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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:

  • Work locally on your machine

  • Switch between projects instantly

  • See a clear execution plan before code is written

  • Approve steps as they happen

  • Iterate fast without losing context

Compared to tools like Codex or Gemini:

  • Codex is great for small, tightly scoped tasks

  • 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:

  • 10–20% of users drop off during page load

  • Only ~20% opt in

  • Fewer watch the VSL

  • 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:

  • They’re easy to build

  • They feel “custom” to the user

  • They solve a real, urgent problem

  • They work across industries

  • They rank surprisingly well in Google

In the video, I use Calculator.net for inspiration and spot a mortgage payoff calculator with:

  • ~47,000 searches/month

  • Low competition

  • 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:

  • Remaining loan balance

  • Interest rate

  • Extra monthly payments

  • Expected investment return

  • Capital gains tax

  • Visual payoff vs growth charts

This is instantly more valuable than a generic payoff calculator—and perfect for:

  • Real estate investors

  • Financial advisors

  • Mortgage professionals

  • Lead-gen campaigns


How I Build It With Claude Code

Here’s the exact workflow I demonstrate:

  1. Create a new project folder in VS Code

  2. Open Claude Code inside the editor

  3. Paste in high-level instructions (not language-specific)

  4. Let Claude propose a full execution plan

  5. Approve steps as it builds

  6. Test locally in a browser

Claude handles:

  • File structure

  • Logic

  • UI

  • Charts

  • 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:

  • The algorithm learns who actually pays attention

  • Your ads get cheaper over time

  • 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:

  • They’ve already watched you

  • Already trust you

  • 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.


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