# Core The Definitive Core uses an event-driven architecture to handle high throughput on-chain events at scale. The core is responsible for receiving and publishing events onto a single source-of-truth stream to be consumed and acted upon by components. The core is off-chain and proprietary to Definitive. **Components** - As events are published to the core, components with various responsibilities will subscribe and react to these events. Components manage all sorts of positions and react to market or on-chain events to effectively manage those positions. **Feeders** - Components require data from 3rd party sources to execute on strategies. Data may include trades (market makers), market data (price feeds), and on-chain events (mempool and confirmations). Feeders will decode and translate events across multiple chains and data sources. **Performers/Keepers** - Components may require actions to be taken on 3rd party services, such as interacting with liquidity providers, lending pools, or bridges. Performers are responsible for reliably executing the desired action, optimizing transactions for speed, gas efficiency — employing different techniques for MEV resistance. **Engines** - A group of components that form the “brain” of the computation. Grouping components allow for breaking down complex tasks into composable building blocks. --- # 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.definitive.fi/developers/technical-overview/core.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.