AI agents call search_tools to retrieve information from MCP Proxy without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on naming convention and context within a tool discovery/orchestration server, 'search_tools' most likely retrieves metadata about available tools without modifying system state. The empty description reduces confidence, but the pattern established by sibling tools like 'list_all_tools' and 'get_tool_info' strongly suggests this is a Read operation.
From the tool's definition Tool name 'search_tools' combined with server functionality for querying and listing tools (sibling tools include 'list_all_tools', 'list_available_servers', 'get_tool_info'). The tool appears designed to search or query available MCP server tools.
Attacks that exploit this kind of access
search_tools. It is categorised as a Read tool in the MCP Proxy MCP Server, which means it retrieves data without modifying state.
Register the MCP Proxy MCP server in PolicyLayer and add a rule for search_tools: 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 MCP Proxy. Nothing to install.
search_tools 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 search_tools 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 search_tools. 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.
search_tools is provided by the MCP Proxy MCP server (lizthedeveloper/mcp_proxy). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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