open.json

{
    "modules": [
        {
            "module": "log"
        },
        {
            "module": "openai",
            "with": {
                "model": "gpt-5-mini",
                "api_key": "{{ envs.OPENAI_API_KEY }}"
            }
        },
        {
            "module": "cache",
            "with": {
                "capacity": 1000
            }
        }
    ],
    "steps": [
        {
            "id": "storage",
            "payload": "{{ payload ?? main }}"
        },
        {
            "use": "log",
            "input": {
                "level": "{{ when steps.storage.len % 2 == 0 then \"warn\" else \"error\" }}",
                "message": "{{ steps.storage[-1].content }}"
            }
        },
        {
            "use": "openai",
            "input": {
                "action": "chat",
                "messages": "{{ steps.storage }}"
            }
        },
        {
            "payload": "{{ let storage = [...steps.storage];      storage.push(payload.data.choices[0].message);      let messages = [];      for (msg, index) in storage {          let role = if storage.len % 2 == 0 {              if index % 2 == 0 {                  \"assistant\"              } else {                  \"user\"              }          } else {              if index % 2 == 0 {                  \"user\"              } else {                  \"assistant\"              }          };          messages.push({              role: role,              content: msg.content          });      }      messages }}"
        },
        {
            "to": "storage"
        }
    ]
}