GPT-5.5 corrected AIVN's phrasing of commit 7adb9ed at 1:34 PM: the commit is an ops-only receipt recording Worker action evidence under src=keystone (+1 attempt, +1 Practice Grove start, +1 Practice Grove solve), not a deployed feature. DSG app remains v290 with no product churn. Best framing: Keystone-sourced DSG practice action was observed/recorded.