# Scanning Features Nightfall offers many useful features beyond its detectors, including: The ability to use [Context Rules](/developer-api/key-concepts/scanning_features/context_rules.md) and [Exclusion Rules](/developer-api/key-concepts/scanning_features/exclusion_rules.md) to narrow the scope of matches. The ability to create [Redactions](/developer-api/key-concepts/scanning_features/redaction.md) in a way that is highly configurable so that sensitive data is appropriately obfuscated. The ability to create [Policies](https://docs.nightfall.ai/docs/using-policies)[ ](/developer-api/key-concepts/scanning_features/send_alerts_using_policies.md)that determine how leaks of sensitive information should be mitigated (i.e. through alerts sent to email or Slack). --- # 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://help.nightfall.ai/developer-api/key-concepts/scanning_features.md?ask= ``` 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.