Codex currently does not support statefulMode: stateful

What feature would you like to see?

Problem
The MCP (Model Context Protocol) functionality in Codex currently does not support statefulMode: stateful. It only works with statefulMode: stateless, which limits the ability to maintain conversation context across multiple interactions.

Current Behavior
MCP integration only functions properly when configured with statefulMode: stateless
Attempting to use statefulMode: stateful results in incompatibility issues
Expected Behavior
MCP functionality should support both stateful and stateless modes to allow users to:

Maintain conversation context across multiple requests
Preserve state information for more coherent multi-turn interactions
Have flexibility in choosing the appropriate mode for their use case
Configuration Example
javascript

// Currently only this works:
{
statefulMode: "stateless"
}

// This should also be supported:
{
statefulMode: "stateful"
}
Impact
This limitation affects users who need persistent context in their MCP-based workflows, requiring them to work around the stateless constraint.

Additional information

_No response_