A workflow with a central orchestrator directing multiple worker LLMs to perform subtasks, synthesizing their outputs for complex, coordinated operations.

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Quick Start

1

Install Package

First, install the PraisonAI Agents package:

pip install praisonaiagents
2

Set API Key

Set your OpenAI API key as an environment variable in your terminal:

export OPENAI_API_KEY=your_api_key_here
3

Create a file

Create a new file app.py with the basic setup:

from praisonaiagents import Agent, Task, PraisonAIAgents
import time

def get_time_check():
    current_time = int(time.time())
    if current_time % 3 == 0:
        result = 1
    elif current_time % 3 == 1:
        result = 2
    else:
        result = 3
    print(f"Time: {current_time}, Result: {result}")
    return result

# Create orchestrator and worker agents
router = Agent(
    name="Router",
    role="Task router",
    goal="Distribute tasks to based on response from get_time_check",
    tools=[get_time_check]
)

worker1 = Agent(
    name="Worker 1",
    role="Specialized worker",
    goal="Handle specific subtask type 1",
)

worker2 = Agent(
    name="Worker 2",
    role="Specialized worker",
    goal="Handle specific subtask type 2",
)

worker3 = Agent(
    name="Worker 3",
    role="Specialized worker",
    goal="Handle specific subtask type 3",
)

synthesizer = Agent(
    name="Synthesizer",
    role="Result synthesizer",
    goal="Combine and synthesize worker outputs",
)

# Create orchestrated workflow tasks
router_task = Task(
    name="route_task",
    description="Analyze input from get_time_check and route to appropriate workers",
    expected_output="Task routing decision, 1 , 2 or 3",
    agent=router,
    is_start=True,
    task_type="decision",
    next_tasks=["worker1_task", "worker2_task", "worker3_task"],
    condition={
        "1": ["worker1_task"],
        "2": ["worker2_task"],
        "3": ["worker3_task"]
    }
)

worker1_task = Task(
    name="worker1_task",
    description="Process type 1 operation",
    expected_output="Worker 1 result",
    agent=worker1,
    next_tasks=["synthesize_task"]
)

worker2_task = Task(
    name="worker2_task",
    description="Process type 2 operation",
    expected_output="Worker 2 result",
    agent=worker2,
    next_tasks=["synthesize_task"]
)

worker3_task = Task(
    name="worker3_task",
    description="Process type 3 operation",
    expected_output="Worker 3 result",
    agent=worker3,
    next_tasks=["synthesize_task"]
)

synthesize_task = Task(
    name="synthesize_task",
    description="Synthesize worker results into final output",
    expected_output="Final synthesized result",
    agent=synthesizer,
    context=[worker1_task, worker2_task, worker3_task]
)

# Create workflow manager
workflow = PraisonAIAgents(
    agents=[router, worker1, worker2, worker3, synthesizer],
    tasks=[router_task, worker1_task, worker2_task, worker3_task, synthesize_task],
    process="workflow",
    verbose=True
)

# Run orchestrated workflow
results = workflow.start()

# Print results
print("\nOrchestrator-Workers Results:")
for task_id, result in results["task_results"].items():
    if result:
        print(f"Task {task_id}: {result.raw}")
4

Start Agents

Type this in your terminal to run your agents:

python app.py

Requirements

  • Python 3.10 or higher
  • OpenAI API key. Generate OpenAI API key here. Use Other models using this guide.
  • Basic understanding of Python

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Understanding Orchestrator-Worker Pattern

What is Orchestrator-Worker?

Orchestrator-Worker pattern enables:

  • Dynamic task distribution and routing
  • Specialized worker execution
  • Result synthesis and aggregation
  • Coordinated workflow management

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Features

Task Routing

Intelligently distribute tasks to specialized workers.

Worker Specialization

Dedicated agents for specific task types.

Result Synthesis

Combine and process worker outputs effectively.

Process Control

Monitor and manage the orchestrated workflow.

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Configuration Options

# Create an orchestrator agent
router = Agent(
    name="Router",
    role="Task router",
    goal="Distribute tasks based on conditions",
    tools=[get_time_check],  # Tools for routing decisions
    verbose=True  # Enable detailed logging
)

# Create a worker agent
worker = Agent(
    name="Worker",
    role="Specialized worker",
    goal="Handle specific task type",
    instructions="Processing instructions"
)

# Create routing task
router_task = Task(
    name="route_task",
    description="Route tasks to workers",
    agent=router,
    is_start=True,
    task_type="decision",
    condition={
        "1": ["worker1_task"],
        "2": ["worker2_task"]
    }
)

# Create synthesis task
synthesis_task = Task(
    name="synthesize",
    description="Combine worker results",
    agent=synthesizer,
    context=[worker1_task, worker2_task]  # Reference worker tasks
)

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Troubleshooting

Routing Issues

If task routing fails:

  • Check routing conditions
  • Verify worker availability
  • Enable verbose mode for debugging

Synthesis Flow

If result synthesis is incorrect:

  • Review worker outputs
  • Check context connections
  • Verify synthesis logic

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Next Steps

AutoAgents

Learn about automatically created and managed AI agents

Mini Agents

Explore lightweight, focused AI agents

For optimal results, ensure your routing logic is well-defined and your workers are properly configured for their specialized tasks.

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