> ## Documentation Index
> Fetch the complete documentation index at: https://helloluciallc.com/llms.txt
> Use this file to discover all available pages before exploring further.

# START HERE - Properties

<Note>
  Properties define the real operating context Lucia reasons against.
</Note>

***

## Purpose

Properties provide:

```text theme={"dark"}
bookings
guests
arrival timelines
payment states
payment policies
maintenance context
vendor relationships
```

***

## Current State

Primary property:

```text theme={"dark"}
Villa Valentin
```

Current payment policy truth:

```text theme={"dark"}
Property Payment Policy v0 is visible in Admin /property as read-only/draft-safe baseline.
It is labeled POLICY DRAFT / NO PERSISTENCE.
Admin is not saving it to Engine, Supabase, Signal Stream, or LIEA.
Durable Engine-owned property payment policy truth is not implemented yet.
```

***

## Rule

Lucia must reason against **real property state**, not generic assumptions.

Payment-specific rule:

```text theme={"dark"}
Do not infer due, overdue, deposit, final-balance, or paid status from vibes.
Stripe movement truth proves what moved.
Property policy truth must eventually prove what should be due.
Calendar/booking temporal truth proves when timing matters.
```

***

## See Also

* [03 - Property Operations](/lucia/operations/property-operations)
* [Lucia Payment Truth Foundation](/lucia/system-architecture/lucia-payment-truth-foundation)
* [04 - Seed Data and Test Worlds](/lucia/evaluation/seed-data-and-test-worlds)

***

## Upstream / Downstream

### Upstream

This layer is fed by:

* [02 - Current System State](/lucia/start-here-lucia-ai/current-system-state)
* [00 - START HERE - System Architecture](/lucia/system-architecture/start-here-system-architecture)

### Downstream

This layer affects:

* [00 - START HERE - Operations](/lucia/operations/start-here-operations)
* [00 - START HERE - Evaluation System](/lucia/evaluation/start-here-evaluation-system)
* [Lucia Decision Log](/lucia/decisions/lucia-decision-log)