Hykon S-OS: A Runtime Governance System for Conversational AI

Hykon S-OS is a runtime governance system for conversational AI and large language models that operates entirely at inference time. The system applies restrictive-only execution constraints at the conversation layer, without modifying model weights, architectures, training data, or tool access. Rather than optimizing or directing model behavior, Hykon S-OS treats conversation as a governable execution environment. It constrains how reasoning unfolds during interaction using explicit structural signals to stabilize, dampen, or halt execution under uncertainty. The framework defines a layered runtime control loop consisting of interaction invariants, diagnostic stability assessment, epistemic regulation, and a bounded constructive reasoning pipeline. All escalation paths are monotonic toward stabilization or termination, providing fail-closed guarantees against common conversational failure modes, including runaway recursion, overconfidence, structural drift, and collapse under load. Hykon S-OS is intentionally non-agentic. It introduces no autonomy, planning, goal formation, or tool control, and is designed to complement training-time alignment, safety policies, and moderation systems through transparent execution-time governance. This work is presented as a technical specification and conceptual framework for researchers interested in runtime alignment, inference-time control, conversational safety, and governance mechanisms for large language models.