5d-spec

Convert PLAN.md into a SPEC.md with architecture, data models, and interfaces.

5|Updated Jan 30, 2026

Search Tags:#design #architecture #documentation #requirements #spec #traceability #plan-to-spec

Ready to run

npx skills add https://github.com/tapania/5d-skills --skill 5d-spec

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: 5d-spec
Source: https://github.com/tapania/5d-skills/tree/main/skills/5d-spec
Command: npx skills add https://github.com/tapania/5d-skills --skill 5d-spec

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill converts a refined project plan into a concrete technical specification, bridging the gap between business intent and implementation.

Core Features & Use Cases

Transforms PLAN.md into a complete SPEC.md, preserving intent, decisions, and rationale.
Documents architecture, data models, interfaces, and validation criteria in a single cohesive document.
Enables end-to-end traceability from plan items to technical design, reducing drift and rework.

Quick Start

Activate after completing the REFINE phase and run the spec generator to produce SPEC.md from PLAN.md, ready for review and implementation.

Frequently Asked Questions about 5d-spec

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I generate a technical specification from a project plan?▼

A technical specification bridges the gap between business intent and implementation by documenting architecture, data models, interfaces, and validation criteria. It translates refined project plans into concrete engineering requirements to reduce drift and rework during development.

How do I ensure traceability between project plans and technical design documents?▼

Traceability between plans and technical design is enforced by mapping each refined plan item directly to its corresponding specification item. This end-to-end mapping ensures that architecture, data models, and interface decisions remain aligned with the original project requirements.

What sections should be included in a software architecture specification?▼

A software architecture specification must include essential sections for architecture, data models, interfaces, and testability. Documenting these validation criteria in a single cohesive document ensures complete technical coverage and reduces implementation drift.

When do I need to convert a refined plan into a technical spec?▼

You need to convert a refined plan into a technical spec immediately after completing the REFINE phase. Running the spec generator at this stage produces a SPEC.md file ready for review, ensuring technical design aligns with business intent before implementation begins.

Can I document data models and interfaces directly from a project plan?▼

Yes, you can document data models and interfaces directly from a project plan by applying a spec generator after the refinement phase. It transforms PLAN.md into SPEC.md, automatically detailing the required architecture and interface validation criteria in one cohesive document.