{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "title": "Chroma BM25 Embedding Function Schema",
    "description": "Schema for the Chroma BM25 sparse embedding function configuration",
    "version": "1.0.0",
    "type": "object",
    "properties": {
        "k": {
            "type": "number",
            "description": "BM25 saturation parameter controlling term frequency scaling"
        },
        "b": {
            "type": "number",
            "description": "BM25 length normalization parameter"
        },
        "avg_doc_length": {
            "type": "number",
            "description": "Average document length in tokens used for normalization"
        },
        "token_max_length": {
            "type": "number",
            "description": "Maximum token length allowed before filtering"
        },
        "stopwords": {
            "type": "array",
            "description": "Optional custom stopword list (in lowercase) to override the defaults",
            "items": {
                "type": "string"
            }
        },
        "include_tokens": {
            "type": "boolean",
            "description": "Whether to store token strings in the sparse vectors (default: true)"
        }
    },
    "additionalProperties": false
}