`coder_agent` METADATA not working in Coder API

When using coder agent metadata, the behaviour is correct in the UI (the value is displayed based on the script definition), but when calling

curl -X GET http://coder-server:8080/api/v2/users/{user}/workspace/{workspacename}

curl -X GET http://coder-server:8080/api/v2/users/{user}/workspace/{workspacename}

. The instance that has the agent assigned has a json parameter

agents

agents

, but there is no corresponding metadata to the one defined in the coder agent. How to access coder agent metadata?