- Hardcoding port 8000 in container startup or health checks can cause false-negative readiness on HuggingFace Spaces where `PORT=7860` is injected at runtime *(F007)* - API health checks can report green while episodes still fail unless probes also assert at least one bundled `*.sqlite` file exists under `data/databases` *(F007)* - `uv run openenv validate --verbose` can fail non-docker modes on missing callable `main()` while still reporting Docker mode as supported, so Space submissions should evaluate readiness by deployment mode matrix instead of a binary pass/fail read *(F007)*