# Letter Heads

- **Event:** [Hospitality 2030: A Rosewood Sand Hill Hackathon](https://cerebralvalley.ai/e/rosewood-hospitality-2030)
- **When:** Sat, May 16 at 9:00 AM – 10:00 PM (PDT)
- **Where:** Rosewood Sand Hill, Menlo Park, CA
- **Team:** [Siddharth Bhat](https://cerebralvalley.ai/u/Sid42), [Anmol Sharma](https://cerebralvalley.ai/u/Anmols)
- **GitHub:** https://github.com/Anmol-tech/RoseWood-Letter
- **Demo video:** https://drive.google.com/file/d/1VoiZrzLbpZx9bNY40MulWyz3jWd5WV2X/view?usp=sharing
- **Gallery:** https://cerebralvalley.ai/e/rosewood-hospitality-2030/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/rosewood-hospitality-2030/hackathon/gallery/39

The Rosewood Letter is a multi-agent AI pipeline that runs silently overnight and produces a single, deeply personalized document delivered physically under the guest's door at 6AM and digitally via email with a link to their private guest page. It reasons about why a guest is there: an Intent Agent produces a visit worldview that governs every decision downstream. A World Agent pulls hyperlocal conditions, a Rhythm Agent designs the emotional arc of the day, a Discovery Agent surfaces one non-obvious local find, and a Temporal Resonance Layer finds a quietly uncanny coincidence in the calendar. The letter arrives scented, typeset, and human.

When the guest scans the QR code, they reach a clean, no-navigation personal page styled to their visit mood restoration, milestone, celebration, or event. It streams their ElevenLabs voice note automatically, renders an interactive crossword where every answer is a hidden recommendation, shows a suggested nearby location with live distance and travel time, and presents a one-tap reservation panel. From there, guests select itinerary items from the letter dining notes, spa arrangements, evening plans and confirm with a single button. A confirmation lands in their inbox via SendGrid. The AI disappears. The morning remains.

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Markdown version of https://cerebralvalley.ai/e/rosewood-hospitality-2030/hackathon/gallery/39. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt