# buy_stop

A financial tool on the MCP Trader Server MCP server.

Agent View of the PolicyLayer registry record for `buy_stop`. HTML page: https://policylayer.com/tools/af7007-mcp-trader/buy-stop

## Facts

- Tool: `buy_stop`
- Server: MCP Trader Server (`af7007/mcp-trader`) — https://policylayer.com/tools/af7007-mcp-trader.md
- Homepage: https://github.com/Af7007/mcp-trader
- Risk category: Financial (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Approval-gated

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "buy_stop",
    "arguments": {}
  }
}
```

## Why buy_stop is rated Critical

A 'buy_stop' is a standard order type in trading (MetaTrader 5 context confirmed by server description) that places a pending buy order above the current market price, triggering an automated purchase when price reaches the specified level. This commits financial obligations and executes real trades.

From the tool's own definition: "Tool name 'buy_stop' on a server that 'Supports real-time market data, automated trade execution'; sibling tools include buy_limit, buy_market, close_position — all financial trading operations"

## Use case

AI agents use buy_stop to commit financial operations through MCP Trader Server, usually the final step of a payment, billing, or trading workflow. A call moves real money.

## Recommended policy (PolicyLayer)

Verdict: **Approval-gated**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches MCP Trader Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "buy_stop": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}
```

## Other tools on MCP Trader Server (44)

- `cancel_order` — Destructive — https://policylayer.com/tools/af7007-mcp-trader/cancel-order.md
- `close_positions_by_symbol` — Destructive — https://policylayer.com/tools/af7007-mcp-trader/close-positions-by-symbol.md
- `delete_model` — Destructive — https://policylayer.com/tools/af7007-mcp-trader/delete-model.md
- `chat_completion` — Execute — https://policylayer.com/tools/af7007-mcp-trader/chat-completion.md
- `initialize` — Execute — https://policylayer.com/tools/af7007-mcp-trader/initialize.md
- `pull_model` — Execute — https://policylayer.com/tools/af7007-mcp-trader/pull-model.md
- `shutdown` — Execute — https://policylayer.com/tools/af7007-mcp-trader/shutdown.md
- `buy_limit` — Financial — https://policylayer.com/tools/af7007-mcp-trader/buy-limit.md
- `buy_market` — Financial — https://policylayer.com/tools/af7007-mcp-trader/buy-market.md
- `close_all_positions` — Financial — https://policylayer.com/tools/af7007-mcp-trader/close-all-positions.md
- `close_position` — Financial — https://policylayer.com/tools/af7007-mcp-trader/close-position.md
- `login` — Financial — https://policylayer.com/tools/af7007-mcp-trader/login.md
- `order_send` — Financial — https://policylayer.com/tools/af7007-mcp-trader/order-send.md
- `sell_limit` — Financial — https://policylayer.com/tools/af7007-mcp-trader/sell-limit.md
- `sell_market` — Financial — https://policylayer.com/tools/af7007-mcp-trader/sell-market.md
- `sell_stop` — Financial — https://policylayer.com/tools/af7007-mcp-trader/sell-stop.md
- `generate_text` — Other — https://policylayer.com/tools/af7007-mcp-trader/generate-text.md
- `analyze_trading_intent` — Read — https://policylayer.com/tools/af7007-mcp-trader/analyze-trading-intent.md
- `check_ollama_health` — Read — https://policylayer.com/tools/af7007-mcp-trader/check-ollama-health.md
- `copy_rates_from_date` — Read — https://policylayer.com/tools/af7007-mcp-trader/copy-rates-from-date.md
- `copy_rates_from_pos` — Read — https://policylayer.com/tools/af7007-mcp-trader/copy-rates-from-pos.md
- `copy_rates_range` — Read — https://policylayer.com/tools/af7007-mcp-trader/copy-rates-range.md
- `copy_ticks_from_date` — Read — https://policylayer.com/tools/af7007-mcp-trader/copy-ticks-from-date.md
- `copy_ticks_range` — Read — https://policylayer.com/tools/af7007-mcp-trader/copy-ticks-range.md
- `get_account_info` — Read — https://policylayer.com/tools/af7007-mcp-trader/get-account-info.md
- `get_available_models` — Read — https://policylayer.com/tools/af7007-mcp-trader/get-available-models.md
- `get_last_error` — Read — https://policylayer.com/tools/af7007-mcp-trader/get-last-error.md
- `get_symbol_info` — Read — https://policylayer.com/tools/af7007-mcp-trader/get-symbol-info.md
- `get_symbol_info_tick` — Read — https://policylayer.com/tools/af7007-mcp-trader/get-symbol-info-tick.md
- `get_symbols` — Read — https://policylayer.com/tools/af7007-mcp-trader/get-symbols.md
- …and 14 more: https://policylayer.com/tools/af7007-mcp-trader.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=af7007-mcp-trader · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/af7007-mcp-trader