Continue is an open-source AI coding agent that provides chat, autocomplete, edit, and agent capabilities across VS Code, JetBrains IDEs, and a standalone CLI. The architecture centers on a shared TypeScript core (`core/`) that handles LLM interactions, context providers, tool definitions, indexing, and configuration management. This core is consumed by three frontends: a VS Code extension (`extensions/vscode/`), a JetBrains plugin (`extensions/intellij/`), and a CLI (`extensions/cli/`) with a React-based TUI. A separate React GUI (`gui/`) runs as a webview in the IDE extensions. The system supports 50+ LLM providers through a plugin architecture in `core/llm/llms/` and uses a YAML-based configuration system (`packages/config-yaml/`) with a Hub for sharing assistants. Codebase indexing uses a content-addressed Merkle tree approach with a Rust sync library (`sync/`). The repository is now read-only and deprecated as of the final 2.0.0 release, with the team recommending users migrate to the CLI.