cogni

Unix native interface for LLMs optimized for happiness.

Focus

cogni brings language model scripting (prompting) into familiar Unix environment by focusing on:

Ergonomics and accessibility in Unix shell
Composability and interop with other programs - including cogni itself
Ease of language model programming in both ad-hoc and repeatable manner

For example, designing for IO redirection (stdin, stdout) allows cogni to work with files, editor buffers, clipboards, syslogs, sockets, and many external tools without bespoke integrations.

Features

Unix-minded Design (IO redirection, composability, interop)
Ad-hoc Language Model Scripting
🚧 Repeatable Scripts via Templates
Flexible input and output formats (Text, JSON, NDJSON)
Standalone binary - No Python required
🚧 Multi-Step Prompting
🚧 Tool Augmentation
🚧 Output Constraints (in set, in type)
🚧 Provided integration with external tools (Emacs, Raycast)

Non-Features

Interactive use - instead, invoke cogni from within interactive environments (REPLs, emacs, etc)

Installation

# Install from crates.io
$ cargo install cogni

# From source
$ cargo install --path .

Tour of cogni