Step-by-step walkthrough of a real client-simulated run (task dep_39e53ee4c692) with actual request/response at each stage: create -> poll workflow -> artifacts -> manifest -> files -> archive. Confirms agent_management delivers real code files + nested folders (backend/main.py, backend/models.py) surfaced as a project_folder. Includes a client self-check list. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>