# prepare-create-hat

Prepare a transaction to create a new hat in the Hats Protocol hierarchy

Agent View of the PolicyLayer registry record for `prepare-create-hat`. HTML page: https://policylayer.com/tools/dennisonbertram-mcp-hats/prepare-create-hat

## Facts

- Tool: `prepare-create-hat`
- Server: Hats Protocol MCP Server (`dennisonbertram/mcp-hats`) — https://policylayer.com/tools/dennisonbertram-mcp-hats.md
- Homepage: https://github.com/dennisonbertram/mcp-hats
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "prepare-create-hat",
    "arguments": {}
  }
}
```

## Why prepare-create-hat is rated Medium

This tool creates new decentralized organizational roles (hats) in a blockchain hierarchy. While the action is reversible in principle (hats can be burned or transferred), creating new roles modifies organizational permission structures that may grant privileges to accounts or alter governance relationships.

From the tool's own definition: "Tool name 'prepare-create-hat' and description 'Prepare a transaction to create a new hat in the Hats Protocol hierarchy' indicate creation of new organizational role structures."

## Use case

AI agents use prepare-create-hat to create or update resources in Hats Protocol MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hats Protocol MCP Server environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Hats Protocol MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "prepare-create-hat": {
      "limits": [
        {
          "counter": "prepare-create-hat_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Hats Protocol MCP Server (10)

- `prepare-burn-hat` — Destructive — https://policylayer.com/tools/dennisonbertram-mcp-hats/prepare-burn-hat.md
- `check-hat-wearer` — Read — https://policylayer.com/tools/dennisonbertram-mcp-hats/check-hat-wearer.md
- `get-hat-details` — Read — https://policylayer.com/tools/dennisonbertram-mcp-hats/get-hat-details.md
- `get-tree-structure` — Read — https://policylayer.com/tools/dennisonbertram-mcp-hats/get-tree-structure.md
- `list-networks` — Read — https://policylayer.com/tools/dennisonbertram-mcp-hats/list-networks.md
- `query-hats-by-wearer` — Read — https://policylayer.com/tools/dennisonbertram-mcp-hats/query-hats-by-wearer.md
- `prepare-mint-hat` — Write — https://policylayer.com/tools/dennisonbertram-mcp-hats/prepare-mint-hat.md
- `prepare-mint-top-hat` — Write — https://policylayer.com/tools/dennisonbertram-mcp-hats/prepare-mint-top-hat.md
- `prepare-transfer-hat` — Write — https://policylayer.com/tools/dennisonbertram-mcp-hats/prepare-transfer-hat.md
- `set-api-key` — Write — https://policylayer.com/tools/dennisonbertram-mcp-hats/set-api-key.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=dennisonbertram-mcp-hats · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dennisonbertram-mcp-hats