# Demo File

> Example skill — verify file existence, size, and content

- **Type:** Skill
- **Install:** `agentstack add skill-wool-xing-test-agent-demo-file`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [Wool-xing](https://agentstack.voostack.com/s/wool-xing)
- **Installs:** 0
- **Category:** [Developer Tools](https://agentstack.voostack.com/c/developer-tools)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [Wool-xing](https://github.com/Wool-xing)
- **Source:** https://github.com/Wool-xing/Test-Agent/tree/main/examples/skills/demo-file
- **Website:** https://github.com/Wool-xing/Test-Agent

## Install

```sh
agentstack add skill-wool-xing-test-agent-demo-file
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Demo File Check

Verify that a file exists, has expected size, and optionally contains expected content.

```bash
tagent skill install examples/skills/demo-file
tagent "check if config.json exists and is not empty"
tagent "verify README.md contains the word 'Installation'"
```

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [Wool-xing](https://github.com/Wool-xing)
- **Source:** [Wool-xing/Test-Agent](https://github.com/Wool-xing/Test-Agent)
- **License:** MIT
- **Homepage:** https://github.com/Wool-xing/Test-Agent

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-wool-xing-test-agent-demo-file
- Seller: https://agentstack.voostack.com/s/wool-xing
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.