Improve test coverage for $ARGUMENTS.

Phase 1: Coverage Analysis

• Generate coverage report

• Identify untested functions, branches, error paths, edge cases

Phase 2: Test Priority

• Prioritise by: critical business logic, complex functions, error handling, public APIs

Phase 3: Test Generation

• Write tests covering edge cases, error conditions, and property-based tests where appropriate

• Follow existing test patterns and conventions

Phase 4: Test Quality

• Ensure tests are independent, clearly named, test one thing, and run quickly

Phase 5: Integration

• Run full test suite, check coverage improvement, refactor for maintainability

Generate tests that catch bugs, not just increase numbers. Focus on behaviour, not implementation.

Auto-Exit When Standalone

IMPORTANT: If this command is being run as a standalone request, automatically exit after completing all phases successfully.