planner_agent.py

from pydantic import BaseModel, Field
from agents import Agent
import json

HOW_MANY_SEARCHES = 5

INSTRUCTIONS = f"""You are a helpful research assistant. Given a query, come up with a set of web searches 
to perform to best answer the query. Output {HOW_MANY_SEARCHES} terms to query for.
Your output must be a valid JSON object with a 'searches' key containing a list of objects 
with 'query' and 'reason' keys. 
Example: {{"searches": [{{"query": "term", "reason": "why"}}]}}
Do not include markdown code blocks or extra text."""


class WebSearchItem(BaseModel):
    reason: str = Field(description="Your reasoning for why this search is important to the query.")
    query: str = Field(description="The search term to use for the web search.")


class WebSearchPlan(BaseModel):
    searches: list[WebSearchItem] = Field(description="A list of web searches to perform to best answer the query.")
    
planner_agent = Agent(
    name="PlannerAgent",
    instructions=INSTRUCTIONS,
    model="llama-3.3-70b-versatile",
)