design-an-interface

Generates multiple software module interface designs with trade-off analysis.

Updated May 28, 2026
One-click install
npx skills add https://github.com/haryelramalho/skills --skill design-an-interface-haryelramalho
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: design-an-interface
Source: https://github.com/haryelramalho/skills/tree/main/skills/community/design-an-interface
Command: npx skills add https://github.com/haryelramalho/skills --skill design-an-interface-haryelramalho

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you avoid settling for the first interface idea by generating several distinct designs for the same module and comparing their strengths, weaknesses, and fit.

Core Features & Use Cases

  • Parallel Design Exploration: Produces multiple radically different interface proposals instead of one incremental variant.
  • Trade-off Comparison: Evaluates simplicity, flexibility, hidden complexity, and ease of correct use across competing designs.
  • Module Planning: Useful when shaping a new API, redesigning an existing module, or deciding what should stay internal versus exposed.
  • Caller-Centric Thinking: Focuses on who will use the interface and how they will interact with it in practice.

Quick Start

Ask this skill to design three or more radically different interfaces for your module and compare the trade-offs.

Frequently Asked Questions about design-an-interface

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

FAQPage Schema
How do I compare different API designs before committing to an implementation?

API design exploration involves generating multiple radically different interface proposals for a module and evaluating their trade-offs. This approach produces interface signatures, usage examples, and hidden internal responsibilities for each competing design option.

What is the best way to plan module interfaces and decide what to expose versus keep internal?

The best way to plan module interfaces is to explore caller-facing options by generating distinct designs that define what should stay internal versus exposed. This helps you focus on who will use the interface and how they interact with it in practice.

How do I evaluate the trade-offs of competing software module designs?

Evaluating module design trade-offs involves comparing simplicity, flexibility, hidden complexity, and ease of correct use across competing interface proposals. This analysis prevents you from settling for the first interface idea by highlighting strengths and weaknesses.

Can I generate usage examples for different API signatures before implementation begins?

Yes, you can generate usage examples for different API signatures before implementation begins. The interface design process produces caller-facing usage examples alongside interface signatures and hidden internal responsibilities for each proposed module design.

When do I need to explore multiple interface designs for a software module?

You need to explore multiple interface designs when shaping a new API, redesigning an existing module, or deciding what should stay internal versus exposed. This prevents premature commitment to a single interface idea by comparing fit and hidden complexity.