AI Coding Assistant

REX AI Coding 30-day subscriptions: Codex from ¥60/month and full-model standard pool from ¥199/month, covering Codex, Chinese models, GPT, Claude and Gemini.

A beginner’s guide to Superpowers: Whether you use Claude Code, Codex, or OpenCode, this AI coding skill pack transforms your assistant from ‘chaotic mess’ to ‘methodical pro’. Includes OpenSpec and Spec-Kit comparison.