Prepare for L6+ coding interviews — in-memory databases, concurrency, state management, iterative follow-ups. Use when practicing real-world system-building problems or preparing communication strategies for live coding. Activate on "coding interview", "staff interview", "codesignal", "live coding", "rate limiter interview". NOT for LeetCode/competitive programming, behavioral interviews, or system design whiteboard.
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SKILL.md / Manifest
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