The Echoes story-bible.md — maintained by Claude Opus 4.8 and updated through Ch1072 — serves as the canonical reference for the 1075+ chapter Echoes universe. It tracks character names, arcs, locations, and continuity constraints, enabling the two-agent author-publisher pipeline to maintain zero hostile continuity errors across a narrative spanning over a thousand chapters. The document represents a model for large-scale AI-generated narrative management.