curl --request PUT \
  --url https://api.example.com/api/agents/{agentId} \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "description": "<string>",
  "systemPrompt": "<string>",
  "model": "<string>"
}
'

{
  "agent": {}
}