AI agents call read_file_content 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 file content from Google Drive without side effects. It performs data retrieval only (reading/querying), matching the 'Read' category definition. The read-only nature of the server and absence of any write, destructive, or execute operations keeps severity low.
From the tool's definition Tool name 'read_file_content' and description explicitly states 'Read the content of a Drive file.' The server description emphasizes it is a 'read-only' service that 'allows searching files, reading file content'.
Attacks that exploit this kind of access
Read the content of a Drive file. Google native files (Docs/Sheets/Slides). 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 read_file_content: 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.
read_file_content 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 read_file_content 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 read_file_content. 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.
read_file_content 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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