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feature-spec

Generate implementation specifications from PRD features with API contracts and test scenarios.

1|1|Updated Mar 1, 2026
Search Tags:#development#documentation#specification#codebase analysis#feature#design decisions
One-click install
npx skills add https://github.com/heltondoria/claude-code-sdd-kit --skill feature-spec-heltondoria
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: feature-spec
Source: https://github.com/heltondoria/claude-code-sdd-kit/tree/main/global/skills/feature-spec
Command: npx skills add https://github.com/heltondoria/claude-code-sdd-kit --skill feature-spec-heltondoria

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill bridges the gap between high-level PRD requirements and actionable development tasks by creating detailed implementation specifications, ensuring clarity and consistency in the development process.

Core Features & Use Cases

  • Detailed Specification Generation: Transforms PRD features into comprehensive technical specifications.
  • Codebase Analysis: Analyzes existing code to inform design decisions and identify integration points.
  • Design Decision Documentation: Captures and maintains cross-feature design decisions for consistency.
  • Use Case: A product manager has defined a new user authentication feature in the PRD. This Skill will be used to create a detailed spec outlining the API contracts, data models, error handling, and test scenarios, which developers will then use to build the feature.

Quick Start

Use the feature-spec skill to refine feature F6 from the PRD.

Frequently Asked Questions about feature-spec

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

FAQPage Schema
How do I generate detailed implementation specifications from PRD features?▼

Generating detailed implementation specifications from PRD features involves analyzing existing code, identifying design decisions, and defining component architecture, data flow, API contracts, and test scenarios to bridge the gap between requirements and development.

What is the best way to maintain cross-feature design consistency in technical specifications?▼

The best way to maintain cross-feature design consistency is by capturing and documenting design decisions in a dedicated DECISIONS.md file, ensuring that architectural choices and integration points remain aligned across multiple feature implementations.

How do I bridge the gap between high-level PRD requirements and actionable development tasks?▼

Bridging the gap between high-level PRD requirements and actionable development tasks requires creating detailed technical specifications that outline API contracts, data models, error handling, and test scenarios, providing developers with clear implementation guidance.

Can I analyze my existing codebase to identify integration points for a new feature?▼

Yes, you can analyze your existing codebase to identify integration points and inform design decisions. This codebase analysis helps define component architecture and data flow when refining PRD features into detailed specs.

Do I need a complete PRD before creating technical specifications for component architecture and API contracts?▼

You need defined PRD features to create technical specifications. The specification generation process refines these high-level product requirements into detailed component architecture, API contracts, internal interfaces, and test scenarios for developers.

What should be included in implementation specifications for new user authentication features?▼

Implementation specifications for new user authentication features should include detailed API contracts, data models, internal interfaces, error handling protocols, and test scenarios, all informed by analyzing existing codebase integration points.

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