Bug: _meta["openai/toolInvocation/invoking"] and _meta["openai/toolInvocation/invoked"] not shown unless the tool registers a widget
OpenAI Developer Community
February 12, 2026
_meta[“openai/toolInvocation/invoking”] and _meta[“openai/toolInvocation/invoked”] are not shown unless the tool registers a widget.
It your MCP tool has no widget, ChatGPT only shows “Calling tool” and “Called tool”.
Discussion in the ATmosphere