---
id: "AE21-025"
category: "context_engineering"
confidence: 0.94
date: "2026-02-14"
source_file: "Genesis Immortal Session Protocol"
---

# AE21-025

Pre-compaction flush should trigger proactively at ~50% context usage, not reactively at 90%+ — early flush preserves more context fidelity and prevents emergency state loss during unexpected compaction events
