JUB History

The JUB extension was developed on 2026-03-16 in a session with Claude Sonnet 4.6, building on the PET foundation (ax1–ax14). It was subsequently subjected to 3 rounds of adversarial critique with Claude Opus 4.6 on 2026-03-18/19.

For the complete development and critique record, see:

• JUB Development Log — ongoing JUB development logs

• LL/JUB — JUB Development Session Logs — all JUB session logs including OOv1 development and 3 rounds of adversarial critique