Extract placeholder {{keys}} from a Google Docs template.
AI agents call extract_placeholders to retrieve information from Automagik Tools without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and parses placeholder information from a Google Docs template document. It performs a read-only operation that identifies template variables without creating, modifying, or deleting any data. The extraction of metadata about placeholders poses minimal security risk and has no side effects on the document or system state.
From the tool's definition Tool name 'extract_placeholders' and description 'Extract placeholder {{keys}} from a Google Docs template' indicate data retrieval with no modification. The verb 'extract' combined with 'from' denotes querying/reading content from an existing document.
Documented attack patterns abuse exactly the kind of access extract_placeholders gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Automagik Tools, and nothing reaches the server without passing your rules. This is the rule we recommend for extract_placeholders:
{
"version": "1",
"default": "deny",
"tools": {
"extract_placeholders": {}
}
}extract_placeholders is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Extract placeholder {{keys}} from a Google Docs template. It is categorised as a Read tool in the Automagik Tools MCP Server, which means it retrieves data without modifying state.
Register the Automagik Tools MCP server in PolicyLayer and add a rule for extract_placeholders: 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 Automagik Tools. Nothing to install.
extract_placeholders 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 extract_placeholders 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 extract_placeholders. 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.
extract_placeholders is provided by the Automagik Tools MCP server (namastexlabs/automagik-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Automagik Tools, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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