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

# Prompts

> Manage and optimize agent prompts

Prompts are the instructions that guide agent behavior.

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
graph LR
    subgraph "Prompt System"
        P[📝 Prompt] --> A[🤖 Agent]
        A --> B[💬 Behavior]
    end
    
    classDef prompt fill:#6366F1,stroke:#7C90A0,color:#fff
    classDef behavior fill:#10B981,stroke:#7C90A0,color:#fff
    
    class P prompt
    class A,B behavior
```

## Quick Start

<Steps>
  <Step title="Basic Prompt">
    ```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
    use praisonai::Agent;

    let agent = Agent::new()
        .name("Assistant")
        .instructions("You are a helpful assistant. Be concise and accurate.")
        .build()?;
    ```
  </Step>

  <Step title="Prompt Template">
    ```rust theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
    use praisonai::{Agent, Prompt};

    let prompt = Prompt::template(r#"
    You are a {role} assistant.
    Your expertise is in {domain}.
    Always respond in {language}.
    "#)
        .var("role", "technical")
        .var("domain", "AI")
        .var("language", "English");

    let agent = Agent::new()
        .instructions(prompt)
        .build()?;
    ```
  </Step>
</Steps>

***

## Prompt Components

| Component   | Description                |
| ----------- | -------------------------- |
| System      | Core behavior instructions |
| Context     | Background information     |
| Examples    | Few-shot examples          |
| Constraints | Rules and limitations      |

***

## Related

<CardGroup cols={2}>
  <Card title="Agent" icon="robot" href="/docs/rust/agent">
    Agent config
  </Card>

  <Card title="Optimizer" icon="wand-sparkles" href="/docs/rust/optimizer">
    Prompt optimization
  </Card>
</CardGroup>