# Transactions Transactions are a key component of the Stacks network and are the primary way users will interact with it. In this section, we'll cover how transactions work and give an introduction to post conditions, an additional security feature of Stacks that allows client-side developers to enforce certain conditions to protect users from interacting with malicious contracts. --- # 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.stacks.co/learn/transactions.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.