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Nanoagent

Nanoagent is a minimal Python framework for an OpenAI function-calling agent that can execute bash commands and read or write files. It runs a repeated model-and-tool loop to process a task and return a result.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Nanoagent — OpenViST project profile in Agent Frameworks.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it for learning or prototyping command-line workflows that rely on bash and file read/write operations, or to examine a compact agent implementation.

Who it is for

  • Developers learning how function-calling agent loops work.
  • Python users who want a compact command-line starting point for local shell and file tasks.

Documented uses

  • Ask an agent to inspect the current directory or list files matching a pattern.
  • Read existing files or create and write new files from a natural-language instruction.
  • Combine shell and file operations, such as finding Python files and counting their lines.
  • Study or adapt a minimal model/tool interaction loop.
Before you choose

Requirements & limits

The project is a public GitHub repository with an MIT license. Its README documents local Python setup and an OpenAI API key; it does not document pricing or a hosted service.

  • The built-in capabilities are bash execution, file reading, and file writing.
  • The agent loop uses OpenAI function calling and can repeat model requests after tool results.
  • The README documents setup with pip and environment variables, plus examples for macOS/Linux and Windows shells.
  • The repository points readers interested in MCP and fetching tools in a more modern way to the separate nanoMCP project.
  • The README describes handling malformed JSON arguments and unknown tool names by returning explicit tool errors to the model.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Install and configure Nanoagent

Prepare the documented Python project and OpenAI environment settings for the command-line examples.

Before you start

  • Python and pip, as implied by the documented pip and python commands.
  • Repository files, including requirements.txt and agent.py.
  • An OpenAI API key set as OPENAI_API_KEY.

Steps

  1. Install dependencies with pip install -r requirements.txt.

  2. Set OPENAI_API_KEY in the shell environment.

  3. Optionally set OPENAI_BASE_URL and OPENAI_MODEL; the README gives examples for macOS/Linux, PowerShell, and Windows CMD.

Expected outcome

The README's documented environment setup is in place for proceeding to its command-line examples.

Guide limitations

  • This covers installation and environment configuration, not execution or successful setup verification.
  • The README's command-line examples are the next documented stage; this guide does not claim they have been run.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
7 November 2026
Original website title
sanbuphy/nanoAgent · Official homepage title · retained in its source language
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