# ShellWard

> Use this tool when you need to enforce security and compliance in your workflow, particularly for protecting sensitive information and detecting potential threats. ShellWard solves problems related to data leakage, prompt injection, and unauthorized access by providing an 8-layer defense architecture with features like DLP-style data flow control and PII scanning. It takes in tool calls and system activities as inputs and outputs alerts and blocked transmissions, making it ideal for use cases requiring robust security guardrails in MCP-compatible environments.

Canonical page: https://skillsregistry.net/skills/gh-jnmetacode-shellward  
JSON: https://api.skillsregistry.net/v1/skills/gh-jnmetacode-shellward

## Description

ShellWard intercepts tool calls at runtime to enforce security guardrails using an 8-layer defense architecture. It provides DLP-style data flow control that blocks outbound data transmission when sensitive information was recently accessed, prompt injection detection with 32 rules covering English and Chinese, dangerous command blocking, PII scanning, and session monitoring. Works as a standalone SDK or MCP server with zero dependencies across Claude Desktop, Cursor, and other MCP-compatible clients.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-05-27

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/gh-jnmetacode-shellward)
- **Repository:** <https://github.com/jnmetacode/shellward>

## 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": "gh-jnmetacode-shellward"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/gh-jnmetacode-shellward` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/gh-jnmetacode-shellward/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