RHENIUS | Private Personal Relationship Management & AI Intelligence

RHENIUS — Cryptographic Personal Relationship ManagementAn open, private, local-first relationship intelligence platform with client-side Zero-Knowledge encryption, autonomous AI action agents, and generational social memory.System Invariants & Security Guarantees

Local-First Architecture: Client-side storage (IndexedDB / LocalStorage) with optional end-to-end encrypted synchronization. All data belongs to the user.

Paillier Homomorphic Reciprocity: Debts, loans, and mutual favors are netted directly in ciphertext space (Enc(a) · Enc(b) = Enc(a+b) mod n²) so the server never observes plaintext balances.

Cryptographic Authentication: Argon2id (RFC 9106) password derivation and SHA-256 session token hashing. No plaintext credentials ever reach persistent storage.

Autonomous AI Omnibar: Multi-turn natural language action engine with 4-valued grounding (SUPPORTED, UNSUPPORTED, AMBIGUOUS, UNKNOWN) and atomic, reversible mutations.

Zero Telemetry: No tracking scripts, no behavioral analytics, no third-party cookies, and complete user isolation.

Core Application Views & Modules

Dashboard: Executive relationship command center, morning briefing, and touchpoint cadence health scores.

Directory & Contacts: Complete network ledger with multi-tag filtering, custom attributes, and 1-page pre-meeting briefing sheets.

2D/3D Relationship Graph: Interactive force-directed canvas mapping interpersonal connections, cluster synergies, and intimacy gradients.

Reciprocity Ledger: Homomorphic debt and gift tracking with mathematical netting.

World Map & Itinerary: Geographic distribution of connections with travel itinerary synthesis.

Journal & Chronology: Daily notes with entity tagging and automatic interaction tracking.

Deals & Opportunities: Lightweight pipeline tracking deals from lead to close.

Family Tree & Pedigree: Multi-generational genealogy canvas with standard GEDCOM 5.5 import/export.

Settings: Argon2id key management, BYOK OpenRouter model configuration, and export utilities.

Public & Machine-Readable DocumentsRhenius is a private, sign-in gated application. The public endpoints below provide canonical machine-readable schemas, policies, and navigation indices for indexers and AI agents:

Application — Sign-in and relationship intelligence workspace

Cookie Policy — Every browser storage entry, with purposes and lifetimes

Crawler Directory — Machine-readable description for indexers

XML Sitemap — Machine-readable sitemap for indexers

LLMs.txt — Machine-readable map for AI crawlers

LLMs-Full.txt — Complete API schemas and documentation

OpenAPI specification — Machine-readable API contract