Is this skill suitable for small bug fixes?

For trivial changes, you can skip directly to the BUILD phase; however, it is recommended to always use the VERIFY phase to ensure the fix is correct and hasn't introduced regressions.

What documents does this skill generate?

The skill produces several standardized artifacts including PLAN.md for project direction, SPEC.md for technical requirements, and detailed task lists for implementation.

Can I use specific phases of 5D-SDD individually?

Yes, while the full workflow is recommended for new features, you can invoke individual phases like ORIENT, SPAR, or SPEC depending on the current state of your project.

What is 5D Spec-Driven Development (5D-SDD)?

5D-SDD is a methodology for building software that prevents wasted effort by ensuring deep understanding through structured phases before any code is committed.

How does 5D-SDD handle project failures?

It uses 'failure routing' to direct you back to the specific phase (such as Plan, Spec, or Build) where the underlying issue likely originated, rather than just patching the symptoms.

5D Spec-Driven Development

Name: 5D Spec-Driven Development
Author: tapania

bytapania

•

生産性とワークフロー

Orchestrates a structured 10-phase software development methodology to ensure deep understanding and rigorous planning before writing code.

概要

5D-SDD is a comprehensive framework for Claude Code designed to eliminate wasted development effort by enforcing a 'think before you build' approach. It guides developers through 10 distinct phases—from initial orientation and 'sparring' with ideas to technical specification and reflective analysis. By mapping multiple dimensions of a project (technical, business, and user perspectives) and identifying hidden assumptions early, this skill helps teams build more resilient software, reduce spec drift, and establish clear exit criteria for every stage of the development lifecycle.

主な機能

1 GitHub stars
Intelligent failure routing to identify and correct errors at the right architectural level
Assumption-testing 'Spar' phase to uncover blind spots and technical risks
Multi-perspective analysis covering technical, business, and user domains
Automated generation of critical artifacts like PLAN.md and SPEC.md
Structured 10-phase development workflow from orientation to reflection

ユースケース

Troubleshooting recurring development failures by returning to earlier planning phases
Transitioning from loose ideas to concrete, task-oriented implementation plans
Initiating non-trivial software projects that require high architectural fidelity

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add tapania/5d-skills 5d-sdd

For use in Claude.ai and ChatGPT

Download Skill

GitHub

概要

主な機能

1 GitHub stars
Intelligent failure routing to identify and correct errors at the right architectural level
Assumption-testing 'Spar' phase to uncover blind spots and technical risks
Multi-perspective analysis covering technical, business, and user domains
Automated generation of critical artifacts like PLAN.md and SPEC.md
Structured 10-phase development workflow from orientation to reflection

ユースケース

Troubleshooting recurring development failures by returning to earlier planning phases
Transitioning from loose ideas to concrete, task-oriented implementation plans
Initiating non-trivial software projects that require high architectural fidelity