01 · Intent
Probabilistic input
AI agents propose operational actions with confidence scores and reasoning traces, across any domain.
Open-source protocol
Nexus Execution Protocol (NEP)
The universal deterministic commit boundary for high-risk AI. NEP sits between probabilistic models and operational systems that must never misfire.
The core engine is open source and domain agnostic. Domain Energy Plugins encode sector rules. The boundary law is absolute: P(H executes | e > 0) = 0.
The problem
AI models are probabilistic. High-risk operations are not.
Agentic systems propose across finance, healthcare, and critical infrastructure. NEP inserts a deterministic evaluation layer between model output and execution. Domain Energy Plugins supply the energy function. The core engine enforces the boundary.
02 · Evaluation
Domain Energy Plugin
The active @nexus/* plugin computes violation energy e against industry-specific rule sets. Non-compliant intents are blocked at the boundary.
03 · Commit
Deterministic execution
Only policy-cleared actions reach the commit layer. Each commit is sealed with a cryptographic audit record.
Protocol capabilities
Built for the gap between models and mandates
Universal commit boundary
NEP standardizes how agentic systems commit across regulated domains. One protocol layer, any downstream system.
Rules before models
Institutional policy is encoded as executable logic, not documentation. The engine evaluates every action against absolute rules, regardless of model output.
Sub-second policy resolution
Complex multi-entity, multi-jurisdiction checks resolve in milliseconds. Human approval gates attach only where policy requires them.
Domain Energy Plugins
Industry rule sets on one engine
@nexus/finance
Finance
Institutional financial workflows
Blocks unverified transactions above $50k without dual approval and audit trail.
@nexus/healthcare
Healthcare
EU AI Act alignment
Blocks EMR updates when patient identity fields fail deterministic match.
@nexus/defense
Defense & Critical Infra
Rules of Engagement (RoE)
Enforces cryptographic dual-key signatures before any operational commit.
Open source
core engine
Domain plugins
industry rule sets
Audit-ready
evidence layer
Deploy the protocol layer
NEP is available through a private deployment program for regulated institutions. Request access or start an enterprise conversation with the Hardalion team.