your agent transcripts are the most underrated dataset you own once a week, point an agent at the last 7 days of sessions and ask for: > mistakes it keeps repeating > commands that failed more than twice > files it always gets wrong paste that list into AGENTS.md your agent gets better every week without waiting for a new model

Wes Winder@weswinder1d ago

claude code is deleting your session transcripts by default it only keeps them for 30 days then they are wiped forever but to keep them for longer (like 10 years), simply add this line to your settings.json "cleanupPeriodDays": 3650