To thrive as an intern at a stealth mode startup, you generally need a foundational understanding of your field (such as computer science, marketing, or business), strong problem-solving skills, and a proactive attitude. Familiarity with relevant tools—like project management platforms (Trello, Asana), programming languages (Python, JavaScript), or data analysis software—is often required, alongside a willingness to learn new systems quickly. Exceptional adaptability, initiative, and teamwork make candidates stand out, as startups demand resourcefulness and strong collaboration. These skills and qualities are crucial for navigating the fast-paced, ambiguous environment of startups and contributing meaningfully even with limited supervision.