Loops

Loops let agents repeat actions until a goal is achieved.

Quick Start

Simple Loop

use praisonai::r#loop;

let workflow = r#loop(agent)
    .until(|result| result.contains("DONE"))
    .max_iterations(5);

workflow.run("Keep improving until satisfied").await?;

With Counter

use praisonai::r#loop;

let workflow = r#loop(agent)
    .times(3);  // Run exactly 3 times

workflow.run("Generate 3 ideas").await?;

How It Works

Configuration

Option	Type	Default	Description
`max_iterations`	`usize`	`10`	Maximum loop count
`until`	`Fn`	None	Stop condition
`times`	`usize`	None	Fixed iteration count

Common Patterns

use praisonai::r#loop;

// Keep improving until quality is good
let workflow = r#loop(editor)
    .until(|result| quality_score(result) > 0.9)
    .max_iterations(5);

Retry Pattern

use praisonai::r#loop;

// Retry until success
let workflow = r#loop(api_caller)
    .until(|result| !result.contains("error"))
    .max_iterations(3);

Best Practices

Always set max_iterations

Prevents infinite loops from runaway agents.

Use clear exit conditions

Make stop conditions obvious and testable.

Conditions

Conditional logic

Parallel

Parallel execution

Rust

Quick Start

How It Works

Configuration

Common Patterns

Refinement Loop

Retry Pattern

Best Practices

Conditions

Parallel

​Quick Start

​How It Works

​Configuration

​Common Patterns

​Refinement Loop

​Retry Pattern

​Best Practices

​Related

Conditions

Parallel

Quick Start

How It Works

Configuration

Common Patterns

Refinement Loop

Retry Pattern

Best Practices

Related