tools/search_tool.py

from duckduckgo_search import DDGS

def search_duckduckgo(query: str) -> str:
    summary = ""
    with DDGS() as ddgs:
        results = ddgs.text(query, max_results=3)
        for result in results:
            summary += f"{result['title']}: {result['body']}\n"
    return summary or "No relevant results found."