The tool detects AI-originated Korean writing patterns — translation-style syntax, mechanical parallelism, passive-voice overuse, connector abuse, emoji/bullet overuse — across three severity levels (S1/S2/S3) using span-level classification. It then rewrites only the style and rhythm without touching the content. Supports both Claude Code (full strict 5-stage pipeline) and OpenAI Codex CLI (single-call fast mode). The installation is via a marketplace plugin or a clone-with-script approach with auto-detection of the host CLI.