Ndjson To Csv MCP tool
findutils:ndjson_to_csv Convert newline-delimited JSON (NDJSON, JSON Lines, .jsonl) into a flat CSV. Each line is one JSON object; the header is the union of every key in first-seen order, and a key a row does not have becomes an empty cell. Nested objects are flattened to dot paths (user.name) and array items to indexed keys (tags[0]) by default, or kept as JSON text in one cell with nested set to json. A line that is not valid JSON or not an object is skipped and reported by its line number; the other lines still convert. A JSON array is refused with a pointer to the JSON to CSV tool. Quoting follows RFC 4180. Values are written as text and never coerced.
Arguments
application/json-
ndjson
string required
The JSON Lines text: one JSON object per line.
-
nested
string optional
flatten (default): nested keys become dot paths such as user.name and array items become tags[0]. json: a nested value is written as JSON text in one cell. One of
flatten · json. Default"flatten". -
delimiter
string optional
Output field separator: "," (default), ";" or "\t". Default
",". -
header
boolean optional
Write the header row. Default true. Default
true.
Example arguments
Verified{
"ndjson": "{\"id\":1,\"user\":{\"name\":\"Ada\"}}\n{\"id\":2,\"user\":{\"name\":\"Linus\"},\"tags\":[\"a\"]}"
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