Write high-quality BDD pytest tests for the ArduPilot Methodic Configurator. Use when writing new unit tests, creating test fixtures, applying Given-When-Then pattern, testing tkinter frontends, or following the minimal-mocking strategy for backend and business logic.
Add a new plugin to ArduPilot Methodic Configurator (AMC). Use when implementing a new calibration, monitoring, or configuration plugin — e.g., "add a radio calibration plugin". Covers all five mandatory touch-points: plugin_constants.py, __main__.py, data_model_parameter_editor.py, frontend_tkinter_*.py, and configuration_steps_schema.json, plus the optional configuration_steps_*.json wiring and an optional renderer module.
Add a new translation language to the application. Use when adding support for a new locale/language code, creating .po files from the .pot template, registering language codes in internationalization.py, LANGUAGE_CHOICES, tasks.json, pyproject.toml classifiers, and the Windows installer.
Update existing GUI translations using AI assistance. Use when updating .po translation files, running create_pot_file.py, merge_pot_file.py, extract_missing_translations.py, insert_missing_translations.py, or create_mo_files.py to add missing translated strings to existing languages.
Create a new empty vehicle template for a new ArduPilot firmware version. Use when a new firmware release requires a fresh empty template directory under vehicle_templates/, involving flashing firmware, connecting to AMC, creating a project directory, and reviewing all configuration steps to handle renamed or removed parameters.
Validate and update ARCHITECTURE_n_*.md files against actual source code implementation. Use when checking if architecture docs are accurate, updating implementation status indicators (IMPLEMENTED/PARTIALLY/TODO), or verifying component lists, data flows, and integration points.
Analyze the codebase structure and count lines of code by category using cloc. Use when generating code statistics, calculating test-to-application ratios, documentation-to-code ratios, or identifying generated code percentages.
Add, delete, or re-order configuration steps in configuration_steps_*.json. Use when inserting new param files, deleting steps, renaming .param files with param_reorder.py, updating vehicle templates, or migrating parameters between files in backend_filesystem_migration.py.