AI agents call search_files to retrieve information from Drive without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries data from Google Drive without any side effects. It returns search results and file metadata only. The read-only nature of the server and the search-only functionality of this tool place it squarely in the Read category.
From the tool's definition Tool is described as 'Search Google Drive files using a Drive query string' and returns metadata (id, name). Server is explicitly described as 'read-only' with capabilities limited to 'searching files' and 'retrieving file metadata'.
Attacks that exploit this kind of access
Search Google Drive files using a Drive query string. Returns id, name,. It is categorised as a Read tool in the Drive MCP Server, which means it retrieves data without modifying state.
Register the Drive MCP server in PolicyLayer and add a rule for search_files: 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 Drive. Nothing to install.
search_files 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_files 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_files. 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_files is provided by the Drive MCP server (move-32/mcp-server-drive). 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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