What problem does it solve? Language learners accumulate session reports but lack a systematic way to turn raw feedback into targeted practice. This Skill reads recent session markdown files and converts error markers, scores, and corrections into a prioritized plan for the next lesson. ## Core Features & Use Cases - Error Pattern Extraction: Scans session files for correction markers, categorizes errors by type (grammar, vocabulary, prepositions) and severity, and counts frequency to distinguish typos from real weaknesses. - Trajectory Tracking: Compares accuracy and error counts across recent sessions to measure progress and tune difficulty. - Session Planning: Produces a structured next-session plan allocating time to top weaknesses, moderate patterns, and integration scenarios. - Use Case: Before starting a writing lesson, the tutor reviews the last three writing session reports, identifies that formal/informal register errors occurred five times, and builds a 20-minute drill sequence targeting that pattern. ## Quick Start Analyze my recent Fluent writing session results and tell me what I should practice next.