Get all merged cell ranges for a specific sheet. Returns each merge as A1 notation and GridRange coordinates.
AI agents call sheets_get_merged_cells 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 retrieves information about merged cell ranges in a spreadsheet. It performs a query operation that returns data (A1 notation and GridRange coordinates) without creating, modifying, deleting, or executing any operations. This is a straightforward Read action with minimal security risk.
From the tool's definition Tool name 'sheets_get_merged_cells' and description 'Get all merged cell ranges' — the verb 'Get' and the read-only nature of retrieving metadata about merged cells with no modification or side effects.
Attacks that exploit this kind of access
Get all merged cell ranges for a specific sheet. Returns each merge as A1 notation and GridRange coordinates. 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_get_merged_cells: 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_get_merged_cells 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_get_merged_cells 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_get_merged_cells. 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_get_merged_cells 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.
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