NATIVE_KERNEL_RESOLUTION.json

{
  "schema_version": "native_kernel_resolution.v198_26_52",
  "reason": "upload_workspace_post_sanitize_preflight",
  "status": "resolved",
  "package": "flash-attn",
  "explicit_requirements": [
    "flash_attn"
  ],
  "hf_kernels_evaluated": true,
  "diffusers_dispatcher_available": false,
  "transformers_attention_interface_available": false,
  "direct_flash_attn_shim_available": false,
  "selected_backend": "xformers_sdpa",
  "decision": "omit_with_xformers_sdpa_fallback",
  "requirements_changes": [],
  "app_changes": [],
  "fatal_problems": [],
  "warnings": [],
  "evidence": [
    {
      "type": "requirements_has_flash_attn",
      "value": false
    },
    {
      "type": "requirements_has_kernels",
      "value": true
    },
    {
      "type": "diffusers_dispatcher_marker",
      "value": false,
      "hub_backend": false,
      "flash_backend": false
    },
    {
      "type": "transformers_attention_marker",
      "value": false,
      "hub_backend": false,
      "flash_backend": false
    },
    {
      "type": "direct_flash_attn_functions",
      "functions": [],
      "has_get_kernel": false
    },
    {
      "type": "fallback_evidence",
      "value": {
        "type": "allowed_native_kernel_model_card_requirement",
        "required": "flash_attn",
        "package": "flash-attn",
        "evidence": [
          {
            "source": "PI_SOURCE_USAGE.json",
            "mentions_fallback": false,
            "mentions_deviation": true,
            "app_disables_native_kernel": false
          },
          {
            "source": "REPAIR_SUMMARY.md",
            "mentions_fallback": false,
            "mentions_deviation": true,
            "app_disables_native_kernel": false
          },
          {
            "source": "README.md",
            "mentions_fallback": true,
            "mentions_deviation": true,
            "app_disables_native_kernel": false
          },
          {
            "source": "repair/REPAIR_SUMMARY.md",
            "mentions_fallback": false,
            "mentions_deviation": true,
            "app_disables_native_kernel": false
          }
        ],
        "policy": "Allowed because the model-card native kernel package is evidenced as replaced/disabled by a runtime-compatible attention backend, avoiding fragile Space source builds."
      }
    }
  ],
  "updated_at": "2026-06-25T10:32:43.471299+00:00"
}