Lab Experiment
Privacy Proxy
A local pipeline that strips PII from financial documents before sending them to Claude for analysis — so my SIN never touches the cloud
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Hi, I'm Andrew Giffen
I explore small experiments to find the ones worth scaling.
I'm a product leader who connects the dots and helps teams ship. This is my home base for what I've built and what I'm learning.
Featured Work
What I'm Building
The Lab
Experiments
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Writing
Case Studies & Learnings
Guide
The Privacy Proxy Pattern
I wanted Claude to analyze my bank statements. I wasn't going to paste my SIN into an API call. So I built a local sanitization proxy that strips PII before it leaves my network. Here's the pattern, the tradeoffs, and where it falls short.
Guide
Agents Are Untrusted Processes
Your AI agent can read your filesystem, execute shell commands, and make network requests. You're trusting it because the system prompt says 'be helpful.' That's not security — that's hope. Here's what actual isolation looks like.
Guide
Your First 10 Minutes With Claude Code
Most people open Claude Code and start prompting. That works — until your sessions get expensive, your agent makes the same mistakes twice, and you're spending more time correcting than building. Here's the step-by-step setup that fixes it.
Essay
The Puzzle That Never Ends
I've cut back on drumming. I stopped going to the gym. My daughter goes to bed and I open Claude and don't close it until 11:30. I've done more in three months than I did in three years. It feels incredible. I also don't know where it ends.