# get_sz50_stocks

SZSE 50 constituents.

Agent View of the PolicyLayer registry record for `get_sz50_stocks`. HTML page: https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-sz50-stocks

## Facts

- Tool: `get_sz50_stocks`
- Server: A-Share MCP Server (`24mlight/a-share-mcp-is-just-i-need`) — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need.md
- Homepage: https://github.com/24mlight/a-share-mcp-is-just-i-need
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_sz50_stocks",
    "arguments": {}
  }
}
```

## Why get_sz50_stocks is rated Low

This tool retrieves reference data about which stocks constitute the Shenzhen Stock Exchange 50 index. It is a passive read operation with no side effects, no code execution, and no financial transactions. The blast radius of misuse is minimal—an AI agent can only receive incorrect stock list information, which has no direct operational impact.

From the tool's own definition: "Tool is named 'get_sz50_stocks' with description 'SZSE 50 constituents,' indicating data retrieval of stock index composition. Consistent with sibling tools (get_all_stock, get_balance_data, get_cash_flow_data, etc.) which are all read-only data queries."

## Use case

AI agents call get_sz50_stocks to retrieve information from A-Share MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches A-Share MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_sz50_stocks": {}
  }
}
```

## Other tools on A-Share MCP Server (40)

- `get_adjust_factor_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-adjust-factor-data.md
- `get_all_stock` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-all-stock.md
- `get_balance_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-balance-data.md
- `get_cash_flow_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-cash-flow-data.md
- `get_deposit_rate_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-deposit-rate-data.md
- `get_dividend_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-dividend-data.md
- `get_dupont_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-dupont-data.md
- `get_fina_indicator` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-fina-indicator.md
- `get_forecast_report` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-forecast-report.md
- `get_growth_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-growth-data.md
- `get_historical_k_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-historical-k-data.md
- `get_hs300_stocks` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-hs300-stocks.md
- `get_index_constituents` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-index-constituents.md
- `get_industry_members` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-industry-members.md
- `get_last_n_trading_days` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-last-n-trading-days.md
- `get_latest_trading_date` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-latest-trading-date.md
- `get_loan_rate_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-loan-rate-data.md
- `get_market_analysis_timeframe` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-market-analysis-timeframe.md
- `get_money_supply_data_month` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-money-supply-data-month.md
- `get_money_supply_data_year` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-money-supply-data-year.md
- `get_month_end_trading_dates` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-month-end-trading-dates.md
- `get_operation_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-operation-data.md
- `get_performance_express_report` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-performance-express-report.md
- `get_profit_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-profit-data.md
- `get_recent_trading_range` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-recent-trading-range.md
- `get_required_reserve_ratio_data` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-required-reserve-ratio-data.md
- `get_stock_analysis` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-stock-analysis.md
- `get_stock_basic_info` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-stock-basic-info.md
- `get_stock_industry` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-stock-industry.md
- `get_suspensions` — Read — https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need/get-suspensions.md
- …and 10 more: https://policylayer.com/tools/24mlight-a-share-mcp-is-just-i-need.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=24mlight-a-share-mcp-is-just-i-need · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/24mlight-a-share-mcp-is-just-i-need