Chrome Extension mit Claude Code

Last month, I built a Chrome extension that pulls lead data from a LinkedIn profile and sends it straight to HubSpot. 240 leads enriched. 8 meetings booked. Total cost: $18. Here's exactly how I did it with Claude Code:

Step 1: Record what you want - I opened the Apple Voice Memos app on my phone and recorded a voice message. I spoke as if I were explaining it to another person. I described exactly what I wanted: I visit a LinkedIn profile, Extension opens in the sidebar, Click a button to extract the name, title, and company details, Send it straight to HubSpot. The more specific you are here, the better the output.

Step 2: Set up Claude Code - I opened my terminal, created a blank folder, and started Claude Code inside of it. I said: "This is a blank, empty folder. I want to work on a new project." Then I pasted the full voice memo and switched to planning mode. Claude Code has a Supabase plugin that helps generate a full project plan. I reviewed every step of the plan before moving forward.

Step 3: Build the first version - Once the plan looked right, I told it to build the first version. It worked for about five to ten minutes. Then it told me how to install the extension.

Step 4: Test and iterate - From there I tested it, found bugs, added features, removed things I didn't like, gave feedback. I also have Git running in the background tracking every version. So when Claude makes an error, I can always roll back to what I had before. Eight months ago, this process used to take a lot of back and forth. Now it's straightforward.

The results: Manually entering those leads at 3 minutes each would have taken me 12 hours. With the extension, about 30 minutes. It also replaced two subscriptions that would have run me $80 a month. You don't need to be a developer to build your own tools anymore. You just need to be specific about what you want.