array type must have items field

[Dreampip]

push_flex_message
broadcast_flex_message
create_rich_menu

Common issues in Schema/OpenAPI specifications:
Specification requirement: In JSON Schema (especially the 2020-12 draft and OAS 3.1.x), the array type must explicitly declare the "items" field to define the type of array elements.
MCP context: This error typically occurs in the MCP server when defining tool parameters, and it happens when the "items" attribute of the array parameter is not correctly configured.

Causes errors in the parameters of the parsing tool：array type must have items field
Could you please fix it up?