AI agents call ddg_text_search to retrieve information from Basic MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves search results from DuckDuckGo. It is a read-only operation that queries external data without creating, modifying, deleting, executing code, or committing financial obligations. The blast radius of misuse is minimal—an agent could only retrieve potentially sensitive information from public search results, which is a low-severity risk.
From the tool's definition Tool name 'ddg_text_search' and description 'Search DuckDuckGo for text results' indicate a query/retrieval operation with no data modification or side effects.
Attacks that exploit this kind of access
Search DuckDuckGo for text results. It is categorised as a Read tool in the Basic MCP MCP Server, which means it retrieves data without modifying state.
Register the Basic MCP server in PolicyLayer and add a rule for ddg_text_search: 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 Basic MCP. Nothing to install.
ddg_text_search 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 ddg_text_search 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 ddg_text_search. 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.
ddg_text_search is provided by the Basic MCP server (nimishgautam/basic-mcp). 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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