AI agents call proxy_clear_traffic to permanently remove resources in Proxy — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Clearing captured traffic data cannot be undone; once deleted from the buffer, the intercepted network traffic is lost. This is an irreversible deletion of collected data, placing it in the Destructive category. Severity is medium because the blast radius is limited to captured proxy traffic data rather than production systems or finances.
From the tool's definition 'Clear all captured traffic from the buffer' — permanently removes captured traffic data, which is irreversible.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access proxy_clear_traffic 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_clear_traffic:
{
"version": "1",
"default": "deny",
"hide": [
"proxy_clear_traffic"
]
}proxy_clear_traffic disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.
Free to start. No card required.
Clear all captured traffic from the buffer. It is categorised as a Destructive tool in the Proxy MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Proxy MCP server in PolicyLayer and add a rule for proxy_clear_traffic: 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_clear_traffic is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the proxy_clear_traffic 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_clear_traffic. 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_clear_traffic 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.
Free to start. No card required.
89 Proxy tools catalogued and risk-classified — across an index of 43,000+ MCP servers.