AI agents call get_cell_value to retrieve information from DataBeak without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The name 'get_cell_value' implies a query or retrieval operation that accesses and returns data from a specific cell in a CSV dataset. This is a read-only operation with no side effects—it does not modify, delete, or execute anything. Even without a description, the semantic meaning of 'get' combined with the server's purpose (data analysis and validation) strongly indicates a Read category tool.
From the tool's definition Tool name 'get_cell_value' indicates retrieval of a single cell's data from a table structure. No description provided, but the name and context (CSV analysis tools on DataBeak server) suggest data retrieval without modification.
Attacks that exploit this kind of access
get_cell_value. It is categorised as a Read tool in the DataBeak MCP Server, which means it retrieves data without modifying state.
Register the DataBeak MCP server in PolicyLayer and add a rule for get_cell_value: 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 DataBeak. Nothing to install.
get_cell_value 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_cell_value 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_cell_value. 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_cell_value is provided by the DataBeak MCP server (jonpspri/databeak). 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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