# Skill With Extended

> Demonstrates extended spec features. Use when learning about security, testing, composition.

- Skill: `pratiyush/skill-with-extended` (Agent Skill)
- Install (CLI): `npx skillmds@latest add pratiyush/skill-with-extended`
- Raw SKILL.md: https://api.skillmd.com/api/skills/pratiyush/skill-with-extended/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- Author: pratiyush (https://skillmd.com/u/pratiyush)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/pratiyush/skill-with-extended

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# Skill With Extended

This example skill demonstrates the extended spec features that are
100% optional and backward-compatible with the base Agent Skills spec.

## When to use this skill

Use this skill as a reference when you want to learn how to declare:

- `security`: Capabilities, credentials, and network access policies
- `testing`: Test scenarios for automated verification
- `composition`: Skill dependencies and replacement chains
- `tools`: Tool dependencies and bindings

## Instructions

1. Review the frontmatter above to see all extended fields in action
2. Copy and adapt the structure to your own skill's needs
3. Remember: all extended fields are optional

## Gotchas

- This is an example — replace all content with your own instructions
- Extended fields are validated only when present
- Unknown fields outside the schema still produce warnings