Step 1 — Implementation Detail

Added docs/agent-specification.md and docs/system-prompt.md defining inputs, outputs, workflow, requirements, diagram rules, and error handling.
Added Requirements and GenerationResult dataclasses in src/application_landing_zone_agent/models.py.
Added render_tsd and render_drawio in generator.py, including XML escaping and architecture layers.
Added ApplicationLandingZoneAgent.generate in agent.py to validate, write tsd.md, architecture.drawio, and manifest.json.
Added cli.py, package exports, examples/requirements.json, and tests/test_agent.py.