Model metadata

ONNX, GGUF, TFLite, and Safetensors parsers return graph and tensor inventories — not column statistics. No graph execution or weight loading.

`onnx_metadata`

Field	Meaning
`byte_count`	File size
`proto_parse_error`, `ir_version`, `producer_name`, `producer_version`, `domain`, `model_version`, `model_doc_string`	Wire header
`opset_import`	`{ domain, version }[]`
`model_metadata_props`	Key/value model metadata (capped)
`training_info_count`, `functions_count`	Training info and function defs
`graph_name`, `raw_node_count`, `graph_node_count`	Graph size (wire vs IR)
`initializer_count`, `sparse_initializer_count`, `external_initializer_count`	Weights
`graph_input_count`, `graph_output_count`, `graph_inputs`, `graph_outputs`	I/O with type summaries
`value_info_count`, `op_type_counts`	Intermediate values and op histogram
`parse_ok`, `parse_error`	IR conversion status and errors

`gguf_metadata`

Field	Meaning
`byte_count`	File size
`parse_ok`, `parse_error`	Decode status
`version`, `model_family`, `gguf_file_type`, `model_parameters`	Header summary
`num_kv`, `num_tensor`	Counts
`kv`	Capped metadata key/value JSON
`tensor_summaries`	`{ name, shape, dtype, … }[]` (weights not loaded)

`tflite_metadata`

Field	Meaning
`byte_count`	File size
`parse_ok`, `parse_error`	FlatBuffer parse status
`schema_version`, `description`	Model header
`operator_code_count`, `subgraph_count`, `buffer_count`, `model_metadata_count`	Inventory
`subgraphs`	Per-subgraph `{ index, name?, tensor_count, operator_count, input_tensor_indices, output_tensor_indices }` (capped)
`op_type_counts`	Builtin operator histogram across all subgraphs

`safetensors_metadata`

Field	Meaning
`byte_count`	File size
`parse_ok`, `parse_error`	Header parse status
`header_metadata`	Optional `__metadata__` JSON
`tensor_count`, `tensors`	`{ name, dtype, shape, data_bytes }[]` (capped)
`dtype_counts`	Dtype histogram

Related: Metadata overview, Supported formats.