1. What OpenSpec Is OpenSpec is an open-source Spec-Driven Development framework maintained by Fission-AI. It does not try to teach AI new coding tricks. Instead it adds a lightweight “agreement layer” between you and the AI — before any code is written, both sides settle on what to do, in writing.

References: Claude Code Configuration, Environment Variables, Connecting to an LLM Gateway Claude Code talks to the Anthropic Messages API. When connecting to a custom gateway, use the env block of settings.json to override the endpoint and the model. 1. Where the Configuration File Lives The user configuration is at ~/.

1. What Superpowers Is Superpowers is a plugin that bolts “engineering discipline” onto a coding agent, maintained by Prime Radiant. It is not a library of prompt templates but a complete software engineering methodology built on top of Skills — at session startup a bootstrap mechanism makes the AI automatically