# Using String

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- **Type:** Skill
- **Install:** `agentstack add skill-string-os-string-using-string`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [string-os](https://agentstack.voostack.com/s/string-os)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [string-os](https://github.com/string-os)
- **Source:** https://github.com/string-os/string/tree/main/skills/using-string
- **Website:** https://string-os.org

## Install

```sh
agentstack add skill-string-os-string-using-string
```

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

## About

# Using String

You have the installed String MCP tool named `string`; some hosts display it with a server prefix.

Call it with `{ topic, cmd }`, for example `{ "topic": "main", "cmd": "/info" }`.

Use topics like `main`, `app:`, `app::`, `bash:`, or hubs `app`, `tool`, `bash`, `system`.

`cmd` must start with `/`; use `/help`, `/info`, and `/act --help` to discover what to do.

Use `/open` to read files, URLs, or apps; installed apps can run `/act.` directly from `app:` if you already know the action.

Use `/install` to add apps; `/set $VAR = "..."` for app credentials.

Read the payload inside `...` and follow `Recovery:` or `next:` hints.

## Source & license

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

- **Author:** [string-os](https://github.com/string-os)
- **Source:** [string-os/string](https://github.com/string-os/string)
- **License:** MIT
- **Homepage:** https://string-os.org

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-string-os-string-using-string
- Seller: https://agentstack.voostack.com/s/string-os
- 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%.