ChatGPT integration fails on Flow Action Cards / THEN cards

Questions & Help
1

Hi all,

I’m trying to use the Homey integration in ChatGPT to create or edit flows.

The connection itself seems to work, but ChatGPT cannot retrieve the Flow Action Cards / THEN cards. When it calls list_flow_action_cards, it fails with this error:

MCP error -32602: Invalid structured content for tool list_flow_action_cards:
[
{
“code”: “invalid_type”,
“expected”: “array”,
“received”: “string”,
“path”: [“cards”, 615, “droptoken”],
“message”: “Expected array, received string”
}
]

Because of this, ChatGPT cannot reliably read the THEN cards and cannot properly create or update flows.

Does anyone know how to find out which app or flow card is causing card number 615?
Or is this something that needs to be fixed in the ChatGPT/Homey integration parser?

Thanks!