---
description: Understand the core concepts behind Cloudflare Agents, including state, tools, workflows, and memory.
title: Concepts
image: https://developers.cloudflare.com/og-docs.png
---

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> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/agents/llms.txt  
> Use this file to discover all available pages before exploring further.

# Concepts

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

* [What are agents?](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/what-are-agents/)
* [Conversation state and memory](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/conversation-state-and-memory/)
* [Tools](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/tools/)
* [Calling LLMs](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/calling-llms/)
* [Using Agents with Workflows](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/workflows/)
* [Agentic patterns](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agents/concepts/agentic-patterns/)

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