winml analyze --device requires uppercase (NPU/GPU/CPU) inconsistent with other commands

[DingmaomaoBJTU]

Description

winml analyze --device only accepts uppercase values (NPU, GPU, CPU). All other commands (winml perf, winml compile, winml config, etc.) accept lowercase (npu, gpu, cpu). This inconsistency causes confusing errors when users follow the same flag pattern across commands.

Repro

winml analyze --model model.onnx --ep qnn --device npu

Error

Error: Invalid value for '--device': 'npu' is not one of 'CPU', 'GPU', 'NPU'.

Expected

--device npu (lowercase) should be accepted, consistent with all other winml commands.

Workaround

Use uppercase: --device NPU

Environment

• OS: Windows 11
• winml-modelkit: 0.0.1.dev1