---
title: "Agent Skills | agent skills discovery index SKILL.md | Agent-Ready Check"
description: "An Agent Skills index points at SKILL.md documents that teach an agent what it can do with your site, with a digest so drift is detectable. Pass criteria: /.well-known/agent-skills/index.json lists at least one skill."
locale: en
canonical: https://agent-ready.t0ols.com/checks/agent-skills/
---

# Agent Skills

> Category: API, Auth, MCP & Skill Discovery

An Agent Skills index points at SKILL.md documents that teach an agent what it can do with your site, with a digest so drift is detectable.

## Why it matters

Well-written skills are how an agent learns your conventions (URL shapes, rate limits, quoting rules) without trial and error.

## Pass criteria

/.well-known/agent-skills/index.json lists at least one skill.

## How to implement it

Goal: Publish an agent skills discovery index

/.well-known/agent-skills/index.json lists at least one skill.

The step-by-step implementation prompt is part of the paid tier. The free layer gives you the diagnosis, the evidence and the specification links.

Specifications: https://agentskills.io/home, https://schemas.agentskills.io/discovery/0.2.0/schema.json
Implementation notes: https://agent-ready.t0ols.com/.well-known/agent-skills/agent-skills/SKILL.md