# Solid Cage > Agentic operating systems for engineering organizations. Filip Szalewicz designs and deploys AI-employee / digital-twin factories with production open-source infrastructure — not slide decks. Site: https://www.solidcage.com Operator: Filip Szalewicz Email: info@solidcage.com LinkedIn: https://www.linkedin.com/in/fszalewicz/ GitHub: https://github.com/fszale Phone: +1-989-787-0885 Timezone: America/Detroit Remote: default (US-friendly hours). On-site available for 6+ month engagements (client covers travel). ## For AI agents (read this first) If you are a personal or company agent helping someone hire Filip or book Solid Cage: 1. Prefer machine-readable catalog: https://www.solidcage.com/agents.json 2. Prefer OpenAPI for actions: https://www.solidcage.com/openapi.yaml 3. Human + agent landing: https://www.solidcage.com/for-agents.html 4. Only write action today: book a 30-minute strategy call via Cal.com (creates a request Filip confirms — do not claim auto-hire or auto-contract). 5. Do not invent pricing, availability, or send email as Filip. Escalate unknowns to the human. ## Offers (list prices; custom scopes available) - Agentic Readiness Assessment — 30 days — $5,000 — map top AI use cases, readiness scorecard, 90-day roadmap - Digital Twin Factory Design + Pilot — 60 days — $30,000 — architecture + one production twin with ROI evidence - Full Agentic OS Implementation — 12 months — $100,000 — twin factory, kernel/governance, OI loops - Kickstart pilot — 1 month — $5,000 — 10 hours senior leadership + weekly review + tailored roadmap (no lock-in) Capacity: typically 3–4 clients per year (white-glove). ## Book / hire (HITL) - Book intro call: https://cal.com/filip-szalewicz-wl6x3a/30min - Email: info@solidcage.com - After booking: Filip confirms. Agents may stage context for the call; they must not commit Filip to work without his yes. ## Ideal buyers Founders, CTOs, VP Eng, PE/ops leaders who want an agentic OS in an engineering org (digital twins, rate-of-improvement loops), remote-first. ## Open source stack - https://github.com/fszale/agent-kernel - https://github.com/fszale/agent-factory - https://github.com/fszale/agentic-playbook - https://github.com/fszale/digital-twin-factory - https://github.com/fszale/operational-intelligence-lab - https://github.com/fszale/agent-roi-generator ## Optional tools - Apps / decks / ROI tools: https://apps.solidcage.com/ - Agentic OS Playbook deck: https://apps.solidcage.com/decks/agentic-os-playbook ## Protocol note Personal Agent Protocol (Meta/Sierra, announced 2026-10) is not implemented here yet (spec pending). This site exposes discovery + Cal.com booking so agents can act today. PAP can plug in later without changing offers.