What is GStack and what problem does it solve?
GStack is an open-source toolkit that implements a 'thin harness, fat skills' approach to make Claude Code operate as a structured AI engineering team, adding roles, process, and review to reduce broken or wandering code.
What is the Office Hours skill and why is it important?
Office Hours is a skill modeled after YC partner sessions that asks forcing questions to pressure-test ideas, surface real user pain, and reframe product scope before any code is written.
What demo does Garry use to illustrate GStack's workflow?
He demos a tax app that searches Gmail and financial sites to find 1099s, showing idea refinement, adversarial review, automated design, browser automation, and QA in one session.
How does GStack help catch problems early?
GStack includes auto plan and adversarial review skills that simulate CEO/engineering/design critiques to identify feasibility, privacy, or implementation issues before heavy development.
How does GStack change developer productivity according to Garry?
By structuring agents into roles and running parallel cloud coding sessions, GStack lets Garry iterate faster, manage many PRs, and 'ship 10x faster' by automating review, tests, and browser interactions.