# Off-Chain Layer

**Risk Evaluation Engine**: A rule-based scoring system that analyzes wallet behavior, transaction history, and known threat patterns using predefined heuristics — no ML required.

**Risk Aggregator**: Weights various features and feeds into a Sigmoid classifier.

**Metadata Filter**: Flags any IP addresses, device IDs, or webhook traces tied to wallet activity.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://hexlys-organization.gitbook.io/hexly-ai-docs/technical-architecture/off-chain-layer.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.