afsar

A simple, student-friendly procedural Python library providing a uniform interface to LLMs. afsar prioritizes installed local coding agents (claude-code, antigravity) so students can use their existing agents and tools, and smoothly falls back to remote cloud APIs (Gemini, OpenAI).

Installation

Install via pip:

pip install afsar

Quickstart

1. Basic Text Query

import afsar

# Setup is explicit and required once before asking
afsar.setup()

answer = afsar.ask("How do you define a function in Python?")
print(answer)

2. Structured Output with @dataclass

You don't need Pydantic to get typed objects. Standard Python dataclasses work out of the box:

from dataclasses import dataclass
import afsar


@dataclass
class QuizQuestion:
    question: str
    points: int
    topic: str


afsar.setup()
quiz = afsar.ask("Create a beginner Python question.", schema=QuizQuestion)

print(quiz.question)
print(f"Points: {quiz.points}")
print(f"Topic: {quiz.topic}")

3. Raw JSON Output

If you just want a JSON-formatted string:

import afsar

afsar.setup()
raw_json = afsar.ask("List 3 Python data structures.", format="json")
print(raw_json)  # Returns clean JSON string

4. Student Coding Exercises (Local Tools)

When using local agents (claude or agy), afsar defaults to tools=["python", "files"]. This allows asking the agent to write and test code locally:

import afsar

afsar.setup()
response = afsar.ask(
    "Write a solution to check if a word is a palindrome, save it to palindrome.py, run it with python, and show the result."
)
print(response)

Remote APIs (Gemini & OpenAI)

Remote models do not support local file or execution tools. When connecting to remote APIs, explicitly pass tools=[]:

import afsar

# Using Gemini
afsar.setup(provider="gemini", api_key="YOUR_GEMINI_KEY", tools=[])

# Or using OpenAI
afsar.setup(provider="openai", api_key="YOUR_OPENAI_KEY", tools=[])

answer = afsar.ask("Explain recursion in simple terms.")
print(answer)

Auto-Detection & Priority

Calling afsar.setup() without arguments automatically searches for available providers in this order:

1. Claude Code CLI (claude) in PATH
2. Antigravity CLI (agy) in PATH
3. Google Gemini (GEMINI_API_KEY in environment)
4. OpenAI (OPENAI_API_KEY in environment)

You can override the provider explicitly in code:

afsar.setup(provider="agy")

Or via the AFSAR_PROVIDER environment variable:

export AFSAR_PROVIDER=agy

Exceptions

• NotSetupError: Raised if afsar.ask() is called before afsar.setup().
• UnsupportedFeatureError: Raised if requesting local tools (tools=["python", "files"]) on remote API providers.
• ModelNotFoundError: Raised if no supported local CLI or remote API key is discovered.
• ExecutionError: Raised if a CLI command or remote API request fails.