# decline-calendar-event

Decline invitation to the specified event in a user calendar. If the event allows proposals for new times, on declining the event, an invitee can choose to suggest an alternative time by including the proposedNewTime parameter. For more information on how to propose a time, and how to receive and accept a new time proposal, see Propose new meeting times. 💡 TIP: Declines a meeting invitation. Optional body: { sendResponse: true, comment: 'Cannot attend, conflict.' }. The event remains in the calendar as declined unless the user deletes it.

Agent View of the PolicyLayer registry record for `decline-calendar-event`. HTML page: https://policylayer.com/tools/jo3zik-ms-365-mcp-server/decline-calendar-event

## Facts

- Tool: `decline-calendar-event`
- Server: Ms 365 (`@jo3zik/ms-365-mcp-server`) — https://policylayer.com/tools/jo3zik-ms-365-mcp-server.md
- Install: `npx -y @jo3zik/ms-365-mcp-server`
- Homepage: https://www.npmjs.com/package/@jo3zik/ms-365-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 5 (2 required)
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `body` | object | yes |  |
| `confirm` | boolean | no | For destructive operations when the confirm gate is enabled (MS365_MCP_REQUIRE_CONFIRM=true; off by default). Set to true only after the user has explicitly app |
| `eventId` | string | yes | Value for the 'eventId' path segment. Pass it under the name 'eventId', not as 'id'. Use the 'id' field of the event object as returned by Microsoft Graph. |
| `includeHeaders` | boolean | no | Include response headers (including ETag) in the response metadata |
| `excludeResponse` | boolean | no | Exclude the full response body and only return success or failure indication |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "decline-calendar-event",
    "arguments": {
      "body": {},
      "eventId": "<eventId>"
    }
  }
}
```

## Why decline-calendar-event is rated Medium

An AI agent can call decline-calendar-event faster than any human can review: one bad instruction and it creates or modifies resources in Ms 365 by the hundred, each call as confident as the last.

Risk signals: Accepts raw HTML/template content (body)

## Use case

AI agents use decline-calendar-event to create or update resources in Ms 365, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ms 365 environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Ms 365:

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

## Other tools on Ms 365 (193)

- `cancel-calendar-event` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/cancel-calendar-event.md
- `clear-excel-range` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/clear-excel-range.md
- `delete-calendar` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-calendar.md
- `delete-calendar-event` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-calendar-event.md
- `delete-contact-folder` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-contact-folder.md
- `delete-drive-item-permission` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-drive-item-permission.md
- `delete-excel-range` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-excel-range.md
- `delete-excel-table-row` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-excel-table-row.md
- `delete-focused-inbox-override` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-focused-inbox-override.md
- `delete-mail-attachment` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-attachment.md
- `delete-mail-folder` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-folder.md
- `delete-mail-message` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-message.md
- `delete-mail-rule` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-mail-rule.md
- `delete-my-calendar-permission` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-my-calendar-permission.md
- `delete-onedrive-file` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-onedrive-file.md
- `delete-onenote-page` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-onenote-page.md
- `delete-outlook-contact` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-outlook-contact.md
- `delete-planner-bucket` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-planner-bucket.md
- `delete-planner-task-message` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-planner-task-message.md
- `delete-specific-calendar-event` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-specific-calendar-event.md
- `delete-subscription` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-subscription.md
- `delete-todo-linked-resource` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-todo-linked-resource.md
- `delete-todo-task` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-todo-task.md
- `delete-todo-task-list` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/delete-todo-task-list.md
- `graph-batch` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/graph-batch.md
- `logout` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/logout.md
- `remove-account` — Destructive — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/remove-account.md
- `parse-teams-url` — Execute — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/parse-teams-url.md
- `tentatively-accept-calendar-event` — Execute — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/tentatively-accept-calendar-event.md
- `dismiss-calendar-event-reminder` — Read — https://policylayer.com/tools/jo3zik-ms-365-mcp-server/dismiss-calendar-event-reminder.md
- …and 163 more: https://policylayer.com/tools/jo3zik-ms-365-mcp-server.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=jo3zik-ms-365-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/jo3zik-ms-365-mcp-server