native C++23 coding agent

Bring your own model. Keep your flow.

ARN is a fast terminal companion for coding workflows. Connect Gemini or DeepSeek, give it a project folder, and review every file change before it happens.

Install for Windows View releases ↗
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arn › Create a Python Caesar cipher script
Arny wants to change files: Create caesar.py
Allow this action? [y/N]: █
Made for the terminal

Small runtime. Serious guardrails.

No Node.js, no Python runtime, and no background account. API keys and conversation history stay in memory for the active session.

✦

Gemini + DeepSeek

Choose a model per API key and keep a focused, in-memory conversation context.

↯

Streaming replies

See the model response as it is generated instead of waiting for the whole answer.

⌘

Safe file tools

Read, create, edit, and delete files only inside the launch folder—with confirmation for changes.

Windows

Install from a terminal.

Run this in PowerShell. It downloads the latest public ARN release and adds it to your user PATH.

irm https://raw.githubusercontent.com/arnecto/arn/main/scripts/install.ps1 | iex

Open a new terminal afterward, then run arn.

First session

Connect, choose a model, build.

  1. Start ARN from the folder where you want it to work.
  2. Add a key with /key-gemini or /key-deepseek, then select a model.
  3. Ask naturally. ARN asks before any file is created, edited, or deleted.