Production readiness is a critical concept in software development, ensuring that applications or systems can be reliably deployed in live environments. It encompasses a range of requirements, including sufficient testing, reliability, documentation, and monitoring, which can vary depending on the organization's size and needs. A shift-left approach, where developers are more involved in production operations earlier in the development lifecycle, is emphasized to reduce incidents and improve efficiency. Tools like service catalogs and internal developer portals play a significant role in managing production readiness by providing unified interfaces that consolidate essential information, thus reducing cognitive load and improving developer autonomy. Automation and a production and reliability mindset are also crucial, as they streamline processes, enhance scalability, and minimize errors. Disaster recovery plans and post-mortem meetings are essential practices to prepare for and learn from incidents. Ultimately, achieving production readiness leads to better customer experiences, more frequent and confident deployments, and improved code quality.