Expand research profile with HCT, collections, and cross-links

README.md

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-Stefan Wiest - AI Research & Engineering
+# Stefan Wiest — AI Research
+
+**Multi-Agent Coordination & Signal Theory**
+
+---
+
+## Research Focus
+
+### Harmonic Coordination Theory (HCT)
+A musical ontology for multi-agent systems addressing the "Coordination Crisis" in scaling MAS.
+
+- **[hct-spec](https://huggingface.co/stefanwiest/hct-spec)** — Protocol specification and reference implementation
+- Published CS.AI and CS.MA papers
+- 6-layer model: Transport, Orchestration, Semantic Coordination
+
+---
+
+## Curated Collections
+
+| Collection | Focus |
+|------------|-------|
+| Multi-Agent Coordination | A2A, MCP, orchestration patterns |
+| LLM Reasoning | CoT, ToT, ReAct, planning frameworks |
+| Memory & Context | RAG, hierarchical memory, context engineering |
+| Quality Monitoring | Hallucination detection, model collapse |
+| Tool Use & Execution | Toolformer, MCP, dynamic tool selection |
+| Safety & Alignment | Guardrails, constitutional AI |
+
+---
+
+## Connect
+
+- 🔧 **Engineering**: [@skew202](https://huggingface.co/skew202) — Tools, Spaces, Demos
+- 🌐 **Website**: [stefanwiest.de](https://stefanwiest.de)
+- 📝 **Writing**: [SeekingSota](https://seekingsota.com)