Butterfish Shell

Butterfish Shell targets people who work from the command line and adds AI prompting to the shell, using OpenAI or compatible APIs. It functions like GitHub Copilot for shell, allowing prompts to be issued by starting a command with a capital letter and incorporating shell history for context.

The tool starts a new shell instance when invoked, intercepts input/output, and routes prompts to the AI while streaming responses back to the terminal. It aims to provide a high-context AI help experience exactly when needed, without copy/paste.

Butterfish Shell supports features like autosuggested commands, customizable prompts stored in a config file, and the ability to select different AI models. It also includes a mode where an agent can execute commands to reach a goal, with user input continuing the conversation.

The tool emphasizes openness and distribution under the MIT license, with installation options for Homebrew on macOS and go install for Linux, and notes about how to configure prompts and model base URLs.

Use cases

• Assistance with shell commands and debugging by asking contextual questions using the shell history
• Automated command suggestions and execution via Goal Mode