How I Use Claude Code + VS Code to Build High-Value Tools That Boost VSL Funnel Performance
Most advertisers lose money before their funnel even has a chance to work.
They send cold traffic straight to a landing page, hope people opt in, and then wonder why their ad spend disappears with nothing to show for it.
In this post, I’ll walk you through a different approach—one that combines Claude Code, VS Code, and simple interactive tools (like calculators) to dramatically improve ad efficiency, watch time, and conversions.
This is the same process I demonstrate in the video above, where I build a mortgage payoff / invest-vs-pay-down calculator from scratch using Claude Code inside VS Code.
Why Claude Code (and Why Inside VS Code)
Claude Code has exploded in popularity for one simple reason:
It’s extremely good at holding long instructions in memory and executing complex tasks step-by-step.
Instead of prompting an AI over and over in a web interface, Claude Code inside VS Code lets you:
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Work locally on your machine
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Switch between projects instantly
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See a clear execution plan before code is written
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Approve steps as they happen
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Iterate fast without losing context
Compared to tools like Codex or Gemini:
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Codex is great for small, tightly scoped tasks
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Claude excels at multi-step builds like full calculators or tools
That makes it perfect for building “value bombs”—simple tools that solve a real problem immediately.
The Core Idea: Replace Opt-Ins With Instant Value
Most funnels look like this:
Ad → Landing Page → Opt-In → VSL → Offer
And here’s where things break:
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10–20% of users drop off during page load
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Only ~20% opt in
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Fewer watch the VSL
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Even fewer buy
That means you’re paying for traffic you never get to influence.
The Alternative Strategy
Instead, I run the VSL directly on the ad platform and send traffic to something useful immediately—like a calculator.
So the flow becomes:
Ad (Watch Time VSL) → Value Tool → Conversation → Offer
No gate. No friction. No wasted attention.
Why Calculators Work So Well
Calculators check every box for high-performing value tools:
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They’re easy to build
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They feel “custom” to the user
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They solve a real, urgent problem
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They work across industries
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They rank surprisingly well in Google
In the video, I use Calculator.net for inspiration and spot a mortgage payoff calculator with:
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~47,000 searches/month
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Low competition
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High user intent
Instead of copying it, I use a Blue Ocean Strategy.
The Blue Ocean Twist: Pay Down vs Invest
Rather than building the same calculator everyone else has, I ask Claude:
“How can we make a similar calculator that answers a different question?”
The result:
A calculator that compares paying extra toward a mortgage vs investing that money instead, factoring in:
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Remaining loan balance
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Interest rate
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Extra monthly payments
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Expected investment return
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Capital gains tax
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Visual payoff vs growth charts
This is instantly more valuable than a generic payoff calculator—and perfect for:
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Real estate investors
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Financial advisors
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Mortgage professionals
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Lead-gen campaigns
How I Build It With Claude Code
Here’s the exact workflow I demonstrate:
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Create a new project folder in VS Code
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Open Claude Code inside the editor
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Paste in high-level instructions (not language-specific)
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Let Claude propose a full execution plan
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Approve steps as it builds
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Test locally in a browser
Claude handles:
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File structure
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Logic
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UI
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Charts
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Iteration
All in one flow.
No copy-paste chaos. No broken context.
Why This Crushes Traditional Funnels
Platforms like Meta reward watch time, not clicks.
When you run ads as content:
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The algorithm learns who actually pays attention
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Your ads get cheaper over time
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People self-qualify before ever clicking
Instead of losing 80% of users at each funnel step, you keep them on platform, warming them naturally.
By the time they reach your offer:
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They’ve already watched you
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Already trust you
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Already used your tool
This is how you turn $100 of ad spend into $100 of real attention, instead of $80 lost to page load and form friction.
