What is an Agent Skill?
An Agent Skill is a declarative specification (aSKILL.md file) that teaches AI agents how to interact with an API. There’s no executable code — the skill simply provides instructions, endpoint definitions, and safety guidelines that the agent follows.
Agent Skills use progressive disclosure: at startup only the skill name and description are loaded. The full instructions are read into context only when the agent detects a matching task, keeping your agent fast and focused.
What Can It Do?
The Universal Checkout Skill gives your agent three capabilities:| Capability | Description |
|---|---|
| Place orders | Buy products from supported retailers using a product URL |
| Check order status | Look up the current status and tracking info for an order |
| List orders | View recent orders placed through Zinc |
Supported Platforms
The Universal Checkout Skill works with any agent platform that supports the Agent Skills standard, including:Prerequisites
Before you begin, you’ll need:- A Zinc API key. Sign up at app.zinc.com to get one.
- Funds deposited in your Zinc account to place orders.
- A supported AI agent platform (see above).
Next Steps
Setup
Install and configure the skill for your platform.
Usage Guide
Learn how to place orders and track them with your agent.

