# Reaction - [Data Webhook](https://docs.sigrex.io/reaction/data-webhook.md): A Data Webhook allows external systems to send data into TickRex. Incoming data can then be processed by Reactions, using either code-based logic or AI-powered evaluation. - [LLM Reaction](https://docs.sigrex.io/reaction/llm-reaction.md): An LLM Reaction allows TickRex to process incoming data using an AI model. - [Code Reaction](https://docs.sigrex.io/reaction/code-reaction.md): A Code Reaction lets you write custom JavaScript code that runs whenever a Data Webhook receives a request. --- # 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.sigrex.io/reaction.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.