Specification-Driven Development framework for agent-native development
SpecDD is an experimental Specification-Driven Development framework designed to improve AI-assisted software development by using local, human-readable specification files that coexist with code. These .sdd files define intent, behavior, boundaries, and tasks, providing both humans and AI agents with a clear, localized source of truth. The approach supports new and existing projects and aims to enhance consistency, maintainability, and software design through structured, colocated documentation.
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SpecDD SpecDD is an experimental approach to Specification-Driven Development for AI-assisted software projects. SpecDD uses small, local, human-readable .sdd files that live beside the code they describe. These specs document intent, architecture, behavior, boundaries, and implementation tasks in a way that both humans and AI coding agents can follow. SpecDD works for both greenfield and existing projects. In new projects, specs can define structure before implementation starts. In existing projects, specs can be introduced gradually around modules, services, features, or files that are actively changing. How it works SpecDD is deliberately simple. You do not need to install anything to use it.
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