A Claude skill that keeps your AI coding tools from contradicting each other. Generates requirements.md, design.md, and tasks.md before any code is written — then creates matching config files for Claude Code, Cursor, Copilot, Windsurf, and Aider.
2 files for Claude Code and GitHub Copilot: Spec-Driven-Development CLAUDE.md, Spec-Driven-Development copilot-instructions.md — 896 tokens loaded in every session.
CLAUDE.md A 459 tok phase2c/flow_c/.github/copilot-instructions.md A 437 tok These files are FredAntB/Spec-Driven-Development's own configuration — they tell Claude Code and GitHub Copilot how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.