What problem does it solve? Language learners need structured vocabulary practice that targets weak words instead of random review. This Skill runs a flashcard-style drill session that selects words from spaced-repetition, mistakes, and mastery databases, presents them one at a time, and records results back to the learner's progress data. ## Core Features & Use Cases - Spaced-repetition word selection: Prioritizes due review items, low-mastery mistake words, and new high-frequency vocabulary matching the learner's focus areas. - Three interleaved drill modes: Rotates recognition, production, and cloze prompts to force active recall rather than passive re-reading. - Immediate scored feedback: Scores each answer out of 10 with severity tags, then batches all results into a single end-of-session database update. - Use Case: A Dutch learner types /fluent-vocab, reviews 15 words across the three modes, and receives a session summary showing accuracy, mastered words, and upcoming review counts. ## Quick Start Type /fluent-vocab to start an interactive vocabulary drill session based on your current review queue.