# Mentensor
> AI Product Engineer & Design Technologist Practice directed by Mariusz Ruski.
> Bridging enterprise AI systems, Cloudflare edge architecture, and Swiss-grade interface engineering.

## Summary
Mentensor (https://mentensor.eu) is the personal engineering practice and Closing Hub of Mariusz Ruski. Mariusz acts as a high-trust Fractional AI Product Technologist and Lead Edge Systems Architect for technical founders, CTOs, and specialized engineering agencies.

## Core Competencies
- AI Design Systems & Speculative UI Engineering
- Distributed Edge Computing & Microservices (Cloudflare Workers, R2, D1, Supabase, Python/FastAPI)
- Sub-20ms Semantic Caching & Tokenomics Optimization
- Swiss-Brutalist Typographic Interfaces (Geist Sans / Geist Mono, WebGL Three.js)

## Proof of Work & Case Studies
- [GovTech Concession Platform](https://mentensor.eu/cases/govtech-ppp): Next.js 14, Supabase RLS, Cloudflare R2 streaming, FastAPI LLM contract parser.
- [Qodeca Edge Rebuild](https://mentensor.eu/cases/qodeca): -98.6% Total Blocking Time (750ms -> 10ms), Mobile PageSpeed 71+, Webflow Lumos optimization.
- [Sestry.eu Transnational Media](https://mentensor.eu/cases/sestry): Sub-50ms EU Cloudflare Workers reverse proxy, Onet.pl ATOM syndication, DeepL automated translation pipeline.
- [TAURON Nowa Energia](https://mentensor.eu/#cases): Enterprise AI design systems and internal agent interfaces.

## Commercial Terms
- Minimum Engagement Floor: $5,000 / month (Fractional Retainer) or $10,000 / sprint (Architecture Sprint).
- Inquiries: https://mentensor.eu/terminal or POST https://mentensor.eu/api/inquiry

## Machine-Readable Agent Resources
- API Catalog: https://mentensor.eu/.well-known/api-catalog
- MCP Server Card: https://mentensor.eu/.well-known/mcp/server-card.json
- A2A Agent Card: https://mentensor.eu/.well-known/agent-card.json
- Skills Index: https://mentensor.eu/.well-known/agent-skills/index.json
- ARD Manifest: https://mentensor.eu/.well-known/ai-catalog.json
- Auth Guide: https://mentensor.eu/auth.md
- Full LLM Specification: https://mentensor.eu/llms-full.txt