# MCP Tool Guardian

> MCP Tool Guardian — princeruhulofficial-mcp-tool-guardian-20260730. Use this tool when you need to safeguard AI agents from faulty tool outputs and ensure reliable interactions. The MCP Tool Guardian validates, sanitizes, and scores tool responses to prevent schema mismatches and tool poisoning, providing a secure interface for trustworthy outputs. It is ideal for use cases where AI agents rely on external tools, requiring a robust validation mechanism to maintain data integrity.

Canonical page: https://skillsregistry.net/skills/princeruhulofficial-mcp-tool-guardian-20260730  
JSON: https://api.skillsregistry.net/v1/skills/princeruhulofficial-mcp-tool-guardian-20260730

## Description

Protects AI agents from bad tool outputs, schema mismatches, and tool poisoning by validating, sanitizing, and scoring reliability of tool responses.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** verified
- **Last scanned:** 2026-08-29

## Facts

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

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/lwp775o8mm)
- **Repository:** <https://github.com/princeruhulofficial/mcp-tool-guardian>

## 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": "princeruhulofficial-mcp-tool-guardian-20260730"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/princeruhulofficial-mcp-tool-guardian-20260730` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/princeruhulofficial-mcp-tool-guardian-20260730/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