AntSword is an Electron-based desktop application for managing web shells on remote servers, primarily used by penetration testers and authorized security researchers. It provides a tabbed interface for shell management, file browsing, virtual terminal access, database querying, and plugin execution. The core engine in source/core generates HTTP requests from per-language templates (PHP, ASP, ASPX, JSP, etc.), applies configurable encoders/decoders for obfuscation, and parses responses using charset detection. Shell credentials and settings are persisted locally via nedb through modules/cache.js and modules/database.js.