I reverse-engineered Viktor, the viral AI coworker, and reimplemented it as an open-source project.

Hacker News is a community-driven platform for sharing and discussing technology news, startups, and programming-related topics. Through user submissions and comments, Hacker News offers insights into emerging technology trends, industry developments, and entrepreneurial ventures. Readers can participate in discussions, share their insights, and stay informed about the latest advancements in technology and innovation.

Hacker News

A developer reverse-engineered Viktor, a viral AI coworker by Zeta Labs, by prompting it to expose its own filesystem. The agent's workspace contained its internal SDK, 16 days of structured logs, API endpoint schemas, and 19 skill prompt files. Using Claude Code to analyze the extracted files alongside Viktor's public technical blog posts, the author reconstructed a detailed architecture specification in about 2 hours. He then spent two days reimplementing the entire system as an open-source, self-hostable project.

Reverse-engineering Viktor and making it Open Source — Mateusz Jacniacki