# mcp-hardened

> mcp-hardened — nu1lstep-mcp-hardened. Use this tool when you need to securely manage and query data while protecting against common web application vulnerabilities. It provides a hardened MCP server with tools for file search, record queries, and document fetching, defending against path traversal, SQL injection, and SSRF attacks. Ideal for use cases requiring robust security measures, such as sensitive data storage and retrieval.

Canonical page: https://skillsregistry.net/skills/nu1lstep-mcp-hardened  
JSON: https://api.skillsregistry.net/v1/skills/nu1lstep-mcp-hardened

## Description

A deliberately small MCP server that demonstrates security hardening against the OWASP MCP Top 10 with tools for file search, record queries, and document fetching, each defended against path traversal, SQL injection, and SSRF.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-29

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** database
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/pjnqge4a0l)
- **Repository:** <https://github.com/Nu1lstep/MCP-Hardened>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nu1lstep-mcp-hardened"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nu1lstep-mcp-hardened` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nu1lstep-mcp-hardened/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt