AI agents call get_version_tool to retrieve information from Apps Script MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves version information about Google Apps Script projects. It performs a query/read operation only, returning metadata about a version without modifying, deleting, or executing any code. No data is changed, no external operations are triggered, and no financial transactions occur. This is a straightforward read operation with minimal risk.
From the tool's definition Tool name 'get_version_tool' and description 'Get details of a specific version' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access get_version_tool gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apps Script MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_version_tool:
{
"version": "1",
"default": "deny",
"tools": {
"get_version_tool": {}
}
} get_version_tool is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get details of a specific version. It is categorised as a Read tool in the Apps Script MCP MCP Server, which means it retrieves data without modifying state.
Register the Apps Script MCP server in PolicyLayer and add a rule for get_version_tool: 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 Apps Script MCP. Nothing to install.
get_version_tool 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_version_tool 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_version_tool. 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_version_tool is provided by the Apps Script MCP server (sam-ent/google-automation-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Apps Script MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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60 Apps Script MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.