# Step 3 — Implementation Detail

1. Added tests/test_agent.py for TSD generation and required sections.
2. Added XML parsing and mxGraphModel assertions for architecture.drawio validation.
3. Added manifest JSON shape validation and required-input rejection coverage.
4. Added pyproject.toml package metadata, pytest configuration, and CLI entry point.
5. Added docs/validation-report.md describing automated and human-reviewable checks.