In a rapidly evolving tech landscape, companies are striving to accelerate their software development processes, and while AI has improved the "inner loop" of code writing, the "outer loop" involving testing, reviewing, and merging remains a bottleneck. Organizations face the choice of building custom in-house tools or adopting commercial solutions like Graphite's AI-powered code review platform to enhance productivity. Building in-house offers customization and control but comes with hidden costs, scalability challenges, and resource diversion, whereas commercial tools offer scalability, security, and continuous updates. Graphite aims to streamline the outer loop by providing features such as AI-driven code reviews, seamless PR stacking, efficient merging through a merge queue, and data-driven insights to enhance team performance, allowing engineering teams to focus on delivering value to customers without the burdens of maintaining internal tools.