Retrieves the current state of a sheet, including rows, columns, and cells
AI agents call get_sheet_by_url to retrieve information from Smartsheet MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs data retrieval only. It accesses sheet information (rows, columns, cells) but does not create, modify, delete, or execute any operations. The verb 'retrieves' and the passive scope (reading state) confirm this is a Read category tool. Severity is low because unauthorized access to sheet data, while a concern, has no destructive or financial impact by itself.
From the tool's definition Tool name 'get_sheet_by_url' and description 'Retrieves the current state of a sheet, including rows, columns, and cells' indicate a read-only operation that fetches data without modification.
Attacks that exploit this kind of access
Retrieves the current state of a sheet, including rows, columns, and cells. It is categorised as a Read tool in the Smartsheet MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Smartsheet MCP Server MCP server in PolicyLayer and add a rule for get_sheet_by_url: 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 Smartsheet MCP Server. Nothing to install.
get_sheet_by_url 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 get_sheet_by_url 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 get_sheet_by_url. 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.
get_sheet_by_url is provided by the Smartsheet MCP Server MCP server (thomaswtwrt/smar-mcp). 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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