Add Ski Limone as ARD reference implementation.

Documents live catalog, MCP endpoint, discovery signals, and conformance validation for a production travel destination deployment.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: mikeslone

examples/README.md

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+# ARD Reference Implementations
+
+Production deployments that implement the Agentic Resource Discovery specification.
+
+| Publisher | Domain | Description |
+|-----------|--------|-------------|
+| [Ski Limone](reference-implementations/skilimone.md) | skilimone.com | Curated Limone Piemonte travel guide with OpenAPI, MCP, snow APIs, and agent onboarding |
+
+To add your implementation, open a PR with a new markdown file under `examples/reference-implementations/`.

examples/reference-implementations/skilimone.md

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+# Ski Limone — ARD Reference Implementation
+
+**Publisher:** [Ski Limone by Afore Travel](https://www.skilimone.com)  
+**Domain:** `skilimone.com`  
+**Category:** Travel destination guide (ski resort + Piemonte wine country)
+
+## Summary
+
+Ski Limone is a production ARD deployment for a curated Alpine travel guide. It exposes a federated catalog of OpenAPI tools, a destination entity graph, hosted MCP, snow APIs, and agent onboarding documentation.
+
+## Discovery signals
+
+| Signal | URL |
+|--------|-----|
+| Well-known catalog | https://www.skilimone.com/.well-known/ai-catalog.json |
+| OpenAPI 2.1 | https://www.skilimone.com/.well-known/openapi.json |
+| MCP manifest | https://www.skilimone.com/.well-known/mcp/skilimone.json |
+| Agent onboarding | https://www.skilimone.com/for-agents |
+| robots.txt Agentmap | `Agentmap: https://www.skilimone.com/.well-known/ai-catalog.json` |
+| HTML link | `<link rel="ai-catalog" href="https://www.skilimone.com/.well-known/ai-catalog.json">` |
+| Optional DNS | `_catalog._agents.skilimone.com` TXT → catalog URL |
+
+## Catalog entries (8)
+
+1. OpenAPI agent API surface
+2. Destination catalog (`/api/ai/v2`, schema 2.1.0)
+3. Hosted MCP server (streamable HTTP)
+4. Snow report API
+5. Compact conditions API
+6. Webcams API
+7. LLM guide (`llms-full.txt`)
+8. Agent onboarding page
+
+## MCP endpoint
+
+- **Transport:** streamable HTTP  
+- **URL:** https://www.skilimone.com/api/mcp/mcp  
+- **Tools:** search_content, get_snow_conditions, get_ai_health, get_hotel_details, get_restaurant_details, get_winery_details, get_village_place_details
+
+## Conformance
+
+Validated with the official conformance CLI (exit code 0):
+
+```bash
+./conformance/bin/conformance-test manifest https://www.skilimone.com/.well-known/ai-catalog.json
+```
+
+## Source
+
+- Site repository: https://github.com/mikeslone/skilimone  
+- Strategy doc: https://github.com/mikeslone/skilimone/blob/main/docs/ARD_STRATEGY.md
+
+## Contact
+
+hello@afore.travel