Old Zhang's AI Learning

Nov 8, 2026 · Artificial Intelligence

Grok's 'Potato Sister' Open-Sources pstack: Agent Harness for 1150 PRs in 4 Days

Lauren Tan (poteto) shares her open-source pstack agent harness for Cursor and Claude Code, featuring 58 skills, 23 playbooks, a four-layer defense strategy, and commands like /poteto-mode and /correct that enforce structural fixes over documentation, enabling 1150 PRs in 4 days.