WhySpec is a spec-driven development framework with "reasoning" layer for AI coding agents: an open-source CLI and agent skill set that helps you plan before coding, capture what actually happened after coding, and preserve the why behind each change for future chats, debugging, and reviews. MIT licensed, works offline, no account needed. Works with Claude Code, Cursor, Copilot, Codex CLI, and more.

GitWhy is the context layer for git that captures the prompt, reasoning, decisions, and changed files from Claude Code, Cursor, and other coding agents, tied to the commits that produced them. Share that context with your team and surface it directly in GitHub PRs for faster, clearer reviews.