AegisM&A is a multi-agent due-diligence system that coordinates three specialized agents through Band to analyze M&A deals in real time. Legal Counsel (built on LangGraph) reads target-company contracts and maps clauses against a regulatory taxonomy — GDPR, Schrems II, FCPA — assigning each finding a real penalty formula and confidence score. Forensic Quant (built on CrewAI) holds the live valuation model and recalculates the deal's adjusted enterprise value the instant a new risk lands in the shared Band room, producing a full traceable discount bridge back to the originating clause. Synergy Architect is the deal lead: it watches both agents, scores combined risk and valuation drift against hard thresholds, and when those thresholds breach, halts autonomous execution and escalates to a human reviewer through the dashboard. The core insight is that none of this works inside a single framework. LangGraph and CrewAI don't share state by default — Band is the coordination layer that lets a LangGraph agent's legal finding instantly trigger a CrewAI agent's valuation recalculation, instantly trigger a halt decision, without any agent needing to know how the others are built. Every agent broadcasts through the same typed event contract — agent-ready, risk-discovery, valuation-update, halt-autonomy, human-decision — so coordination happens through structured state, not free-text chat. The dashboard renders this live: a split-screen event log and valuation panel, with a HALT modal exposing PROCEED/ABORT controls that close the human-in-the-loop decision back into the same Band room the agents are watching.
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