copilot-yaml-reference

What problem does it solve?

Authoritative knowledge of the VS Code Copilot YAML frontmatter specification for all customization file types enables teams to consistently create, validate, and reuse frontmatter across agents, instructions, and skills.

Core Features & Use Cases

• Documents required fields (name, description) and optional properties (model, agents, tools, applyTo, etc.) for agents, instructions, and skills.
• Provides example frontmatter usage for .agent.md, .instructions.md, SKILL.md, and demonstrates how to structure handoffs and resources.
• Enables validation, tooling integration, and automated discovery of Copilot prompts and skills.

Quick Start

Validate or reference Copilot frontmatter in your project by inspecting your .agent.md, .instructions.md, and SKILL.md files against the reference.