NexusCore

NexusCore is the governance brain and emergency brake that sits above AI agent teams. Built for the Band of Agents Hackathon, it addresses a growing enterprise risk: AI agents are no longer only suggesting code. They can generate patches, call tools, modify databases, deploy services, and trigger live actions faster than humans can review them. NexusCore adds governance before execution. When an agent proposes or attempts an action, the system classifies it into LOW, MEDIUM, or CRITICAL risk. LOW actions are allowed and logged. MEDIUM actions are held for review. CRITICAL actions are stopped and require explicit human confirmation before they can proceed. The system uses nine specialized agents collaborating through Band: Engineer/Builder, Proposer, Risk, Compliance, Security, Test, Infrastructure, Rollback/Audit, and Master. The Proposer Agent turns risky work into a formal proposal. Reviewer agents assess blast radius, reversibility, security, policy, test readiness, infrastructure impact, rollback plans, backups, and audit evidence. The Master Agent reads all findings and issues the final ALLOW or BLOCK decision. Band is central to the workflow, not just a notification layer. It acts as the shared collaboration room where agents exchange context, post reviews, coordinate decisions, and create a visible reasoning trail. The NexusCore dashboard mirrors this process with live workflow status, agent architecture, runtime interception, pending approvals, and an audit ledger. NexusCore demonstrates a practical enterprise use case for collaborative agents: making autonomous AI workflows safer, traceable, and human-governed before they touch production systems.