claw: A Lightweight POSIX Shell Agent for Linux Using curl and jq

Summary

A lightweight shell script called "claw" that functions as a POSIX-sh agent for Linux systems. It provides a streaming chat interface against OpenAI or Anthropic APIs, with shell tool calling capabilities, rolling memory, skills, and mentor mode. The tool is built entirely with curl and jq — no Node.js or npm dependencies required. The article demonstrates claw's ability to execute shell commands interactively, showing an example where it finds the three largest log files and their ages.