# hardened-mcp-server

> hardened-mcp-server — jkelly-dev1-hardened-mcp-server. Use this tool when you need to evaluate the effectiveness of hashing tool definitions in detecting unauthorized changes, particularly in scenarios where approval-dialog-based pins may be insufficient. It measures policy compliance across field sets and canonicalization methods, providing insights into the trade-offs between detection accuracy and false alarm rates. Ideal for use cases requiring robust change detection and policy evaluation, such as security auditing and compliance monitoring.

Canonical page: https://skillsregistry.net/skills/jkelly-dev1-hardened-mcp-server  
JSON: https://api.skillsregistry.net/v1/skills/jkelly-dev1-hardened-mcp-server

## Description

An MCP server that measures how effectively hashing tool definitions detects unauthorized changes, evaluating 20 policies across field sets and canonicalization methods. It demonstrates that approval-dialog-based pins miss most attacks, with structural/semantic normalization being free but text folding trading detection for fewer false alarms.

## 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:** finance
- **Updated:** 2026-08-29

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/n8pm9whmb6)
- **Repository:** <https://github.com/jkelly-dev1/hardened-mcp-server>

## 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": "jkelly-dev1-hardened-mcp-server"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/jkelly-dev1-hardened-mcp-server` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/jkelly-dev1-hardened-mcp-server/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