# webhooks_update

Patch a webhook subscription. Pass only the fields you want to change. Replacing

Agent View of the PolicyLayer registry record for `webhooks_update`. HTML page: https://policylayer.com/tools/com-getmunin-munin/webhooks-update

## Facts

- Tool: `webhooks_update`
- Server: Munin (`https://mcp.getmunin.com/mcp`) — https://policylayer.com/tools/com-getmunin-munin.md
- Homepage: https://github.com/getmunin/munin
- Risk category: Write (Medium risk)
- Registry record: grade D, identity unverified
- Server auth posture: gated
- 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": "webhooks_update",
    "arguments": {}
  }
}
```

## Why webhooks_update is rated Medium

The tool modifies existing webhook configuration in the system. While webhooks control external integrations and their misconfiguration could have downstream effects, the operation is reversible (webhooks can be patched back to previous states). This qualifies as Write rather than Execute because it changes data/configuration directly rather than triggering immediate external actions.

From the tool's own definition: "webhooks_update patches/modifies a webhook subscription configuration. The description indicates this is a reversible update operation ('Patch a webhook subscription. Pass only the fields you want to change. Replacing')."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Munin (241)

- `analytics_revoke_tracker` — Destructive — https://policylayer.com/tools/com-getmunin-munin/analytics-revoke-tracker.md
- `analytics_rotate_tracker_key` — Destructive — https://policylayer.com/tools/com-getmunin-munin/analytics-rotate-tracker-key.md
- `bookings_cancel_booking` — Destructive — https://policylayer.com/tools/com-getmunin-munin/bookings-cancel-booking.md
- `bookings_cancel_my_booking` — Destructive — https://policylayer.com/tools/com-getmunin-munin/bookings-cancel-my-booking.md
- `cms_delete_asset` — Destructive — https://policylayer.com/tools/com-getmunin-munin/cms-delete-asset.md
- `cms_delete_collection` — Destructive — https://policylayer.com/tools/com-getmunin-munin/cms-delete-collection.md
- `cms_delete_entry` — Destructive — https://policylayer.com/tools/com-getmunin-munin/cms-delete-entry.md
- `connectors_delete_connection` — Destructive — https://policylayer.com/tools/com-getmunin-munin/connectors-delete-connection.md
- `conv_delete_attachment` — Destructive — https://policylayer.com/tools/com-getmunin-munin/conv-delete-attachment.md
- `conv_rotate_widget_key` — Destructive — https://policylayer.com/tools/com-getmunin-munin/conv-rotate-widget-key.md
- `crm_delete_segment` — Destructive — https://policylayer.com/tools/com-getmunin-munin/crm-delete-segment.md
- `kb_delete_document` — Destructive — https://policylayer.com/tools/com-getmunin-munin/kb-delete-document.md
- `kb_dismiss_curation_candidate` — Destructive — https://policylayer.com/tools/com-getmunin-munin/kb-dismiss-curation-candidate.md
- `outreach_cancel_scheduled_send` — Destructive — https://policylayer.com/tools/com-getmunin-munin/outreach-cancel-scheduled-send.md
- `slack_unlink_user` — Destructive — https://policylayer.com/tools/com-getmunin-munin/slack-unlink-user.md
- `webhooks_delete` — Destructive — https://policylayer.com/tools/com-getmunin-munin/webhooks-delete.md
- `conv_request_callback` — Execute — https://policylayer.com/tools/com-getmunin-munin/conv-request-callback.md
- `conv_retry_delivery` — Execute — https://policylayer.com/tools/com-getmunin-munin/conv-retry-delivery.md
- `conv_send_email_channel_test` — Execute — https://policylayer.com/tools/com-getmunin-munin/conv-send-email-channel-test.md
- `conv_send_sms_channel_test` — Execute — https://policylayer.com/tools/com-getmunin-munin/conv-send-sms-channel-test.md
- `conv_test_email_channel` — Execute — https://policylayer.com/tools/com-getmunin-munin/conv-test-email-channel.md
- `conv_test_voice_sms_channel` — Execute — https://policylayer.com/tools/com-getmunin-munin/conv-test-voice-sms-channel.md
- `outreach_approve_proposal` — Execute — https://policylayer.com/tools/com-getmunin-munin/outreach-approve-proposal.md
- `seo_submit_urls` — Execute — https://policylayer.com/tools/com-getmunin-munin/seo-submit-urls.md
- `cancel_subscription` — Financial — https://policylayer.com/tools/com-getmunin-munin/cancel-subscription.md
- `outreach_withdraw_proposal` — Financial — https://policylayer.com/tools/com-getmunin-munin/outreach-withdraw-proposal.md
- `analytics_export_config` — Read — https://policylayer.com/tools/com-getmunin-munin/analytics-export-config.md
- `analytics_export_events` — Read — https://policylayer.com/tools/com-getmunin-munin/analytics-export-events.md
- `analytics_get_contact_journey` — Read — https://policylayer.com/tools/com-getmunin-munin/analytics-get-contact-journey.md
- `analytics_get_funnel` — Read — https://policylayer.com/tools/com-getmunin-munin/analytics-get-funnel.md
- …and 211 more: https://policylayer.com/tools/com-getmunin-munin.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=com-getmunin-munin · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-getmunin-munin