Check access permissions for a spreadsheet. Returns information about what operations are allowed.
AI agents call sheets_check_access to retrieve information from Mcp Gsheets without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool checks and retrieves access permission information for a spreadsheet. It is a read-only query operation with no side effects—it does not modify data, execute operations, delete resources, or affect financial state. The low severity reflects minimal blast radius: even if misused by an AI agent, it only exposes permission metadata without enabling further actions on its own.
From the tool's definition Tool name 'sheets_check_access' and description stating it 'returns information about what operations are allowed' indicate a query operation that retrieves permission metadata without modifying state.
Attacks that exploit this kind of access
Check access permissions for a spreadsheet. Returns information about what operations are allowed. It is categorised as a Read tool in the Mcp Gsheets MCP Server, which means it retrieves data without modifying state.
Register the Mcp Gsheets MCP server in PolicyLayer and add a rule for sheets_check_access: 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 Gsheets. Nothing to install.
sheets_check_access 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 sheets_check_access 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 sheets_check_access. 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.
sheets_check_access is provided by the Mcp Gsheets MCP server (mcp-gsheets). 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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