query-param-collision

Forbids a scalar query parameter from sharing a name with a property exposed by a form-exploded object query parameter in the same operation.

Attribute	Value
Category	Parameters
Maturity	Platinum
Lenient–Strict	Warning
Recommended–Complete	Error

See it fail

parameters:
  - in: query
    name: filter
    style: form
    explode: true
    schema:
      type: object
      properties:
        status: { type: string }
  - in: query
    name: status
    schema: { type: string }

Both parameters serialize a status query key.

Fix it

Rename or remove the scalar parameter, or change the object serialization contract.

Nearby: required-query-object-conflict, operation-parameters-unique.