# calendar

A write tool on the PyApple MCP Tools MCP server.

Agent View of the PolicyLayer registry record for `calendar`. HTML page: https://policylayer.com/tools/54yyyu-pyapple-mcp/calendar

## Facts

- Tool: `calendar`
- Server: PyApple MCP Tools (`54yyyu/pyapple-mcp`) — https://policylayer.com/tools/54yyyu-pyapple-mcp.md
- Homepage: https://github.com/54yyyu/pyapple-mcp
- Risk category: Write (Medium risk)
- Registry record: grade B, 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": "calendar",
    "arguments": {}
  }
}
```

## Why calendar is rated Medium

The server description explicitly mentions Calendar as one of the integrated macOS apps with automation capabilities. Calendar tools typically support both reading and writing (creating/modifying events).

From the tool's own definition: "Tool name 'calendar' on a server described as enabling 'natural language control and automation of Apple ecosystem apps' including Calendar."

## Use case

AI agents use calendar to create or update resources in PyApple MCP Tools, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your PyApple MCP Tools environment.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "calendar": {
      "limits": [
        {
          "counter": "calendar_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on PyApple MCP Tools (7)

- `maps` — Other — https://policylayer.com/tools/54yyyu-pyapple-mcp/maps.md
- `contacts` — Read — https://policylayer.com/tools/54yyyu-pyapple-mcp/contacts.md
- `notes` — Read — https://policylayer.com/tools/54yyyu-pyapple-mcp/notes.md
- `web_search` — Read — https://policylayer.com/tools/54yyyu-pyapple-mcp/web-search.md
- `mail` — Write — https://policylayer.com/tools/54yyyu-pyapple-mcp/mail.md
- `messages` — Write — https://policylayer.com/tools/54yyyu-pyapple-mcp/messages.md
- `reminders` — Write — https://policylayer.com/tools/54yyyu-pyapple-mcp/reminders.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=54yyyu-pyapple-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/54yyyu-pyapple-mcp