# update_event

Update event properties. Only specified fields are changed. Attendees and recurrence rules cannot be modified via automation.

Agent View of the PolicyLayer registry record for `update_event`. HTML page: https://policylayer.com/tools/io-github-heznpc-iconnect/update-event

## Facts

- Tool: `update_event`
- Server: Iconnect (`iconnect-mcp`) — https://policylayer.com/tools/io-github-heznpc-iconnect.md
- Install: `npx -y iconnect-mcp`
- Homepage: https://github.com/heznpc/iConnect
- 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": "update_event",
    "arguments": {}
  }
}
```

## Why update_event is rated Medium

This tool modifies existing calendar event data (Write category) but cannot delete events or make irreversible changes. The severity is medium because misconfigured updates could disrupt calendar schedules affecting multiple users, but the tool's inability to modify attendees or recurrence rules limits the scope of unintended changes an AI agent could cause.

From the tool's own definition: "Tool name 'update_event' and description 'Update event properties' indicates modification of calendar event data."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Iconnect (278)

- `delete_contact` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-contact.md
- `delete_event` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-event.md
- `delete_note` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-note.md
- `delete_photos` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-photos.md
- `delete_playlist` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-playlist.md
- `delete_reminder` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-reminder.md
- `delete_reminder_list` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-reminder-list.md
- `delete_shortcut` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-shortcut.md
- `memory_forget` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/memory-forget.md
- `move_note` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/move-note.md
- `remove_from_playlist` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/remove-from-playlist.md
- `semantic_clear` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/semantic-clear.md
- `spotlight_clear` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/spotlight-clear.md
- `trash_file` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/trash-file.md
- `activate_tab` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/activate-tab.md
- `ai_agent` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-agent.md
- `ai_chat` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-chat.md
- `ai_plan_metrics` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-plan-metrics.md
- `connect_bluetooth` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/connect-bluetooth.md
- `disconnect_bluetooth` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/disconnect-bluetooth.md
- `edit_shortcut` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/edit-shortcut.md
- `event_subscribe` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/event-subscribe.md
- `generate_image` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/generate-image.md
- `generate_text` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/generate-text.md
- `gws_raw` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/gws-raw.md
- `import_shortcut` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/import-shortcut.md
- `keynote_start_slideshow` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/keynote-start-slideshow.md
- `launch_app` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/launch-app.md
- `local_llm_generate` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/local-llm-generate.md
- `minimize_window` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/minimize-window.md
- …and 248 more: https://policylayer.com/tools/io-github-heznpc-iconnect.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=io-github-heznpc-iconnect · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-heznpc-iconnect