curl --request POST \
  --url https://api.tilt.io/api/v1/custom/org/{organization_uuid}/dynamic_rules/validate/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "expression": "<string>",
  "sample_context": {}
}
'

{
  "valid": true,
  "error": "<string>"
}