spec-pipeline

Transform raw product ideas into blueprint, requirements, and architecture documents.

28|2|Updated Feb 5, 2026
One-click install
npx skills add https://github.com/labs21-dev/agents-stack --skill spec-pipeline-labs21-dev
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: spec-pipeline
Source: https://github.com/labs21-dev/agents-stack/tree/main/templates/.agents/skills/greenfield-product/spec-pipeline
Command: npx skills add https://github.com/labs21-dev/agents-stack --skill spec-pipeline-labs21-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill guides a raw product idea through a structured three-stage specification pipeline (blueprint, requirements, architecture), ensuring a durable, testable design before development.

Core Features & Use Cases

  • Stage 1 — Blueprint: synthesize a credible strategy and MVP boundary, producing a design.md.
  • Stage 2 — Requirements: convert the blueprint into testable user stories and acceptance criteria, producing requirements.md.
  • Stage 3 — Architecture: translate approved requirements into an implementation plan and architecture document, producing architecture.md.
  • Pipeline discipline: enforce not skipping stages and provide clear inputs for the next phase.

Quick Start

Submit a raw product idea to generate the blueprint, PRD, and architecture artifacts.

Frequently Asked Questions about spec-pipeline

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

FAQPage Schema
How do I generate a product blueprint and architecture from a raw idea?

To generate a product specification from a raw idea, submit your concept to trigger a three-stage pipeline that outputs design, requirements, and implementation documents sequentially.

What is the process for creating testable user stories from an early-stage product concept?

Creating testable user stories from a product concept involves passing a synthesized MVP blueprint into a requirements stage that converts strategy into testable acceptance criteria.

Can I skip the blueprint stage and generate architecture directly for a greenfield project?

No, you cannot skip the blueprint stage to generate architecture directly, because the specification pipeline enforces staged outputs and guards against bypassing the initial strategy and requirements phases.

Do I need an existing PRD to start building an implementation plan and system architecture?

No, you do not need an existing PRD to start building an implementation plan, because the pipeline synthesizes a credible strategy and MVP boundary from a raw product idea before translating it into architecture.

What are the limitations of using a structured specification pipeline for greenfield products?

The main limitation of using a structured specification pipeline for greenfield products is the enforced staged outputs that prevent skipping phases, requiring complete blueprint and requirements validation before architecture generation.