# Special Chars Skill

> A skill for testing special characters and injection patterns

- **Type:** Skill
- **Install:** `agentstack add skill-maxvaega-skillkit-edge-special-chars`
- **Verified:** Pending review
- **Seller:** [maxvaega](https://agentstack.voostack.com/s/maxvaega)
- **Installs:** 0
- **Category:** [AI & ML](https://agentstack.voostack.com/c/ai-and-ml)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [maxvaega](https://github.com/maxvaega)
- **Source:** https://github.com/maxvaega/skillkit/tree/main/tests/fixtures/skills/edge-special-chars

## Install

```sh
agentstack add skill-maxvaega-skillkit-edge-special-chars
```

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

## About

# Special Characters Skill

This skill tests handling of special characters in $ARGUMENTS placeholder.

Test cases covered:
- HTML/XML special chars:  & " '
- Shell metacharacters: $ ` ; | & ( ) [ ] { }
- Path traversal attempts: ../ ../../etc/passwd
- SQL injection patterns: ' OR '1'='1
- Command injection: ; rm -rf / ; $(whoami)
- Unicode and emoji: 你好 🎉 émoji

Usage: $ARGUMENTS

## Expected Behavior

The ContentProcessor should safely substitute arguments without:
1. Executing shell commands
2. Interpreting special characters
3. Allowing path traversal
4. Enabling injection attacks

All input should be treated as literal text.

## Source & license

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

- **Author:** [maxvaega](https://github.com/maxvaega)
- **Source:** [maxvaega/skillkit](https://github.com/maxvaega/skillkit)
- **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: flagged — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-maxvaega-skillkit-edge-special-chars
- Seller: https://agentstack.voostack.com/s/maxvaega
- 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%.