The session logId is displayed when mongosh first starts up:

mongosh --port 27500

Current Mongosh Log ID: 61c1e8daae3c0e4461f2e5c7

Connecting to: mongodb://127.0.0.1:27500/?directConnection=true&serverSelectionTimeoutMS=2000

Using MongoDB: 5.2.0-alpha-955-g164367e

Using Mongosh: 1.1.6

It would be useful if there was a way to retrieve the logId later on during a session. Perhaps as a config setting:

config.get( "logId" )

or as some sort of variable:

var sessionLogId