AutoDev is a multi-platform AI-powered coding assistant that integrates with IntelliJ IDEA and VS Code, and also runs as a standalone desktop app, CLI, web app, and mobile app. Its core engine is a Kotlin Multiplatform (KMP) agent framework that orchestrates LLM calls, tool execution (file I/O, shell, web fetch, MCP servers), and code generation/refactoring. The architecture is modular: `mpp-core` provides shared agent logic, tool schemas, linters, and document parsing; IDE-specific plugins (`mpp-idea`, `mpp-vscode`) deliver chat panels, inline completions, code review, and database integration; `mpp-ui` is a Compose Multiplatform frontend for desktop/CLI/mobile; `mpp-server` is a Ktor-based remote agent server; `xiuper-ui` implements a novel spec-driven UI DSL (NanoDSL) for rendering agent output as interactive components. The system supports multiple LLM providers (OpenAI, Anthropic, Google, GitHub Copilot, etc.), MCP protocol for tool integration, and A2A (agent-to-agent) communication. It includes a custom DSL (DevIns/Shire) for defining agent behaviors, completions, and variable resolution. While primarily an application, it includes data processing components like code graph parsing, document indexing, NLP tokenization, and heuristic scoring models, giving it a hybrid character. The codebase is large and actively developed, with frequent releases and a rich set of features, though some platform-specific implementations are stubs and there is moderate technical drift from deprecated APIs and naming inconsistencies.