从 ERP 系统导出新房合同数据（认购合同、签约合同、解约合同），生成三个独立的 Excel 文件。不传时间时默认查询当月第一天到今天。时间范围超过3个月时自动使用异步导出。
Part of the Yjzf server.
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AI agents invoke new_house_contract_export to trigger processes or run actions in Yjzf. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
new_house_contract_export can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"new_house_contract_export": {
"limits": [
{
"counter": "new_house_contract_export_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Yjzf policy for all 16 tools.
These attack patterns abuse exactly the kind of access new_house_contract_export gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
从 ERP 系统导出新房合同数据（认购合同、签约合同、解约合同），生成三个独立的 Excel 文件。不传时间时默认查询当月第一天到今天。时间范围超过3个月时自动使用异步导出。. It is categorised as a Execute tool in the Yjzf MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Yjzf MCP server in PolicyLayer and add a rule for new_house_contract_export: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Yjzf. Nothing to install.
new_house_contract_export is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the new_house_contract_export rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for new_house_contract_export. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
new_house_contract_export is provided by the Yjzf MCP server (@yjzf/mcp-server-yjzf). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Yjzf tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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