Koishi is an open-source framework for building multi-platform chatbots, designed around an adapter-driven architecture that lets a single bot connect to multiple messaging services with consistent logic. It provides a plugin-based development platform with hot reload support, enabling developers to write and update bot extensions using TypeScript without restarting the application. A web-based management console offers a graphical interface for configuring plugins, commands, permissions, and monitoring runtime status.
What distinguishes Koishi is its combination of a dynamic plugin lifecycle manager, context-aware configuration scoping, and a hierarchical command system with configurable prefix triggers and parameter validation. It supports multi-platform account binding, linking multiple user accounts to a single profile for shared data across platforms. Developers can simulate bot conversations in a sandbox, browse and install community plugins from a searchable marketplace, and leverage hot reload to apply code changes instantly. The platform also includes tools for dependency repair, project scaffolding, and daemon process management, along with built-in permission management and response localization per user or channel.