WhySpec
Open-source, spec-driven development framework for AI agents
WhySpec launched on April 11, 2026.
What it does
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.
A spec-driven context engineering framework with "reasoning" layer for AI coding agents. - gitwhy-cli/whyspec
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