List all interception rules sorted by priority.
AI agents call proxy_list_rules to retrieve information from Proxy without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves interception rules from a MITM proxy but does not modify, delete, or execute actions. While the proxy itself is a powerful tool for network manipulation, this specific tool only queries its configuration.
From the tool's definition Tool name 'proxy_list_rules' and description 'List all interception rules sorted by priority' indicate retrieval of configuration data. The verb 'list' and lack of modification language confirms read-only behavior.
Documented attack patterns abuse exactly the kind of access proxy_list_rules gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Proxy, and nothing reaches the server without passing your rules. This is the rule we recommend for proxy_list_rules:
{
"version": "1",
"default": "deny",
"tools": {
"proxy_list_rules": {}
}
}proxy_list_rules is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all interception rules sorted by priority. It is categorised as a Read tool in the Proxy MCP Server, which means it retrieves data without modifying state.
Register the Proxy MCP server in PolicyLayer and add a rule for proxy_list_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 Proxy. Nothing to install.
proxy_list_rules is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the proxy_list_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 proxy_list_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.
proxy_list_rules is provided by the Proxy MCP server (yfe404/proxy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Proxy, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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89 Proxy tools catalogued and risk-classified — across an index of 43,000+ MCP servers.