Dupe Skills

A collection of skills for AI coding agents. Skills are packaged instructions and references that extend agent capabilities.

Skills follow the Agent Skills specification.

Available Skills

dupe

Find similar products using dupe.com's visual search API.

Use when:

• User provides a product URL and asks for similar/alternative products
• User shares an image URL and wants to find matching items
• Searching for dupes, alternatives, or look-alikes

Features:

• Product URL search via dupe.com API
• Direct image URL search capability
• Returns matches with prices, store info, and direct links
• Provides similarity scores and product rankings
• Generates dupe.com result page links

dupe-research

Launch AI-powered product research tasks from your agent — the same pipeline that powers dupe.com.

Use when:

• Researching the best products in a category ("best wireless earbuds under $100")
• Comparing products with specific priorities (value, quality, reviews, etc.)
• Getting AI-powered product recommendations with detailed reasoning
• Generating a comprehensive research report for a product category

Features:

• 5 research archetypes (deal hunter, quality-first, quick pick, social proof, deep research)
• Real-time progress tracking across 9 research phases
• Returns product candidates with pricing, images, and brand info
• Generates full editorial research articles
• Links to published report pages on dupe.com
• Protected by BOTCHA — agent solves a speed challenge to authenticate (no API keys or SDKs needed)

nomistakes

Error prevention and best practices enforcement for AI agent-assisted coding.

Use when:

• Writing new code or functions
• Refactoring existing code
• Implementing API integrations
• Handling user input or external data
• Working with async operations
• Reviewing AI-generated code

Features:

• 10 core error prevention principles
• Input validation, null safety, async handling
• TypeScript strict mode patterns
• Biome migration guide (ESLint → Biome)
• AI code review checklist
• Model configuration recommendations (Claude 3.5+, GPT-4+, extended thinking)
• 60KB+ of reference documentation

ascii-renderer

Generate ASCII art from images or text using shape vector rendering.

Use when:

• Creating ASCII text banners for terminals, READMEs, or CLI tools
• Converting images to ASCII art with high-quality edge detection
• Building terminal splash screens or headers
• Generating retro/terminal aesthetic text

Features:

• Text-to-ASCII with customizable fonts (Arial Black, Impact, etc.)
• Image-to-ASCII conversion with sharp edge detection
• Shape vector algorithm for superior quality vs traditional brightness mapping
• Adjustable contrast, size, and invert options
• Built-in demo mode

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Installation

Install any skill with a single command via skills.sh:

npx skills add dupe-com/skills/dupe-research
npx skills add dupe-com/skills/dupe
npx skills add dupe-com/skills/nomistakes
npx skills add dupe-com/skills/ascii-renderer

This works with Claude Code, OpenCode, Cursor, Windsurf, Cline, Codex, AMP, Copilot, and any agent that supports the agentskills.io standard.

Manual Installation

git clone https://github.com/dupe-com/skills.git
cp -r skills/skills/<skill-name> ~/.claude/skills/

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Skill Structure

Each skill follows a consistent structure:

skills/skill-name/
├── SKILL.md           # Main instructions (required)
├── README.md          # Detailed documentation
├── metadata.json      # Version, author, tags
├── LICENSE            # Skill-specific license
├── references/        # Additional documentation
└── scripts/           # Executable utilities

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Creating New Skills

Use the template in template/SKILL.md as a starting point.

Required Fields

---
name: my-skill-name # lowercase-hyphenated
description: What it does and when to use it
---

Guidelines

1. Keep SKILL.md under 500 lines - Move detailed docs to references/
2. Write for agents - Clear, actionable instructions
3. Include examples - Show both ❌ BAD and ✅ GOOD patterns
4. Test your skill - Run node scripts/validate-skill.cjs if available

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Contributing

1. Fork this repository
2. Create a new skill in skills/your-skill-name/
3. Follow the structure and guidelines above
4. Submit a pull request

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License

Individual skills may have their own licenses. See each skill's LICENSE file.

Repository structure and shared tooling: MIT

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About

Built by Dupe.com - AI-powered shopping research.