Function: attachChatTurnTraceIo()
attachChatTurnTraceIo(
app):void
Install chatTurnTraceIoMiddleware on a Mastra Express sub-app.
Call before MastraServer.init() so the layer sits ahead of the agent
routes. Safe to call unconditionally: with no active span (local, no
OTLP) the middleware is a no-op.
Parameters
Section titled “Parameters”Express
Returns
Section titled “Returns”void