Fortify ·

Fortify (fortify-ai-cli) is a developer-focused terminal assistant that helps you explain errors, generate commit messages, summarize codebases, and streamline daily workflows directly from the CLI.

Built for developers who live in the terminal.

Demo

Features

• Streaming AI responses directly in terminal
• Git-aware commit message generation
• Error and stack trace explanation
• File and folder summarization
• Interactive chat mode
• Local CLI configuration and chat history persistence
• Clean terminal UX with colors, prompts, and spinners

Example workflow:

# Explain a stack trace
fortify explain ./logs/error.txt

# Generate a commit message from staged changes
fortify commit --style conventional

# Summarize a codebase
fortify summarize ./src

# Interactive AI chat
fortify chat

# Inspect saved chat sessions
fortify history --list

Requirements

• Node.js 20+
• An OpenAI API key with billing or credits enabled

Get your API key here:

https://platform.openai.com/api-keys

Installation

Install globally:

npm install -g fortify-ai-cli

The installed command is:

fortify

Run directly without installing:

npx fortify-ai-cli --help

Quick Start

Authenticate once:

fortify auth

This stores your API key locally in:

~/.fortify/config.json

Then start using Fortify:

fortify chat
fortify explain ./crash.log
fortify commit
fortify summarize ./src
fortify history --list

Use help anytime:

fortify --help
fortify <command> --help

History Storage

Fortify stores local chat history in:

~/.fortify/history

Use:

fortify history --list
fortify history --show <session-id>
fortify history --clear

Cancellation Behavior

All interactive and streaming flows handle Ctrl+C gracefully:

• In fortify chat, Ctrl+C exits the chat loop cleanly.
• During streaming commands (explain, summarize, commit), Ctrl+C cancels the active generation without noisy stack traces.
• Cancelled flows return exit code 130.

Configuration

Example configuration:

{
  "modelPreferences": {
    "defaultModel": "gpt-5.4",
    "fallbackModels": ["gpt-5.3", "gpt-5.4-mini"]
  }
}

If your OpenAI account has no billing or credits enabled, requests will fail regardless of fallback models.

Manage billing here:

https://platform.openai.com/account/billing

Package Name vs CLI Name

The npm package is published as:

fortify-ai-cli

because the shorter package name was unavailable on npm.

The installed CLI command remains:

fortify

Built With

• Node.js
• Commander.js
• OpenAI Responses API
• Streaming async iterators
• Chalk
• Ora
• Inquirer

License

MIT - see LICENSE