# stock_register_cyb

A read tool on the China Stock MCP Server MCP server.

Agent View of the PolicyLayer registry record for `stock_register_cyb`. HTML page: https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-register-cyb

## Facts

- Tool: `stock_register_cyb`
- Server: China Stock MCP Server (`peikuo/china-stock-mcp-server`) — https://policylayer.com/tools/peikuo-china-stock-mcp-server.md
- Homepage: https://github.com/peikuo/china-stock-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade C, 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": "stock_register_cyb",
    "arguments": {}
  }
}
```

## Why stock_register_cyb is rated Low

Based on the server context (read-only Chinese stock market data via AKShare) and the naming pattern consistent with other sibling tools (all appear to be data retrieval tools), this tool likely retrieves registration or listing data for ChiNext Board (CYB = 创业板) stocks. No description is available to confirm, so confidence is reduced.

From the tool's own definition: "Tool name 'stock_register_cyb' and server description mentions 'fetch real-time and historical data' — no description provided for this specific tool."

## Use case

AI agents call stock_register_cyb to retrieve information from China Stock 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 China Stock MCP Server:

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

## Other tools on China Stock MCP Server (350)

- `news_report_time_baidu` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/news-report-time-baidu.md
- `news_trade_notify_dividend_baidu` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/news-trade-notify-dividend-baidu.md
- `news_trade_notify_suspend_baidu` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/news-trade-notify-suspend-baidu.md
- `stock_a_all_pb` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-all-pb.md
- `stock_a_below_net_asset_statistics` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-below-net-asset-statistics.md
- `stock_a_congestion_lg` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-congestion-lg.md
- `stock_a_gxl_lg` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-gxl-lg.md
- `stock_a_high_low_statistics` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-high-low-statistics.md
- `stock_a_indicator_lg` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-indicator-lg.md
- `stock_a_ttm_lyr` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-a-ttm-lyr.md
- `stock_account_statistics_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-account-statistics-em.md
- `stock_add_stock` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-add-stock.md
- `stock_allotment_cninfo` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-allotment-cninfo.md
- `stock_analyst_detail_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-analyst-detail-em.md
- `stock_analyst_rank_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-analyst-rank-em.md
- `stock_balance_sheet_by_report_delisted_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-balance-sheet-by-report-delisted-em.md
- `stock_balance_sheet_by_report_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-balance-sheet-by-report-em.md
- `stock_balance_sheet_by_yearly_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-balance-sheet-by-yearly-em.md
- `stock_bid_ask_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-bid-ask-em.md
- `stock_bj_a_spot_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-bj-a-spot-em.md
- `stock_board_change_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-change-em.md
- `stock_board_concept_cons_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-cons-em.md
- `stock_board_concept_hist_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-hist-em.md
- `stock_board_concept_hist_min_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-hist-min-em.md
- `stock_board_concept_index_ths` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-index-ths.md
- `stock_board_concept_info_ths` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-info-ths.md
- `stock_board_concept_name_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-name-em.md
- `stock_board_concept_spot_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-concept-spot-em.md
- `stock_board_industry_cons_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-industry-cons-em.md
- `stock_board_industry_hist_em` — Read — https://policylayer.com/tools/peikuo-china-stock-mcp-server/stock-board-industry-hist-em.md
- …and 320 more: https://policylayer.com/tools/peikuo-china-stock-mcp-server.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=peikuo-china-stock-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/peikuo-china-stock-mcp-server