RAG to prevent voice contamination,” points to something worth understanding before you build your first tool. Add your writing samples and brand voice document before you begin any vibe coding project involving writing. Use a ban list. The output is only as distinctive as the input you give it.
A semantic content map built from competitor gaps
“This whole research used to take hours, if not almost the entire day when we were doing this manually,” says Jabez Reuben, a founder building an AI CMO. He built an off-page semantic content map generator in Claude Cowork, connected to Ahrefs, that takes his brand and competitor inputs and creates a map of content covering topics his competitors haven’t addressed on third-party sites. He trained it on research into how AI search results are influenced, so the output is optimised for how content gets surfaced in LLMs and AI-generated overviews.
The build Reuben describes is available to any founder with a content strategy and a few hours to invest. Feed your competitors into Claude Cowork alongside your own positioning, connect it to whatever SEO data you have access to, and ask it to find the gaps. For non-technical founders especially, this kind of research infrastructure used to be completely out of reach. Now it’s a session.
Vibe code the marketing system that works without you
Your marketing content, your lead data, and your competitor landscape are already sitting there. They’re just not connected to anything that makes them useful week to week. Pick the marketing problem that costs you the most time right now: the content that doesn’t get created, the strategy that never gets reviewed, the customer language that never makes it into your copy.
Open Claude Cowork, use Wispr Flow to talk through what you need, load your ICP and your data, and build the system that handles it. One afternoon changes what your marketing looks like every week after that.
Business owners: catch my free workshops on writing with AI and running a business that doesn’t run you at jodiecook.com.