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.
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Case Studies & Learnings
Case Study
How I Built a Competitive Intelligence System I Manage From WhatsApp
I had automated research bots emailing me competitive insights, but the information sat in my inbox half-read and never synthesized. So I built a system that never forgets - one that accumulates knowledge over months, answers questions via WhatsApp, and produces battlecards, positioning summaries, and trend analyses for other teams.
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.