Lauren Tan open-sourced pstack: 24 skills, 21 principles, 22 playbooks, 2 subagents.

The React core team member began publishing a ten-part guide on September 1 to the plugin she ships under cursor/plugins (GitHub). The entry point /poteto-mode routes a request to the right playbook and enforces runtime verification rather than treating a passing build as proof, with /how and /why for tracing behavior, /architect and /arena for design, /swarm for parallel coverage and /interrogate for multi-model review. Her framing is explicitly anti-throughput: "throughput without quality is not a goal i aspire to." MIT licensed, and the most complete published agent workflow I have seen from someone whose day job is a codebase you have heard of.