specification

Generate a structured Markdown software specification document from a product concept.

1|Updated Feb 16, 2026
One-click install
npx skills add https://github.com/constellize/marketplace --skill specification-constellize
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: specification
Source: https://github.com/constellize/marketplace/tree/main/plugins/constellize-planning/skills/specification
Command: npx skills add https://github.com/constellize/marketplace --skill specification-constellize

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Generate a concise yet comprehensive software specification document from product concepts to streamline planning and engineering handoff.

Core Features & Use Cases

  • Structured requirements covering functional and non-functional aspects
  • Clear system constraints, acceptance criteria, and prioritization
  • Use Case: Convert a product idea into a complete spec ready for engineering kickoff and QA review.

Quick Start

Draft a product brief and request a full software specification.

Frequently Asked Questions about specification

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

FAQPage Schema
How do I generate a software specification document from a product concept?▼

To generate a software specification, draft a high-level product brief and request a full spec. The output is a structured Markdown document detailing functional and non-functional requirements, system constraints, and acceptance criteria.

What sections are included in a generated software requirements document?▼

A generated software requirements document includes sections for functional and non-functional requirements, system constraints, acceptance criteria, and prioritization. Each item uses clear identifiers like FR-001 and NFR-001 with supporting rationale.

Can I use this for engineering handoff and QA review?▼

Yes, you can use this for engineering handoff and QA review. It converts product ideas into a complete spec with defined requirements and acceptance criteria, ensuring engineering and QA teams have clear constraints for kickoff.

What is the best way to write non-functional requirements and system constraints for planning?▼

The best way to write non-functional requirements and system constraints is to generate a structured Markdown specification. It automatically categorizes these constraints with clear identifiers and rationale for comprehensive project planning.

Do I need to provide a detailed product brief to get structured Markdown documentation?▼

You do not need a highly detailed brief to get structured Markdown documentation. Drafting a high-level product concept is sufficient to automatically generate a comprehensive software specification with all required engineering sections.

Why define acceptance criteria and prioritization during software planning?▼

Defining acceptance criteria and prioritization during software planning ensures engineering and QA teams understand constraints and feature importance. The generated specification provides clear identifiers and rationale to streamline this process.