Mirascope

from mirascope import llm, ops

@llm.tool
def library(genre: str) -> list[str]:
    """Search library for books by genre."""
    books = {
        "sci-fi": ["Dune", "Foundation"],
        "fantasy": ["The Name of the Wind", "The Way of Kings"],
    }
    return books.get(genre, [])

@ops.version()  # Automatic versioning, tracing, and cost tracking
@llm.call(
    "openai/gpt-5.2",
    tools=[library],
    thinking={"include_thoughts": True},
)
def librarian(query: str) -> str:
    return query

# Agent Loop
response = librarian("Recommend some sci-fi books")
while response.tool_calls:
    tool_outputs = response.execute_tools()
    response = response.resume(tool_outputs)

print(response.text())