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Turn ideas into clear, buildable specs for AI tools or stakeholder review. Use when starting features, planning projects, or when AI keeps building the wrong thing. Creates Quick Feature Specs (10-15 min) for immediate AI builds or Full Project Scopes (1-2 hours) for budget planning and contractor estimates.

97

2.51x

Quality

100%

Does it follow best practices?

Impact

88%

2.51x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Evaluation results

76%

68%

Spec: User Notification Preferences Feature

Quick Feature Spec format

Criteria
Without context
With context

Correct save path

0%

100%

User description length

0%

100%

User description template

0%

100%

Single visual approach

0%

0%

Happy path step count

0%

0%

Edge case count

0%

100%

Edge case format

0%

100%

Out of scope section

0%

100%

Mobile mention

0%

100%

What not how

0%

0%

All 5 sections present

0%

100%

Date in filename

100%

100%

100%

44%

Scope: Freelance Marketplace Platform

Full Project Scope structure

Criteria
Without context
With context

Correct save path

0%

100%

Introduction section

50%

100%

User Roles section

100%

100%

Pages & Screens section

11%

100%

Core Features outcome-focused

44%

100%

Integrations with risk notes

33%

100%

Milestones with hour estimates

55%

100%

Open Questions section

66%

100%

All 7 sections present

70%

100%

Mobile mention

100%

100%

Date in filename

100%

100%

Out of scope in intro

25%

100%

88%

45%

Spec: Analytics Dashboard for a Newsletter Platform

Spec quality and common mistakes

Criteria
Without context
With context

Dashboard content described

100%

100%

Each dashboard element explained

100%

100%

What not how

0%

25%

Mobile mention

0%

100%

Out of scope section

0%

100%

Happy path present

0%

100%

Edge cases present

100%

100%

Visual description

37%

100%

User-action framing

40%

70%

Correct save path

50%

100%

Repository
majiayu000/claude-skill-registry
Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

Table of Contents

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