> ## Documentation Index
> Fetch the complete documentation index at: https://guides.robylon.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Gen AI Components

> Gen AI components allow you to build intelligent automation blocks powered by AI. They use prompts, knowledge bases, and tools to generate, evaluate, or extract information from conversations.

### AI Agent

The **AI Agent block** creates a dedicated AI agent within a workflow.

* **One agent per workflow** is allowed.
* The agent is the **core driver** of automation, responsible for handling logic and conversations.
* Agents can:
  * **Call tools** (e.g., APIs, functions)
  * **Generate replies** for customers
  * **Fetch information** from the knowledge base

<Tip>
  Define clear **instructions and goals** for each AI agent to avoid overlap or misrouting across workflows.
</Tip>

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### Generate

The **Generate block** uses AI to create content or validate responses.\
Common uses:

* Generate a **reply** based on inputs and KB context
* **Evaluate** if a user’s query has been fully answered
* Summarize long responses into concise answers
* Provide **alternatives** when one reply is insufficient

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### Extract

The **Extract block** uses AI to pull structured details out of user queries, similar to **Capture**, but more flexible.\
Examples:

* Extracting an **order ID** from a free-form message
* Pulling a **date** or **location** from a user’s text
* Identifying **entities** like product names or account numbers

<Note>
  Use **Extract** when inputs are **unstructured or varied**. Use **Capture** when the format is **predictable** (e.g., fixed ID patterns).
</Note>

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