设置用户自定义规则 - 启用或禁用特定规则
AI agents use set_user_rules to create or update resources in JoyCode MCP Server - FOP Workflow Assistant — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your JoyCode MCP Server - FOP Workflow Assistant environment.
This tool modifies user-configurable rules and preferences in the FOP workflow system, which is a reversible write operation. It does not delete data permanently, execute arbitrary code, move money, or trigger uncontrollable external operations. The impact is scoped to rule configuration management.
From the tool's definition Tool name 'set_user_rules' combined with description '设置用户自定义规则 - 启用或禁用特定规则' (set user custom rules - enable or disable specific rules) indicates modification of user configuration settings.
Documented attack patterns abuse exactly the kind of access set_user_rules gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and JoyCode MCP Server - FOP Workflow Assistant, and nothing reaches the server without passing your rules. This is the rule we recommend for set_user_rules:
{
"version": "1",
"default": "deny",
"tools": {
"set_user_rules": {
"limits": [
{
"counter": "set_user_rules_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_user_rules stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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设置用户自定义规则 - 启用或禁用特定规则. It is categorised as a Write tool in the JoyCode MCP Server - FOP Workflow Assistant MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the JoyCode MCP Server - FOP Workflow Assistant MCP server in PolicyLayer and add a rule for set_user_rules: 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 JoyCode MCP Server - FOP Workflow Assistant. Nothing to install.
set_user_rules is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_user_rules 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 set_user_rules. 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.
set_user_rules is provided by the JoyCode MCP Server - FOP Workflow Assistant MCP server (shaun888/easy-workflow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 15 JoyCode MCP Server - FOP Workflow Assistant tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
15 JoyCode MCP Server - FOP Workflow Assistant tools catalogued and risk-classified — across an index of 42,500+ MCP servers.