AI agents call list_rows to retrieve information from Coda without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves row data from a Coda table. There is no indication that it modifies, deletes, or executes operations—it simply queries and returns existing data. This is a classic Read operation. Confidence is slightly reduced to 0.92 rather than higher only because the description is empty, but the name and server context strongly indicate a retrieval function.
From the tool's definition Tool name is 'list_rows', which follows the naming convention of Read operations (list, get, fetch). The server's description indicates it supports 'table, row, and formula operations'; list_rows is a query/retrieval operation that returns rows from a table…
Documented attack patterns abuse exactly the kind of access list_rows gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Coda, and nothing reaches the server without passing your rules. This is the rule we recommend for list_rows:
{
"version": "1",
"default": "deny",
"tools": {
"list_rows": {}
}
}list_rows is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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list_rows. It is categorised as a Read tool in the Coda MCP Server, which means it retrieves data without modifying state.
Register the Coda MCP server in PolicyLayer and add a rule for list_rows: 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 Coda. Nothing to install.
list_rows 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 list_rows 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 list_rows. 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.
list_rows is provided by the Coda MCP server (tjc-lp/coda-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Coda, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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24 Coda tools catalogued and risk-classified — across an index of 43,000+ MCP servers.