Query Google Search via Gemini 2.5 Flash grounding.
AI agents call grounded_query to retrieve information from Claude Flow 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 Google via Gemini's grounding feature. It reads and returns information without creating, modifying, deleting, or executing anything. The blast radius of misuse is minimal—an agent could retrieve unwanted information or spam queries, but cannot alter systems or commit harmful actions.
From the tool's definition Tool name includes 'query' and description states 'Query Google Search' — a retrieval operation with no modification or execution capability. The grounding mechanism is a lookup mechanism, not an action with side effects.
Attacks that exploit this kind of access
Query Google Search via Gemini 2.5 Flash grounding. It is categorised as a Read tool in the Claude Flow MCP Server, which means it retrieves data without modifying state.
Register the Claude Flow MCP server in PolicyLayer and add a rule for grounded_query: 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 Claude Flow. Nothing to install.
grounded_query 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 grounded_query 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 grounded_query. 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.
grounded_query is provided by the Claude Flow MCP server (claude-flow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.