# Validation

Package-build-host validation:

- Python compileall: PASS
- pytest: PASS (17 tests)
- direct-source target rule: 40 x 12 = 480
- nibble pack/unpack: PASS
- direct-source W4 packing unit test: PASS, BF16 row norms
- CPU packed GEMM reference/layout tests: PASS
- runtime static invariants: PASS
- no dense target `weight` Parameter in `OrbitQuantPackedLinear`: PASS
- CPU K/V cache streaming static checks: PASS
- Sol/flex separation static checks: PASS

Not claimable on the build host:

- Triton JIT compilation on the user's Colab GPU
- numerical CUDA parity for d=5120 / 13824
- full 32.8-GB transformer quantization
- full Wan-Animate-2 generation

These are mandatory gates in `COLAB_ONE_CELL.py`; generation is not allowed to proceed until the actual packed artifact passes the target-GPU kernel gate.