AI agents call spreadsheet_get_cell to retrieve information from FreeCAD Robust MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears designed to query or retrieve cell values from a spreadsheet within FreeCAD, which is a non-destructive read operation with no side effects. While the description is empty (lowering confidence slightly), the naming convention strongly suggests data retrieval only. Misuse would have minimal blast radius—at worst, an agent reads unintended cell values, not modifies or deletes data.
From the tool's definition Tool name 'spreadsheet_get_cell' indicates retrieval of cell data from a spreadsheet. The pattern of 'get_' prefix conventionally denotes read-only operations. No description provided to suggest otherwise.
Documented attack patterns abuse exactly the kind of access spreadsheet_get_cell gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and FreeCAD Robust MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for spreadsheet_get_cell:
{
"version": "1",
"default": "deny",
"tools": {
"spreadsheet_get_cell": {}
}
}spreadsheet_get_cell is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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spreadsheet_get_cell. It is categorised as a Read tool in the FreeCAD Robust MCP Server MCP Server, which means it retrieves data without modifying state.
Register the FreeCAD Robust MCP Server MCP server in PolicyLayer and add a rule for spreadsheet_get_cell: 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 FreeCAD Robust MCP Server. Nothing to install.
spreadsheet_get_cell 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 spreadsheet_get_cell 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 spreadsheet_get_cell. 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.
spreadsheet_get_cell is provided by the FreeCAD Robust MCP Server MCP server (spkane/freecad-addon-robust-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 152 FreeCAD Robust MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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152 FreeCAD Robust MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.