feat(skills): add autoresearch skill for autonomous research orchestration

Add a new research skill that enables continuous, self-directed research
with a two-loop architecture:

- Inner loop: Rapid experiment iteration with measurable outcomes
- Outer loop: Periodic synthesis, pattern discovery, and direction setting

Features:
- Research workspace templates (state, findings, log)
- Example project (LoRA rank study)
- Configuration options for loop intervals and auto-commit
- Integration with existing research skills (arxiv, paper-writing)

Updated research/DESCRIPTION.md to include autoresearch in the skill overview.

skills/research/DESCRIPTION.md

@@ -1,3 +1,31 @@
 ---
-description: Skills for academic research, paper discovery, literature review, domain reconnaissance, market data, content monitoring, and scientific knowledge retrieval.
+description: Skills for academic research, paper discovery, literature review, domain reconnaissance, market data, content monitoring, and scientific knowledge retrieval. Includes autoresearch for autonomous, continuous research with iterative experimentation.
 ---
+
+## Skill Overview
+
+| Skill | Purpose | Best For |
+|-------|---------|----------|
+| `autoresearch` | Autonomous research orchestration | Continuous experimentation, hypothesis testing, benchmark optimization |
+| `arxiv` | Search academic papers | Literature surveys, paper discovery |
+| `research-paper-writing` | Write publication-ready papers | Final paper generation |
+| `blogwatcher` | Monitor research blogs | Staying current with new developments |
+| `llm-wiki` | LLM knowledge base | Quick reference on models and techniques |
+| `polymarket` | Prediction market data | Research on market trends and predictions |
+
+## Getting Started with Research
+
+**Quick literature search:**
+```
+/arxiv "transformer attention mechanisms"
+```
+
+**Start autonomous research:**
+```
+/autoresearch "Does LoRA rank affect convergence speed?"
+```
+
+**Write a paper:**
+```
+/research-paper-writing
+```