Search cell data and summary fields for a specific sheet by URL
AI agents call search_in_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 a search operation within a sheet, which is a read-only action that retrieves information. No data is created, modified, deleted, or financial operations are involved. The blast radius is minimal—worst case is exposure of sensitive data already accessible through Smartsheet permissions, but the tool itself cannot misuse those permissions beyond querying.
From the tool's definition Tool name 'search_in_sheet_by_url' and description 'Search cell data and summary fields for a specific sheet by URL' indicate querying/retrieving data without modification or deletion.
Attacks that exploit this kind of access
Search cell data and summary fields for a specific sheet by URL. 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 search_in_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.
search_in_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 search_in_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 search_in_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.
search_in_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.
Teams ship this data inside their own products. See what a licence covers →