multi_tool_search_agent

Multi-Tool Search Agent (Web Search Demo)

A modular search implementation demonstrating ADK's agent delegation pattern.

Overview

This demo showcases:

• ADK's agent delegation pattern
• Exa search implementation for flexible web searches
• Root agent architecture for task orchestration
• Processing and structuring search results

Technical Pattern

Uses a root agent with sub-agent delegation:

• RootAgent: Orchestrates the workflow and delegates search tasks
• ExaSearchAgent: Specialized agent to perform web searches using Exa API

Setup

1. Set up environment variables:

cp .env.example .env

2. Edit the .env file with your API keys:

NEBIUS_API_KEY="your_nebius_api_key_here"
NEBIUS_API_BASE="https://api.studio.nebius.ai/v1"
EXA_API_KEY="your_exa_api_key_here"

Usage

Run with ADK CLI:

# Terminal - Run directly in the terminal
adk run multi_tool_search_agent

# Dev UI - Visual interface for testing and debugging
adk web

Required API Keys

• Nebius Token Factory - For LLM inference
• Exa - For web search

Key Features

The agent demonstrates an important ADK pattern where the root agent doesn't perform tasks directly but delegates to specialized sub-agents:

# RootAgent: Orchestrates the workflow
root_agent = Agent(
    name="root_agent",
    model=LiteLlm(model="openai/meta-llama/Meta-Llama-3.1-8B-Instruct",
        api_base=os.getenv("NEBIUS_API_BASE"),
        api_key=os.getenv("NEBIUS_API_KEY")
    ),
    description="Root agent that coordinates search and reporting.",
    instruction="Delegate search tasks to exa_search_agent.",
    tools=[],
    sub_agents=[exa_search_agent]
)

This pattern allows for modular agent design where specialized capabilities can be added through new sub-agents.