# add_to_blacklist

고객을 블랙리스트에 추가합니다.

Agent View of the PolicyLayer registry record for `add_to_blacklist`. HTML page: https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/add-to-blacklist

## Facts

- Tool: `add_to_blacklist`
- Server: Reservation Platform MCP Server (`pak3430/reservation-platform-mcp-server`) — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server.md
- Homepage: https://github.com/pak3430/Reservation-Platform-MCP-Server
- 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": "add_to_blacklist",
    "arguments": {}
  }
}
```

## Why add_to_blacklist is rated Medium

This tool creates or modifies blacklist records by adding customers, which is a reversible write operation. While it affects customer access/privileges, it does not permanently delete data or move money. The severity is high because misuse could harm customer relationships and business operations by incorrectly blocking legitimate customers, but it is reversible (customers can be removed from blacklists).

From the tool's own definition: "Tool name 'add_to_blacklist' and description '고객을 블랙리스트에 추가합니다' (translates to 'Adds a customer to the blacklist') indicates creation/modification of customer blacklist records."

## Use case

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

## Recommended policy (PolicyLayer)

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

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

## Other tools on Reservation Platform MCP Server (27)

- `async_tool` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/async-tool.md
- `custom_name` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/custom-name.md
- `flexible_task` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/flexible-task.md
- `greet` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/greet.md
- `greeting` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/greeting.md
- `my_tool` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/my-tool.md
- `tool_with_context` — Other — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/tool-with-context.md
- `calculate_platform_fees` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/calculate-platform-fees.md
- `check_duplicate_reservations` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/check-duplicate-reservations.md
- `check_time_slot` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/check-time-slot.md
- `check_worker_status` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/check-worker-status.md
- `echo_tool` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/echo-tool.md
- `get_blacklist` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-blacklist.md
- `get_info` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-info.md
- `get_noshow_customers` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-noshow-customers.md
- `get_reservations_by_date` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-reservations-by-date.md
- `get_reservations_by_platform` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-reservations-by-platform.md
- `get_revenue_summary` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-revenue-summary.md
- `get_today_reservations` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-today-reservations.md
- `get_week_reservations` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/get-week-reservations.md
- `introspect` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/introspect.md
- `log_progress` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/log-progress.md
- `long_running_task` — Read — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/long-running-task.md
- `generate_reminder_message` — Write — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/generate-reminder-message.md
- `schedule_task` — Write — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/schedule-task.md
- `store_data` — Write — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/store-data.md
- `sync_platform_ical` — Write — https://policylayer.com/tools/pak3430-reservation-platform-mcp-server/sync-platform-ical.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=pak3430-reservation-platform-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/pak3430-reservation-platform-mcp-server