# Broken Frontmatter

> A Claude skill from agent-ecosystem/skill-validator.

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

## Install

```sh
agentstack add skill-agent-ecosystem-skill-validator-broken-frontmatter
```

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

## About

# Broken Frontmatter Skill

This skill has valid content but its YAML frontmatter cannot be parsed.

## Setup

Use the CLI to install dependencies. Always validate your configuration.

```bash
npm install express
```

```python
from flask import Flask
```

- Step 1: Configure
- Step 2: Deploy
- Step 3: Verify

You must ensure all tests pass. Never skip the validation step.
Consider using a `.env` file for local development.

## Source & license

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

- **Author:** [agent-ecosystem](https://github.com/agent-ecosystem)
- **Source:** [agent-ecosystem/skill-validator](https://github.com/agent-ecosystem/skill-validator)
- **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:** yes
- **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-agent-ecosystem-skill-validator-broken-frontmatter
- Seller: https://agentstack.voostack.com/s/agent-ecosystem
- 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%.