This is a comprehensive test automation framework for 1C:Enterprise 8.3 managed applications, named 'Tester'. It provides a full suite of tools for creating, managing, executing, and reporting on UI and business logic test scenarios. The repository contains three main integrated components: (1) a native C++ add-in (addon/) that exposes low-level capabilities like screenshot capture, regex, file watching, metadata parsing, and a Model Context Protocol (MCP) server for AI agent integration; (2) a 1C:Enterprise configuration (tester/) with catalogs, documents, common modules, and forms implementing scenario lifecycle management, execution engine with debugging, job scheduling, error logging, and report generation; and (3) a VS Code extension (addon.vscode/) for editing scenarios with syntax highlighting, code completion, and direct test execution. The system supports distributed execution via agent computers, file system synchronization with external editors (EDT, VS Code), version control through git integration, and role-based access control. Notable patterns include a bilingual API (English/Russian method aliases), a fluent assertion library, a custom JSON diff engine for UI state comparison, and an XML log transpiler that converts recorded user actions into executable scripts. Documentation is extensive, including a separate wiki site built with MkDocs. The repository is actively maintained with frequent releases, though it shows medium technical drift due to some outdated dependencies in the VS Code extension and use of platform-specific workarounds.