app.py

import yaml
import os
import base64
from smolagents import GradioUI, CodeAgent, OpenAIModel
from opentelemetry.sdk.trace import TracerProvider
from openinference.instrumentation.smolagents import SmolagentsInstrumentor
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
from opentelemetry.sdk.trace.export import SimpleSpanProcessor

# Get current directory path
CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))

from tools.web_search import WebSearchTool as WebSearch
from tools.visit_webpage import VisitWebpageTool as VisitWebpage
from tools.suggest_menu import SimpleTool as SuggestMenu
from tools.catering_service_tool import SimpleTool as CateringServiceTool
from tools.superhero_party_theme_generator import SuperheroPartyThemeTool as SuperheroPartyThemeGenerator
from tools.final_answer import FinalAnswerTool as FinalAnswer



model = OpenAIModel(
    model_id='gemini-2.5-flash-lite',
    api_base="https://generativelanguage.googleapis.com/v1beta/openai/",
    api_key=os.getenv("GEMINI_API_KEY"),
)

web_search = WebSearch()
visit_webpage = VisitWebpage()
suggest_menu = SuggestMenu()
catering_service_tool = CateringServiceTool()
superhero_party_theme_generator = SuperheroPartyThemeGenerator()
final_answer = FinalAnswer()


with open(os.path.join(CURRENT_DIR, "prompts.yaml"), 'r') as stream:
    prompt_templates = yaml.safe_load(stream)

# Langfuse tracing setup
LANGFUSE_PUBLIC_KEY=os.environ["LANGFUSE_PUBLIC_KEY"]
LANGFUSE_SECRET_KEY=os.environ["LANGFUSE_SECRET_KEY"]
LANGFUSE_AUTH=base64.b64encode(f"{LANGFUSE_PUBLIC_KEY}:{LANGFUSE_SECRET_KEY}".encode()).decode()
os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"] = "https://cloud.langfuse.com/api/public/otel" # EU data region
# os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"] = "https://us.cloud.langfuse.com/api/public/otel" # US data region
os.environ["OTEL_EXPORTER_OTLP_HEADERS"] = f"Authorization=Basic {LANGFUSE_AUTH}"
trace_provider = TracerProvider()
trace_provider.add_span_processor(SimpleSpanProcessor(OTLPSpanExporter()))
SmolagentsInstrumentor().instrument(tracer_provider=trace_provider)

agent = CodeAgent(
    model=model,
    tools=[web_search, visit_webpage, suggest_menu, catering_service_tool, superhero_party_theme_generator],
    managed_agents=[],
    max_steps=10,
    verbosity_level=2,
    planning_interval=None,
    name=None,
    description=None,
    executor_type='local',
    executor_kwargs={},
    max_print_outputs_length=None,
    prompt_templates=prompt_templates
)
if __name__ == "__main__":
    GradioUI(agent).launch()