从 ERP 系统查询直营城市招商加盟合同列表数据，生成 Excel 文件
Part of the Yjzf server.
Free to start. No card required.
AI agents invoke investment_contract 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.
investment_contract 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": {
"investment_contract": {
"limits": [
{
"counter": "investment_contract_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 investment_contract 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 系统查询直营城市招商加盟合同列表数据，生成 Excel 文件. 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 investment_contract: 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.
investment_contract 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 investment_contract 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 investment_contract. 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.
investment_contract 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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