Agents

Create and manage AI agents with the Node.js SDK

Agents are the core building blocks in Julep. They are AI-powered entities that can execute tasks and interact with users through sessions.

Creating an Agent

const agent = await client.agents.create({
  name: 'Customer Support Agent',
  model: 'claude-3.5-sonnet',
  about: 'A helpful customer support agent that assists users with their queries',
  metadata: {
    department: 'support',
    language: 'english'
  }
});

Retrieving Agents

// Get a specific agent
const agent = await client.agents.get(agentId);

// List all agents
const agents = await client.agents.list({
  limit: 10,
  offset: 0
});

// Search agents
const searchResults = await client.agents.search({
  query: 'support',
  metadata: {
    department: 'support'
  }
});

Updating Agents

const updatedAgent = await client.agents.update(agentId, {
  name: 'Senior Support Agent',
  metadata: {
    department: 'support',
    seniority: 'senior'
  }
});

Deleting Agents

await client.agents.delete(agentId);

Managing Agent Documents

Agents can be associated with documents that provide context for their tasks:

// Add a document
const document = await client.agents.docs.create(agentId, {
  title: 'Support Guidelines',
  content: 'Here are the guidelines for customer support...',
  metadata: {
    category: 'guidelines',
    version: '1.0'
  }
});

// Search documents
const docs = await client.agents.docs.search(agentId, {
  query: 'refund policy',
  metadata: {
    category: 'policy'
  }
});

// Delete a document
await client.agents.docs.delete(agentId, documentId);

Adding Tools to Agents

Extend your agent’s capabilities by adding tools:

// Add a web search tool
const tool = await client.agents.tools.create(agentId, {
  name: 'web_search',
  description: 'Search the web for information',
  integration: {
    provider: 'brave',
    method: 'search',
    setup: {
      api_key: process.env.BRAVE_API_KEY
    }
  }
});

// Add a custom function tool
const customTool = await client.agents.tools.create(agentId, {
  name: 'calculate_price',
  description: 'Calculate the final price including tax',
  type: 'function',
  function: {
    parameters: {
      type: 'object',
      properties: {
        base_price: {
          type: 'number',
          description: 'Base price before tax'
        },
        tax_rate: {
          type: 'number',
          description: 'Tax rate as a decimal'
        }
      },
      required: ['base_price', 'tax_rate']
    }
  }
});

Error Handling

The SDK uses custom error classes for better error handling:

try {
  const agent = await client.agents.create({
    name: 'Test Agent',
    model: 'invalid-model'
  });
} catch (error) {
  if (error.name === 'ValidationError') {
    console.error('Invalid model specified:', error.message);
  } else if (error.name === 'ApiError') {
    console.error('API error:', error.message, error.status);
  } else {
    console.error('Unexpected error:', error);
  }
}

Next Steps

Tasks

Learn how to create and execute tasks

Sessions

Manage agent sessions

Tools Integration

Add more capabilities to your agents

Advanced Usage

Explore advanced patterns