json_to_toml

Convert a JSON string to TOML format.

Parameters

Parameter	Type	Required	Description
input	string	Yes	JSON string to convert. The top-level value must be an object; null values and mixed-type arrays are not allowed.

Response

Field	Type	Description
output	string	The converted TOML string.

Example

{
	"input": "{\"name\": \"Alice\", \"port\": 8080, \"db\": {\"host\": \"localhost\"}}"
}

Result:

{
	"output": "name = \"Alice\"\nport = 8080\n\n[db]\nhost = \"localhost\"\n"
}

Errors

Each failure carries a precise code in the response. Argument-schema and server errors are JSON-RPC protocol errors; a rejected value is returned as a tool result with isError: true (so the agent can read the code and self-correct).

Code	When	Delivered as
invalid_arguments	input is missing or not a string.	protocol error (invalid_params)
invalid_json	The input string is not valid JSON.	tool error (isError)
conversion_failed	The JSON is valid but cannot be represented as TOML (e.g. the top-level value is not an object, or it contains null or mixed-type arrays).	tool error (isError)
internal_error	An unexpected server error.	protocol error (internal_error)

Notes

• TOML does not support null values. Any null in the input will cause an error.
• Arrays must be homogeneous (all elements the same type). Mixed-type arrays are not allowed.
• The top-level JSON value must be an object; arrays and primitives at the top level are rejected.