Write, review, and debug QTSurfer strategies in QTScript (.qtscript) — a compact strategy language, currently in beta, whose braced bodies are plain Java. Use when writing a strategy as sections (strategy, param, init, instruments, setup:, windows, onCommand) instead of a Java class, or when reading QTScript compile and run-time errors. For the full Java strategy API — the indicator catalogue, listeners, state and signals used inside every body — see the qtsurfer-java-strategy skill.