Does this skill require GitHub Copilot CLI?

Yes, it leverages the GitHub Copilot CLI to automatically review the generated implementation-plan.md for technical feasibility and edge cases.

Why are system diagrams mandatory?

Mandatory state machine and data flow diagrams ensure that the technical logic is fully mapped out before coding starts, reducing bugs and architectural drift.

How does the sub-agent delegation work?

The skill acts as an orchestrator, spinning up a 'codebase-explorer' agent to analyze your files and a 'spec-planner' agent to draft the final implementation and task documents.

What is the purpose of the PLANNING file in this skill?

The PLANNING file serves as a safeguard that prevents the AI from writing implementation code until the planning phase is officially completed and approved by the user.

Can I use this for small bug fixes?

While it can be used for any change, it is best suited for new features or significant refactors where structural planning provides the most value.

Spec-Driven Development Copilot

Name: Spec-Driven Development Copilot
Author: DIO0550

byDIO0550

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Productivity & Workflow

Orchestrates complex feature implementation by automating requirement gathering, codebase exploration, and multi-agent implementation planning.

Spec-Driven Development Copilot is a high-level workflow skill for Claude Code that formalizes the transition from idea to implementation. It utilizes a structured interactive hearing process to define scope, then delegates deep codebase analysis and technical planning to specialized sub-agents. By enforcing the creation of comprehensive implementation plans—including mandatory state machine and data flow diagrams—and integrating GitHub Copilot CLI for automated review loops, it ensures that every line of code is backed by a solid architectural foundation. The skill also features a unique planning-phase lock to prevent premature code generation and context loss during long-running tasks.

Key Features

01Interactive multi-batch requirement gathering to clarify project scope and technical constraints.

02Mandatory architectural documentation including state machine and data flow diagrams.

03Integrated GitHub Copilot CLI review loops for automated quality assurance of implementation plans.

041 GitHub stars

05Automated sub-agent delegation for deep codebase exploration and implementation plan generation.

06Planning-phase protection using a dedicated lock file to prevent premature implementation during AutoCompact.

Use Cases

01Standardizing implementation workflows across teams through structured specifications and task lists.

02Ensuring architectural integrity in large-scale refactoring projects through automated reviews.

03Defining and planning complex new features that require deep integration with existing codebases.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add dio0550/d-market spec-driven-dev-copilot

For use in Claude.ai and ChatGPT

Download Skill