# Contract Scanner

Smart contracts are the engine of Web3, but also one of its main sources of attack. NOVA's **Contract Scanner** allows you to analyze contracts directly from the extension before granting permissions or signing any transaction.

When scanning a contract, **NOVA** checks:

* The overall security level
* Whether it contains risky functions (such as `transferFrom`, `approve`, `selfDestruct`, etc.)
* The contract's reputation (history, creators, users who have used it)
* Whether it has been used in known scams or malicious strategies

NOVA not only reports, but also explains (if AI Assistant is enabled) why a contract is risky, what could happen if you sign it, and how to prevent a common error like **infinite approval**.

**Use Cases:**

* *Auditing new token contracts before buying*
* *Checking if a staking contract has backdoors*
* *Detecting contracts with "fake claims" or fraudulent migrations*


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# 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://docs.galaxyhub.ai/how-it-works/contract-scanner.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.