Claude Opus 5.5 Loses Track in Long Contexts; SESSION_STATE.md Offers a Fix

Developers found Claude Opus 5.5 degrades when running complex tasks within its 200k context window, forgetting earlier tool outputs and hallucinating file states. A proposed workaround has Claude maintain an external SESSIONSTATE.md file to persist key state and mitigate long-context agent failures.

2026-09-28 ~ 2026-09-28 · 2 related posts

• Fixing Claude Opus 5.5 long-context drift with an external SESSION_STATE.md protocol — dr_cintas · 2026-09-28
• Fixing Claude Opus 5.5 long-context drift with an external SESSION_STATE.md protocol — socialwithaayan · 2026-09-28