The Sovereign AI Manifesto:
Architecture for the Resident Legal Agent
1. Executive Summary: The Death of the “Digital Vault”
The first generation of Legal AI (Legacy AI) relies on the “Vault Model”—synchronizing sensitive firm data to external provider clouds. This architecture is fundamentally flawed for the legal industry, as it creates a “Shadow DMS,” expands the attack surface, and forces firms to abdicate data sovereignty.
Arivu.Legal introduces the Resident Agent Architecture. Instead of moving your data to the AI, we bring the AI to your data. As a Native Resident Agent, Arivu executes entirely within your Microsoft 365 (M365) trust boundary. This white paper outlines how Arivu eliminates data egress, inherits native permissions, and maintains absolute sovereignty.
2. The “In-Situ” Engine: How Residency Works
Arivu is not a SaaS application in the traditional sense; it is a Tenant-Native Service.
- Stateless Processing: The Resident Agent operates on a stateless compute model. It reasons over your data in private, temporary memory sessions. Once a task is completed, the session is purged. No data is cached or stored in a long-term proprietary database outside your control.
- Zero-Export Indexing: Traditional AI “ingests” data into an external index. Arivu utilizes In-Situ Semantic Indexing, meaning the “map” of your firm’s intelligence stays within your Azure environment, protected by your own firewalls.
3. Permission Mirroring & The “Entra ID” Handshake
The greatest security risk in Legal AI is Permission Drift—where a user’s access is revoked in the DMS but remains active in the AI tool.
- Real-Time Inheritance: Arivu does not maintain a separate user list. It queries Microsoft Entra ID and SharePoint permissions in real-time. If a user cannot see a folder in SharePoint, the Resident Agent is “blind” to that folder for that user.
- Unified Audit Logs: Every action taken by the Resident Agent is logged directly into your Microsoft Purview Audit Log. Your IT team doesn’t need a new dashboard; they monitor Arivu using the same tools they use for Word and Outlook.
4. Competitive Threat Model: Why Residency Wins
| Threat Vector | External Vaults (Harvey) | Arivu Resident Agent |
| Data Residency | Shared External Cloud | Your Private Tenant |
| Data Control | Sync/Copy (Risk of Drift) | In-Situ (Source of Truth) |
| Access Control | Vendor-Managed | Customer-Managed (Entra ID) |
| Encryption Keys | Vendor-Held | Customer-Owned (Azure Key Vault) |
| Governance | Proprietary “Black Box” | Native Microsoft Purview |
5. The “Verification Shield” (Anti-Hallucination)
To ensure accuracy without compromising privacy, Arivu employs a dual-layer verification system:
- Internal Grounding: Every response is cross-referenced against your private M365 data with deep-linked citations.
- External Validation: Real-time API integration with CourtListener cross-references firm logic against 400M+ public court records.
- Anonymized Synthesis: When querying external public databases, Arivu scrubs all PII (Personally Identifiable Information) before the request leaves the tenant.
6. Deployment: The 14-Day Sovereign Roadmap
Because Arivu is native to M365, implementation is not a “software project”—it is an authorization.
- Day 0: IT authorizes the Arivu manifest in the M365 Admin Center.
- Day 7: The Resident Agent completes the semantic mapping of authorized SharePoint sites.
- Day 14: Full firm-wide rollout with zero data migration required.
7. Conclusion: Trust Your Own Stack
Arivu.Legal does not ask law firms to trust a new vendor with their most sensitive secrets. Instead, we allow you to leverage the multi-billion dollar security infrastructure you have already built with Microsoft.