# stopSubscription

关闭指定订阅，释放 WebSocket 连接和缓冲区。已关闭的订阅 ID 不可复用。

Agent View of the PolicyLayer registry record for `stopSubscription`. HTML page: https://policylayer.com/tools/bybit-exchange-trading-mcp/stopsubscription

## Facts

- Tool: `stopSubscription`
- Server: Bybit MCP Server (`bybit-exchange/trading-mcp`) — https://policylayer.com/tools/bybit-exchange-trading-mcp.md
- Homepage: https://github.com/bybit-exchange/trading-mcp
- Risk category: Execute (High 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": "stopSubscription",
    "arguments": {}
  }
}
```

## Why stopSubscription is rated High

This tool executes an operation that closes subscriptions and deallocates resources. While not creating, modifying, or deleting persistent data, it triggers an external system action (WebSocket termination) whose effects depend on which subscription ID is targeted.

From the tool's own definition: "Tool name 'stopSubscription' and description indicate it terminates WebSocket connections and releases buffers ('关闭指定订阅，释放 WebSocket 连接和缓冲区'). This is a state-changing operation that manipulates active connections."

## Use case

AI agents invoke stopSubscription to trigger actions in Bybit MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "stopSubscription": {
      "limits": [
        {
          "counter": "stopsubscription_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Bybit MCP Server (379)

- `batchCancelOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/batchcancelorders.md
- `cancelAllOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallorders.md
- `cancelAllQuotes` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallquotes.md
- `cancelAllRfqs` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallrfqs.md
- `cancelAllSpreadOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelallspreadorders.md
- `cancelOrder` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelorder.md
- `cancelRfq` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelrfq.md
- `cancelSpreadOrder` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/cancelspreadorder.md
- `closeComboBot` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/closecombobot.md
- `closeFGridBot` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/closefgridbot.md
- `closeFMartBot` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/closefmartbot.md
- `removeAd` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/removead.md
- `upgradeToUta` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/upgradetouta.md
- `wsBatchCancelOrders` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/wsbatchcancelorders.md
- `wsCancelOrder` — Destructive — https://policylayer.com/tools/bybit-exchange-trading-mcp/wscancelorder.md
- `acceptNonLpQuote` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/acceptnonlpquote.md
- `closeGridBot` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/closegridbot.md
- `confirmNewRiskLimit` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/confirmnewrisklimit.md
- `createComboBot` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/createcombobot.md
- `createTwapStrategy` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/createtwapstrategy.md
- `movePosition` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/moveposition.md
- `resetMmp` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/resetmmp.md
- `setTradingStop` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/settradingstop.md
- `stopStrategy` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/stopstrategy.md
- `wsAmendOrder` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/wsamendorder.md
- `wsBatchAmendOrders` — Execute — https://policylayer.com/tools/bybit-exchange-trading-mcp/wsbatchamendorders.md
- `accountBorrow` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountborrow.md
- `accountFixedBorrow` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountfixedborrow.md
- `accountNoConvertRepay` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountnoconvertrepay.md
- `accountRepay` — Financial — https://policylayer.com/tools/bybit-exchange-trading-mcp/accountrepay.md
- …and 349 more: https://policylayer.com/tools/bybit-exchange-trading-mcp.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`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=bybit-exchange-trading-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/bybit-exchange-trading-mcp