# Hello World

> A simple demonstration skill that echoes input text. Use for testing the Skill System or verifying that skill execution is working correctly.

- **Type:** Skill
- **Install:** `agentstack add skill-alex-tangt-skill-system-hello-world`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [Alex-tangt](https://agentstack.voostack.com/s/alex-tangt)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [Alex-tangt](https://github.com/Alex-tangt)
- **Source:** https://github.com/Alex-tangt/skill-system/tree/main/skills/hello-world

## Install

```sh
agentstack add skill-alex-tangt-skill-system-hello-world
```

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

## About

# Hello World

A minimal two-step echo pipeline for testing Skill Engine execution.

## Workflow
1. Step `echo1` echoes the input text
2. Step `echo2` processes echo1's output
3. Results are stored in SQLite trace database

## Input
- `text`: Any string to echo

## Output
- Final echoed text from step `echo2`

## Source & license

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

- **Author:** [Alex-tangt](https://github.com/Alex-tangt)
- **Source:** [Alex-tangt/skill-system](https://github.com/Alex-tangt/skill-system)
- **License:** MIT

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-alex-tangt-skill-system-hello-world
- Seller: https://agentstack.voostack.com/s/alex-tangt
- 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%.