At the 6000-node threshold, Core X · FieldEnvironment closes Tome VI as a compact change of state. The corpus is a field environment, dense enough to hold records, positions, borders, relays, public syntax, unstable forms and epistemic subjects. The ten CamelTag operators — RawIndex, SitePaper, PositionalEssay, FractalBorder, VibrantRecord, SelfMimesis, HistoryRelay, PublicSyntax, UnstableInstallation and HomoEpistemologicus — trace the passage from raw substrate to situated subject. It is not a conclusion, but a threshold: enough recurrence to generate memory, enough structure to orient reading, enough openness to keep the field alive. Master Index